Consulta: subjectFacets:"Protection Food security"
Registros recuperados: 38
Data/hora: 12/06/2024 02:21:02

Påvirker høstetid for gras innholdet av gunstige fettsyrer i økologisk melk?
Provedor de dados: 21
Autores: Adler, Steffen A.; Randby, Åshild T.
Effekten av høstetid for økologisk eng i Nord-Norge på sammensetning av fettsyrer i melk ble undersøkt i et fôringsforsøk med melkekyr. Tidlig høsting av økologisk eng økte ytelsen og protein% i melk. Normal høstetid ga høyere fett% og en antatt helsemessig gunstigere sammensetning av melkefettet. Dette skyldtes bedre forhold mellom mettet og umettet fett samt mer CLA og transvaccensyre (C18:1t11). Innholdet av alfa-linolensyre (C18:3c9,12,15), og forholdet mellom omega-6 og omega-3 fettsyrer var gunstigst i melk fra tidlig høsta gras.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Feeding and growth.
Ano: 2005
URL: http://orgprints.org/6420/1/Adler_SLU2005_Pavirker_hostetid_for_gras......_poster.pdf

Sulfur and baking-quality of breadmaking wheat
Provedor de dados: 21
Autores: Hagel, Ingo.
It is well known in biological science that all factors applied to living organisms (light, water, warmth, fertilizers etc.) show an optimum, when their input is increased. Healthy organisms and sus-tainable systems are, on the long run, only achieved when care is taken not to destroy this equilibrium of factors producing an optimum. With regard to the baking quality of wheat breeders and cereal scientists obviously failed to achieve this aim by breeding their cultivars on the background of ample S depositions in the ecosystems. They (involuntarily) selected plants showing definite characteristics of S deficiency (higher proportions of HMW-glutenin, stronger gluten and dough) even under conditions of ample S supply. I suppose they also selected plants with...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Breeding; Genetics and propagation.
Ano: 2005
URL: http://orgprints.org/6130/1/Hagel_2005_China.pdf

Ecology of the ochratoxin A producing Penicillium verrucosum: Occurrence in field soil and grain with special attention to farming system and on-farm drying practices
Provedor de dados: 21
Autores: Elmholt, Susanne.
Mycotoxin contamination of organically grown cereals has been a growing concern during recent years, one of the most important being ochratoxin A (OTA). In countries with a temperate, humid climate, OTA is produced by Penicillium verrucosum and it is crucial to focus on the fungus to obviate problems. This paper presents results to elucidate different aspects of the ecology of P. verrucosum. In a survey of differently farmed soils, P. verrucosum was found in 11 out of  65 soils (35% of the organically and 7% of the conventionally cultivated), these being the first reports of its natural occurrence in soil. Except for two soils it was found with low frequencies (100-300 cfu g dry soil-1), and the results point to home grown seed as a potential risk of soil...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health "Organics" in general Farming Systems Production systems Soil biology.
Ano: 2003
URL: http://orgprints.org/21/1/21.pdf

Einfluss von gentechnisch veränderten Pflanzen (GV Pflanzen) in der Schweizer Landwirtschaft
Provedor de dados: 21
Ob und wie weit gentechnisch veränderte Pflanzen (GV Pflanzen) zur Nachhaltigkeit landwirtschaftlicher Produktionssysteme in der Schweiz beitragen, wird zur Zeit in der Öffentlichkeit und unter Wissenschaftern intensiv diskutiert.  Ziel dieses Projektes ist es, den Beitrag von GV Pflanzen zur Erreichung der Ziele der Schweizer Landwirtschafts- und Umweltpolitik abzuschätzen. Das Projekt wird die Auswirkungen von GV Pflanzen in konventionellen, integrierten und biologischen/extensiven Anbausystemen untersuchen. Dazu werden Szenarien neuartiger Anbausysteme (konventionell, integriert und biologisch/extensiv) entwickelt, welche den Anbau von GV Pflanzen einschliessen. Die Nachhaltigkeit traditioneller (ohne GV Pflanzen) und neuartiger (mit GV Pflanzen)...
Tipo: Project description
Palavras-chave: Policy environments and social economy Crop health; Quality; Protection Food security; Food quality and human health Biodiversity and ecosystem services.
Ano: 2023

Influence of pH and type of myrosinase complex on the products obtained in the myrosinase catalysed hydrolysis of glucosinolates – a MECC study
Provedor de dados: 21
Autores: Bellostas, Natalia; Sørensen, Jens C.; Sørensen, Hilmer.
Environmental conditions, e.g. pH and the presence of Fe2+ are well known factors that influence the product profile of the myrosinase catalysed hydrolysis of glucosinolates. Depending on the plant genera, the species and tissue of origin myrosinase isoenzymes (thioglucohydrolase EC 3.2.1.147) have different characteristics in terms of MW, subunit composition and pI. However, the influence of these parameters on the outcome of glucosinolate hydrolysis has not been traditionally studied, which hinders the full exploitation of the catalytic potential of these enzymes. In the present experiments the effect of myrosinase type on the products obtained in the hydrolysis of glucosibarin was studied by MECC using two B. carinata myrosinase preparations differing...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2007
URL: http://orgprints.org/11399/1/11399.pdf

Cereal crop diversity: Implications for production and products
Provedor de dados: 21
This proceeding comprises papers based on oral and poster presentations at the COST860 - SUSVAR workshop on cereal crop diversity held in La Besse, France, 13-14 June 2006. The main aims of the SUSVAR network are to ensure stable and acceptable yields of good quality for low-input, especially organic, cereal production in Europe. This will be achieved by developing ways to increase and make use of crop diversity, by establishing methods for selecting varieties, lines and populations taking into account genotype-environment interactions and by establishing common methodology for variety testing where appropriate.  The present workshop focused on ways to increase and make use of crop diversity from the   production to the product. As crop diversity often is...
Tipo: Proceedings
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Crop combinations and interactions Weed management Breeding; Genetics and propagation Biodiversity and ecosystem services Soil tillage.
Ano: 2006
URL: http://orgprints.org/10337/1/10337.pdf

Gehalte an Makro- und Mikroelementen sowie Zuckern in Möhren aus der biologisch-dynamischen und konventionellen landwirtschaftlichen Praxis
Provedor de dados: 21
Autores: Fleck, M.; von Fragstein, P.; Fleckenstein, J.; Haneklaus, S.; Hagel, I.
Mit dem Ziel, die Marktsituation für den Konsumenten hinsichtlich der Produktqualität zu beschreiben, wurden Proben von Speisemöhren des Anbaujahres 1996 aus der biologisch-dynamischen (n=57) und konventionellen (n=18) Praxis gesammelt. An den Möhren wurden Einzelrübengewicht, Trockenmasse, Mineralstoffe (P, K, Na, Ca, Mg, S, Fe, Zn, Mn, Cu, B, Pb, Cd) und Zuckergehalte (D-Glucose, D-Fructose, Saccharose) bestimmt. Wesentliches Differenzierungsmerkmal zwischen den Proben der beiden Anbausysteme war der Trockensubstanzgehalt, der bei den biologisch-dynamischen Möhren im Mittel um relativ 20% höher lag. Unter den Mengenelementen waren die Gehalte an Calcium, Magnesium, Natrium und   Schwefel in den konventionellen Rüben z.T. beträchtlich niedriger, die...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Markets and trade Vegetables.
Ano: 2001
URL: http://orgprints.org/3863/1/fleck_et_al_2001b.pdf

Ergebnisse einer Studie zur Formulierung eines arteigenen Profils von Einkorn
Provedor de dados: 21
Autores: Müller, Karl-Josef.
29 Kultureinkornsorten (Triticum monococcum L.) wurden unter Anbaubedingungen des ökologischen Landbaus auf sandigen Böden in Norddeutschland mit Weizen, Emmer und Dinkel verglichen. Einkorn zeichnete sich durch intensiv hellgrünes, festes Stroh und seine filigrane Gestalt aus. Bei der Aussaat im Frühherbst war die Anzahl der Bestockungstriebe bis zu zweimal so hoch wie bei Weizen, die Wuchshöhe der lag dagegen in den frühen Stadien niedriger und das Ährenschieben erfolgte 1 bis 12 Tage später. Die besten Einkornproben erzielten einen Ertrag von 60-70 % der Ernteerträge von Dinkel. Der Beta-Carotin-Gehalt war mit 1-2 % der Trockenmasse zwei bis drei mal so hoch wie bei Hartweizen üblich. Der Proteingehalt sowie die Gehalte an den essentiellen Aminosäuren...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2001
URL: http://orgprints.org/665/1/665%2Dmueller%2Dk%2Dj%2D2001%2Dwissenschaftstagung%2Deinkorn.pdf

New methods for organic raspberry production in polyethylene tunnels
Provedor de dados: 21
Raspberries for the fresh market is a new and very profitable crop in Norway, and the production in polyethylene tunnels is increasing rapidly. In Norwegian organic production, the experience so far is that using tunnels is a prerequisite if growing for the fresh market. The project focuses on the major bottlenecks in organic tunnel production of raspberries. The project will develop methods for controlling the most damaging pests (raspberry beetle, aphids and mites) and methods for secure and efficient supply of organic nutrients in tunnels. The research on raspberry beetle is a co-operation with Sottish Crop Research Institute.   An important task in this project is to extend the growing area for tunnel production further north, by utilizing the long...
Tipo: Research Programme description
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Farm nutrient management Biodiversity and ecosystem services Greenhouses and coverings.
Ano: 2023
URL: http://orgprints.org/14970/1/Project_description_final.pdf

Sensory evaluation of juice from different organic blackcurrant cultivars
Provedor de dados: 21
Autores: Kidmose, Ulla; Christensen, Lars P.; Lindhard Pedersen, Hanne; Thybo, Anette K.
To ensure a high, stable production of blackcurrant juice in Denmark, it is necessary with high-yielding blackcurrant cultivars, which are resistant against pest and diseases, and that have a high sensory quality and high health value. In this experiment, blackcurrant juice processed from berries of 12 organic cultivars was screened. A trained sensory panel using descriptive sensory profiling evaluated the sensory quality of the juice samples. In addition, the aroma profile and the content of vitamin C were determined in the juice samples. The results showed that the following sensory attributes: blackcurrant aroma, blackcurrant flavour, fruity flavour, pungent flavour, sweetness and sourness varied significantly in the 12 juice samples. In addition the...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2006
URL: http://orgprints.org/7688/1/paper_organicjuice2006_final.pdf

Versuche im ökologischen Gemüsebau in Niedersachsen 2006 - Ergebnisse, Analysen, Empfehlungen.
Provedor de dados: 21
Autores: Kompetenzzentrum Ökolandbau Niedersachsen,.
Möhre  - Sortenvergleichsanbau mit verschiedenen z.T. ökologisch vermehrten Möhrensorten, Teil 1   - Sortenvergleichsanbau mit verschiedenen z.T. ökologisch vermehrten Möhrensorten, Teil 2   - Wirksamkeit der Heißwasserbehandlung des Saatguts auf den Laubbefall mit Alternaria  - Bekämpfung von Alternaria-Blattflecken in Möhren   - Regulierungsstrategien gegen pflanzen- parasitäre Nematoden (Meloidogyne hapla) in der Fruchtfolge   Zwiebel  - Feststellen der Sorteneignung für den ökologischen Anbau unter Berücksichtigung bestimmter Herkünfte  - Entwicklung einer standortgerechten Nährstoffversorgung von Speisezwiebeln   - Beurteilung eines Vergleichs von Steckzwiebelanbau und des Anbaus gepflanzter Säzwiebeln  - Möglichkeiten des Striegeleinsatzes zur...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Weed management Breeding; Genetics and propagation Vegetables Composting and manuring.
Ano: 2007
URL: http://orgprints.org/15308/1/Versuche_im_oekol._Gemuesebau_in_Niedersachsen_2006.pdf

CRA - Istituto sperimentale per la Valorizzazione Tecnologica dei Prodotti Agricoli: laboratorio mobile per l'analisi sensoriale.
Provedor de dados: 21
Il laboratorio mobile, montato su camion Daily IVECO, è costituito da una stanza per analisi sensoriale con postazioni per 6 persone. L'automezzo inoltre ospita una cucina per la preparazione dei campioni da sottoporre ad analisi. Il laboratorio mobile di analisi sensoriale è stato progettato per l'utilizzo in aziende agricole, campi sperimentali, fiere e così via.
Tipo: Research facility description
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2023

Getreidebau
Provedor de dados: 21
Autores: Berg, Martin; Schenke, Holger; Eisele, Jons; Leisen, Edmund; Paffrath, Andreas.
Einleitung:  Der Getreidebau war in der ersten Phase ein Schwerpunkt im Leitbetriebe-Projekt. Nicht zuletzt aufgrund sinkender Getreidepreise wurden in der Folge verstärkt Kulturen mit höherer Wertschöpfung als Getreide wie bspw. Feldgemüse oder Kartoffeln wissenschaftlich bearbeitet. Auf allen Leitbetrieben wird Getreide in unterschiedlich starkem Ausmaß angebaut. Bis heute werden Untersuchungen zur Sortenwahl bei Winterroggen, Winter- und Sommerweizen sowie Dinkel durchgeführt. Die auf Leitbetrieben durchgeführten Sortenversuche fließen in eine die Bundesländer übergreifende Auswertung ein, um auf Basis eines abgestimmten Grundsortiments fundierte Sortenempfehlungen erstellen zu können. Als zentrales Thema des Getreidebaus wurde die Frage der...
Tipo: Report chapter
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Cereals; Pulses and oilseeds Weed management.
Ano: 2003
URL: http://orgprints.org/1221/2/1221%2Dberg%2Dm%2Det%2Dal%2D2003%2Dleitbetriebe%2Dgetreide.pdf

Plantevern i vanlig og økologisk landbruk
Provedor de dados: 21
Autores: Koesling, Matthias; Serikstad, Grete Lene.
I konvensjonelt landbruk brukes kjemisk-syntetiske sprøytemidler mot ugras, sopp og insekter og for å regulere veksten. I økologisk drift er forebyggende tiltak viktig og kjemisk-syntetiske sprøytemidler brukes ikke.
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Weed management.
Ano: 2007
URL: http://orgprints.org/10603/1/Tema_12_2007_Plantervern_i_vanlig_og_oeko.pdf

Stable and attractive organic bread based on increased usage of Norwegian grown wheat
Provedor de dados: 21
The project shall lead to increased use of Norwegian wheat in organic bread, and establish a knowledge step-stone needed for contributing to the National goal of 15% organic food consumption. An increasing amount of organic grown wheat is produced in Norway, but it fails to reach the organic market. The bakeries producing organic bread use imported wheat due to unstable quality of the Norwegian wheat. In order to use more Norwegian organic wheat for food there is a need for more stable quality, improved utilisation of quality control, sorting and blending to level out variations, and improved knowledge on how the baking process can be adapted to the flour quality. By creating knowledge on how gluten proteins are built up during the growing season when...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2023

First results with the Gas Discharge Visualisation (GDV) method (Kirlian photography) to assess the inner Quality of apples
Provedor de dados: 21
Autores: Weibel, Franco P.; Saikov, Aleksander; Bigler, Christoph.
GDV technology can provide useful information for distinguishing healthy and stressed plants and, in some cases, it can provide useful information for distinguishing different varieties and rootstocks. It can also provide information for distinguishing fruits grown using different fertilization treatments. However, in our cases with fruit of very similar standard quality, we were not able to find complementary information to distinguish organically from conventionally grown apple fruit. Currently we are carrying out two larger and refined studies on just that topic with 5 conventional/ organic comparison pairs from harvests of two years.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/7002/1/weibel%2D2005%2DPosterFQH_GDV.pdf

Risikomanagement von Pflanzenschutzmittel-Rückständen und Verunreinigungen mit ubiquitären persistenten Umweltschadstoffen bei Produkten des Ökologischen Landbaus
Provedor de dados: 21
Autores: Neuendorff, Jochen.
Die Qualität von Bio-Produkten kann auch bei vollständiger Einhaltung der Richtlinien für den Ökologischen Landbau durch Rückstände von Pflanzenschutzmitteln oder Umweltschadstoffen aus dem Boden oder der Luft beeinträchtigt werden. Die vorliegende Arbeit beschreibt die gesetzlichen und privatrechtlichen Rahmenbedingungen für das Risikomanagement von Rückständen und Kontaminationen von Produkten aus Ökologischem Landbau.  Für den Bereich Pflanzenschutzmittelrückstände wird ein Manual "Risikomanagement von Pflanzenschutzmittelrückständen in Lebensmitteln aus Ökologischem Landbau" vorgelegt, das im Rahmen eines Unterauftrags von Martin Rombach erarbeitet wurde. Es wendet sich an Unternehmen der ökologischen Lebensmittelwirtschaft, die zur Qualitätssicherung...
Tipo: Report
Palavras-chave: Environmental aspects Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2006
URL: http://orgprints.org/10658/4/10658%2D03OE461%2DGfRS%2Dneuendorff%2D2006%2Dumweltschadstoffe.pdf

Qualität von Ökobrotgetreide weiter verbessern
Provedor de dados: 21
Autores: Brunner, Birgit.
Um die Backqualität von Getreide aus ökologischem Anbau weiter zu verbessern, sollten alle Möglichkeiten genutzt werden, der der Ökolandbau zur Steigerung der Qualität bietet. Der Artikel gibt nicht nur einen Überblick über die verwendeten Getreidesorten und -arten mit ihren Vor- und Nachteilen, sondern auch Tipps zur Qualitätssteigerung durch angepasste Anbautechniken.
Tipo: Newspaper or magazine article
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2002
URL: http://orgprints.org/1224/1/Getreidequalit.pdf

Effect of ascorbic acid and glutathione on the production of nitriles by myrosinase
Provedor de dados: 21
Autores: Bellostas, Natalia; Sorensen, Jens Christian; Sorensen, Hilmer.
Biofumigation is based on the use of glucosinolate-containing plants for the control of soil-borne pest and diseases. Upon tissue damage, glucosinolates are hydrolyzed by endogenous enzymes (myrosinase) and a range of biologically active compounds are formed. Isothiocyanates (ITCs) are the quantitatively dominating products formed at neutral pH. Most of these compounds are volatile and only sparingly soluble in aqueous systems, and depending on the R-group structure and the presence of nucleophiles, further transformation of ITCs occurs. At lower pH and in the presence of certain molecules able to deliver two redox equivalents, the proportion of nitriles increases at the expense of ITC.   The effect of ascorbic acid and glutathione on the production of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2006
URL: http://orgprints.org/9263/1/9263.pdf

Status og nye udfordringer: Biologisk bekæmpelse af skadedyr
Provedor de dados: 21
Autores: Eilenberg, Jørgen; Jespersen, Jørgen B.
Biologisk bekæmpelse var en succes, da det blev introduceret første gang i 1880'erne i Californien. I artiklen defineres forskellige strategier og vi gør status over den faktiske brug af biologisk bekæmpelse, både i Danmark og globalt. Der er fortsat et stort potentiale for biologisk bekæmpelse, og metoden er mere aktuel end nogensinde. Der er dog fortsat behov for at vide mere om organismerne og deres samspil med andre arter og deres omgivelser.
Tipo: Newspaper or magazine article
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Regulation Consumer issues Biodiversity and ecosystem services.
Ano: 2008
URL: http://orgprints.org/14148/1/14148.pdf

CEREALICOLTURA BIOLOGICA: INTERVENTI AGROTECNICI E GENETICI PER IL MIGLIORAMENTO QUANTI-QUALITATIVO DEL FRUMENTO DURO E TENERO E LA VALORIZZAZIONE DEI PRODOTTI DERIVATI
Provedor de dados: 21
In order to guarantee a suitable income to the farmers and  respond to the consumers’ demand, European Commission has proposed new guidelines for the cultivation of cereals. Such proposal strictly depends on: previous decisions of the Community which didn’t give the expected results; the  presence of new exporting countries on the international market; the variable cereal production of the last years. Being the new guidelines involving further economic sacrifices of the cereal farmers this project would become essential to recover a strong competitiveness on the international cereals' market.  The competitiveness of cereal sector can be increased by innovative high quality varieties  and the set up of suitable cultural techniques maximizing the germoplasm...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Cereals; Pulses and oilseeds Farming Systems Breeding; Genetics and propagation.
Ano: 2023
URL: http://orgprints.org/6817/1/Boggini.ppt

Ressortforschung für den Ökologischen Landbau 2007
Provedor de dados: 21
Tipo: Proceedings
Palavras-chave: Nutrient turnover Cereals; Pulses and oilseeds Breeding; Genetics and propagation Vegetables Crop husbandry Crop health; Quality; Protection Food security; Food quality and human health Post harvest management and techniques Markets and trade Processing; Packaging and transportation Root crops Farm nutrient management Produce chain management Soil tillage.
Ano: 2007
URL: http://orgprints.org/12973/1/201_Ressortforschung_2007_Seite_1_bis_167_komplett.pdf

Versuche im ökologischen Gemüsebau in Niedersachsen 2003 - Ergebnisse, Analysen, Empfehlungen.
Provedor de dados: 21
Autores: Kompetenzzentrum Ökolandbau, Niedersachsen (Hrsg.).
Inhalt:  .  GEMÜSEERBSE  Ermittlung der Keimfähigkeit bei Gemüseerbsen in unterschiedlichen Verfahren  Eignung verschiedener Erbsensorten für die industrielle Verarbeitung  Einfluss unterschiedlicher Bestandesdichten auf die Ertragsfähigkeit bei Gemüseerbsen  Unkrautregulierung in Gemüseerbsen  Evaluierung von Regulierungsansätzen für den Erbsenwickler (Cydia nigricana) als Qualitätsrisiko in Gemüse- und Saaterbsen  Bekämpfung des Erbsenwicklers (Cydia nigricana) in Gemüseerbsen  Bekämpfung der Grünen Erbsenblattlaus (Acyrthosiphon pisum) in Körnererbsen  Mineralisation von Stickstoff aus Erbsen-Ernterückständen  BUSCHBOHNE  Eignung von Buschbohnensorten für die industrielle Verarbeitung im biologischen Anbau  Einfluss der Bestandesdichte auf Ertrag und...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Weed management Breeding; Genetics and propagation Vegetables Composting and manuring.
Ano: 2004
URL: http://orgprints.org/4190/1/4190_koen_2004_gemuese03_versuche.pdf

Innenbrand und Mineralstoffgehalte verschiedener Sorten Eis- und Kopfsalat aus biologisch-dynamischem Anbau
Provedor de dados: 21
Autores: Hagel, Dr. Ingo; Haneklaus, Prof. Dr. Silvia; Schnug, Prof. Dr. Ewald.
Im Salatkopf können die Blattränder Nekrosen (sog. Innenbrand) aufweisen. Dies steht in Zusammenhang mit einem unzureichenden Calcium Transport in die Blätter, da Ca als essentieller Baustein biologischer Membranen benötigt wird und Pektinsäure der Mittellamelle der Zelle zu Ca-Pektinat absättigt. Innenbrand kann bis zu Totalausfällen, einhergehend mit hohen Einnahmeverlusten führen. Die Ursache für diesen Qualitätsmangel liegt jedoch nicht in einem zu geringen Ca-Gehalt des Bodens, sondern u.a. in der Immobilität von Ca in der Pflanze, einem übermäßigen N-Angebot, einem zu schnellen Wachstum der Pflanze, ungünstigen Transpirationsbedingungen, empfindlichen Sorten sowie zu geringem Wurzelwerk. Offensichtlich werden bei der Züchtung neuer Sorten präventive...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Breeding; Genetics and propagation.
Ano: 2002
URL: http://orgprints.org/6274/1/Hagel_2002_Salat_DGQ.pdf

Towards Improved Quality in Organic Food Production
Provedor de dados: 21
From 21 to 23 January 2009 the fifth QLIF training and exchange workshop took place. Inspired by the theme “Towards improved quality in organic food production” a group of 20 participants and 11 lecturers had intensive days with lectures, discussion, exchange and some practical experience in research set-up and taste experiments. Fifteen nationalities exchanged their experiences in research in product quality. Many results from comparative studies between conventional and organic products were presented and discussed. In some presentations more emphasis was laid on exploring the mechanism behind the presence or absence of certain health-influencing plant components. Comparative studies will be continued, but exploring the mechanisms behind found...
Tipo: Proceedings
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Consumer issues.
Ano: 2009
URL: http://orgprints.org/15398/1/2099.pdf

Vergleichende Qualitätsuntersuchungen von alten und neuen Gemüsesorten zur Entwicklung von Zuchtzielen für den ökologischen Landbau
Provedor de dados: 21
Am Beispiel ausgewählter Gemüsearten (Möhren und Kohl) werden alte und neue Sorten sowie Sorten aus biologisch-dynamischer Selektion auf ihre Qualitätsmerkmale hin verglichen. Eine definierte Sortenanzahl jeden Typs wird zusammen angebaut, die morphologischen Kriterien, Ertrag und Sortierung werden ermittelt. Die Versuche werden auf unterschiedlichen Betrieben parallel durchgeführt, die häufig unterschiedlichen Bodentypen finden in der Analytik Beachtung. Die qualitativen Untersuchungen nach der Ernte umfassen die Bestimmung der Inhaltsstoffe und die sensorische Prüfung. Mittels HPLC werden die Inhaltsstoffe (u.a. Zucker, Vitamingehalt, phenolische Inhaltsstoffe, Glukosinolate und Bitterstoffe) bestimmt, die sowohl den Gesundheitswert als auch den...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Vegetables Soil quality.
Ano: 2023

Versuche im ökologischen Gemüsebau in Niedersachsen 2004 - Ergebnisse, Analysen, Empfehlungen.
Provedor de dados: 21
Autores: Kompetenzzentrum Ökolandbau Niedersachsen,.
Inhalt   .  Möhre   - Sortenvergleichsanbau mit verschiedenen z.T. ökologisch vermehrten Möhrensorten, Teil 1  - Sortenvergleichsanbau mit verschiedenen z.T. ökologisch vermehrten Möhrensorten, Teil 2  - Anbauversuch zur Wirksamkeit der Heißwasserbehandlung des Saatgutes auf den Laubbefall mit Alternaria an einer Möhrensorte  - Feststellen der Wirksamkeit verschiedener Pflanzenschutz u. –stärkungsmittel gegen Laubkrankheiten der Möhre (speziell Alternaria)  - Meloidogyne hapla – Entwicklungszyklus und Temperatursumme  - Einfluss verschiedener Feldfrüchte auf die Population von Meloidogyne hapla  .  Zwiebel   - Feststellen der Sorteneignung für den ökologischen Anbau unter Berücksichtigung bestimmter Herkünfte  - Entwicklung einer standortgerechten...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Weed management Breeding; Genetics and propagation Vegetables Composting and manuring.
Ano: 2005
URL: http://orgprints.org/4779/1/Versuche_%C3%B6kol._Gem%C3%BCsebau_Niedersachsen_2004.pdf

Effect of organic and conventional crop production systems on food quality and safety
Provedor de dados: 21
Autores: Schmidt, Dr. Christoph S; Lueck, Dr. Lorna; Shotton, Peter; Seal, Dr. Chris J; Brandt, Dr. Kirsten; Leifert, Prof. Carlo.
A range of comparative studies have recently been carried out to compare the composition of foods produced in organic, “low input” and conventional production systems. This paper will review the currently available information on nutritional differences between organic and non-organic crops. It will also describe the Nafferton Factorial Systems Experiment which was established as part of the IP Quality-LowInputFood to study the effect (and interactions between) (a) rotational design, (b) fertility management and (c) crop protection regimes on crop quality and safety.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2006
URL: http://orgprints.org/8099/1/SchmidtNutritional_quality_of_organic_food_%2D_Odense_2006r.pdf

Geschmack- und gesundheitsrelevante Qualität von ökologisch angbauten Äpfeln: Eine 3jährige Feldvergleichsstudie mit standard- und ganzheitlichen Untersuchungsmethoden
Provedor de dados: 21
Autores: Weibel, Franco P.; Treutter, Dieter; Graf, Ursula; Häseli, Andi.
In a 3 years lasting field study with the ‘Golden Delicious’ cultivar, we compared fruits of 5 pairs of organic/integrated fruit farms. The orchards were similar in microclimate, soil conditions and planting system. To assess inner fruit quality we investigated at the beginning and at the end of cold storage: (i) standard parameters (firmness, sugar, malic acid., mineral content); (ii) sensorial quality by panel tests; (iii) health related components (23 phenolic compounds, nutritional fibres; vitamins); and (v) fruit «vitality quality» by holistic approaches (crystallisation in copper chloride, self degradation tests, feeding preference tests with laboratory rats).  The most significant differences were found in year one of the study, and were by tendency...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Fruit and berries.
Ano: 2004
URL: http://orgprints.org/9100/1/Weibel%2Detal%2D2004%2DQual_Weinsberg_04.pdf

Strategien für die Regulierung von Lagerschädlingen in Vorratsräumen und Fabriken für Produkte aus dem Ökolandbau
Provedor de dados: 21
Der ökologische Landbau arbeitet mit Methoden, die sich gegenüber der konventionellen Lebensmittelproduktion durch höhere Umweltfreundlichkeit auszeichnen. Dies sollte auch für die Methoden gelten, mit welchen Bio-Produkte bei der Lagerung vor Schädlingen geschützt werden. Das Projekt erarbeitet und erprobt biologische Methoden zur Schädlingsbekämpfung für den Vorratsschutz, um diese für potentielle Nutzer bereit zu stellen. Dazu sollen biologische Parameter von Schädlingen und Nützlingen im Labor und unter Anwendungsbedingungen erfasst werden. Um wichtige Parameter der Nutzung (z.B. Freilassungsorte, -zeitpunkte, -mengen) festzulegen, sollen die Bedingungen ermittelt werden, unter denen ökologische Produkte vom Erzeuger (bäuerliches Kleinlager), bei der...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Post harvest management and techniques Cereals; Pulses and oilseeds Processing; Packaging and transportation.
Ano: 2023

Quality Assessment of Summer and Autumn Carrots from a Biodynamic Breeding Project and Correlations of Physico-Chemical Parameters and Features determined by Picture Forming Methods
Provedor de dados: 21
Autores: Hagel, Ingo; Bauer, Dieter; Haneklaus, Silvia; Schnug, Ewald.
Assessment of product quality is of special significance in organic farming and includes the supervision of crop quality in different growing systems and the characterisation of different cultivars. Several methods have been developed and applied for this purpose, e.g., the physico-chemical analysis of crops, picture forming methods (PFMs) and plant observation. So far only limited information is available on the com-parability of these methods. This contribution aims to compare the results of the analysis of physico-chemical parameters of summer and autumn carrots with features determined by PFMs by means of correlation analysis. High and significant correlation coefficients were found between quality parameters of summer and autumn carrots from a...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Breeding; Genetics and propagation.
Ano: 2000
URL: http://orgprints.org/6128/1/Hagel_2000_M%C3%B6hren_BSM_IFOAM_2000.pdf

Micellar electrokinetic capillary chromatography—Synchronous monitoring of substrate and products in the myrosinase catalysed hydrolysis of glucosinolates
Provedor de dados: 21
Autores: Bellostas, Natalia; Sorensen, Jens Christian; Sorensen, Hilmer.
A micellar electrokinetic capillary chromatography (MECC) method has been developed for monitoring the myrosinase catalysed hydrolysis of 2-hydroxy substituted glucosinolates and the simultaneous formation of the corresponding degradation products (oxazolidine-2-thiones (OZTs) and nitriles). Glucosibarin ((2R)-2-hydroxy-2-phenylethylglucosinolate) was chosen as the model glucosinolate owing to the difficulties in determining hydrolysis rates of this type of substrates in traditional UV-assays. The method was afterwards validated with glucobarbarin ((2S)-2-hydroxy-2-phenylethylglucosinolate) and progoitrin ((2R)-2-hydroxybut-3-enylglucosinolate). Aromatic glucosinolates without a 2-hydroxy group in their side chains, such as glucotropaeolin...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2006
URL: http://orgprints.org/9260/1/9260.pdf

Biogramm und Qualitätskennzahl
Provedor de dados: 21
Autores: Velimirov, Alberta.
The quality assessment and comparison of differently cultivated products still represents a problem. On the one hand “quality” comprises many, mostly target group oriented aspects, necessitating the application of relevant methods, on the other hand the interpretation of diviating results is not easy or suitable to corroborate cultivation dependent quality aspects systematically.   Some scientists have already tried to tackle that problem and developed quality indices by integratig different quality parameters (BREDA 1973, HUBER et al. 1988, SCHULZ &amp; KÖPKE 1997).  The aim of this presentation is to reach a grafic and numeric interpretation of results obtained from different methods. Although organic quality research corresponds to the holistic...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health.
Ano: 2003
URL: http://orgprints.org/2083/1/Velimirov%2D2003%2Dbiogramm_quality%2Dcount.pdf

Innenbrand und Mineralstoffgehalte verschiedener Sorten Eis- und Kopfsalat aus biologisch-dynamischem Anbau.
Provedor de dados: 21
Autores: Hagel, I.; Haneklaus, S.; Schnug, E.
Fazit  Die Mineralstoffgehalte von 12 Sorten Eis- und Kopfsalat aus biologisch-dynamischem Anbau wiesen starke inverse Beziehung zu den ebenfalls sehr unterschiedlichen Kopfgewichten auf, da vermutlich das Wachstum von Kopf und Wurzeln nicht im Gleichgewicht steht. Innenbrand stand in starker Beziehung zu den Ca-Gehalten, wenn die Kopfgewichte in die Betrachtung einbezogen wurden. Speziell die biologisch-dynamische Züchtung sollte sowohl mit Blick auf den Innenbrand als auch die Nahrungsqualität nicht nur das Wachstum des oberirdischen sondern auch des unterirdischen Teils der Salatpflanze fördern.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Vegetables.
Ano: 2002
URL: http://orgprints.org/2272/1/2272%2Dhagel%2Di%2Det%2Dal%2D2002%2Dmoehren%2Ddgq.pdf

Identifizierung von ökol. u. konv. Anbauvarianten bei DOK-Weizen mittels Fluoreszenz-Anregungs-Spektroskopie
Provedor de dados: 21
Autores: Strube, J.; Stolz, P.
At coded samples of wheat out of the DOK-trial of FiBL (Switzerland) it was possible to identify the organic and conventional grown variants. The method used was fluorescence-excitation-spectroscopy of whole samples. It was also possible to show differences between biodynamic and organic variants.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Specific methods.
Ano: 2005
URL: http://orgprints.org/3778/1/3778.pdf

Die Bestimmung des Physiologischen Aminosäurenstatus von Möhren und Weizen zur Unterscheidung ökol. und konv. Anbauvarianten
Provedor de dados: 21
Autores: Stolz, P.; Strube, J.
A procedure for the differentiation and identification of organic versus conventional grown crop is described. The validated (ISO 17025) procedure is based on the precise Determination of the N-Metabolom of the cultivated plant. With this procedure it was possible to distinguish organically from conventionally grown crops.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Specific methods.
Ano: 2005
URL: http://orgprints.org/3774/1/3774.pdf

The consistently superior quality of carrots from one organic farm in Austria compared with conventional farms
Provedor de dados: 21
Autores: Velimirov, Alberta.
The aim of this 5 year investigation was to compare quality parameters of differently cultivated carrots of the same cultivar grown in the same region as well as to compare the relevance of different methods of analysis to differentiate between these products.  The following quality tests were applied:   • Sensory tests (all harvests)  • Food preference tests with laboratory rats (all harvests)  • Decomposition tests (all harvests)  • P-value determination (all harvests)  • Single-Photon-Counting (1999)  • Chemical analysis of the main components (1998 and 1999)  It could be shown that carrots (var. Tarvil) grown using an organic farming method were significantly preferred by humans and laboratory rats, lost significantly less dry matter during...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health "Organics" in general.
Ano: 2005
URL: http://orgprints.org/9034/1/Velimirov_Adalaide_paper.pdf

Penicillium verrucosum occurrence and Ochratoxin A contents in organically cultivated grain with special reference to ancient wheat types and drying practice
Provedor de dados: 21
Autores: Elmholt, S.; Rasmussen, P.H.
This study addresses the relationship between the ochratoxigenic strains of Penicillium verrucosum and ochratoxin A (OTA) contents in organically cultivated grain. It included 37 combined, non-dried grain samples from farmers with no drying facilities as well as 19 non-dried and 22 dried samples from six farms with on-farm drying facilities (Case studies 1-6). The study focused on the ancient wheat type spelt but also included samples of wheat, rye, barley, oats, triticale, emmer, and einkorn. All 78 samples were analysed for moisture content (MC) and occurrence of P. verrucosum. The latter was assessed by plating non-disinfected kernels on DYSG agar and counting those contaminated by the fungus. Fiftyfive samples were analysed for OTA. Most of the combine...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Post harvest management and techniques Cereals; Pulses and oilseeds.
Ano: 2005
URL: http://orgprints.org/3330/1/3330.pdf