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	Provedor de dados Organic Eprints (38) Autor Bellostas, Natalia (3) Hagel, I. (2) Hagel, Ingo (2) Haneklaus, S. (2) Kompetenzzentrum Ökolandbau Niedersachsen, (2) Sorensen, Hilmer (2) Sorensen, Jens Christian (2) Stolz, P. (2) Strube, J. (2) Velimirov, Alberta (2) Weibel, Franco P. (2) Adler, Steffen A. (1) Bauer, Dieter (1) Berg, Martin (1) Bigler, Christoph (1) Brandt, Dr. Kirsten (1) Brunner, Birgit (1) Christensen, Lars P. (1) Eilenberg, Jørgen (1) Eisele, Jons (1) Mais... Palavra-chave Protection Food security (38) Quality (38) Crop health (35) Food quality and human health (11) Genetics and propagation (5) Food quality and human health Breeding (3) Food quality and human health Cereals (3) Food quality and human health Weed management Breeding (3) Genetics and propagation Vegetables Composting and manuring (3) Food quality and human health Post harvest management and techniques Cereals (2) Food quality and human health Specific methods (2) Pulses and oilseeds Breeding (2) Environmental aspects Crop health (1) Food quality and human health "Organics" in general (1) Food quality and human health "Organics" in general Farming Systems Production systems Soil biology (1) Food quality and human health Biodiversity and ecosystem services (1) Food quality and human health Consumer issues (1) Food quality and human health Crop combinations and interactions Weed management Breeding (1) Food quality and human health Farm nutrient management Biodiversity and ecosystem services Greenhouses and coverings (1) Food quality and human health Feeding and growth (1) Mais... Tipo do documento Conference paper, poster, etc. (17) Project description (5) Report (5) Journal paper (3) Proceedings (3) Newspaper or magazine article (2) Report chapter (1) Research Programme description (1) Research facility description (1) Mais... Ano 2024 (7) 2009 (1) 2008 (1) 2007 (4) 2006 (6) 2005 (8) 2004 (2) 2003 (3) 2002 (3) 2001 (2) 2000 (1) Mais... País Germany (38) Idioma deu (12) Inglês (12) nor (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 38 Primeira ... 1 2 ... Última Einfluss von gentechnisch veränderten Pflanzen (GV Pflanzen) in der Schweizer Landwirtschaft Organic Eprints 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: 2024 Gehalte an Makro- und Mikroelementen sowie Zuckern in Möhren aus der biologisch-dynamischen und konventionellen landwirtschaftlichen Praxis Organic Eprints 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 Effect of ascorbic acid and glutathione on the production of nitriles by myrosinase Organic Eprints 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 Ressortforschung für den Ökologischen Landbau 2007 Organic Eprints 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 Micellar electrokinetic capillary chromatography—Synchronous monitoring of substrate and products in the myrosinase catalysed hydrolysis of glucosinolates Organic Eprints 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 Plantevern i vanlig og økologisk landbruk Organic Eprints 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 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 Organic Eprints 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 Risikomanagement von Pflanzenschutzmittel-Rückständen und Verunreinigungen mit ubiquitären persistenten Umweltschadstoffen bei Produkten des Ökologischen Landbaus Organic Eprints 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 CEREALICOLTURA BIOLOGICA: INTERVENTI AGROTECNICI E GENETICI PER IL MIGLIORAMENTO QUANTI-QUALITATIVO DEL FRUMENTO DURO E TENERO E LA VALORIZZAZIONE DEI PRODOTTI DERIVATI Organic Eprints 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: 2024 URL: http://orgprints.org/6817/1/Boggini.ppt The consistently superior quality of carrots from one organic farm in Austria compared with conventional farms Organic Eprints 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 Influence of pH and type of myrosinase complex on the products obtained in the myrosinase catalysed hydrolysis of glucosinolates – a MECC study Organic Eprints 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 Vergleichende Qualitätsuntersuchungen von alten und neuen Gemüsesorten zur Entwicklung von Zuchtzielen für den ökologischen Landbau Organic Eprints 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: 2024 Biogramm und Qualitätskennzahl Organic Eprints 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 & 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 Strategien für die Regulierung von Lagerschädlingen in Vorratsräumen und Fabriken für Produkte aus dem Ökolandbau Organic Eprints 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: 2024 Die Bestimmung des Physiologischen Aminosäurenstatus von Möhren und Weizen zur Unterscheidung ökol. und konv. Anbauvarianten Organic Eprints 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 Versuche im ökologischen Gemüsebau in Niedersachsen 2006 - Ergebnisse, Analysen, Empfehlungen. Organic Eprints 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 Sulfur and baking-quality of breadmaking wheat Organic Eprints 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 Penicillium verrucosum occurrence and Ochratoxin A contents in organically cultivated grain with special reference to ancient wheat types and drying practice Organic Eprints 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 Påvirker høstetid for gras innholdet av gunstige fettsyrer i økologisk melk? Organic Eprints 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 Sensory evaluation of juice from different organic blackcurrant cultivars Organic Eprints 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 Registros recuperados: 38 Primeira ... 1 2 ... Última

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