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Bio-fortification and isotopic labelling of Se metabolites in onions and carrots following foliar application of Se and 77Se Organic Eprints
Kapolna, Emese; Laursen, Kristian Holst; Husted, Søren; Larsen, Erik H..
The aims were to bio-fortify onions by foliar application of selenium (Se) and to intrinsically label bioactive Se-metabolites in onion and carrot by enriched, stable77Se for use in human physiological studies. Onion bulbs and leaves were enriched in Se by repeated foliar spraying of 10 or 100 μg Se mL-1 solutions of sodium selenite (Se(IV)) or sodium selenate (Se(VI)). ICP-MS analysis of onion leaves and bulbs showed that the Se concentration was enhanced by up to a factor of approximately 50 and 200 in bulbs and leaves, respectively. HPLC-ICP-MS analysis of proteolytic plant extracts showed that foliar application of Se(IV) gave rise to bio-synthesis of a higher fraction of the desired organic Se species and was better tolerated by the plants than...
Tipo: Journal paper Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection.
Ano: 2011 URL: http://orgprints.org/19812/1/FOODCHEM-D-11-03087R1.pdf
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Tagungsreader: Statusseminar "Das Neuste aus der Ressortforschung für den Ökologischen Landbau 2006" Organic Eprints
INHALTSVERZEICHNIS: . VORWORT Gerold Rahmann und Rainer Oppermann (FAL-OEL): Ökolandbau und Biomärkte 2005 . BODEN/PFLANZE Corinna Rüfer (BFEL-KA): Sekundäre Pflanzenstoffe in ökologisch und konventionell angebautem Gemüse und Obst. Rita Grosch (IGZ): Selektion von Antagonisten gegen Rhizoctonia solani. Uta Schnock (BSA): Wertprüfungen für den Ökolandbau der Arten Winterweichweizen, Sommergerste und Kartoffel. Bärbel Jansen (BfR): Potentielle Allergenität von konventionell versus ökologisch produziertem Gemüse. Stefan Kühne (BBA): Feldversuche der Biologischen Bundesanstalt für Land- und Forstwirtschaft zum Pflanzenschutz im Ökologischen Landbau. Ulrich Darsow (BAZ): Prebreeding auf Phytophthora-Resistenz der Kartoffel - Ergebnisse eines...
Tipo: Proceedings Palavras-chave: Breeding; Genetics and propagation Germany Sheep and goats Health and welfare Breeding and genetics Food security; Food quality and human health Crop health; Quality; Protection Markets and trade.
Ano: 2006 URL: http://orgprints.org/7683/1/7683%2Drahmann%2Dg%2D2006%2DStatusseminar.pdf
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Einsatz und Etablierung von Raubmilben zur nachhaltigen Spinnmilbenkontrolle in der Sonderkultur Hopfen Organic Eprints
Jereb, Marina; Weihrauch, Florian.
In den Jahren 2013 bis 2015 wurden im Rahmen eines von der BLE geförderten Forschungsprojektes der Einsatz und die Etablierung von Raubmilben zur nachhaltigen Spinnmilbenkontrolle an fünf Versuchsstandorten im bayerischen Anbaugebiet Hallertau mit den autochthonen Raubmilben (a) Typhlodromus pyri und (b) Amblyseius andersoni sowie einer Mischung aus den allochthonen Raubmilbenarten (c) Phytoseiulus persimilis und Neoseiulus californicus untersucht. Im Fokus des Projektes stand die dauerhafte Ansiedlung der heimischen Art Typhlodromus pyri. Dafür wurden in den Fahrgassen Einsaaten von Rohrschwingel Festuca arundinacea, einer Grünlandmischung (BQDSM-2a) sowie Erdbeeren als Mischkultur angelegt. Im Zuge der drei-jährigen Forschungsarbeiten mit insgesamt 15...
Tipo: Report Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection.
Ano: 2016 URL: http://orgprints.org/30286/1/30286-12NA014-lfl-bayern-weihrauch-2016-spinnmilbenkontrolle-hopfen.pdf
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Einsatz und Etablierung von Raubmilben zur nachhaltigen Spinnmilbenkontrolle in der Sonderkultur Hopfen Organic Eprints
Die Gemeine Spinnmilbe Tetranychus urticae ist einer der beiden Hauptschädlinge des Kulturhopfens, zu dessen Kontrolle auf einem Großteil der Anbauflächen nicht nur in Deutschland, sondern europa- wie weltweit regelmäßig und meist rein prophylaktisch Akarizide eingesetzt werden. Die nachhaltige Spinnmilbenkontrolle durch etablierte Populationen von Raubmilben im Bestand, wie sie in Deutschland z.T. im Wein- oder Obstbau praktiziert wird, ist derzeit im Hopfen nicht möglich, da bei der Ernte die oberirdischen Pflanzenteile fast komplett vom Feld entfernt werden und somit keine brauchbaren Strukturen für eine Überwinterung der Nützlinge zur Verfügung stehen. Dass es in dieser Kultur jedoch möglich ist, über den Einsatz gezüchteter Raubmilben eine...
Tipo: Project description Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection.
Ano: 2024
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Zu einer Weiterentwicklung des Qualitätsbegriffes im Ökologischen Landbau Organic Eprints
Hagel, Ingo.
Die Forschung zur (Produkt)qualität im ökologischen Landbau ist in eine Sackgasse geraten. Neue Konzepte statt neuer Methoden müssen entwickelt werden, um weiterzukommen.
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Research communication and quality.
Ano: 2003 URL: http://orgprints.org/2319/1/2319%2Dhagel%2Di%2D2003%2Dqualitaet%2Dwien.pdf
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Økologisk kost og sundhed Organic Eprints
Brandt, Kirsten.
In 2000-2001 a review was produced on the topic "Organic food and human health", (http://www.agrsci.dk/foejo/DK/sider/pub/fojorap.html ). The review evaluated a large number of studies comparing the constituents of organic and conventional foods, as well as feeding studies comparing reproduction and health of animals fed with organic or conventional feed. Additionally studies on the connection between consumer values and food production systems were reviewed. The results showed that organic plant foods consistently contain more vitamin C, natural pesticides and higher dry weight percentage, less b-carotene, pesticide residues and protein, but the protein has a higher percentage of essential amino acids than in conventional plants. Organic animal...
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Specific methods.
Ano: 2002 URL: http://orgprints.org/1704/1/oekokost_og_sundhed.pdf
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Optimierung der ökologischen Kartoffelproduktion Organic Eprints
Böhm, Herwart; Buchecker, Kirsten; Dresow, Jana; Dreyer, Wilfried; Landzettel, Christian; Mahnke-Plesker, Sylvia; Westhues, Franz.
Zusammenfassungen des Verbundvorhabens „Optimierung der ökologischen Kartoffelproduktion“ (FKZ 06 OE 125) "Aufarbeitung und Diskussion des aktuellen Wissens, Ableitung des weiteren Forschungsbedarfes unter Einbeziehung von Forschung, Beratung und Praxis". Ziel des Gesamtprojektes war es, einen Beitrag zur Weiterentwicklung und Optimierung des ökologischen Kartoffelanbaus zu leisten. Das Gesamtvorhaben bestand aus drei Projekten und wurde durch das Institut für Ökologischen Landbau koordiniert. Im Rahmen des Projektes wurden umfangreiche Literaturrecherchen, die neben produktionstechnischen Themen vor allem die Frage der Ausbildung des „Flavours“, d.h. des Geschmacks und Geruchs bei Kartoffeln sowie deren Beeinflussung durch anbautechnische Maßnahmen...
Tipo: Book Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Root crops.
Ano: 2011 URL: http://orgprints.org/19415/1/19415%2D06OE125%2Dvti%2Dboehm%2D2011%2Doptimierung_kartoffelproduktion.pdf
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Organic food and health – a multigeneration animal experiment Organic Eprints
Brandt, Kirsten; Bügel, Susanne Højbjerg; Ritskes-Hoitinga, Merel; Frøsig, Lars.
The overall objective is to determine, if conventional and organic food products show differences in effects on animal physiology, of a type and magnitude, that indicates that such products will affect humans differently. The agricultural treatments used are: 1: An organic cultivation treatment, with low input of nutrients through animal manure and use of catch crops, and no pesticides. 2: A conventional cultivation system, with high input of nutrients through mineral fertiliser and intensive use of pesticides. 3: A combination of 1 and 2, with low input of nutrients, primarily animal manure, and intensive use of pesticides. The treatments will be established on two sites. Wheat, potatoes and oilseed rape will be produced in Foulum, and carrots,...
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Specific methods.
Ano: 2003 URL: http://orgprints.org/1703/1/III_4.ppt
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Growth and differentiation: Life processes in crops Organic Eprints
Bloksma, Joke; Huber, Machteld.
This booklet discusses two basic life processes in nature:growth and differentiation.It uses the examples of apples,carrots and wheat to illustrate how growers can recognize these processes and can take practical measures to correct the balance between them in order to optimize the quality of their products.Thinking in growth and differentiation has proved valuable in the support,offered to growers by the Louis Bolk Instituut. It also speculates about the possible significance of these processes for human health.
Tipo: Book Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Cereals; Pulses and oilseeds Root crops Fruit and berries.
Ano: 2002 URL: http://orgprints.org/4202/1/4202.pdf
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Schwefelgehalte in biologisch-dynamischem Weizen Organic Eprints
Hagel, I.; Schnug, E..
Während eine Untersuchung über den Schwefel-Status von Weizen aus der deutschen konventionellen Landwirtschaft existierte, fehlten diesbezüglich Bestandsaufnahmen aus der ökologischen Landwirtschaft. Die Untersuchung von 61 Weizenproben (vor allem Winterweizen, verschiedene Sorten) aus der biologisch-dynamischen Praxis (Ernte 1995) leistete einen ersten Beitrag hierzu. Die Untersuchung ergab, dass ► die Rohproteingehalte mit einem Mittelwert von 10,0% sehr niedrig lagen. 44,3% der Probengrundgesamtheit lag in den Klassen <10%. Nur 8,2% der Proben wiesen Gehalte über 11,5% Rohprotein auf. ► mit steigendem Stickstoff-Gehalt der Proben auch deren Schwefel-Gehalt zunahm. Der mittlere S-Gehalt betrug 0,127 %. Bezüglich der N:S-Verhältnisse ergaben sich...
Tipo: Journal paper Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Cereals; Pulses and oilseeds.
Ano: 1997 URL: http://orgprints.org/2123/1/2123%2Dhagel%2Di%2Det%2Dal%2D1998%2Dschwefel%2Dkonv%2Ddyn.pdf
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Mykotoxine im Getreide: Wie vermeiden? Organic Eprints
Wyss, Gabriela.
Tipo: Book Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Cereals; Pulses and oilseeds.
Ano: 2003 URL: http://orgprints.org/2697/1/wyss%2D2003%2Dmykotoxine%2Dim%2Dgetreide.pdf
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The influence of the farming system on harvest of apple trees orchard and chemical composition of apples Organic Eprints
Nominaitis, Skirmantas; Rutkoviene, Vida Marija; Viškelis, Pranas.
Research of apple productivity and quality was carried out in organic and intensive farming in northern and central Lithuania gardens. Standard analysis and several new methods were used to analyse apple productivity and quality. Apples grown in the same climate and soil conditions using organic farming technologies were characterised by better taste and transport features and better electrochemical parameters, but the yield is less and fruits have an inferior marketable look.
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Fruit and berries.
Ano: 2005 URL: http://orgprints.org/3834/1/3834.pdf
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Quality of plant products grown with manure fertilization Organic Eprints
The meeting discussed results of food quality obtained by different long-term trials in Switzerland (DOC trial), Germany (Darmstadt) and Sweden (K trial etc.). Based on the results, the parameters investigated with the samples have been evaluated and future research needs were identified as regards the topic of fertilization and food quality.
Tipo: Proceedings Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Nutrient turnover Cereals; Pulses and oilseeds Vegetables Composting and manuring.
Ano: 1996 URL: http://orgprints.org/604/1/vol9.pdf
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Effects of Cultivation Conditions for Apples on Growth Rates of Fruit Fly Larvae and Contents of Phenolics Organic Eprints
Brandt, Kirsten; Ejlersen, Astrid; Nørbæk, Rikke; Lindhard Petersen, Hanne.
Apples were grown with 3 different alleyway groundcover management strategies, providing a wide range of nutrient availabilities to the trees, spanning the ranges normally found in both conventional and organic orchards. These treatments had significant effects on both yields and incidence of fungal diseases. However, the differences in yields and disease incidence cancelled each other out, resulting in identical average yields of marketable fruit, as reported earlier (Lindhard Petersen & Bertelsen 2002). These results indicated that the composition of the fruit may also differ, and that this material is useful as a model for investigating how growth conditions influence the content of nutritionally relevant compounds, and thus may affect the...
Tipo: Conference paper, poster, etc. Palavras-chave: Fruit and berries Food security; Food quality and human health Crop health; Quality; Protection.
Ano: 2003 URL: http://orgprints.org/1588/1/Apples_and_fruit_flies.pdf
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Metoder til at opnå stabile antibakterielle plantebaserede produkter med reproducerbar antibakteriel effekt og indhold af aktivstoffer Organic Eprints
Jensen, Martin; Grevsen, Kai; Hansen, Flemming.
This summary describes briefly th echallenges of how to obtain a reproducible prepration from Herbs and berries for use in i.e. meat products.
Tipo: Report Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Post harvest management and techniques.
Ano: 2014 URL: http://orgprints.org/25748/7/25748.pdf
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Higher Antioxidant Activity, Total Flavonols, and Specific Quercetin Glucosides in Two Different Onion (Allium cepa L.) Varieties Grown under Organic Production: Results from a 6‑Year Field Study Organic Eprints
Ren, Feiyue; Reilly, Kim; Kerry, Joseph P; Gaffney, Michael; Hossain, Mohammad; Rai, Dilip K.
We carried out a 6-year study to assess the effect of conventional, organic, and mixed cultivation practices on bioactive compounds (flavonoids, anthocyanins) and antioxidant capacity in onion. Total flavonoids, total anthocyanins, individual flavonols, individual anthocyanins, and antioxidant activity were measured in two varieties (‘Hyskin’ and ‘Red Baron’) grown in a long-term split-plot factorial systems comparison trial. This is the first report of repeated measurements of bioactive content over an extensive time period in a single crop type within the same trial. Antioxidant activity (DPPH and FRAP), total flavonol content, and levels of Q 3,4′ D and Q 3 G were higher in both varieties under fully organic compared to fully conventional management....
Tipo: Journal paper Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection.
Ano: 2017
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Schwefelgehalte und Qualitätseigenschaften von Weizen aus biologisch-dynamischem und konventionellem Anbau Organic Eprints
Hagel, I.; Kieffer, R.; Schnug, E..
Für die Ergebnisse der vorliegenden Untersuchung wurden Winterweizenproben aus der biologisch-dynamische (23 Proben der Sorte Rektor, 8 Proben Bussard) und konventionellen Praxis (je 10 Proben der Sorten Rektor, Bussard und Astron) des Erntejahres 1996 untersucht. ► Der mittlere Rohproteingehalt der konventionellen Proben betrug 13,4%, was dem langjährigen Mittelwert entspricht. Die biologisch-dynamischen Proben deckten N-Gehalte zwischen 1,4 und 2,2% ab. Ihr mittlerer Rohproteingehalt betrug 9,8% und lag damit noch etwas niedriger als der Wert von 10,0% von Proben des Erntejahres 1995. ► Die biologisch-dynamischen Proben wiesen bedeutend niedrigere Schwefelgehalte (Mittelwert = 0,12%) als die konventionellen Proben auf (Mittelwert = 0,15%), was auf der...
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Cereals; Pulses and oilseeds.
Ano: 1998 URL: http://orgprints.org/2124/1/2124%2Dhagel%2Di%2Det%2Dal%2D1998%2Dschwefel%2Dkonv%2Ddyn%2Ddgq.pdf
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Efficacy Evaluation of Selected Biorational Combinations in the Management of Tomato Blight Organic Eprints
Kamoga, Gerald; Mwine, Julius; Ssekyewa, Charles.
This experiment was conducted in Katabi Sub-county in Wakiso District. The study evaluated efficacy of selected biorational combinations in the management of tomato blight. These biorationals were picked from the locally used plant materials used as natural pesticides and fungicides. They included Carica papaya, Phytolacca dodecandra, Jatropha curcas, Capsella Bursa-pastoris and. Tephrosia vogelli. The major objective was to evaluate efficacy of Carica papaya, Phytolacca dodecandra, Jatropha curcas, Capsella Bursa-pastoris and. Tephrosia vogelli.against tomato blight. This research was guided by three major objectives that is; to determine the biorational combinations that reduces tomato bright to levels below economic injury thresholds, to establish...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions Food security; Food quality and human health Crop health; Quality; Protection.
Ano: 2018 URL: http://orgprints.org/33070/9/5%20Kamoga%20Gerald%20Article.pdf
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Pestizidspuren im Biowein: Wie Riegel schieben und Ritzen stopfen? Organic Eprints
Wyss, Gabriela; Seiler, Kurt.
Im Jahr 2000 wurden Rückstände von Pestiziden in Schweizer Bioweinen nachgewiesen. Bio Suisse reagierte schnell auf den Schocker und startete eine gross angelegte Analysekampagne. Wie kommen Giftspuren in den Biowein? Und vor allem: Wie lassen sie sich vermeiden, welche Ritzen muss man stopfen? Das Amt für Lebensmittelkontrolle von vier Ostschweizer Kantonen und das FiBL legen einen neuen Untersuchungsbericht vor.
Tipo: Newspaper or magazine article Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Viticulture.
Ano: 2008 URL: http://orgprints.org/28282/1/Artikel_Wyss_12_13.pdf
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Samenfeste Sorten oder Hybriden - Untersuchungen an Speisemöhren aus einem Anbauvergleich an zwei Standorten des Ökologischen Landbaus Organic Eprints
Fleck, M.; Sikora, F.; Rohmund, C.; Gränzdörffer, M.; von Fragstein, P.; Heß, J..
An zwei Standorten des Ökologischen Landbaus (Neu-Eichenberg, Nordhessen: mittlerer bis schwerer Boden; Queck, Osthessen: leichter Boden) wurden Feldversuche mit Möhren durchgeführt, um sechs samenfeste Sorten und sechs Hybriden auf ihre Anbautauglichkeit zu prüfen. Außer der Roh- und Handelswarenerträge wurden die Einheitlichkeit des Erntegutes (cv%) bestimmt und die Gehalte an Mineralstoffen (K, Ca, P, Mg) und Zuckern (D-Glucose, D-Fructose, Saccharose) analysiert. Auch sogenannte Bildschaffende Methoden (Kupferchloridkristallisation, Steigbild, Rundfilterchromatogramm) kamen zur Anwendung. Die untersuchten Hybriden erzielten Mehrerträge von 25 bis 29% und in den meisten Fällen auch gleichmäßiger lange Rüben als die Samenfesten. Die...
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Breeding; Genetics and propagation Vegetables.
Ano: 2002 URL: http://orgprints.org/3856/1/Fleck_et_al._2002a.pdf
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Primeira ... 12 ... Última
 

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