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| Registros recuperados: 96 | |
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| Ravn, Dr. Helle Weber; Kristensen, Charlotte V.; Christensen, Trine F.; Diedrichsen, Brigitte; Brandt, Kirsten. |
| A broad screening programme, covering the most general phytochemical groups of compounds, was developed on the basis of Thin Layer Chromatography (TLC). A total of 46 TLC systems, comprising 26 derivatization reagents, 3 stationary phases, and 4 mobile phases, were included. The TLC systems were classified according to the groups of phytochemical compounds detected: Alcohols and phenolic compounds; Carbohydrates; N-containing compounds; Organic acids and lipids; P-containing compounds; S-containing compounds, and Terpenoids. Furthermore, one group of TLC systems detected compounds from several of the mentioned groups. The screening programme was applied in the screening of potatoes (S. tuberosum L.), peas (P. sativum L.), kale (B. oleracea L.), carrots... |
| Tipo: Report |
Palavras-chave: Food security; Food quality and human health Specific methods. |
| Ano: 2002 |
URL: http://orgprints.org/1490/1/Screening_report.pdf |
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| Brandt, Kirsten. |
| The general ecological mechanisms that determine the interactions between availability of re-sources (nutrients, water) and synthesis of defence related secondary metabolites in the plants will be presented. In short, under normal conditions in nature, where growth is limited by a relatively constant availability of nitrogen at a moderate level, plants strike a balance between defence and growth. They use a fraction of resources such as carbohydrate, N and S to reach a genetically determined normal level of defence mechanisms, which will prevent or quickly overcome most types of infections. If the local availability of nitrogen happens to increase (e.g. from decomposition of animal faeces), the growth rate increases, and the balance shifts. The... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Farm nutrient management. |
| Ano: 2005 |
URL: http://orgprints.org/6194/1/6194.pdf |
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| Wyss, Gabriela; Brandt, Kirsten. |
| Within the 5th EU-framework project “Recommendations for improved procedures for securing consumer oriented food safety and quality of certified organic foods from plough to plate“(QLRT-2002-02245; “Organic HACCP”), a systematic analysis was carried out among selected certified organic food production chains, such as eggs and milk but also wheat bread,cabbage, tomatoes, apples and wine, to investigate current procedures of production management and quality assurance. For each of seven quality and safety criteria, such as microbial toxins and abiotic contaminants, potential pathogens, natural plant toxicants, freshness and taste, nutrient content and food additives, fraud as well as social and ethical aspects the information was analysed to identify... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2005 |
URL: http://orgprints.org/4999/1/Wyss-2005-SAFO-HACCP.pdf |
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| Brandt, Kirsten; Lück, Lorna; Schmidt, Christoph; Seal, Chris; Leifert, Carlo. |
| The greatly increased market share of organic food, has prompted increasing interest in investigating whether there are actual differences in the effects of organic and conventional food on health. Previous studies have focussed on composition analyses and have therefore not been able to provide definitive proof for differences between these two food production systems in terms of long-term impact on human health. Also the designs of some of these studies were inadequate to provide proof for definite composition differences. There are virtually no human dietary intervention and cohort studies, which can provide definite proof for potential health impacts. When taking into account the present knowledge in nutrition, toxicology, physiology and ecological... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2006 |
URL: http://orgprints.org/9125/1/Brandt_Lednice_2006.pdf |
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| 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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| Registros recuperados: 96 | |
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