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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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| Christensen, Trine F.; Diedrichsen, Brigitte; Adsersen, Anne; Andersen, Jan Buch; Ravn, Helle Weber. |
| A screening programme is developed to investigate phytochemical differences in plants xposed to stress compared with non-exposed plants. The screening programme, in its resent form or in a more simplified form, can be utilized in several different areas as a preliminary broad screening. The screening programme covers the most general groups of compounds found in plants. The following groups of phytochemical compounds are included in the programme: Unspecific compounds, organic acids, lipids, phenolic compounds, carbohydrates, terpenoids and N-, S- and P-containing compounds. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Technology assessment. |
| Ano: 2002 |
URL: http://orgprints.org/1512/1/Screeningprogramme_Poster_n.pdf |
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| Ravn, Helle Weber; Christensen, Trine F.; Pedersen, Hanne Lindhard; Brandt, Kirsten; Diedrichsen, Birgitte; Kristensen, Charlotte V.; Jensen, Anders K.; Husted, Carina L.; Andersen, Jan Buch. |
| In the recent years there has been an increasing focus on the quality and health value of organic plant products compared with conventional products. The use of pesticides and concentrated fertilisers in conventional agriculture implies a risk of effects on plant composition, which may affect health of the consumer (Brandt & Mølgaard, 2001). To determine if organically grown plant food could provide more or less benefits to health than conventional food, a first step is to investigate the differences in the composition and relative concentration of natural compounds in the plant products. In this project apples were grown with two levels of nitrogen availability and with or without the use of pesticides. The apples were screened for changes in the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2004 |
URL: http://orgprints.org/4883/1/4883.pdf |
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