9943: Influence of Processing on Bioactive Substances Content and Antioxidant Properties of Apple Purée from Organic and Conventional Production in Poland
(2007) Influence of Processing on Bioactive Substances Content and Antioxidant Properties of Apple Purée from Organic and Conventional Production in Poland. Poster presented at 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, May 31-June 3 2005.
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Summary
The organic food market is developing dynamically in many European countries and therefore studies concerning the nutritive value of organically produced foods are becoming increasingly important. It was found appropriate to conduct studies on selected bioactive substances and antioxidant properties of apple preserves prepared from organic vs. conventional apples. Three apple cultivars, Lobo, Boskoop and Cortland, were grown in organic and conventional orchards in the Mazovia region in Poland. Dry matter, total phenols, vitamin C, total flavones and antioxidant activity were determined in fresh and pasteurized apple purée. The apple purée prepared from the organic apples contained significantly more total phenols, vitamin C, total flavones and showed a higher antioxidant capacity than the preserves prepared from conventional apples. Processing had a negative effect on both antioxidant capacity and bioactive substances. After pasteurization, the content of vitamin C, total phenols and flavones and antioxidant properties have decreased in the apple purée from both agricultural systems (organic and conventional).
| Document Language: | English |
|---|---|
| Keywords: | apple pomace, organic, conventional, polyphenols |
| Subject Areas: | Food systems > Food security, food quality and human health Food systems |
| Research affiliation: | International Conferences > QLIF Congress 2007 > 2 Food quality/ safety Poland |
| Total budget (Euro): | 0 |
| Orgprints ID Number: | 9943 |
| Contact: | Rembialkowska, ass.prof. Ewa |
| Deposited On: | 10 March 2007 |
| EPrint Type: | Conference poster |
| Published?: | Published |
| Type of presentation: | Poster |
| Peer Review Status: | Not peer-reviewed |
| Additional Publishing Information: | The final version of this paper is published in: Niggli, Urs; Leifert, Carlo; Alföldi, Thomas; Lück, Lorna and Willer, Helga, Eds. (2007) Improving Sustainability in Organic and Low Input Food Production Systems. Proceedings of the 3rd International Congress of the European Integrated Project Quality Low Input Food (QLIF). University of Hohenheim, Germany, March 20 – 23, 2007. Research Institute of Organic Agriculture FiBL, CH-Frick.http://orgprints.org/10417/ Printed copies may be ordered from the FiBL Shop at www.shop.fibl.org. |
| Related Links: | http://orgprints.org/10417/ |
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