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The Content of Selected Antioxidant Compounds in Bell Pepper Varieties from Organic and Conventional Cultivation Before and After Freezing Process

Hallmann, Dr. Ewelina and Rembiałkowska, Prof. Ewa (2008) The Content of Selected Antioxidant Compounds in Bell Pepper Varieties from Organic and Conventional Cultivation Before and After Freezing Process. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

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Summary

Sweet bell pepper is one of the best sources of ascorbic acid and a fair source of carotenoids in human diets. The levels of vitamin C are very variable and may be affected by maturity, genotype and processing. Vegetable freezing is one of the most efficient and adequate preservation methods. Organic fresh vegetables contained more bioactive compounds than conventional ones. Two bell pepper cultivars (Roberta and Ożarowska) have been selected for analysis. Vegetables were cultivated on organic and conventional farms in Poland. Ripe bell peppers have been collected in the same week of ripening and were chemically analyzed twice: fresh before freezing and after six month of storage in -20°C. Vitamin C content, carotenoids also the total flavonols content have been determined in fruits. Organically produced bell peppers contained significantly more vitamin C and lutein than conventionally grown fruits. Processing with aid of freezing considerably decreases the content of the bioactive compounds in red bell peppers.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:bell pepper, vitamin C, flavonols, carotenoids, organic cultivation, conventional cultivation
Subjects: Food systems > Food security, food quality and human health
Research affiliation: International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR > 4 QUALITY OF ORGANIC PRODUCTS
European Union > QualityLowInputFood > Subproject 2: Effects of production methods
Poland
International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR
Deposited By: Rembialkowska, ass.prof. Ewa
ID Code:12516
Deposited On:30 Sep 2008
Last Modified:12 Apr 2010 07:36
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:This paper is published in the conference proceedings:
Neuhoff, Daniel; Halberg, Niels; Alfldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A.; Hermansen, John; Vaarst, Mette; Lck, Lorna; Carporali, Fabio; Jensen, Henning Hgh; Migliorini, Paola and Willer, Helga, Eds. (2008) .Cultivating the Future Based on Science. Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Congress in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio, 18 . 20 June 2008 in Modena, Italy.. International Society of Organic Agriculture Research (ISOFAR), c/o IOL, DE-Bonn, Research Institute of Organic Agriculture FiBL, CH-Frick. http://orgprints.org/13672 and http://orgprints.org/13674

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