| Effect of Freezing Technology and Storage Conditions on Folate Content in Selected Vegetables. | |
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MedLine Citation:
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PMID: 22983767 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Folates (B vitamins) are essential for the proper function of many bodily processes. Although a rich natural source are vegetables, the literature lacks data on the effect of the pre-treatment and freezing technologies used in vegetable processing and frozen storage time on the folate content in these materials. Moreover, since folates are very unstable nutrients, the amount available in processed and stored foods can be significantly lower than in raw products. In tested vegetables (green beans, yellow beans, peas, cauliflower, broccoli and spinach), one folate form was identified, 5-methyltetrahydrofolate (5-CH(3)-H(4)folate). It was observed that pre-treatment and freezing technology significantly (p < 0.05) decreased 5-CH(3)-H(4)folate content only in vegetables with the largest degree of fragmentation (cut and briquetted spinach) and the smallest size (peas). In all analyzed samples, the 5-CH(3)-H(4)folate content decreased with the time of frozen storage. In frozen cauliflower, the 5-CH(3)-H(4)folate loss exceeded 95 % compared to the fresh product just after the third month of frozen storage. Meanwhile, in green and yellow beans, significant 5-CH(3)-H(4)folate losses (at the level of 75 % and 95 %, respectively) were observed no earlier than after the 9th month of frozen storage. |
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Authors:
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Marta Czarnowska; Elzbieta Gujska |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-9-15 |
Journal Detail:
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Title: Plant foods for human nutrition (Dordrecht, Netherlands) Volume: - ISSN: 1573-9104 ISO Abbreviation: Plant Foods Hum Nutr Publication Date: 2012 Sep |
Date Detail:
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Created Date: 2012-9-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8803554 Medline TA: Plant Foods Hum Nutr Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Faculty of Food Sciences, University of Warmia and Mazury in Olsztyn, 10-957, Olsztyn, Poland, marta.czarnowska@uwm.edu.pl. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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