| Roasting and packaging in nitrogen atmosphere protect almond var. Guara against lipid oxidation. | |
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MedLine Citation:
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PMID: 22049155 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The effect of packaging in nitrogen (N(2)) atmosphere or in air on the quality of peeled and roasted almond var. Guara during storage for 20 weeks at 20 °C ± 1 °C and 65-70% relative humidity (RH) was studied. No changes in the sugar, fat, protein or fiber contents were observed during the storage period nor in color. Only the lipid fraction showed significant changes with the kind of packaging atmosphere. The composition of fatty acids remained unchanged during the 5 month storage in all the samples. Packaging in N(2) atmosphere was seen to have a protective effect against the accumulation of conjugated dienes (CD) in peeled almonds, while in roasted almonds, the protective effect was lower and even nil by the end of storage. The contrary effect was observed for the ultraviolet (UV; K(270)) index which increased more slowly in the roasted samples packaged in N(2), while in peeled samples it reached the same levels at the end of storage regardless of the packaging atmosphere. No effect of the packaging atmosphere was observed on the evolution of the peroxide value in the tested samples (peeled or roasted almonds). None of these changes in the lipid fraction was reflected in the final sensory quality of the samples and the taster panel found no changes in the sensory quality in any case. |
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Authors:
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P Sanchez-Bel; I Egea; M T Pretel; F B Flores; F Romojaro; M C Martínez-Madrid |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-11-2 |
Journal Detail:
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Title: Food science and technology international = Ciencia y tecnologia de los alimentos internacional Volume: - ISSN: 1082-0132 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-3 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9889534 Medline TA: Food Sci Technol Int Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Biology of the Stress and Plant Pathology, CEBAS-CSIC. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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