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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Effect of pre-freezing treatments on the quality of Alaska pollock fillets subjected to freezing/thawing  [2016]

Jinhwan; Lee; Quentin; Fong; et al.

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Alaska pollock, immediately frozen at sea in the Bering Sea, were thawed in a cold room until the fish core temperature reached −1.5°C. Whole fish (WF) and headed and gutted fish (HF), stored under refrigeration for 0, 4, 8 and 12h, were subsequently filleted and frozen at −18°C. Fillets were subjected to freezing/thawing (F/T) cycles (0, 3, 6, and 12 cycles) before measuring biochemical and textural properties. Trimethylamine-N-oxide demethylase (TMAOase), formaldehyde (FA) and dimethylamine (DMA) contents in the HF group significantly increased as F/T cycles repeated. FA and DMA content at 12-F/T decreased when refrigeration time before filleting increased. Decreases in surface hydrophobicity at 12-F/T led to textural toughening of frozen fillets due to protein aggregation by FA. F/T, which mimics long-term commercial frozen storage, possibly accelerated the release and accumulation of TMAOase through due to ice crystal formation and its subsequent growth. As a result, rapid quality deterioration was observed as F/T was repeated.
From the journal
Food bioscience
ISSN : 2212-4292

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2017
Volume:
16 (1113
Extent:
50-55
Publisher:
Elsevier Ltd
All titles:
"Effect of pre-freezing treatments on the quality of Alaska pollock fillets subjected to freezing/thawing"@eng
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2017
Volume:
16 (1113
Extent:
50-55
Publisher:
Elsevier Ltd
All titles:
"Effect of pre-freezing treatments on the quality of Alaska pollock fillets subjected to freezing/thawing"@eng