Affiliation:
1. Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, Muang Surat Thani 84100, Thailand,
2. Department of Food and Nutritional Sciences, University College Cork, Cork, Ireland
3. Aquatic Resources Research Institute, Chulalongkorn University, Bangkok 10330, Thailand
Abstract
Post-mortem changes in farmed spotted Babylon snail stored in ice for 7 days were evaluated using nucleotide degradation products, K-value, total volatile base nitrogen (TVB-N), trimethylamine nitrogen (TMA-N), organic acid, free amino acids and biogenic amines. During a 7-day ice storage, K-value, TVB-N, TMA-N and organic acids contents increased with increasing storage time (p < 0.05). Changes in free amino acid, such as aspartic acid, serine, glutamic acid, glycine, arginine and proline were observed throughout the ice storage (p < 0.05), while total free amino acids were found to decrease significantly (p < 0.05). Biogenic amines found in snail muscle during ice storage were tyramine, putrescine, cadaverine, agmatine and histamine. Bacteria counts of snail muscle exceeded 7 log CFU/g, which was considered as the limit for acceptability after 7 days of iced storage. This result initiates the use of ice storage as a preliminary treatment for snails transported from farms.
Subject
Industrial and Manufacturing Engineering,General Chemical Engineering,Food Science
Cited by
3 articles.
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