托氏?螺营养成分分析及评价研究

doi:10.16378/j.cnki.1003-1111.20297

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Abstract Snail Umbonium thomasi, a common small snail in northern China, has high economic value. However, its nutritional composition is unclear currently. The nutrients, amino acids and fatty acids of the snail with body weight of 1.3—1.6 g were investigated and analyzed in order to evaluate and analyze its nutritional components. The results showed that there were the moisture of 79.48%, crude protein of 15.53%, crude fat of 1.39% and crude ash of 3.18% in fresh muscle of U. thomasi. A total of 17 kinds of amino acids were found in this experiment. Among 17 kinds of amino acids, glutamic acid content was the highest, accounting for 20.43 mg/g, followed by aspartate, arginine and leucine, accounting for 12.56 mg/g, 11.39 mg/g and 8.98 mg/g, respectively. The content of histidine was the lowest among the detected 17 kinds of amino acid. The essential amino acids and the flavor amino acids accounted for 40.80% and 34.29% of total amino acids respectively, the essential amino acids index (EAAI) was 46.80. As for fatty acids, 18 kinds of fatty acids were detected, 8 kinds of saturated fatty acids (SFA), 3 kinds of monounsaturated fatty acid (MUFA) and 7 kinds of polyunsaturated fatty acids (PUFA), accounting for 35.91%, 20.64% and 22.88%, respectively. The total content of DHA and EPA was 16.13%. Therefore, the snail was a kind of delicious food source with abundant nutrition and high value.

Key words： Umbonium thomasi; nutrient analysis evaluation

Received: 12 January 2021

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	Articles by authors
	HU Qingbiao
	LI Xiaodong
	LI Yingdong
	LIU Xu
	SUN Na

Cite this article:

HU Qingbiao,LI Xiaodong,LI Yingdong, et al. Analysis and Evaluation of Nutritive Composition in Muscle of Snail Umbonium thomasi[J]. Fisheries Science, 2022, 41(6): 1057-1063.

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https://www.shchkx.com/EN/10.16378/j.cnki.1003-1111.20297 OR https://www.shchkx.com/EN/Y2022/V41/I6/1057

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