不同阶段中华绒螯蟹脂含量及脂肪酸组成分析

doi:10.7506/spkx1002-6630-201322035

食品科学 ›› 2013, Vol. 34 ›› Issue (22): 174-178.doi: 10.7506/spkx1002-6630-201322035

不同阶段中华绒螯蟹脂含量及脂肪酸组成分析

汤辰婧，松前成辉，付娜，刘源，陶宁萍，王锡昌

1.上海海洋大学食品学院，上海水产品加工及贮藏工程技术研究中心，上海 201306；
2.日本东北大学农学研究科水产资源化学研究室，仙台 981-0936

收稿日期:2013-06-28 修回日期:2013-10-29 出版日期:2013-11-25 发布日期:2013-12-05
通讯作者: 王锡昌 E-mail:xcwang@shou.edu.cn
基金资助:
国家自然科学基金;上海市中华绒螯蟹产业技术体系建设;上海市科委工程中心建设;上海市教委重点学科建设项目

Lipid Content and Fatty Acid Composition of Eriocheir sinensis at Different Stages of Growth

TANG Chen-jing，SONGQIAN Cheng-hui，FU Na，LIU Yuan，TAO Ning-ping，WANG Xi-chang

1. College of Food Science and Technology, Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation,Shanghai Ocean University, Shanghai 201306, China；
2. College of Agriculture Science, Biological Resource Sciences, Tohoku University, Sendai 981-0936, Japan

Received:2013-06-28 Revised:2013-10-29 Online:2013-11-25 Published:2013-12-05
Contact: WANG Xi-Chang E-mail:xcwang@shou.edu.cn

摘要/Abstract

摘要：

通过索氏抽提法及气相色谱(GC)法对10、11月和12月的中华绒螯蟹体肉及蟹黄、蟹膏的脂含量与脂肪酸组成进行研究。结果表明：中华绒螯蟹雌蟹体肉脂含量呈下降趋势而雄蟹体肉脂含量呈上升趋势；蟹黄、蟹膏脂含量均在10月份达到三节点最高，处于品质最佳时期，其后呈下降趋势。其中，体肉脂含量相对较低，且雌蟹高于雄蟹；蟹黄、蟹膏脂含量相对较高，且蟹膏高于蟹黄。实验共检测出16种脂肪酸，其中饱和脂肪酸(SFA)5种，单不饱和脂肪酸(MUFA)4种，多不饱和脂肪酸(PUFA)7种，以油酸(C18:1ω9)比例最高，不饱和脂肪酸的比例高于饱和脂肪酸。以FAO/WHO推荐的ω3/ω6比例为评价指标，11月份中华绒螯蟹的体肉及蟹黄和10月份的蟹膏对人体健康最有利。以油酸的含量作为营养品质的评价指标，三节点的蟹体肉、蟹黄及蟹膏均具有较好的品质。

关键词: 中华绒螯蟹, 体肉, 蟹黄, 蟹膏, 脂类, 脂肪酸, 气相色谱法

Abstract:

The lipid content and fatty acid composition of body meat, crab spawn and crab paste at different growth
stages (October, November and December) of E.sinensis were analyzed by Soxhlet extraction method and gas
chromatography (GC). The results showed that the lipid content showed a descending trend in the body meat of female
crab but an ascending trend in male crab. The highest lipid content was found in crab spawn and crab paste in October,
with the best quality at this growth stage, but descended as the growth proceeded; the lipid content was relatively lower
in body meat and indicated a higher level in female crab than in male one, while crab spawn and crab paste contained
a higher amount of lipids and the lipid content of crab paste was higher than that of crab spawn. Sixteen fatty acids
were detected in E.sinensis including 5 saturated fatty acids (SFA), 4 monounsaturated fatty acids (MUFA) and 7
polyunsaturated fatty acids (PUFA). Among these fatty acids, oleic acid (C18:1) was the most abundant and unsaturated
fatty acids had a higher proportion than saturated ones. According to the ω3/ω6 ratio recommended by the FAO/
WHO, the crab body meat and crab spawn in November and the crab paste in October were most beneficial to human
health. All the body meat, crab spawn and crab paste of E.sinensis at three growth stages had good nutritive quality as
indicated by the dominance of oleic acid.

Key words: Eriocheir sinensis, body meat, crab spawn, crab paste, lipid, fatty acid composition, gas chromatography (GC)

中图分类号:

TS201.4

汤辰婧，松前成辉，付娜，刘源，陶宁萍，王锡昌. 不同阶段中华绒螯蟹脂含量及脂肪酸组成分析[J]. 食品科学, 2013, 34(22): 174-178.

TANG Chen-jing，SONGQIAN Cheng-hui，FU Na，LIU Yuan，TAO Ning-ping，WANG Xi-chang. Lipid Content and Fatty Acid Composition of Eriocheir sinensis at Different Stages of Growth[J]. FOOD SCIENCE, 2013, 34(22): 174-178.

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不同阶段中华绒螯蟹脂含量及脂肪酸组成分析

Lipid Content and Fatty Acid Composition of Eriocheir sinensis at Different Stages of Growth

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