风干武昌鱼的营养及挥发性成分

doi:10.7506/spkx1002-6630-201518014

食品科学

风干武昌鱼的营养及挥发性成分

刘静泊1，陈季旺1,2,*，夏文水1,3，王琦1,2，熊幼翎1,2

1.武汉轻工大学食品科学与工程学院，湖北武汉 430023；2.农产品加工湖北省协同创新中心，湖北武汉 430023；
3.江南大学食品学院，江苏无锡 214122

出版日期:2015-09-25 发布日期:2015-09-11
通讯作者: 陈季旺
基金资助:
国家自然科学基金面上项目（31371823）；国家大宗淡水鱼产业技术体系建设专项（CARS-46）

Nutritional Compositions and Volatile Compounds in Air-Dried Fermented Megalobrama amblycephala

LIU Jingbo1, CHEN Jiwang1,2,*, XIA Wenshui1,3, WANG Qi1,2, Youling L. Xiong1,2

1. College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China;
2. Hubei Collaborative Innovation Center for Processing of Agricultural Products, Wuhan 430023, China;
3. School of Food Science and Technology, Jiangnan University, Wuxi 214122, China

Online:2015-09-25 Published:2015-09-11
Contact: CHEN Ji wang

摘要/Abstract

摘要：

为研究风干武昌鱼的营养价值和特征风味，分析其灰分、脂肪、蛋白质、多肽含量、游离氨基酸和游离脂肪酸组成及挥发性成分。结果显示，风干武昌鱼中蛋白质和多肽含量高达32.72%、4.26%，脂肪和灰分含量分别为9.40%、9.38%。游离氨基酸含量为0.12%，包括人体必需的8 种氨基酸，且赖氨酸、蛋氨酸含量分别为总游离氨基酸的3.31%和1.26%；呈味氨基酸（天冬氨酸、谷氨酸、甘氨酸、丙氨酸、丝氨酸、脯氨酸）含量为总游离氨基酸的85.64%，鲜味氨基酸（天冬氨酸、谷氨酸、甘氨酸、丙氨酸）含量高达51.07%。游离脂肪酸中不饱和脂肪酸含量为68.80%，以C18∶1含量最高；多不饱和脂肪酸含量为21.98%，其中C20∶5和C22∶6含量分别为0.40%、0.89%。此外，从风干武昌鱼中检测到奇数碳脂肪酸，例如十五碳脂肪酸和十七碳脂肪酸。挥发性成分中醇类、醛类物质相对含量分别达16.65%、10.91%。说明风干武昌鱼营养丰富，呈味氨基酸和不饱和脂肪酸及挥发性成分含量较高，有利于风干武昌鱼特征风味的形成。

关键词: 风干武昌鱼, 营养价值, 特征风味, 游离氨基酸, 游离脂肪酸, 挥发性成分

Abstract:

The nutritional components including ash, fat, protein, oligopeptide, free amino acid composition, free fatty
acid composition and the volatile compounds were investigated to evaluate the nutritional value and characteristic flavor
of air-dried fermented blunt snout bream (Megalobrama amblycephala). The results showed that the contents of protein,
oligopeptide, fat, ash, and free amino acids were 32.72%, 4.26%, 9.40%, 9.38%, and 0.12% in air-dried fermented M.
amblycephala, respectively. The fermented fish contained all the essential amino acids, and the contents of lysine and
methionine accounted for 3.31% and 1.26% of the total free amino acids, respectively. Moreover, flavor amino acids
(aspartic acid, glutamic acid, glycine, alanine, serine and proline) and umami amino acids (aspartic acid, glutamic acid,
glycine and alanine) constituted 85.64% and 51.07% of the total free amino acids, respectively. Unsaturated fatty acids
(USFA) accounted for 68.80% of the total free fatty acids with C18:1 being the most abundant USFA. The total content of
polyunsaturated fatty acids was 21.98%, including C20:5 (eicosapentaenoic acid, EPA) and C22:6 (docosahexaenoic acid, DHA)
accounting for 0.40% and 0.89%, respectively. In addition, odd-carbon fatty acids (pentadecanoic acid and heptadecanoic
acid) were also detected in air-dried fermented M. amblycephala. The fermented fish was rich in volatile compounds,
and the contents of aldehydes and alcohols were 16.65% and 10.91%, respectively. These results indicated that air-dried
fermented M. amblycephala had excellent nutritional composition including high contents of flavor amino acids, unsaturated
fatty acids and volatile compounds, which are all conducive to the formation of its characteristic flavor.

Key words: air-dried fermented Megalobrama amblycephala, nutritional value, characteristic flavor, free amino acid, free fatty acid, volatile compound

中图分类号:

TS254.4

刘静泊，陈季旺，夏文水，王琦，熊幼翎. 风干武昌鱼的营养及挥发性成分[J]. 食品科学, doi: 10.7506/spkx1002-6630-201518014.

LIU Jingbo1, CHEN Jiwang1,2,*, XIA Wenshui1,3, WANG Qi1,2, Youling L. Xiong1,2. Nutritional Compositions and Volatile Compounds in Air-Dried Fermented Megalobrama amblycephala[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201518014.

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风干武昌鱼的营养及挥发性成分

Nutritional Compositions and Volatile Compounds in Air-Dried Fermented Megalobrama amblycephala

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