广西北海不同海域方格星虫(Sipunculus nudus)干体氨基酸组成及营养评价  

Composition and nutritional evaluation of amino acids of peanut-worm Sipunculus nudus dry body from five sea areas of Beihai,Guangxi

作　　者：刘旭佳[1] 彭银辉[1] 黄国强[1] 

机构地区：[1]广西海洋研究所广西海洋生物技术重点实验室,广西北海536000

出　　处：《生态学杂志》2016年第3期741-746,共6页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(31160532);广西自然科学基金项目(2015GXNSFBA139081);广西科技攻关项目(14121006-2-1;14121006-2-12);广西科研业务费(15YJ22HYS16)资助

摘　　要：为了研究广西北海特有种方格星虫的经济价值,测定了成虫干体的氨基酸含量,并根据FAO/WHO的氨基酸评分标准模式进行氨基酸营养价值评价。于2013年2、5、8和11月,分别在北海的山口、北暮盐场、营盘、大冠沙和竹林5个海域采集方格星虫,进行了氨基酸含量和组成分析。结果表明:北暮盐场方格星虫干体氨基酸平均含量最高,达到(68.02±0.50)%;5个海域方格星虫干体氨基酸含量、必需氨基酸和非必需氨基酸含量随着季节变化表现出先上升后下降的趋势;共检出16种氨基酸,以谷氨酸含量最高,占方格星虫干体质量的(17.34±0.61)%;方格星虫必需氨基酸占总氨基酸含量(EAA/TAA)和必需氨基酸与非必需氨基酸的比值(EAA/NEAA)均接近于FAO/WHO的理想模式。本研究为开发具有食用价值和药用价值的食品以及方格星虫的高值化利用提供理论依据和技术支撑。Sipunculus nudus is a special species distributed in the Beihai Gulf,and it is also a kind of precious sea food. In order to exploit its economic value,the content of amino acids of S. nudus was measured. Nutritional values of amino acids were evaluated according to amino acids grade standard mode of FAO / WHO. The investigation was conducted in February,May,August and November 2013 in five sea areas including Shankou,Beimu,Yingpan,Daguansha and Zhulin. Then the amino acids content and composition were analyzed. The result showed that the average content of amino acids of S. nudus in Beimu was highest,being 68.02% ±0.50%. The contents of amino acids,essential amino acids and non-essential amino acids presented a trend of increase first and decrease later over seasons in the five sea areas. 16 kinds of amino acids were detected in S. nudus,and the content of glutamic acid was highest,which could reach 17.34% ±0.61%. The ratio of essential amino acids to total amino acids and the ratio of essential amino acids to non-essential amino acids approached the FAO / WHO standard. Our results provided theoretical basis and technical support for the development of S. nudus with high edible and medicinal values.

关 键 词：北海 方格星虫 氨基酸 营养评价 

分 类 号：S917.4[农业科学—水产科学]