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江苏海区浒苔的营养与食品安全性分析与评价
胡传明1,2, 陆勤勤1, 杨立恩1, 周伟1,3, 许广平1, 邓银银1, 田翠翠1
1.江苏省海洋水产研究所 南通 226007;2.上海海洋大学食品学院 上海 201306;3.江苏省农业种质资源保护与利用平台 南京 210014
摘要:
通过对不同海区浒苔及其与紫菜之间的比较,分析评价了江苏海区定生浒苔和漂浮浒苔的营养特性。通过主成分分析可以将江苏浒苔与其他浒苔和紫菜明显区分开,说明江苏浒苔的营养具有区域一致性。江苏浒苔具有高蛋白、低膳食纤维的特点,浒苔中钙、镁含量高于紫菜,磷含量低于紫菜。江苏浒苔的必需氨基酸含量组成适合人体需要,是良好的蛋白质来源。第一限制氨基酸为甲硫氨酸,呈味氨基酸含量达到氨基酸总量的33.6%—42.9%,具有较好的呈味特性。江苏浒苔的铅、铬离子含量较高,食用风险不容忽视。
关键词:  浒苔  营养成分  安全性  评价
DOI:10.11693/hyhz20180200035
分类号:S816.7
基金项目:鳌山科技计划项目,2016ASKJ02-1号;国家重点研发计划项目,2016YFC1402104号;南通市科技计划项目,MS12015068号,MS22015025号,MS22015026号;江苏省水产三新工程重大项目,D2016-19号;国家藻类产业技术体系,CARS-50号。
THE NUTRITION AND FOOD SAFETY OF ULVA PROLIFERA OFF JIANGSU COAST
HU Chuan-Ming1,2, LU Qin-Qin1, YANG Li-En1, ZHOU Wei1,3, XU Guang-Ping1, DENG Yin-Yin1, TIAN Cui-Cui1
1.Jiangsu Marine Fisheries Research Institute, Nantong 226007, China;2.College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China;3.Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
Abstract:
The nutrition characteristics of settled and floating Ulva prolifera of Jiangsu coasts (hereinafter the Jiangsu U. prolifera) were analyzed and evaluated by the comparison of different species from different marine areas. Featured with regional homogeneity, the Jiangsu U. prolifera can be separated from other U. prolifera in the principal component analysis. The Jiangsu U. prolifera had high contents of protein, as well as low dietary fiber content. The Ca and Mg contents were higher, while phosphorus content was lower than those of Pyropia yezoensis. The Jiangsu U. prolifera could be a good protein source for having essential amino acids that suitable for intake and had a good flavor properties as its flavor amino acids content was in high level, 33.6%-42.9% of the total amino acids. However, the food safety risk may be high as in the Jiangsu U. prolifera the lead and chromium ions were high.
Key words:  Ulva prolifera  nutritional components  safety  evaluation
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