海洋科学Issue(3)：33-41,9.DOI:10.11759/hykx20140320003
裂片石莼营养价值的评价及其多糖制备的初步研究
Nutritional evaluation of Ulva fasciata and polysaccharide extraction from U. fasciata
摘要
Abstract
Seaweeds, as an excellent raw material for renewable energy, feed, nutritional health food, cosmetics and pharmaceutical products, possess numerous advantages such as fast growth, high yield, rich in nutrition, and no acquisition of arable land. Ulva fasciata is very rich in Southern China, butfew studies onits nutritional value and polysaccharide extractionhave been reported in China. Taxonomic identification and nutritional value on theU. fas-ciata collected from Fujian Province, and a new approach toimprove the polysaccharide extraction by microwave heating were carried out in this study. The results showed that (i) U. fasciata consists of 34.8% the total sugars, 27.6%protein, 25.2%amino acids and 27.6%fatty acids;(ii) the content of essential amino acids and score of ratio coefficient of amino acids (SRC) in U. fasciata are 10.1%and 79.77 respectively;(iii)it was proved that the heavy metals contents in U. fasciata meet the requirement of the national standard of seaweed products. Meanwhile, compared with the traditional heating extraction process, the polysaccharide yield of U. fasciata was enhanced by 21.35%, and the energy consumption was lowered by 58.51% through the orthogonal experiment optimization of polysaccharide extractionusing microwave heating. All the above results revealed that U.fasciata as a macroalga with high nutritional value, is expected to become an excellent prospective raw material for food, nutraceutical, feed and other bioproducts.关键词
大型海藻/裂片石莼(Ulva fasciata)/分子鉴定/营养组分/正交实验优化Key words
Large algae/Ulva fasciata/Molecular identification/Nutritional components/orthogonal experiment optimization分类
生物科学引用本文复制引用
叶方方,吴后波,向文洲,吴华莲,戴世鲲,贾其坤,陈灿坤..裂片石莼营养价值的评价及其多糖制备的初步研究[J].海洋科学,2015,(3):33-41,9.基金项目
海洋公益项目(No.201305018-3)；国家科技计划项目(No.2013 BAD10B04-1)；广东海洋渔业推广专项(A201101I04) （No.201305018-3）
