The nutritive composition analysis and evaluation of the by-products from freshwater mussels after pearl-fishing
The components of the freshwater mussel meat,mantle and mussel tears(humor)were determined,and nutritional qualities were synthetically evaluated.Results showed that the water contents of freshwater mussel meat,mantle and humor were 76.92%,82.44%,89.31%,respectively.The contents of crude protein were 51.07%,47.72%,43.84%.Contents of ash were 7.19%,15.01%,4.34%.Contents of crude fat were 7.45%,6.37%,4.57%.Contents of carbohydrate were 26.65%,22.94%,42.46%.The total amino acids of the freshwater mussel meal,mantle and humor,were 41.54%,37.61%,32.56% respectively,and the percentage of essential amino acids in total amino acids were 44.43%,42.75%,45.06%,respectively,which were close to the pattern of FAO/WHO.Minerals contents was rich such as Ca,Fe,Mg,especially the heavy metal in the mussel meal were all under the restriction of food safety.There were affluent contents of unsaturated oils,were 64.05%,70.39%,57.49%.As a conclusion,the freshwater mussel is precious and excellent source at every pore,which is low in price.
国家科技期刊平台
NSTL
万方数据
维普
