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Proximate, amino acid and lipid compositions in Sinonovacula constricta (Lamarck) reared at different salinities
Author(s) -
Ran Zhaoshou,
Li Shuang,
Zhang Runtao,
Xu Jilin,
Liao Kai,
Yu Xuejun,
Zhong Yingying,
Ye Mengwei,
Yu Shanshan,
Ran Yun,
Huang Wei,
Yan Xiaojun
Publication year - 2017
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.8311
Subject(s) - salinity , biology , zoology , seawater , food science , ecology
BACKGROUND Sinonovacula constricta is an economically and nutritionally important bivalve native to the estuaries and mudflats of China, Japan and Korea. In the present study, S. constricta , cultured either under experimental conditions or collected directly from natural coastal areas with different seawater salinities, was investigated for changes in proximates, amino acids and lipids. RESULTS When culture salinity was increased, levels of moisture, carbohydrate, crude protein and crude lipid were significantly decreased, whereas the level of ash was significantly increased. The level of Ala was increased by 1.5‐ to 2‐fold, whereas the contents of most lipids were significantly decreased, and the proportion of phosphatidylethanolamine was significantly increased. Notably, a high proportion of ceramide aminoethylphosphonates was detected in S. constricta reared at all salinities. The energy content appears to be higher in S. constricta reared at higher salinity. In experimental S. constricta , when the salinity was enhanced, the changes of compositions were very close to those reared at constant high salinity. CONCLUSION Sinonovacula constricta reared at higher salinities possesses a superior quality. A short period of exposure to a higher salinity for farmed S. constricta reared at a lower salinity before harvest would be useful with respect to improving its nutritive value. © 2017 Society of Chemical Industry