Changes of fatty acid composition and content in Pseudosciaena crocea from net cage during the winter

doi:10.3969/j.issn.1001-909X.2014.02.011

Journal of Marine Sciences ›› 2014, Vol. 32 ›› Issue (2): 80-84.DOI: 10.3969/j.issn.1001-909X.2014.02.011

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Changes of fatty acid composition and content in Pseudosciaena crocea from net cage during the winter

ZHANG Chun-dan¹, HU Yu-zhen¹, MIAO Liang¹, LI Ming-yun^*1, HUANG Dai-ping²

1. Applied Marine Biotechnology Key Laboratory of the Ministry of Education, Ningbo University, Ningbo 315211, China;
2. Gangwan Aquacultural Seeding Co. Ltd. of Xiangshan County, Ningbo 315702, China

Received:2014-03-05 Revised:2014-04-09 Online:2014-06-15 Published:2022-11-25

Abstract

Abstract: Investigations were carried out to explore the changes of muscle and liver fatty acid composition and content in Pseudosciaena crocea during the winter. Gas chromatography-mass spectrometry (GC-MS) was used to detect fatty acid composition and content of its muscle and liver under the condition of sea water temperature at 20 ℃, 16 ℃, 12 ℃, 10 ℃ and 8 ℃ respectively. The results show that the content of unsaturated fatty acid increases with the reduction of water temperature, especially the content of EPA[C20:5(n-3)], from 5.71% at 20 ℃ to 8.06% at 8 ℃ in muscle and from 6.76% at 20 ℃ to 8.44% at 8 ℃ in liver. Therefore, with no feeding condition during the winter, saturated fatty acid decreases and unsaturated fatty acid increases through transformation and metabolism of fatty acid by organism itself to keep cell membranes fluidity and against the cold.

Key words: Pseudosciaena crocea, winter, fatty acid

CLC Number:

ZHANG Chun-dan, HU Yu-zhen, MIAO Liang, LI Ming-yun, HUANG Dai-ping. Changes of fatty acid composition and content in Pseudosciaena crocea from net cage during the winter[J]. Journal of Marine Sciences, 2014, 32(2): 80-84.

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Changes of fatty acid composition and content in Pseudosciaena crocea from net cage during the winter

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