Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 61, Issue 1, Pages 210-218Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf303895y
Keywords
Poyang Lake; wild freshwater fish; plankton; lipids; stereospecific analysis
Funding
- Research Program of State Key Laboratory of Food Science and Technology, Nanchang University [SKLF-MB-201003]
- PhD Subject Fund from Education Department [20113601120004]
- Natural Science Fund from Science and Technology Department of Jiangxi Province [20114BAB214016]
- Science and Technology Research Program of Jiangxi Province Office of Education [2010EHB03100]
- National Natural Science Fund [31060214]
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The descriptors linking dietary and fish fatty acids (FM) compositions in four 1-year-old wild freshwater fish, Mylopharyngodon piceus, Ctenopharyngodon idella, Hypophthalmichthys molitrix, and Hypophthalmichthys nobilis, from Poyang Lake were studied. M. piceus mainly feeding on crustaceans had the highest relation of polyunsaturated fatty acids (PUFAs; r = 0.812) and odd-branched chain fatty acids (OBCFAs; r = 0.742) with spiral shells. Correlations between C. idella (herbivore) and aquatic plants (PUFAs, r = 0.995; OBCFAs, r = 0.783) were higher than other diet sources. The strongest correlation for PUFAs (r = 0.972) between H. molitrix (filter feeder with phytoplankton-feeding preference) and phytoplanktons was observed, followed by zooplanktons, whereas H. nobilis (filter feeder with zooplankton-feeding preference) showed the highest association with zooplanktons for PUFAs (r = 0.895). The high retainment of dietary FM in fish body highlighted the potential for tailoring cultured fish FM. The preferential distributions of n-3 long-chain PUFAs in sn-2-triacylglycerols and sn-2-phospholipids made fish an alternative for inland people supplementing n-3 PUFAs.
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