GUO Quan-you, SONG Wei, JIANG Chao-jun, JIANG Ke-ji, LI Xue-ying, WANG Lu-min. Comparison of nutritional quality and heavy metals of Pseudosciaena crocea in different farmed modes[J]. Science and Technology of Food Industry, 2016, (06): 341-345. DOI: 10.13386/j.issn1002-0306.2016.06.060
Citation: GUO Quan-you, SONG Wei, JIANG Chao-jun, JIANG Ke-ji, LI Xue-ying, WANG Lu-min. Comparison of nutritional quality and heavy metals of Pseudosciaena crocea in different farmed modes[J]. Science and Technology of Food Industry, 2016, (06): 341-345. DOI: 10.13386/j.issn1002-0306.2016.06.060

Comparison of nutritional quality and heavy metals of Pseudosciaena crocea in different farmed modes

  • Basic nutrient components,fatty acids,amino acids,textural & color properties and heavy mental of Pseudosciaena crocea which were cultured in the deep-water net cage and the raft net cage were analyzed and compared,it will provide the technology support for optimizing farmed styles and preservation & utilization of Pseudosciaena crocea. The results showed that there were no significant differences(p>0.05) in nutrition ingredients including protein,water,fat and ash in both farming modes,but there was a trend towards higher protein and lower fat in the deep-water net cage. The content of saturated fatty acids and mono-unsaturated fatty acids were lower,however,the content of poly-unsaturated fatty acids was higher than the raft net cage. Sixteen amino acids were found in Pseudosciaena crocea of two farmed styles. Glutamic acid was the highest,and cysteine was the lowest in sixteen amino acids. The value of essential amino acids/total amino acids were 41.93%and 41.59% in Pseudosciaena crocea which were cultured in the deep-water net cage and the raft net cage,which were met amino acid score and chemical score standard recommended by FAO/WHO. The deep-water net cage and the raft net cage of Pseudosciaena crocea flavor amino and total amino acid ratio were 40.61% and 40.85%,the difference was not significant(p>0.05). The heavy mental(Cu,Pb,Hg,As,Cd) was met national standards. The color of Pseudosciaena crocea in the raft net cage was yellower,but its hardness,cohesiveness,elasticity,gumminess,chewiness,resilience were lower than Pseudosciaena crocea in deep-water raft net cage,indicating the fish of deep-water tanks was more chewy reared and tasted better.
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