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谭德清, 王剑伟, 但胜国, 李文静. 厚颌鲂含肉率及生化成分的分析[J]. 水生生物学报, 2004, 28(1): 17-22.
引用本文: 谭德清, 王剑伟, 但胜国, 李文静. 厚颌鲂含肉率及生化成分的分析[J]. 水生生物学报, 2004, 28(1): 17-22.
TAN De-Qing, WANG Jian-Wei, DAN Sheng-Guo, LI Wen-Jing. THE RATIO OF MUSCLE TO BODY AND ANALYSIS OF THE BIOCHEMICAL COMPOSITION OF MUSCLE IN MEGALOBRAMA PELLEGRINI[J]. ACTA HYDROBIOLOGICA SINICA, 2004, 28(1): 17-22.
Citation: TAN De-Qing, WANG Jian-Wei, DAN Sheng-Guo, LI Wen-Jing. THE RATIO OF MUSCLE TO BODY AND ANALYSIS OF THE BIOCHEMICAL COMPOSITION OF MUSCLE IN MEGALOBRAMA PELLEGRINI[J]. ACTA HYDROBIOLOGICA SINICA, 2004, 28(1): 17-22.

厚颌鲂含肉率及生化成分的分析

THE RATIO OF MUSCLE TO BODY AND ANALYSIS OF THE BIOCHEMICAL COMPOSITION OF MUSCLE IN MEGALOBRAMA PELLEGRINI

  • 摘要: 研究了长江上游特有鱼类厚颌鲂的含肉率及其肌肉生化成分和能值.结果表明:厚颌鲂的含肉率为72.72%;其肌肉生化成分(鲜重百分比):水分含量为79.2%、蛋白质1.82%、脂肪2.10%、灰分1.08%、无氮浸出物0.73%、比能值4.93KJ/g及E/P29.33KJ/g.肌肉生化成分含量与体长变化无明显关系.经单因素方差分析5-月份样品与10月份样品在脂肪和无氮浸出物含量上有显著差异(P<0.05).肌肉中含有17种氨基酸,总量为9.54%(干重百分比);9种人体必需氨基酸总量是33.07%,占氨基酸总量比例为47.55%;必需氨基酸指数(EAAI)是1.75.缬氨酸和异亮氨酸为限制性氨基酸;四种鲜味氨基酸含量为5.85%(鲜重百分比).

     

    Abstract: In this paper, measurements were made on the ratio of f lesh in whole body and analysis of the biochemical composition, energy and amino acids of muscle inM. pellegrini which is endemic fish living in the up rea ch Changjiang River. Samples of 45 individuals were collected from Longxi branch in Sichuan Luzhou in Mainland China during 2001—2002. Longxi branch is a first step tributary of the up reach Changjiang River. It was shown that the ratio of flesh in whole body was 70.74%,the ratio of gill in whole body was only 1.52% ; Analysis of the biochemical composition were the moisture of muscle 80.97%, p rotein 15.92%, fat 1.11%,ash 1.01%, non-nitrogen extract 0.99%, the conten t of energy was 4.37KJ/g, E/P was 27.45KJ/g. There was no apparent relations hip between changes of body length and the content of the biochemical composition, energy and amino acids in muscle. There was significant different in the contents of fat and non-nitrogen extract from the muscle samples at May-June and October. Comparativing the content of the biochemical compositions and calorific values in the three kinds fish ofM. pellegrini. Megalobrama amblycephala an dParabramis pekinesis,in the same season, same way getting material, it not show the difference about the contains of the biochemical composition, energy a nd amino acids of muscle in three kinds of fishes. The composition of amino acids of muscle was found those 17 common amino acids and 9 essential amino acids for human needs (no analysis was made for tryptophane ). In dry sample the total content of amino acids was 69.54%; the content of es sential amino acids was 33.07%; the percentages of essential amino acids in total amino acids were 47.55%; essential amino acids to no-essential amino acids( E/NE) was 0.91; essential amino acids gram to total nitrogen gram (E/TN) was 2.57; except histidine, tyrosine, threonine and cystine, coefficient variation of content of amino acids were lower than 10%, it was apparent that the content of the different amino acids was stable. Proceed the amino acids grade point to the fish muscle, that provides scientific basis for evaluate its protein quantity with guide the protein using of resource. According to nutrition evaluation, in the amino acids score (AAS) and chemical score(CS),the first limited amino acids was valine and second limited amino ac id was ileucine; the essential amino acids index(EAAI) was 61.75. In wet sample the content of 4 kinds delicious amino acids was 5.85%.

     

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