Effects of dietary on taste of different parts of female Juvenile Swimming Crab(Portunus trituberculatus)
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摘要: 本文选取配合饲料、杂鱼和混合饲料三种饲料,研究了不同饲料养殖对雌体三疣梭子蟹不同部位呈味核苷酸和游离氨基酸含量的影响,并用电子舌对其整体滋味轮廓进行分析,以期寻找合适的人工饲料来代替杂鱼。结果表明:混合饲料组和配合饲料组性腺中GMP（5’-鸟苷酸）、IMP（5’-肌苷酸）和AMP（5’-腺苷酸）含量均已达到杂鱼投喂水平,配合饲料组体肉中AMP含量和肝胰腺中IMP含量显著低于杂鱼投喂组（p<0.05）,混合饲料中仅肝胰腺的AMP含量低于杂鱼投喂组;混合饲料组性腺和体肉中游离氨基酸总含量均与杂鱼投喂组无显著差异（p>0.05）,且显著高于配合饲料组,混合饲料组肝胰腺中游离氨基酸总量显著高于其他两组,分别是配合饲料组和杂鱼投喂组的1.44倍和1.21倍。综合分析表明,混合饲料组更为接近杂鱼喂养水平。电子舌数据同样显示人工饲料养殖雌体三疣梭子蟹会使其各部位滋味轮廓与杂鱼喂养有较小差异。Abstract: In order to find the appropriate artificial diet to replace the trash fish,effects of replacement of trash fish with formulated diets and mixed diets on free amino acids,tasty nucleotides and taste profiles in different parts of female Portunus trituberculatus were investigated in this study. The result indicated that the content of GMP,IMP and AMP in the gonads of mixed diets treatment and formulated diets treatment were reached the level of trash fish treatment,nevertheless,the content of AMP in the abdominal meat and the content of IMP in the hepatopancreas of formulated diets treatment was significantly lower than that of trash fish treatment(p < 0.05). In the mixed diets treatment,which decreased was the content of AMP in the hepatopancreas. There was no significant difference between the total amount of free amino acids in the gonad and abdominal meat of mixed diets treatment and trash fish treatment(p > 0.05),and significantly higher than that of the formulated diets treatment,furthermore,the total free amino acid content of the mixed diets treatment of the hepatopancreas was 1.44 and 1.21 times that of formulated diets treatment and trash fish treatment.Comprehensive analysis showed that the mixed diets treatment was more close to the trash fish treatment. As well as,the electronic tongue data showed that artificial feed were different slightly from trash fish treatment.
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Keywords:
- Portunus trituberculatus /
- dietary /
- free amino acids /
- tasty nucleotides /
- taste
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