中国水产科学研究院机构知识库

Optimisation of extraction conditions and characteristics of skin gelatin from Nile tilapia (Oreochromis niloticus)

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文献类型：外文期刊

作者： Zeng, Shaokui ¹ ; Yan, Xiaoyan ¹ ; Cao, Wenhong ¹ ; Hong, Pengzhi ¹ ; Zhang, Chaohua ¹ ; Li, Laihao ² ;

作者机构： 1.Guangdong Ocean Univ, Key Lab Aquat Prod Adv Proc, Guangdong Higher Educ Inst, Coll Food Sci & Technol, Zhanjiang 524088, Peoples R China

2.Chinese Acad Fishery Sci, S China Sea Fishery Res Inst, Guangzhou 510300, Peoples R China

关键词： Amino acid;gels;response surface methodology;skin gelatin;tilapia

期刊名称：INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY （影响因子：3.713；五年影响因子：3.408 ）

ISSN： 0950-5423

年卷期： 2010 年 45 卷 9 期

页码：

收录情况： SCI

摘要： P>Response surface methodology was used to optimise gelatin extraction conditions from the skin of Nile tilapia (Oreochromis niloticus), and characteristics of the gelatin were determined. Concentration of NaOH (%, X-1), alkaline treatment time (h, X-2), concentration of HCl (parts per thousand, X-3) and acid treatment time (min, X-4) were chosen for independent variables. Dependent variable was yield of gelatin (%, Y). Optimal conditions were X-1 = 3.2 (%), X-2 = 2.3 (h), X-3 = 0.7 (parts per thousand) and X-4 = 84 (min), and predicted value of response optimal conditions was Y = 20.4%. Actual value was 19.3% by verification experiments under optimal conditions. Crude protein content of the tilapia skin gelatin was 88.5%. The content of imino acids including proline and hydroxyproline in the gelatin was 185 residues per 1000 total amino acid residues. Its gel strength was 260 g. The gelling and melting points were 18.0 and 22.4 degrees C, respectively.

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Optimisation of extraction conditions and characteristics of skin gelatin from Nile tilapia (Oreochromis niloticus)

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意见箱

Optimisation of extraction conditions and characteristics of skin gelatin from Nile tilapia (Oreochromis niloticus)

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意 见 箱

作者其他论文更多>>

意见箱