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作 者 ：侯如标， 张学宇， 吕智慧， 邱芳萍

期 刊 ：核农学报 2016年 30卷 2期 页码：313-322

关键词：林蛙胶原蛋白肽(LWT)；金属试剂(TXJ)；脱硫；响应面；电子扫描电镜；

Keywords:rana collagen peptide (LWT), metal reagent (TXJ), desulfurization, response surface, scanning electron microscopy(SEM),

摘 要 ：为去除林蛙胶原蛋白肽(LWT)作为精细化工原料在储存和加工中产生的不良气味,使用金属催化剂Pd/Al₃O₂进行脱硫处理,利用响应面法优化金属催化剂对LWT的脱腥除臭处理工艺,并采用电子扫描电镜和能谱仪对处理后样品进行分析比较。结果表明,金属催化剂Pd/Al₃O₂对LWT脱腥除臭处理的最佳条件为:金属催化剂添加量7.30%、pH值6、时间0.55h、温度43.75℃,此条件下的综合指标高达82.38;金属催化剂Pd/Al₃O₂处理后,LWT的结构无明显变化,其活性未受到影响,且所含元素种类无变化,但硫元素的Wt%和At%明显减少。本研究可为肽粉脱腥除臭提供技术参考。

Abstract:To solve the frog collagen peptide (LWT) as a chemical raw material in storage and processing of bad smell, use metal catalyst Pd/Al₃O₂ desulfurization process, and the response surface method was used to optimize the metal catalyst trends of LWT deodorization process, using electronic scanning electron microscope and energy spectrometer(EDS) analysis of processing samples. The results show that the optimum conditions for the the metal reagent of LWT deodorization was TXJ added amount of 7.30%, the reaction pH6, the reaction time 0.55h, the reaction temperature 43.75 ℃, has been tested the integrated indicators can be achieved in this case 82.38; And after the metal reagent, LWT no significant changes in the shape and activity was not affected. And element types contained no change, sulfur elements Wt% and At% decreased significantly.The results could provide reference basis for the peptide powder deodorization.

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