一种角蛋白发泡液的制备

Preparation of foaming agent by keratin modification

摘要:

以猪蹄甲为原料制备发泡液。采用响应面法对影响猪蹄甲角蛋白发泡液泡沫稳泡时间的四个主要因素（亚硫酸氢钠质量浓度、反应温度、反应时间、反应体系pH）进行优化，结果表明：当亚硫酸氢钠质量浓度37.06g/L、水解温度75.4℃、水解时间6.06h、反应体系pH5.54时稳泡时间达最大，最大预测值32.18h，实际测得平均稳泡时间为32h，与模型理论预测值相比相对误差在0.57%，所以采用响应面法优化得到的参数准确可靠，具有实用价值。

Abstract:

Pig nail was used as raw material to prepare foaming agent. The effects of sodium bisulfite concentration, extraction temperature, extraction time and extraction pH on the extraction process of foaming agent were investigated. The extraction parameters were optimized by the response surface methodology. The optimum extraction conditions as follows: the concentration of sodium bisulfite was 37.06g/L, reaction temperature was 75.4℃, 6.06 hours for extraction time, and the optimum pH was 5.54. Under the optimal condition, the maximum forecasted foam stability time was 32.18h, and verified value was 32h by confirmative test. The relative error was 0.57% which illuminating the regression equation is valid and reliable.