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均匀设计优化L-阿拉伯糖与甜味氨基酸的美拉德反应
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摘要
均匀设计是在均匀性度量下部分实施的实验设计方法。本文采用均匀设计研究反应体系初始pH、反应温度、反应时间以及物料比对L-阿拉伯糖与各种甜味氨基酸美拉德反应产物香气的影响,根据均匀设计的实验数据和感官评价结果进行回归分析得到较佳的反应条件。结果表明:L-阿拉伯糖与甘氨酸的较佳反应条件为:pH9.13,温度81℃,L-阿拉伯糖:甘氨酸(w/w)3:1,反应时间53 min;L-阿拉伯糖与丙氨酸的较佳反应条件为:pH9.42,温度80℃,L阿拉伯糖:丙氨酸0.30:1,反应时间86min;L-阿拉伯糖与丝氨酸的较佳反应条件为:pH8.13,温度81℃,L-阿拉伯糖:丝氨酸0.90:1,反应时间51min;L-阿拉伯糖与苏氨酸的较佳的反应条件为:pH9.26,温度80℃,L-阿拉伯糖:苏氨酸0.33:1,反应时间50min。
Umform is a partial implementation of the experimental design method under the uniformity measurement.In this paper,the effects of reaction conditions:PH,reaction temperature,reaction time and material ratio on the aroma in Malliard reaction products of L-arabinose with several amino acids were investigated,according to uniform design and sensory evaluation results by regression analysis of experimental data to get a better reaction conditions.The results showed that the better reaction conditions of L-arabinose and glycine were PH 9.13,temperature 81 °C,L-arabinose:glycine(w/w) 3:1,reaction time 53 min;the better reaction conditions of L-arabinose and alanine were PH 9.42,temperature 80°C,L-arabinose:glycine(w/w)0.3:1,reaction time 86 min;the better reaction conditions of L-arabinose and serine were PH8.13,temperature81°C,L-arabinose:glycine(w/w) 0.90:1,reaction time 51 min;the better reaction conditions of L-arabinose and threonine were PH9.26,temperature 80°C,L-arabinose:glycine(w/w) 0.33:1,reaction time 50 min.
引文
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