响应面法优化过氧化氢法脱除柿子色素工艺的研究

Study on optimization of hydrogen peroxide removal of persimmon pigment by response surface methodology

中文关键词:  柿子  脱色  过氧化氢法  响应面法

英文关键词:persimmon  decolorizing  hydrogen peroxide process  response surface method

中文摘要:

      目的 采用响应面法优化过氧化氢法脱除柿子色素工艺。方法 采用过氧化氢法对柿子的色素进行脱除。在单因素试验的基础上, 采用脱色率和多糖保留率为评价指标, 运用响应面法进行工艺条件优化。结果 过氧化氢脱除柿子中色素的最佳工艺为过氧化氢添加量10%、脱色温度40 ℃、脱色时间52 min, 在此条件下脱色率为72.13%±0.24%, 多糖保留率为85.75%±0.46%。结论 采用响应面法优化的柿子过氧化氢法脱除色素能够达到理想的脱色效果、不增加过氧化氢成本, 同时也能保持较高的多糖保留率、工艺准确可靠、对于实际生产具有一定参考价值。

英文摘要:

      Objective The effects of hydrogen peroxide content, decolorization temperature and decolorization time on the removal efficiency of persimmon pigment were studied. Methods The pigment of persimmon was removed by hydrogen peroxide method. On the basis of single factor test, decolorization rate and polysaccharide retention rate were used as evaluation indexes, and the process conditions were optimized by response surface method. Results The optimal process for removing pigment from persimmon by hydrogen peroxide was 10% added hydrogen peroxide, decolorization temperature at 40 ℃, and decolorization time at 52 min, under these conditions, the decolorization rate was 72.13%±0.24%, and the polysaccharide retention rate was 85.75%±0.46%. Conclusion The persimmon hydrogen peroxide method optimized by response surface method can achieve ideal decolorization effect without increasing the cost of hydrogen peroxide, meanwhile, it can maintain a high retention rate of polysaccharides, and the process is accurate and reliable, has certain reference value for actual production.