超声波强化水洗改性紫胶工艺  

Process Optimization for Ultrasonic-enhanced Washing of Modified Lac

作　　者：李坤[1] 张弘[1] 郑华[1] 李凯[1] 张雯雯[1] 

机构地区：[1]中国林业科学研究院资源昆虫研究所国家林业局资源昆虫培育与利用重点实验室,云南昆明650224

出　　处：《食品科学》2011年第18期102-107,共6页Food Science

基　　金：国家林业局"948"项目(2008-4-78);科技部农业科技成果转化项目(2010GB24320619);国家林业科技成果推广项目([2010]11)

摘　　要：为了提高改性紫胶产品质量和生产效率,采用超声波物理场强化水洗改性紫胶,通过单因素试验确定超声波功率、超声波作用时间、超声波脉冲时间和料液比的适用范围,利用响应曲面法对影响因素进行优化,得出超声波强化水洗改性紫胶工艺的最佳条件。结果表明,改性紫胶水洗工艺的最佳条件为超声波功率1200W、超声波洗涤时间8min、脉冲时间(6s,10s)、料液比1:9(g/mL);洗涤3次即可使改性紫胶产品的灰分指标达到国家一级标准。In order to improve the product quality and production efficiency of modified shellac,ultrasonic enhancement was introduced in the washing of modified shellac.On the basis of one-factor-at-a-time experiments,response surface methodology was employed to optimize ultrasonic power,ultrasonic treatment time,ultrasonic pulse transit time and material/liquid ratio.The results indicated that the optimal ultrasonic-enhance washing conditions were ultrasonic treatment power of 1200 W,ultrasonic treatment time of 8 min,ultrasonic pulse transit time of 5.6 s,and material/liquid ratio of 1：9（g/mL）.The ash content of modified shellac could reach National Grade I after third repeated washing.

关 键 词：超声波 改性紫胶 水洗工艺 

分 类 号：TQ351.7[化学工程] TS202.3[轻工技术与工程—食品科学]