食品科学 ›› 2011, Vol. 32 ›› Issue (18): 102-107.doi: 10.7506/spkx1002-6630-201118022

• 工艺技术 • 上一篇    下一篇

超声波强化水洗改性紫胶工艺

李 坤,张 弘*,郑 华,李 凯,张雯雯   

  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
  • 出版日期:2011-09-25 发布日期:2011-09-24
  • 基金资助:
    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)

Process Optimization for Ultrasonic-enhanced Washing of Modified Lac

LI Kun,ZHANG Hong*,ZHENG Hua,LI Kai,ZHANG Wen-wen   

  1. (Key Laboratory of Cultivation and Utilization of Resource Insects, State Forestry Administration, Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, China)
  • Online:2011-09-25 Published:2011-09-24

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。

关键词: 超声波, 改性紫胶, 水洗

Abstract: 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.

Key words: ultrasoni, modified shellac, washing process

中图分类号: