摘要
为了提高造纸法再造烟叶原料中烟叶碎片的萃取率,以水为溶剂,以萃取时间、萃取温度、液料比进行3因素5水平中心组合设计,采用响应面法优化烟叶碎片萃取参数,建立数学模型,并进行实验验证。结果表明,最优工艺条件为:萃取温度69℃,萃取时间39 min,液料比10.6∶1(mL∶g);得到了数学预测模型,对最佳工艺条件萃取率的预测值为40.46%,与实测值(40.22%)的相对误差仅为0.59%。
Water as solvent the extraction temperature, mized in order to increase the extraction ratio of tobacco extraction time and liquid-solid ratio were opti- scrap as raw material of paper-making reconstitu- ted tobacco, and the component experiment design with 3 factors and 5 levels were applied. The response surface methodology was applied to optimize the extraction parameters of tobacco scrap, and mathematical model was established and validated. The results showed that ：the optimum conditions were：the extraction temperature 69 ℃, extraction time 39 min,liquid material ratio 10.6：1 ;when validation experiments were carried out at these optimum conditions,for 3 times,the average extraction of tobacco stems is 40.22%, the predicted values of the mathematical model is 40.46%, the relative error between test values and pre- dicted values was 0.59% ,which was well matched with the predicted content.
出处
《应用化工》
CAS
CSCD
2013年第1期22-25,29,共5页
Applied Chemical Industry
基金
国家自然科学基金项目(61273204)
关键词
中心组合设计
响应面法
烟叶碎片
萃取
造纸法再造烟叶
central composite design
response surface methodology
tobacco scrap
extraction
paper- making reconstituted tobacco
