豆渣异黄酮提取工的响应曲面优化法毕业论文.doc

学生毕业论文 题 目 豆渣异黄酮提取工艺的响应曲面优化法 作 者 院 (系) 化学与化工学院 专 业 化学指导教师 答辩日期 201年 5 月 2日 榆 林 学 院 毕业设计（论文）诚信责任书 本人郑重声明：所呈交的毕业设计（论文），是本人在导师的指导下独立进行研究所取得的成果。毕业设计（论文）中凡引用他人已经发表或未发表的成果、数据、观点等，均已明确注明出处。尽我所知，除文中已经注明引用的内容外，本论文不包含任何其他个人或集体已经公开发表或撰写过的研究成果。对本文的研究做出重要贡献的个人和集体，均已在文中以明确方式标明。 本人毕业设计（论文）与资料若有不实，愿意承担一切相关的法律责任。 论文作者签名: 年月日 Optimization of isoflavones extraction from soybean dregs using response surface methodology ABSTRACT Soybean isoflavones from soybean extracted trace active substances,has many important physiological functions.Bean dregs as experimental material,this paper studied the soybean isoflavone extraction technology. Organic solvent extraction or soaking extraction is a king of commonly used to extract soybean isoflavone extraction method.This experiment with ethanol as solvent,soy bean dregs as raw material,soybean isoflavone extraction technology was studied and selected the concentration,extraction time and solid-liquid ratio,temperature four variables impact on soybean isoflavone extraction technology,and has carried on the response surface method optimization analysis,the relevant mathematical model is established.The research results show that ethanol concentration,temperature,extraction time and solid-liquid ratio on bean dregs in the extraction of soybean isoflavones are varying degress of impact.From the experiment results indicate that the ethanol concentration affects the quantity of bean dregs isoflavone extraction,the largest amount of time for extracting soybean isoflavines minimal impact. By response surface method for optimum process condition of soybean isoflavones extract,ethanod concentration 70%,5h temperature 60℃, ?extraction time, liquid than 16 ml/g. Extract the quantity at this time can be up to 7.72 mg/g, with the experimental value of 7.68 mg / 10 g. This experiment scheme has certain feasibility, therefore, has certain theory value, the model can pr