正交优化双螺杆挤压前处理协同微波辅助提取香菇多糖的工艺研究  

Study on Extraction of Lentinan by Orthogonal Optimization of Twin-Screw Extrusion Pretreatment and Microwave-Assisted Extraction

作　　者：周婧琦 秦令祥 张彩芳 罗双群 崔胜文 ZHOU Jingqi;QIN Lingxiang;ZHANG Caifang;LUO Shuangqun;CUI Shengwen(Luohe Vocational College of Food,Luohe 462300,China;Henan Blue Sunset Food Science and Technology Co.,Ltd.,Luohe 462300,China)

机构地区：[1]漯河食品职业学院,河南漯河462300 [2]河南夕阳蓝食品科技有限公司,河南漯河462300

出　　处：《现代食品》2020年第22期89-94,99,共7页Modern Food

基　　金：河南省科技攻关项目(编号:182102110005);河南省高等学校青年骨干教师培养计划项目(编号:2017GGJS299)。

摘　　要：利用正交试验法优化香菇多糖的双螺杆挤压前处理协同微波辅助提取工艺。以香菇多糖提取率为指标,采用单因素试验和正交试验,确定最佳提取工艺参数。结果表明,双螺杆挤压处理的最佳工艺条件为:香菇粉加湿量18%,喂料量220 g·min-1,挤压机螺杆转速250 r·min-1,挤压温度150℃。在此工艺条件下,香菇多糖的提取率为6.63%。在双螺杆挤压前处理工艺优化的基础上,进行微波辅助提取,最佳工艺参数为:微波功率300 W,提取时间8 min,料液比为1∶40(g·mL-1),在此工艺条件下,香菇多糖提取率平均值为9.23%。Used the orthogonal test to optimize the pretreatment of the twin-screw extrusion technique assisted microwave extraction of lentinan from Lentinus edodes.With the extraction rate as the index,single factor test and orthogonal test were used to determine the best extraction process parameters.The result showed that the optimum technological condition of the pretreatment of the twin-screw extrusion technique were:moisture content 18%,feet rate 220 g·min-1,screw speed 250 r·min-1,extrusion temperature 150℃.Under these conditions,the extraction rate of LNT was 6.43%.Based on the optimized result of the pretreatment of the twin-screw extrusion technique,microwave assisting extraction was further carried out.The optimum technological parameters of microwave extraction were:microwave power 300 W,extraction time 8 min,solid-liquid 1∶40(g·mL-1).Under these conditions,the extraction rate of LNT was 9.12%.

关 键 词：香菇多糖 双螺杆挤压 微波 提取 

分 类 号：TQ461[化学工程—制药化工]