双螺杆挤压皱环球盖菇粉品质改良及加工特性  

Quality improvement and processing characteristics of twin-screw extruded Stropharia rugosoannulata powder

作　　者：班鑫荣 杨焱[2] 李文[2] 吴迪[2] 张忠[2] 李景军 陈万超[2] BAN Xinrong;YANG Yan;LI Wen;WU Di;ZHANG Zhong;LI Jingjun;CHEN Wanchao(College of Food Engineering,Anhui University of Science and Technology,Chuzhou 239000,Anhui,China;Institute of Edible Fungi,Shanghai Academy of Agricultural Sciences,Key Laboratory of Resources and Utilization of Edible Fungi(South),Ministry of Agriculture and Rural Affairs,P.R.China,National Engineering Research Center of EdibleFungi,Shanghai 201403,China)

机构地区：[1]安徽科技学院食品工程学院,安徽滁州239000 [2]上海市农业科学院食用菌研究所,农业农村部南方食用菌资源利用重点实验室,国家食用菌工程技术研究中心,上海201403

出　　处：《菌物学报》2024年第5期143-156,共14页Mycosystema

基　　金：上海市科技兴农技术攻关项目(2023-02-08-00-12-F04591)。

摘　　要：探究双螺杆挤压技术对皱环球盖菇粉加工特性的影响,以确定该技术是否具有改良皱环球盖菇粉的应用潜力。使用双螺杆挤压机对皱环球盖菇粉进行挤压温度、加水量和螺杆转速的单因素实验和响应面实验来确定最佳参数。接着运用分光测色仪、扫描电镜、粒度分析仪、红外光谱仪对挤压前后的皱环球盖菇粉进行了结构表征测定,并对其持水、持油和吸附能力进行分析,最后进行了体外胃肠道模拟消化实验。实验结果表明,皱环球盖菇粉双螺杆挤压最佳条件为:挤压温度96℃、加水量27%、螺杆转速15Hz,在此条件下皱环球盖菇粉的可溶性膳食纤维含量最高,此外,挤压处理显著改变了菇粉的颜色、粒径和结构,同时提高了其持水性、持油性,以及对胆固醇和亚硝酸盐的吸附能力;体外模拟消化实验证明,挤压处理显著提高了皱环球盖菇粉的消化率。本研究表明双螺杆挤压技术可以显著提高皱环球盖菇粉可溶性膳食纤维的含量,增强其实际营养效益,可用于皱环球盖菇粉的开发和应用。The effect of twin-screw extrusion technology on the processing characteristics of Stropharia rugosoannulata powder is explored,in order to determine the application potential of this technology in improving the quality of S.rugosoannulata powder.The single factor experiments and response surface experiment of extrusion temperature,water addition and screw speed were carried out to determine the optimal parameters by using twin screw extruder.The structure of S.rugosoannulata powder before and after extrusion was characterized by spectrophotometer,scanning electron microscope,particele sizeanalyzer and infrared spectrometer,and water retention capacity,oil retention capacity and adsorption capacity of the extruded powder were analyzed.Finally,the in vitro gastrointestinal digestion experiment was carried out.The experimental results showed that the optimum conditions for twin-screw extrusion of S.rugosoannulata powder were as follows:extrusion temperature of 96°C,water addition of 27%,and screw speed of 15 Hz.Under these conditions,the soluble dietary fiber(SDF)content of S.rugosoannulata powder was the highest.The extrusion treatment significantly changed the color,particle size and structure of the powder,and improved its water retention capacity,oil retention capacity,and adsorption capacity to cholesterol and nitrite.In vitro simulated digestion experiments showed that extrusion treatment significantly improved the digestibility of S.rugosoannulata powder.This study shows that twin-screw extrusion technology can significantly increase the content of soluble dietary fiber and enhance actual nutritional benefits of S.rugosoannulata powder,and can be applied to further development and large scale production of the powder.

关 键 词：皱环球盖菇粉 双螺杆挤压 工艺优化 加工特性 

分 类 号：TS219[轻工技术与工程—粮食、油脂及植物蛋白工程]