ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

In this paper the influence regularity of the main parameters of the extrusion cooking system of barley used as beer adjunct on indexes observed was studied by experiments at the laboratory. These parameters are diameter of nozzle, barrel temperature, moisture content percentage of barley, screw speed and the distance from the internal surface of die plate to the end surface of the end of screw. The indexes include the filtration speed, the recoverable ratio of wort extract and iodine value of wort. The research results indicate the extruded barley may be used as beer adjunct. Meanwhile the recoverable ratio of wort extract for extruded barley is higher than that for the traditional non-extruded barley.