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

Extraction of polysaccharide from Inonotus obliquus by way of applying high intensity pulsed electric fields (PEF) was studied. Through single factor experiments and orthogonal experiment, the effect of PEF on polysaccharide extraction rate (ER) was discussed, and the comparison of alkali extraction method (TAEM), microwave-assist extraction method (MAEM) and ultrasonic-assist extraction method (UAEM) has been done. A set of optimal parameters (PEF strength=30kV/cm, pulse number=6, pH=10, liquid/solid ratio=25mL/g) were tested and analyzed, at which the ER could be up to 49.8%, 1.67 times of that by using TAEM, 1.12 times of MAEM, and the purity of polysaccharide was 1.40 times of UAEM. The experiments proved that PEF technique is an effective way to extract polysaccharide from the Inonotus obliquus, with higher extraction rate, shorter time (12μs), and less impurities.