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

Cynanchum otophyllum Schneid. contains the coagulant protease. The leaves of Cynanchum otophyllum are widely used to produce the milk cake (a traditional cheese) by the minority ethnic region in Yunnan Province. Milk cake made by Cynanchum otophyllum leaves usually forms a soft curd. The object was to extract the active coagulant components based on the leaves of Cynanchum otophyllum and apply the extract into milk cake manufacture. The results showed that the optimal extraction temperature to produce Cynanchum otophyllum coagulant was 4℃, while the optimal extraction liquid-solid ratio was 20mL/g and the optimal extraction solution was the citric acid-phosphate buffer (containing 150mmol/L NaCl, 1mmol/L Cys and EDTA). Compared with the milk cake made by the soaking solution of Cynanchum otophyllum leaves, the yield, protein and fat recovery rate of milk cake made by the extracted coagulant were significantly improved, with the recovery rate for protein and fat of 20.26 and 33.04 percentage points, respectively. Moreover, the milk cake made by extracted coagulant showed a more suitable hardness, higher degree of adhesion and more uniform gel network structure compared with the milk cake made by soaking solution. The study provided a reference for the development of Cynanchum otophyllum coagulant and promoted the industrialization of Yunnan traditional milk cake products.