胰酶生產(chǎn)廠家 胰酶廠家 胰酶

一、簡(jiǎn)介

英文 Pancreatin。本品系自豬胰中提取的多種酶的混合物，主要為胰蛋白酶、胰淀粉酶與胰脂肪酶。按干燥品計(jì)算，每1g中含胰蛋白酶不得少于1800活力單位，胰淀粉酶不得少于21000活力單位，胰脂肪酶不得少于12000活力單位。必要時(shí)可用蔗糖或低倍胰酶稀釋。

二、性狀

為類白色或微帶黃色的粉末，部分溶于水，水溶液在Ph2～3時(shí)穩(wěn)定，在pH6以上不穩(wěn)定，Ca2+的存在可增加其穩(wěn)定性。部分溶于低濃度的乙醇溶液中，不溶于高濃度乙醇、丙酮和醚等有機(jī)溶劑中

三、用途

生產(chǎn)各種肉類香精、骨湯料、肉類及海產(chǎn)品的抽提物。

限量

1.GB14480-94：谷類及其制品、飲料、乳及乳飲料、飲液35mg/kg；食鹽100150mg/kg。

2.GB 2760（mg/kg）：配制酒12；營(yíng)養(yǎng)性固體飲料1017；即食早餐谷類食品     7.517.5；果凍1.07.0；可可粉及其他口味營(yíng)養(yǎng)型固體飲料1022（相應(yīng)營(yíng)養(yǎng)型乳飲料按稀釋倍數(shù)降低使用量）；固體飲料1013，用于營(yíng)養(yǎng)強(qiáng)化鹽（于核黃素嚴(yán)重缺乏地區(qū)）；膠基糖果1633；含乳固體飲料916.5；豆奶粉、豆粉，615；豆?jié){、豆奶，13

Trypsin (Parenzyme) is a kind of protease, EC 3.4.4.4, is a serine proteolytic enzyme extracted from the pancreas of cattle, sheep and pigs. In vertebrates, functions as a digestive enzyme. In the pancreas, trypsinogen, the precursor of trypsin, is synthesized and secreted as a component of pancreatic juice. It is decomposed into activated trypsin by the restriction of enterokinase or trypsin. It is an endopeptidase, which can convert polypeptide chains into Cleavage of the carboxyl side in lysine and arginine residues. It not only acts as a digestive enzyme, but also restricts and activates the precursors of other enzymes such as chymotrypsinogen, carboxypeptidase, and phospholipase. It is the most specific protease, and it becomes an indispensable tool in determining the amino acid arrangement of proteins.