Shuangjia Freeze Dryer can be used as a eutectic point tester for Shuangjia series pilot freeze dryer SJIA-20FD/30FD/50FD/100FD.
In the lyophilization process, the final temperature of the material pre-freezing is based on its eutectic point, and the temperature of the material during drying and heating is based on its eutectic point. The eutectic point of a material is the temperature at which all moisture in the material freezes. To ensure that the material is completely frozen, the pre-freezing temperature is 5-10 ° C lower than the eutectic point of the material. If the pre-freezing temperature is too low, the energy consumption and production cost are increased; if the pre-freezing temperature is higher than the eutectic point, there is no guarantee that the moisture in the material is completely frozen, and the internal moisture of the material cannot be completely sublimated in the form of ice, resulting in the material being Problems such as shrinkage and loss of shape during drying. In addition, the solute contained in the unfrozen water may migrate to the surface of the material with the internal moisture during the drying process, and the surface hardening of the lyophilized product occurs. The eutectic point of a material is the temperature at which the ice crystal inside the material begins to melt when the temperature rises to a certain value. The heating temperature during drying should not be higher than the eutectic point of the material, otherwise bubbles or aeration will be generated inside the material, which will affect the quality of the lyophilized product. Therefore, it is particularly important to accurately determine the eutectic point and eutectic point of the material, and to optimize the freeze-drying process and the lyophilization process.
Ningbo Shuangjia Instrument Co., Ltd.
Address: No. 9 South Road, Xuejia Industrial Zone, Yinzhou District, Ningbo
phone
fax
QQ : 36599653
mailbox:
Black beans are rich in protein, fat, carbohydrates, carotene, vitamins B1, B2, crude fiber, calcium, phosphorus, iron and other nutrients, and contain a small amount of daidzein glycoside genistein. Can cure disease, medicine and food are salty. Traditional Chinese medicine believes that black beans are a cheap and anti-aging food, with special functions of medicine and food.
Jilin Yomi Agricultural and Sideline Products Import and Export Co.LTD. focusing on building a green base, building a characteristic industrial chain, deepening the channel supply chain, vigorously developing export trade, and leading the development direction of the entire industry; insisting on green development, promoting the concept of health, and making every effort to build a national leading enterprise in the organic grain industry.
Black Bean,Black Bean Nutrition,Black Bean Rice,Organic Black Beans
Jilin Yomi Agricultural Products Co.LTD , https://www.yomifresh.com