摘要
甲基营养型芽孢杆菌是一种新型微生物农药,简称BAC-9912。基于其热敏性强的特性,在产品制备过程由于干燥方式、温度及时间对产品中活菌存活率有着显著的影响,因此干燥过程要同时考虑物料含水量和活菌存活率两项指标。本文对甲基营养型芽孢杆菌的真空干燥工艺进行了深入的研究,对各项参数进行了细化和优化,通过实验,得到了合理的工艺控制参数,在温度70℃,真空度0.09 MPa,干燥时间8 h条件下,产品活菌率达到80%,为该产品的产业化奠定了技术基础。
Bacillus methylotrophilus（BAC -9912） is a novel microbial pesticide. Based on the character of its heat - sensitive, the survival of viable in products is influenced by drying method, temperature and time. As a result, two indicators about the moisture of material and the survival of viable should be considered in drying process. Vacuum drying process referring to Bacillus methylotrophilus is investigated deeply in the article, refining and optimizing the process parameters, the optimal parameter is 70 ℃, vacuum degree 0. 09 MPa and drying 8 h,the rate of the survival of viable could reach to 80% , thus,the technical foundation for the product industrialization is established.
出处
《河南化工》
CAS
2015年第7期14-17,共4页
Henan Chemical Industry
基金
国家高技术研究发展计划(863计划)(2011AA10A205)
