齐鲁医学干酵母的营养-宜昌安琪酵母.pptx

活性干酵母在养猪中的应用效果
王学东 博士
武汉工业学院
安琪酵母股份有限公司
2021/10/23 星期六
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饲用高活性干酵母
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proximal colon. One hundred seventy three colonies of isolated yeasts were characterized by sequence analysis of the PCR-amplified D1/D2 domain of the 26S rRNA gene with following alignment of the recovered sequences to GenBank entries. From the 17 phylotypes found, isolates most closely related to Galactomyces geotrichum, Kazachstania slooffiae and Candida catenulata dominated in the GIT of CF piglets. Kazachstania slooffiae and Candida glabrata dominated in GIT of EF piglets. Sørenson and Morisita-Horn similarity indices between farms were low ( and respectively) and the Simpson diversity index was higher for EF () than for CF (). The study brings new data on yeasts composition in the pig GIT and shows differences in yeasts biodiversity between farms operated at different hygiene conditions. [ABSTRACT FROM AUTHOR]
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Brewer's yeast efficiently degrades phytate phosphorus in a corn-soybean meal diet during soaking treatment.Animal Science Journal; Aug2009, Vol. 80 Issue 4, p433-437, 5p, 4 charts
Microbes such as yeast and Aspergillus are known to produce phytase, and Aspergillus phytase has been used as a feed additive for improving phytate-phosphorus bioavailability in monogastric animals. We measured phytase activity in some by-products from fermented food and beverage productions by yeast and Aspergillus. The phytase activity was as high as 3577 and 2225 PU/kg DM in raw and dried brewer's yeasts, respectively. On the other hand, the phytase activity was approximately 400 PU/kg DM in white-wine yeast and red-wine yeast. The phytase activity was further low in natto (fermented soybean) residue, soy sauce cake, rice brewer's grain and the activity was not detected in dried corn-barley distiller's grain with soluble and sweet-potato distiller's residue. The stability of phytase against pepsin was much lower in