On June 17, 2016, the seminar on quality standards and control technology for yeast feed products was held in Yichang as scheduled. This meeting was supported by the National Feed Industry Standardization Technical Committee and hosted by Angel Yeast Co., Ltd., from the country's major feed enterprises. More than 200 people in charge of quality control, procurement, and industry experts attended the meeting to share questions about yeast feed products and feed ingredients. In order to let more friends know about the conference, Xiaobian will share the lectures he has learned. "Key technology for production of yeast products and control of fermentation process" Van Rosenberg (Netherlands) He has been engaged in yeast production research for 30 years, designing and constructing yeast plants for world-renowned yeast companies, and researching production processes such as fermentation and enzymatic hydrolysis. Since 1992, he has cooperated with An Qi and witnessed the rapid development of An Qi. In the expert of Rosenberg, An Qi is a veritable international yeast company. 1 yeast and related products introduction Active yeast ◠A variety of Saccharomyces species. ◠The strain must be certified by an authority. Inactive yeast ◠Yeast hydrolysate ◠Yeast cell wall ◠Yeast extract ◠Organic trace element yeast Different types of yeast have different uses. The yeast species used for feed are more stringent than those used for food. Some yeast strains can be used on food, but not for the production of feed products. active yeast function ◠Different strains (Saccharomyces cerevisiae, Brady yeast) ◠Stimulate rumen peristalsis ◠Consumption of oxygen in the stomach, inhibiting the proliferation of harmful bacteria ◠Promote the conversion of lactic acid ◠Reduce diarrhea inactive yeast function ◠Protein source ◠Vitamin source ◠Exogenous nucleic acid ◠Organic trace element sources (selenium, zinc, chromium, etc.) 2CIP (Clean In Place) cleaning is the key production process to ensure the quality of feed yeast Feeding yeast has very strict disinfection regulations, and it is necessary to check the microbiological status of the equipment frequently and in real time. Therefore, automatic CIP cleaning is particularly important. CIP cleaning means cleaning the equipment before performing all production operations, using high-speed cleaning agents, ensuring temperatures above 85 ° C, and cleaning for long enough. CIP cleaning system top view CIP cleaning system distribution line 3 The importance of environmental protection It is not just to meet the requirements of laws and regulations, but every company must have social responsibility for environmental protection. Although investing in environmentally friendly facilities will increase investment and operating costs, this is an important guarantee for the sustainable development of yeast companies. Biological treatment Precipitation facilities "Quality Key Control of Yeast Hydrolysate" Tilak Nagoda Visana (USA) Tilak Nagoda Visana is a senior expert in yeast hydrolysate. He is a Ph.D. student at Cornell University. He has worked in R&D for more than 25 years in the world's top 500 companies. He has worked as a R&D technical director at a US company. Editor-in-chief or editor of 5 yeast technology books, including fermentation technology, taste and enzymatic technology. He has several invention patents in the United States, including yeast selenium. In this speech, we detailed how the high-quality yeast hydrolysate is produced, and the development process from the brewer's yeast powder to the pure cultured yeast hydrolysis. The purely cultured yeast hydrolysate is used to replace the plasma protein application in the teaching material. It has been developed to replace fishmeal in various fields of cultivation. The first use of the beer yeast powder in the feed industry, because it is not enzymatically treated, the utilization of nutrients such as proteins contained in the feed industry is extremely low, and the functional components in the yeast cannot be utilized by animals. The application of directed enzymatic hydrolysis technology in the yeast industry can increase the utilization rate of yeast protein to 90%, and the release of functional components in yeast greatly expands the application value and application field of yeast products. Beer yeast powder is only a by-product of the beer industry. These products have insurmountable problems such as unstable quality, unbalanced nutrition and bitter taste, and unstable supply. The yeast culture technology innovatively produces pure culture yeast and avoids the problems of bitterness and product quality compared with other similar products mainly relying on the source of beer yeast, and the application field is wider, which reduces the risk of cooperation for users. , increased product application options. "Anqi Yeast Product Quality Control System" Zhao Xuewen Minister of Quality, Angel Yeast Co., Ltd., National Food Safety Division, Expert in Production Management of Yeast and Related Products. Mainly responsible for the quality management of the companies under the Anqi Group, responsible for the establishment and promotion of the company's ISO9001, ISO22000, BRC, food protection and other management systems. Anqi quality management is transforming from automation to intelligence. Automatic analysis, automatic warning, automatic correction, automatic adjustment, intelligent online automatic adjustment control to obtain more stable and better quality. "Quality Standards for Yeast Products Based on Efficacy Evaluation" Wang Xuedong Professor of Wuhan Light Industry University, postdoctoral in animal husbandry. Technical expert of National Yeast Technology Research and Promotion Center. He has presided over nearly 20 scientific and technological projects such as the National Agricultural Transformation Fund, the National Spark Program, the National 863 Project Subproject, the Hubei Provincial Natural Fund Project, and the Wuhan Municipal Research Project. The identification of five scientific research achievements has reached international advanced level, and four of them have won provincial and ministerial-level scientific and technological progress awards. Published more than 40 academic papers. With the increasing number of feed companies using yeast products, and the related products on the market are also uneven, the troubles for the quality control person. Professor Wang's speech from the perspective of efficacy and user, analyzes which indicators affect the application of hydrolysate and cell wall, and how to identify and select. A large number of animal experiments have confirmed that there are indeed large differences in the application effects of yeast hydrolysates from different yeast sources and different processes. Different types of yeast cell walls have different application effects. How to choose a good yeast hydrolysate product? ◠Stable yeast material ◠Judging the source of yeast raw materials (appearance color, smell, taste, impurities, etc.) ◠Determination of conventional indicators (crude protein, RNA) ◠Product type determination (amino acid nitrogen) ◠Product quality indicators (acid-soluble protein, small peptide) How to choose a good yeast cell wall product? ◠Stable yeast material ◠Judging the source of yeast raw materials (appearance color, smell, impurities, etc.) ◠Determination of technical quality indicators (glucan, mannan, crude protein, dissolution rate) "Progress in the standardization of yeast feed products" Hu Junpeng Director of Animal Nutrition Technology, Angel Yeast Co., Ltd., Doctor of Animal Nutrition, Huazhong Agricultural University. He has hosted nearly 20 research projects on yeast, and the two results have been identified as internationally advanced. One achievement won the second prize of Hubei Science and Technology Progress. He has published 14 high-level technical articles in the first-level journals and core journals. As the world's leading supplier of yeast products, the national standard for food additives such as yeast for food processing, yeast extract, and yeast classification guidelines drafted by An Qi has been well received by the industry; in recent years, with yeast products in the feed Entrusted by the National Feed Industry Standardization Technical Committee, Anqi has undertaken the task of marking national or industry standards such as feed active dry yeast, yeast selenium and yeast cell wall. There are a wide variety of yeast products, ranging from products managed as feed additives to products managed as feed ingredients. However, the core production process is yeast fermentation, so there is a certain correlation. In order to improve the standardization and coordination of feed yeast products and to better serve the feed industry, Anqi will continue to promote the awareness of yeast feed products in the industry and help feed enterprises reduce the cost of use. Continue to expand the range of applications of yeast feed products.
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