Production of animal feed (Base L ) from cheese whey

奶酪生产的副产品乳清或乳清给许多奶酪制造商带来了严重的处理问题。通过污水系统处理乳清会因其高的生化需氧量(BOD：30,000和60,000毫克/L)而使处理设施不堪重负。一家工厂向污水系统排放1000加仑的乳清，产生的负荷相当于1000多个家庭用户。因此，有必要寻找替代途径，将这些废物转化为增值产品，既能管理废物，又能生产高价值的最终产品。在这方面，拟议的项目调查了乳清/奶酪乳清作为生产混合培养微生物和开发高度浓缩蛋白质产品的原料的情况。具体目标包括：分离/鉴定过程中涉及的微生物菌株，并优化各种工艺步骤(蛋白质沉淀、发酵、蛋白质回收)，以提高蛋白质的产量，并从最终干燥产品中消除所有活微生物。这是一种有利的、绿色的方法。该项目将与HET公司合作进行，HET公司是一家积极参与研究的公司，该项目的成功完成将使人们了解奶酪乳清生物转化技术的完整技术诀窍，从而生产出可用作动物饲料的有效和经济的蛋白质产品。该项目将提供培训HQP的机会(3名博士生、1名博士后和1名研究助理)。

Cheese whey or lactoserum, by-product of cheese manufacturing, has posed serious disposal problems for many cheese makers. Whey disposal through sewage systems can overload the treatment facilities by its high biochemical oxygen demand (BOD: 30,000 and 60,000 mg/L). A plant discharging 1000 gal of whey to a sewage system creates a load equivalent of more than 1000 domestic users. Thus, there is a need to look for alternate avenues to transform these wastes into value-added products which can manage the wastes as well as simultaneously produce a high value end-product. In this pursuit, the proposed project investigates the use of lactoserum/cheese whey as raw material for production of mixed culture microorganisms and for the development highly enriched protein product. The specific objectives includes: isolation/identification of microbial strains involved in the process and optimization of various process steps (protein precipitation, fermentation, protein recovery) to increase the yield of the protein and to eliminate all live microorganisms from the final dried product. This is an advantageous and green approach. The project shall be carried in collaboration with Corporation HET, a company which is actively involved in the research and the successful completion of the project will result in understanding complete know-how of the technology of biotransformation of cheese whey leading to efficacious and economic protein product ready for use as animal feed. The project will provide an opportunity to train HQP (3 Ph.D. students, one post doc and a research associate).