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Full-Text Articles in Agriculture

Optimization Of Extraction Process And Quality Analysis Of Pseudosciaena Crocea Liver Oil By Response Surface Methodology, Dou Xin, Wu Yan-Yan, Yang Xian-Qing, Hu Xiao, Wang Yue-Qi Jul 2020

Optimization Of Extraction Process And Quality Analysis Of Pseudosciaena Crocea Liver Oil By Response Surface Methodology, Dou Xin, Wu Yan-Yan, Yang Xian-Qing, Hu Xiao, Wang Yue-Qi

Food and Machinery

The large yellow croaker liver was used as the raw material, and the optimal protease was used to extract and extract the large yellow croaker liver oil. Taking the large yellow croaker liver oil extraction rate as an evaluation index, the best enzymatic extraction process was determined through single-factor experiments and response surface experiments. The extraction rate, quality, and fatty acid composition of the large yellow croaker liver oil were compared with those obtained by light alkali method. The results showed that the best enzymatic extraction conditions were as followed: for large yellow croaker liver was using neutral protease, the …


Effect Of Refining On Main Physical And Chemical Indexes And Volatile Components Of Beef Tallow, Liu Jia-Min, He Xin-Yi, Liu Xiao-Dong, Yan Xi-Chun, Liao Zhen-Yu Apr 2020

Effect Of Refining On Main Physical And Chemical Indexes And Volatile Components Of Beef Tallow, Liu Jia-Min, He Xin-Yi, Liu Xiao-Dong, Yan Xi-Chun, Liao Zhen-Yu

Food and Machinery

The effect of refining on main physical and chemical indexes and volatile components of beef tallow was investigated. The acid value, peroxide value, iodine value, fatty acid composition and aroma composition of beef tallow were analyzed during the refining. The results showed that the acid value decreased first and then increased after the deacidification process, and the peroxide value increased, while the iodine value decreased. Throughout the refining process, the acid value of the beef tallow was 0.37 mg/g with the peroxide value of 0.057 5 g/100 g, and the iodine value of beef tallow was 12.47 g/100 g. There …


Growing Torula Yeast (Candida Utilis) For Food Grade Fatty Acids, Zachary Christman Feb 2020

Growing Torula Yeast (Candida Utilis) For Food Grade Fatty Acids, Zachary Christman

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

The focus of this article is the cultivation of a food grade yeast for the production of fatty acids without the restrictions of climate or growing season. Torula yeast (Candida utilis) was selected since it can grow on a wide variety of culture media and has over 60 years of use in the food industry. The fatty acid composition of C. utilis grown on two different media are presented in this article; the first example using completely synthetic media and another using distiller’s vinasse. Also, the effect of different culturing conditions on the percentage of various fatty …