Bioprocessing and Industrial Value Added Program, Department of Grain Science and Industry, Kansas State University, 202 BIVAP Building, 1980 Kimball Avenue, Manhattan, Kansas 66506, United States.
J Agric Food Chem. 2010 Dec 22;58(24):12744-8. doi: 10.1021/jf103129t. Epub 2010 Nov 17.
Carotenoid-enriched distillers dried grain with solubles (DDGS) developed as a value-added animal feed to provide carotenoids from mono and mixed culture (Mx) fermentation of red yeasts Phaffia rhodozyma (PR) and Sporobolomyces roseus (SR) were evaluated for their nutritional composition and compared to the control (C) DDGS. Apart from providing carotenoids, all three fermentation treatments reduced fiber with best reduction of 77% in PR, enhanced crude fat with highest of 81% in Mx, and reduced protein, amino acids and nitrogen by 50% in PR. DDGS fiber reduction by 77% was achieved by P. rhodozyma in the absence of any pretreatment. Qualitative and quantitative differences in fatty acid profiles were seen among the treatments. Vaccenic acid, a monounsaturated fatty acid produced in SR and Mx fermentation, was absent in C and PR. All these nutritional modifications are highly desirable in different DDGS-based animal feeds and can be explored to obtain tailor-made feeds/feed blends for specific animal diets.
富含类胡萝卜素的酒糟干燥物及其可溶物（DDGS）作为一种增值动物饲料开发，从红酵母 Phaffia rhodozyma（PR）和 Sporobolomyces roseus（SR）的单菌和混合菌（Mx）发酵中提供类胡萝卜素，其营养价值与对照（C）DDGS 进行了评估。除了提供类胡萝卜素外，所有三种发酵处理都减少了纤维，PR 中的纤维减少最多，达到 77%，Mx 中的粗脂肪增加最多，达到 81%，PR 中的蛋白质、氨基酸和氮减少了 50%。PR 中的 P. rhodozyma 在没有任何预处理的情况下，将 DDGS 的纤维减少了 77%。处理之间的脂肪酸图谱存在定性和定量差异。反式油酸，一种在 SR 和 Mx 发酵中产生的单不饱和脂肪酸，在 C 和 PR 中不存在。所有这些营养改良在不同的基于 DDGS 的动物饲料中都是非常理想的，可以探索获得针对特定动物饮食的定制饲料/饲料混合物。
