酒类酒球菌SD-2a营养需求的研究

Study on the Required Nutrition of Oenococcus oeni SD-2a

以西北农林科技大学葡萄酒学院优选酒类酒球菌SD-2a为菌种,对其苹果酸-乳酸发酵过程中所需的营养物质及其最佳比例进行了研究。结果表明,酒类酒球菌SD-2a所需的营养物质及其最佳配比为番茄汁30%,异亮氨酸、甲硫氨酸、缬氨酸、亮氨酸、天门冬氨酸各0.03 g/L,精氨酸、脯氨酸、色氨酸、盐酸半胱氨酸各0.01 g/L,硫酸镁0.2 g/L、硫酸锰0.05 g/L。

Oenoeoccus oeni SD-2a from Enology College of Northwest A＆F University was selected as microbial species for malolactic fermentation. The required nutrition and the best nutrition proportioning in the fermentation process were studied. The results indicated that the best proportioning of the required nutrition for Oenococcus oeni SD-2a in the fermentation was 30 % tomato juice, 0.03 g/L isoleucine and methionine and valine and teucine and aspartic acid respectively, 0.01 g/L tryptophan and Hcl-cysteine and arginine and proline respectively, 0.2 g/L MgSO,, and 0.05 g/L MnSO4.