发明申请
US20050053582A1 Method of improving the efficacy of lactic acid bacterial starter cultures and improved starter culture compositions
审中-公开
基本信息:
- 专利标题： Method of improving the efficacy of lactic acid bacterial starter cultures and improved starter culture compositions
- 专利标题（中）：提高乳酸菌发酵剂培养和改善发酵培养组合物功效的方法
- 申请号：US10718000 申请日：2003-11-21
- 公开(公告)号：US20050053582A1 公开(公告)日：2005-03-10
- 发明人： Boerge Kringelum , Dan Nillson , Kim Soerensen
- 申请人： Boerge Kringelum , Dan Nillson , Kim Soerensen
- 优先权： DKDK0633/97 19970530
- 主分类号： A23C9/123
- IPC分类号： A23C9/123 ; C12N1/20 ; C12N1/21 ; C12N9/02 ; C12P7/56 ; C12P39/00 ; A61K48/00
摘要：
Methods of enhancing the growth rate and/or controlling the metabolic activity of lactic acid bacteria and of improving the shelf life and/or the quality of an edible product using lactic acid bacterial organisms which are defective in their pyruvate metabolism. There is also provided starter culture compositions comprising such defective lactic acid bacteria as helper organisms and lactic acid bacterial starter culture strains. Useful helper organisms are Lactococcus strains which are defective with respect to pyruvate formate lyase (Pfl) and/or lactate dehydrogenase (Ldh) activity. The helper organisms may overexpress a gene coding for a NAD+ regenerating enzyme such as NADH oxidase encoded by nox gene.
摘要（中）：
提高生长速度和/或控制乳酸菌的代谢活性的方法，以及使用其丙酮酸代谢缺陷的乳酸菌生物改善食用产品的保存期限和/或质量的方法。 还提供了包含作为辅助生物的有缺陷的乳酸菌和乳酸菌发酵菌培养菌株的起始培养组合物。 有用的辅助生物体是相对于丙酮酸甲酸裂解酶（Pfl）和/或乳酸脱氢酶（Ldh）活性有缺陷的乳球菌属菌株。 辅助生物体可能过表达编码NAD +再生酶的基因，如由nox基因编码的NADH氧化酶。
IPC结构图谱:
| A | 人类生活必需 |
| --A23 | 其他类不包含的食品或食料；及其处理 |
| ----A23C | 乳制品,如奶、黄油、干酪；奶或干酪的代用品；其制备 |
| ------A23C9/00 | 奶配制品；奶粉或奶粉的配制品 |
| --------A23C9/12 | .发酵奶的配制品；应用微生物或酶的处理 |
| ----------A23C9/123 | ..仅应用乳酸杆菌科的微生物；酸奶 |