首页>
外国专利>
METHOD FOR PRODUCTION OF Lactobacillus delbrueckii subsp bulgaricus STRAIN WITH LOW LACTIC ACID POSTPRODUCTION DEGREE, TEXTURISING STRAINS PRODUCED (VERSIONS), DAIRY PRODUCT AND METHOD OF ITS PRODUCTION USING TEXTURISING STRAINS
METHOD FOR PRODUCTION OF Lactobacillus delbrueckii subsp bulgaricus STRAIN WITH LOW LACTIC ACID POSTPRODUCTION DEGREE, TEXTURISING STRAINS PRODUCED (VERSIONS), DAIRY PRODUCT AND METHOD OF ITS PRODUCTION USING TEXTURISING STRAINS
FIELD: food industry.;SUBSTANCE: invention deal with a method for production of Lactobacillus delbrueckii subsp. bulgaricus strain with reduced lactic acid postproduction. The method involves exposure of Lactobacillus delbrueckii subsp. bulgaricus, mother strain possessing high texturising properties and high acid postproduction to the impact of a weak mutagen represented by ethyl methanesulfonate (EMS) and subsequent selection of strains with preset characteristics. Characterisation of selected Lactobacillus delbrueckii subsp. bulgaricus texturising strains (versions) is as follows: a) they have pH (measured by standard method) within the range of 4.25-4.55 after 14 days of storage; b) they have texturising properties (measured using viscosity determination analysis) no less than 25 Pa or a) hey reduce pH by at least 0.20 or 0.30 pH units after 14 days of storage at a temperature of 8°C; b) they have texturising properties (measured using viscosity determination analysis) no less than 25 Pa. Invention relates to application of the selected strains for production of fermented dairy products and dairy products containing Lactobacillus delbrueckii subsp. bulgaricus strain with the above characteristics.;EFFECT: invention enables production of a dairy product having more expressed texturising properties with less acid postproduction.;12 cl, 5 dwg, 2 ex
展开▼
机译:领域:本发明涉及一种生产德氏乳杆菌亚种的方法。保加利亚乳酸菌生产后减少的菌株。该方法涉及暴露乳杆菌亚种。保加利亚,具有高变形性能和高产酸度的母菌株,受到以甲基磺酸乙酯(EMS)为代表的弱诱变剂的影响,并随后选择了具有预设特性的菌株。选定的德氏乳杆菌亚种的表征。保加利亚构造菌株(版本)如下:a)储存14天后其pH(通过标准方法测量)在4.25-4.55范围内; b)它们具有不小于25 Pa的变形性能(使用粘度测定分析法测量)或a)在8°C的温度下存放14天后,其pH值至少降低0.20或0.30 pH单位; b)它们具有不小于25Pa的变形性能(使用粘度测定分析测量)。本发明涉及所选菌株在生产发酵乳制品和含有德氏乳杆菌亚种的乳制品中的应用。具有上述特征的保加利亚菌株;效果:本发明能够生产具有更明显的变形性能的乳制品,而后期生产的酸较少。12 cl,5 dwg,2 ex
展开▼