| 摘要 |
The invention relates to lactic bacterial strains of the genera Lactobacillus ands Pediococcus which are capable of initiating and carrying out a complete malolactic fermentation on direct introduction, in the dried, frozen or lyophilised state, without a previous acclimatisation step, at a concentration of between 10<6> and 5x10<7> UFC/ml, into a wine with an alcohol content of 10 % or more and an average or high pH level. The resistance to alcohol is apparent with an excellent survival rate on inoculation and a rapid start to the fermentation activity such that said strain i) converts at least 5 %, preferably at least 10 %, of the malic acid into lactic acid in 5 days after inoculation of the wine and ii) converts at least 10 %, preferably at least 25 %, of the malic acid into lactic acid within 10 days of the inoculation of the wine. The invention further relates to a method for malolactic conversion in a wine of average to high pH by direct inoculation wit a lactic bacterial preparation, comprising at least one of said strains in the course of or at the end of the alcoholic fermentation. |
