Concentration and extraction process of high-activity lactic acid bacteria metabolites

• Main Authors: YAO GUOQIANG, LIU XIANWEI, LIU JIAWEI, BAO WEICHEN, YAO YUTING, HAN QINHONG, CHEN SHENGFU, BIAN LINQUAN, YE WENXIU
• Format: Patent
• Language: Chinese; English
• Published: 31.07.2020
• Subjects: FODDER; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

The invention belongs to the technical field of lactobacillus metabolite extraction, and relates to a concentration and extraction process of high-activity lactic acid bacteria metabolites. The process comprises the following steps: strain activation: inoculating a lactobacillus strain to an MRS culture medium, and carrying out static culture; strain fermentation: preparing a fermentation substrate, dissolving the fermentation substrate in water, performing sterilizing by using a high-temperature sterilization technology, adding the lactobacillus strain, and controlling fermentation conditionsfor fermentation; centrifuging: centrifuging a strain fermentation liquid by using a disc centrifuge to obtain supernatant; metabolite compounding: adding maltodextrin or talcum powder or milk powderor starch to be mixed with the supernatant, and performing uniform stirring; concentration: rapidly evaporating moisture of a mixture by using a vacuum concentrator; and vacuum drying: rapidly evaporating the moisture by usin