Lactobacillus protection agent and application thereof

The invention discloses a lactobacillus protection agent and application thereof. The lactobacillus protection agent is prepared from the following components in percentage by weight: 79.9-89.9% of magnesium sulfate heptahydrate, 9.7-19.9% of citric acid monohydrate, 0.05-0.15% of sodium benzoate and 0.15-0.25% of polydimethylsiloxane. The lactobacillus protection agent solves the problem that an existing lactobacillus liquid preparation is difficult to preserve for a long time, has effects on lactobacillus plantarum, lactobacillus buchneri and lactobacillus coryniform, can remarkably prolong the preservation time of the lactobacillus plantarum liquid preparation at normal temperature, and even has a large viable bacterium amount in the sixth month. 本发明公开了一种乳酸杆菌保护剂及其应用，该乳酸杆菌保护剂包含以下重量百分数的成分：79.9～89.9％七水合硫酸镁、9.7～19.9％一水柠檬酸，0.05～0.15％苯甲酸钠和0.15～0.25％聚二甲基硅氧烷。本发明的乳酸杆菌保护剂解决了现有乳酸菌液体制剂难以长期保存的问题，对植物乳杆菌、布氏乳杆菌和棒状乳杆菌均具有效果，能够显著提高植物乳杆菌液体制剂在常温下的保存时间，甚至到第六个月都有较大的活菌量。