Application of lactobacillus plantarum in increasing alkaloid and/or polysaccharide in motherwort

The invention relates to the technical field of traditional Chinese medicine fermentation, and provides application of lactobacillus plantarum in increasing alkaloid and/or polysaccharide in motherwort. The herba leonuri is fermented through lactobacillus plantarum, so that the alkaloid content of the fermented herba leonuri is averagely increased by 28.24% and the polysaccharide content of the fermented herba leonuri is averagely increased by 58.50% compared with an unfermented group, and the increase is extremely remarkable (Plt; 0.01) of the substrate. When the alkaloid content reaches the maximum value, the alkaloid content is averagely increased by 44.51% compared with that of an unfermented group, and when the polysaccharide content reaches the maximum value, the polysaccharide content is averagely increased by 100.03% compared with that of the unfermented group. Results show that the content of part of active ingredients before and after fermentation of motherwort is remarkably increased, and the medic