2 results about "Stevia Leaf" patented technology

The present application relates to the technical field of traditional Chinese medicine, and particularly relates to a traditional Chinese medicine composition and application thereof in preparation of an antiviral medicine. The present application comprises honeysuckle, stevia leaf, wild chrysanthemum, isatis leaf and osmanthus, and the traditional Chinese medicine composition obtained thereby contains rich plant microRNA, MIR2911, thereby playing a good antiviral effect. Moreover, due to the negative effect of a flavoring agent on active ingredients in a product, the present application improves the prescription, and on the basis of avoiding the addition of a flavoring agent and a preservative, the product of the prescription obtains a good taste and can maintain stable quality for several months.

This invention provides a method for the simultaneous preparation of modified stevia leaves and crude glucosyl steviol glycosides, belonging to the field of food additives. The invention first involves disrupting the cell walls of stevia leaves using a plant cell wall-degrading enzyme, then directly adding a glycosyl donor using cyclodextrin glucosyltransferase as a catalyst in a one-pot glycosylation reaction. This allows for the simultaneous release and modification of steviol glycosides, achieving a final conversion rate of 68.57%. After the reaction, the mixture is filtered and freeze-dried, simultaneously obtaining modified stevia leaves with intact morphology and surface and pore interior loaded with modified glucosyl steviol glycosides, as well as crude glucosyl steviol glycoside powder. Sensory evaluation of the modified products showed that the modified stevia leaves exhibited significantly better sweetness, bitterness, and astringency than the unmodified leaves, and the crude glucosyl steviol glycosides had a significantly better taste than the extract from the unmodified stevia leaves. This invention features a short process flow, low cost, and achieves full utilization of stevia raw materials, demonstrating promising prospects for industrial application.