The invention belongs to the technical field of
food processing and health-care tea preparation, and particularly discloses
lithocarpus litseifolius and folium cortex eucommiae composite health-care tea and a preparation method thereof. The product is prepared by compounding fresh
Lithocarpus litseifolius leaves and fresh
Eucommia ulmoides leaves as raw materials according to a weight ratio of (6-8): (2-4). The preparation method comprises the following steps: synergic withering, steam-
microwave combined fixation, pre-
dehydration and spreading for cooling, anti-sticking synergic rolling, optional
coupling fermentation, segmented
drying, screening, sterilization and packaging. Wherein the
enzyme activity can be efficiently passivated, and color fixation and fragrance preservation can be realized through steam-
microwave combined
enzyme deactivation; during rolling, a food-grade physical separant is added, and stage
pressure control of
air compression, light compression, medium compression and
air compression is combined, so that the problem of adhesion of the leaves is effectively solved, and
flavor fusion and strip tightening are promoted. According to the method, the
retention rate of
chlorogenic acid, flavone and other active ingredients in the product is remarkably increased, the taste and appearance integrity of tea soup are improved, and the method is suitable for large-scale production and has a good market application prospect.