Extracting method of polyphenol from lotus root

Abstract

A process for extracting polyphenol from lotus root includes such steps as pulverizing lotus root, immersing in alcohol solution, heating while stirring, filtering, thermal concentrating, extracting with ethyl acetate, concentrating, drying to obtain coarse product, dissolving in acetone solution, separating and purifying. Its advantages are high quality of product, low cost and no pollution.

Description

Technical field: [0001] The invention relates to the field of biotechnology, in particular to a method for extracting polyphenols from lotus root. Background technique: [0002] As early as the early 1960s, Japanese scientists discovered that tea contains a large number of substances with strong antioxidant activity - tea polyphenols. By the 1980s, the preparation technology of tea polyphenols had made great progress and entered the practical stage of industrial production. At present, there are nearly ten varieties of tea antioxidant products sold in the international market in three dosage forms (water-based, oil-based, powder-based). Since the 1990s, my country has successively developed several tea polyphenol extraction processes and their products, and carried out industrial production. [0003] Lotus root is an important economic crop in China. In the past ten years, the planting area in my country has increased rapidly. There are a lot of polyphenols in lotus root....

AI Technical Summary

Problems solved by technology

However, the production of this process requires relatively large-scale production equipment, the cost is expensive, and the production conditions are relatively high.

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