Process for extracting tea saponin from tea seed cakes or meal

Abstract

The invention relates to a process for extracting tea saponin from tea seed cakes or meal after oil frying by applying an industrial production device. The process comprises the following steps: crushing the tea seed cakes or the meal (leading the particle size to be 1-3mm), then sending into a steaming and stir-frying cauldron, drying (preventing the water content from exceeding 7%), then leading the material to enter into a material storage cylinder, using a screw conveyor to send the material into a rotocel extractor, and adding a solvent for extraction; carrying out residue-liquid separation (the meal residue can be used as a feed or a fertilizer) after double extraction, leading extraction solution to enter into a long pipe evaporator, removing part of water by double evaporation, and recycling the solvent (which can be recycled); and concentrating the extraction solution via a vacuum concentration tank, then crystallizing and drying, and obtaining a fine saponin finished productfor packaging and leaving a factory. A product produced by the process contains 81.5% of active matters, and the pH value is 5.9. Compared with other methods, the process has the advantages of high product purity, light color, high production rate (14%), energy conservation, low consumption, no pollution and environmental protection, and is easy for operation and the like.

Description

technical field

[0001] The invention relates to a process for extracting tea saponin from tea seed cake. Background technique

[0002] Tea saponin is a kind of nonionic surfactant with excellent performance. It has good performance in emulsification, foaming, lubrication, foam stabilization and decontamination. It is widely used in building materials, pesticide processing, aquaculture, food, light Chemical, pharmaceutical, wool spinning, knitting and other industries; can be used to manufacture various types of emulsifiers, pesticides, rubber, fire extinguishing materials, film, hair care products, foamed reinforced concrete, shrimp breeding agents, etc., can develop more than 180 A series of products with huge development potential and broad market prospects. Regarding the extraction and application of tea saponin, there have been many years of research and practice in my country. In summary, there are usually 4 methods, namely water immersion, adsorption, microwave / light ...

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