Method for improving permeability of areca fiber by using supercritical carbon dioxide technology

Abstract

The invention relates to the technical field of food processing, and particularly relates to a method for improving the permeability of areca fiber by using a supercritical carbon dioxide technology. According to the method, a large number of CO2 molecules permeate into a porous structure of lignocellulose of the areca fiber by using the properties of zero surface tension, low viscosity and high diffusion coefficient of supercritical carbon dioxide, and a swelling effect is generated on the areca fiber, so that a permeation channel of the areca fiber is smooth; a compact structure of the areca fiber is damaged by a physical blasting effect generated during quick pressure relief, so that the fiber is loose and soft, and the permeability of the areca fiber is improved while the areca fiber is softened. The method has the advantages of critical temperature close to normal temperature, low critical pressure, no toxicity, no corrosion, no combustion, chemical inertness, no solvent residue, low price, easiness in obtaining, safety in use, no environmental pollution and the like, and the permeability of the areca fiber can be greatly improved, so that the production and processing conditions of edible areca are reduced, the production cost is reduced, and the optimization and upgrading of a product process are realized.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a method for improving the permeability of areca nut fibers by using supercritical carbon dioxide technology. Background technique [0002] The dried betel nut must be roasted in the process of processing, and the roasting will make the fiber lose moisture, and the shape will shrink and become dry and hard. On the one hand, the dry and hard characteristics of edible betel nut make long-term chewing of betel nut potentially harmful to the hard and soft tissues of the oral cavity. On the other hand, the dense and compact fiber structure of dried betel nut results in poor permeability, which improves the processing technology For example, the processing difficulty of the hair making process, the hair making material liquid is difficult to penetrate into the fibrous tissue structure, and to a certain extent affects the penetration effect and long-lasting sustained release eff...

AI Technical Summary

Problems solved by technology

These pretreatment methods have a certain softening effect on the betel nut fiber, but its permeability has not been significantly improved, resulting in a long time for the hair making liquid to slowly penetrate into the betel nut fiber structure in the subsequent hair making process. , the stuffy fragrance process also takes a long time, resulting in the waste of raw material liquid and high time cost and production cost

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