Modified hydrogel of pineapple pomace fiber grafted with soybean protein and its preparation method and application

A technology of pineapple peel residue and fiber grafting, which is applied in the fields of medical science, absorbent pads, non-active components of polymer compounds, etc., can solve the problems of insufficient toughness, side reactions, and easy breakage of the glue, and achieve smooth surface and water retention Strong performance and low water permeability
CN105295072BInactive Publication Date: 2018-04-13SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2018-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of composite hydrogel, and discloses a modified hydrogel grafted with soybean protein by pineapple skin residue fiber, as well as its preparation method and application. The present invention extracts cellulose through pineapple pomace, then uses soybeans to separate out protein, then adds pineapple pomace cellulose and soybean protein isolate into a reaction vessel, oscillates and mixes evenly, then quickly adds ionic liquid, stirs and mixes, and seals to form Gel reaction, cooling, adding isopropanol aqueous solution for soaking, pouring off the soaking solution, adding distilled water to continue soaking, changing the water until the soaking solution does not contain ionic liquid, pre-freezing, vacuum freeze-drying, and obtaining a modified hydrogel. The modified hydrogel of the present invention forms a dense three-dimensional network structure due to the reaction of cellulose and soybean protein. The performance is strong, and the performance in terms of texture is superior, and it has potential applications in wound dressings and other aspects.
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Description

technical field

[0001] The invention belongs to the technical field of composite hydrogels, and in particular relates to a modified hydrogel of pineapple pomace fiber grafted with soybean protein and its preparation method and application. Background technique

[0002] Pineapple is a typical tropical fruit with characteristic flavor, which is widely planted in tropical regions. Most pineapple is processed into canned and preserved fruit, but its pomace accounts for 30-50% of the weight of the whole fruit. If it can be used well, it can not only achieve the purpose of high value, but also effectively solve the problem of annual processing of canned pineapple. The problem of environmental pollution caused by a large number of discarded peels. Therefore, the development of high-value deep processing and comprehensive utilization of pineapple by-products is an effective entry point to solve the problems in the current pineapple industry chain. Pineapple pomace is mainly compos...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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