Mulberry branch separated bark and rods and their preparation method and use

Abstract

The invention discloses mulberry branch separated bark and rods and their preparation method and use. The preparation method comprises a, preparation of raw materials, b, two-step decoction, c, decoction concentration and drying, d, separation of bark and rods in the decoction, e, separation of skin, green skin and phloem of bark, f, preparation of a crude pectin product and phloem fibers from thephloem, and g, preparation of stem fibers from the rods. The preparation method realizes preparation of mulberry branch extract from the decoction, full separation of the bark and rods of mulberry branches, full separation of skin, green skin and phloem of bark, preparation of a crude pectin product and phloem fibers from the phloem and preparation of stem fibers from the separated rods, really realizes comprehensive and flow-line extraction of pectin, phloem fibers and stem fibers of mulberry branches, fully utilizes values of mulberry branches, improves the use rate and the use value of themulberry branches, realizes the comprehensive utilization of wastes and protects the environment.

Description

technical field [0001] The invention relates to the technical field of preparation of mulberry branch extract, pectin, bast fiber and stem fiber, in particular to a method for separating skin material and rod material by using mulberry branch, a preparation method and an application. Background technique [0002] Mulberry branches are branches cut from mulberry trees to obtain good mulberry leaves for silkworm rearing. Mulberry branches are widely used, and the whole body is a treasure. It is not only a high-quality fiber raw material, but also a traditional Chinese medicinal material. The mulberry bark can be divided into epidermis, green bark, and bast. The bast is white, flexible, slender and strong, and the mulberry bark is white in color and has little pith. [0003] Mulberry branch is a by-product of sericulture. In my country, mulberry planting and sericulture have a long history, and the scope of planting mulberry is very wide, and the mulberry branch resource is ext...

AI Technical Summary

Problems solved by technology

Last year, according to the statistics of the National Cocoon Silk Office, the area of ​​mulberry gardens in my country reached 11.8951 million mu. In addition to the mulberry leaves used to raise silkworms, the output of mulberry branches pruned from mulberry trees in winter and summer can reach more than 30 million tons. However, mulberry The utilization rate of branches is extremely low, about 10%

More than 20 million tons of mulberry branches are burned as waste by ordinary people (sericulture practitioners) as household fuel, or discarded on the spot in the field to rot under the action of natural conditions, or burned on the spot, resulting in a great waste of resources and pollute the environment

But later, the production practice found that although the skin (bast) and the rod were completely separated during the separation process of the skin and rod, the skin (bast) and the rod were separated, but there was still the disadvantage of excessive degumming, which damaged the toughness. Skin fiber structure, the epidermis, green skin, and bast are not completely separated and separated, but are intertwined with each other. Even the separated epidermis and green skin also contain a small part of bast, and there is also part of the epidermis in the bast. The green skin is difficult to remove. Biological pulping method, APMP or extrusion mechanical method, the products produced have black and small skin, many green skins, and cannot meet the quality requirements, and the market does not accept this product

At the same time, when the bast is pulped, a large amount of pectin contained in the bast dissolves into the wastewater, which increases the difficulty and cost of wastewater treatment

Therefore, its industrialization is limited