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A kind of hemp bast fiber extract with antibacterial activity, preparation method and application thereof

A bast fiber and extract technology, which is applied in the comprehensive utilization technology of hemp and textile application field, can solve the problem of less research on active substances, and achieve the effect of excellent antibacterial performance.

Inactive Publication Date: 2016-03-02
保琦蓓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As mentioned above, although a lot of research has been done on hemp, they mainly focus on the parts with high content of active ingredients such as leaves and seeds, while there are few studies on the active substances in the bast fibers of hemp plants that have textile value.

Method used

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  • A kind of hemp bast fiber extract with antibacterial activity, preparation method and application thereof
  • A kind of hemp bast fiber extract with antibacterial activity, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0052] Preparation Example 1: Silica gel adsorption column packing

[0053] Soak 200-300-mesh silica gel in chloroform and fully swell until it no longer swells, then pack the column and settle overnight to obtain a silica gel column.

[0054] Unless otherwise specified, the silica gel column used in all the following examples is the silica gel column packed in Preparation Example 1.

preparation example 2

[0055] Preparation Example 2: Silica gel adsorption column packing

[0056] 200-300 mesh silica gel was directly loaded into the column, and settled overnight to obtain a silica gel column, which was not fully swollen with chloroform.

Embodiment 1

[0058] (1) Washing the hemp bast fibers with water at room temperature to remove surface impurities and / or dirt, thereby obtaining clean hemp bast fibers.

[0059] (2) Vacuum-dry the clean hemp bast fiber at 40° C., and then shred it into small pieces with an area less than 1 cm×1 cm.

[0060] (3) Add ethanol that is 10 times the weight of the hemp bast fiber to the shredded hemp bast fiber, and stir and extract at 60°C for 4 hours. The extraction process can be carried out once or 2-4 times , after extraction, filter and collect the filtrate (when performing multiple times, each filtrate is combined).

[0061] (4) Use a rotary evaporator to concentrate the filtrate obtained in step (3) under reduced pressure, remove the solvent, and obtain the initial extract.

[0062] (5) Fully shake, dissolve, and suction filter the initial extract extract with a saturated NaCl aqueous solution to obtain an aqueous phase and undissolved solids; fully shake and dissolve the undissolved soli...

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Abstract

The invention relates to a hemp bast fiber extract, a preparation method and application hemp bast fiber extract. The preparation method comprises the following steps: (1) washing a raw material with water; (2) drying and cutting; (3) extracting with an organic solvent; (4) performing vacuum concentration to obtain a primary extract; (5) performing liquid-liquid extraction on the primary extract by using an inorganic solution and an organic solvent to obtain an extract; and (6) loading the extract in a silica gel chromatography column, eluting with the inorganic solvent, collecting an eluant, and performing vacuum concentration to obtain the hemp bast fiber extract. The hemp bast fiber extract has an excellent broad-spectrum antibacterial effect, and can be applied to processes of antibacterial finishing and the like of textiles as a natural antibacterial finishing agent. The hemp bast fiber extract, the preparation method and the application provided by the invention are very wide in industrial application value and market prospect.

Description

technical field [0001] The present invention relates to an extract, preparation method and use of plant fiber active ingredients, more particularly to a hemp bast fiber extract with antibacterial activity, preparation method and use, belonging to the comprehensive utilization technology of hemp and Textile applications. Background technique [0002] Industrial hemp (Cannabis Sativa L.) is a hemp plant of great economic value. Through genetic improvement of hemp, people have reduced its toxic components (THC content is less than 0.3%), and obtained a greener and safer Low Toxic Cannabis - Hemp. [0003] my country is the main producer of hemp, with planting areas in North China, Northwest China, East China, Central South and other regions. Its output accounts for about 1 / 3 of the world's hemp production, ranking first in the world. Abundant resource reserves provide strong support for the development of my country's hemp industry. [0004] Hemp is widely used in the contem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/00D06M15/00
Inventor 保琦蓓刘汉伟傅科杰张驰王春冯云杨力生劳华均任清庆
Owner 保琦蓓