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Method for producing plant dye by high efficiency solid state fermentation of leaves of polygonum tinctorium

A technology of solid-state fermentation and plant dyes, applied in the direction of azo dyes, organic dyes, natural dyes, etc., can solve the problems of manual care, difficult control of temperature and humidity, and difficult quality assurance of dry fermentation methods, so as to shorten the fermentation period and avoid Potential waste water pollution, the effect of controllable production quality

Active Publication Date: 2018-12-07
苏州麻朵纺织科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, a large area of ​​drying place is required, and manual care is required.
Moreover, the temperature and humidity of the fermentation process are also difficult to control, and the quality of the dry fermentation method is difficult to guarantee. The dry fermentation method is gradually eliminated in China

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Production of plant dyes by high-efficiency solid-state fermentation of Polygonum vulgare leaves

[0026] Choose a sunny day and harvest the mature Polygonum indica at the right time before the inflorescence. The whole plant should be harvested at a height of more than 3cm from the ground. Pay attention to keeping the roots during harvesting so that the indigo can continue to grow. The harvested whole plant of Polygonum indica is separated from the stems and leaves, and the separated leaves of Polygonum indica are immediately put into a microwave curing machine for curing. The dried Polygonum blue leaves are naturally dried. After pulverizing the dried blue-black Polygonum blue leaves, the fermentation promoter LB is added. The fermentation promoter LB is formulated into a 3% aqueous solution, and then evenly sprayed on the polygonum blue leaves to make the polygonum The moisture content of blue leaves is 65%.

[0027] Put the Polygonum vulgare leaves containing ...

Embodiment 2

[0029] Example 2: Production of vegetable dyes by high-efficiency solid-state fermentation of Polygonum vulgare leaves

[0030] Choose a sunny day, use the second crop of Polygonum, harvest mature Polygonum in a timely manner before it blooms, and harvest the whole plant at a height of 3cm or more from the ground. Pay attention to keeping roots when harvesting, so that Polygonum can continue to grow. The harvested whole plant of Polygonum indica is separated from the stems and leaves, and the separated leaves of Polygonum indica are immediately put into a microwave curing machine for curing. The dried Polygonum blue leaves are naturally dried. After pulverizing the dried blue-black Polygonum blue leaves, the fermentation promoter LB is added. The fermentation promoter LB is formulated into a 5% aqueous solution, and then evenly sprayed on the polygonum blue leaves to make the polygonum The moisture content of blue leaves is 65%.

[0031] Put the Polygonum vulgare leaves containing...

Embodiment 3

[0033] Example 3: Production of vegetable dyes by high-efficiency solid-state fermentation of Polygonum vulgare leaves

[0034] Choose a sunny day and harvest the mature Polygonum indica at the right time before the inflorescence. The whole plant should be harvested at a height of more than 3cm from the ground. Pay attention to keeping the roots during harvesting so that the indigo can continue to grow. The harvested whole plant of Polygonum indica is separated from the stems and leaves, and the separated leaves of Polygonum indica are immediately put into a microwave curing machine for curing. The dried Polygonum blue leaves are naturally dried. After pulverizing the dried blue-black Polygonum blue leaves, the fermentation promoter LB is added. The fermentation promoter LB is formulated into a 2% aqueous solution, and then sprayed evenly on the polygonum blue leaves to make the polygonum The water content of blue leaves is 60%.

[0035] Put the Polygonum vulgare leaves containing...

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Abstract

A method for producing plant dye by high efficiency solid state fermentation of leaves of polygonum tinctorium includes the following steps: placing the leaves of polygonum tinctorium with separationof stalk and leaves into a microwave green color removing machine for removing green color; naturally drying the leaves of polygonum tinctorium, and uniformly spraying a fermentation accelerant on thesurface of the leaves of polygonum tinctorium; placing the leaves of polygonum tinctorium in a pulse solid state fermentation reactor, first subjecting to anaerobic fermentation, and opening pressurepulse and injecting damp air when the temperature is naturally raised to 40-60 DEG C, wherein the air humidity is 65%-90%, a pulse peak value is 0.2-0.3 MPa, a pulse valley value is 0.05-0.15 Mpa, apulse period is 30-120 minutes, and performing fermentation until the temperature is not raised by itself; and then drying the leaves by a microwave dryer. According to the method, the green color isquickly removed by the microwave, and the leaves of polygonum tinctorium after microwave green color removing can be naturally dried without requirement for climate and sites. At the same time, the fermentation accelerant is sprayed on the leaves of polygonum tinctorium before fermentation, and so, the fermentation period can be shortened, the pigment content is improved; and the pulse solid statefermentation reactor is cooperatively utilized, and therefore, the fermentation time can be greatly shortened, and the fermentation quality can be controlled. In a whole production process, no wateris discharge, and the method is environmentally friendly.

Description

Technical field [0001] The invention relates to the fields of natural plant extraction and microbial fermentation, in particular to a method for producing plant dyes by high-efficiency solid-state fermentation of polygonum blue leaves. Background technique [0002] The production of chemical dyes is a highly polluting industry, which involves the pollution of the entire industrial chain. Chemical dyes are derived from petroleum. The production of chemical dye intermediates such as H acid is very polluting to the environment. Developed countries no longer produce chemical dye intermediates. At the same time, the process of synthesizing chemical dyes from chemical dye intermediates is also highly polluting. , High carbon emissions. Plant dyes originate from planting, and the process of planting absorbs carbon dioxide to carry out photosynthesis. This is the opposite process of carbon dioxide emission from chemical dye production, so plant dyes are more low-carbon and environmental...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/54
CPCC09B61/00C09B67/0096
Inventor 邱平
Owner 苏州麻朵纺织科技有限公司
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