Method for extracting vegetable tannin extract from dogberry kernels

A technology of Cornus officinalis and Cornus officinalis extract, applied in chemical instruments and methods, animal husbandry, applications, etc., can solve problems such as environmental pollution and waste of resources, and achieve the effects of reducing production costs, high conversion rate, and high product quality

Inactive Publication Date: 2010-05-05
RUANCHUAN CHUANGUAN VEGETABLE TANNIN EXTRACT
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Problems solved by technology

Year after year, not only a lot of resources a

Method used

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  • Method for extracting vegetable tannin extract from dogberry kernels
  • Method for extracting vegetable tannin extract from dogberry kernels

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Embodiment Construction

[0012] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0013] As shown in the figure, the dogwood fruit core is rinsed with clean water to remove sediment impurities and drained, and then squeezed into pieces with a pair of stick machines to make them 100% cracked and deformed. In order to facilitate the storage, extraction rate and cost accounting of plant raw materials, the raw materials are usually air-dried, and the moisture content is generally within 12%. Tests have proved that the raw materials must be completely broken, otherwise there will be no tannin leaching in water at 90°C for 24 hours. When broken, it is impossible to be absolutely dry (water-containing) and the kernel is oily because of the dogwood fruit core, and it is easy to bond into pieces when broken by other methods, and the efficiency is very low. Extrusion with a pair of sticks is the most ideal. Extrusion can not only break the tissue ...

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Abstract

The invention discloses a method for extracting vegetable tannin extract from dogberry kernels, which is implemented by collecting and cleaning dogberry kernels, removing impurities, draining, squeezing with a pair of rollers for smashing, extracting vegetable tannin extract liquid by extraction technique and concentrating (wherein feed liquid ratio is 1:4-5, extraction temperature is no higher than 90 DEG C, concentration of concentrated solution is 18-20 baume degrees, and temperature is 60-70 DEG C), and spray drying to obtain the dogberry tannin extract. Due to adopting discarded dogberry kernels as the raw material in tannin extract production, the invention solves the increasingly grave shortage of tannin extract raw material, provides a new raw material for tannin extract production, re-develops and re-utilizes the discarded dogberry kernels, thus avoiding wasting resources, mitigating environment pollution, and effectively reducing cost of tannin extract. The extraction technique adopted in the invention can effectively extract active ingredient of tannin in dogberry kernels and retain the pale color thereof. the invention has simple technique, high practicability, high product quality, wide application, and high conversion rate, and develops a new tannin extract variety---dogberry tannin, which has good quality and low price.

Description

technical field [0001] The invention belongs to the technical field of extracting tannin extracts, and mainly relates to a method for extracting tannin extracts from dogwood fruit stones. Background technique [0002] Tannin extract (Vegeteble tannin extract) is a mixture of compounds extracted from tannin-rich plant materials with tannin as the main active ingredient. It was originally discovered by seguin in 1796 because of its ability to turn raw hide into leather: Therefore, it is called vegetable tanning agent or tannin. Because the molecular weight of tannin extract is between 500-3000, its structure is complex, its chemical properties are lively, and it has extremely high biological activity. Now it is not only used for leather, but also used as a thinner and plugging agent for oil drilling mud, industrial gas wet desulfurization agent, boiler descaling, anti-scaling agent; mineral processing inhibitor, water purification treatment agent, battery cathode additive, me...

Claims

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Application Information

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IPC IPC(8): C09F1/00C14C3/12
Inventor 宋献忠宋献伟宋献宏刘辉
Owner RUANCHUAN CHUANGUAN VEGETABLE TANNIN EXTRACT
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