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Method for extracting tartary buckwheat seeds by using supercritical CO2

A kind of tartary buckwheat seed, supercritical technology, applied in the direction of producing fat, fat oil/fat production, etc., to achieve the effect of simple process, safe use and convenient operation

Inactive Publication Date: 2013-03-27
山西五台山沙棘制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a supercritical CO 2 Method for extracting tartary buckwheat seeds

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A supercritical CO 2 The method for extracting tartary buckwheat seeds comprises the following steps: a. Drying and pulverizing the tartary buckwheat seeds and putting them into an extraction kettle, drying the tartary buckwheat seeds in an oven at a temperature lower than 80°C for 1.5 hours, after drying The tartary buckwheat seed moisture content is 4%, then pulverizes and crosses 40 mesh sieves; B, the CO of supercritical state 2 The fluid is injected into the extraction kettle, at a temperature of 45°C, a pressure of 1.2Mpa, CO 2 Under the condition of flow rate of 0.10L / min, extract for 3.5 hours; c, the CO dissolved with tartary buckwheat plant extract 2 The fluid enters the separation kettle, and the temperature is adjusted to 48°C, the pressure is 2.0MpaMpa, and the tartary buckwheat seed plant extract is separated, and the CO 2 The gas is compressed and enters the extraction tank for recycling. The tartary buckwheat seed cellulose content in the tartary buck...

Embodiment 2

[0030] A supercritical CO 2 The method for extracting tartary buckwheat seeds comprises the following steps: a. Drying and pulverizing tartary buckwheat seeds and putting them into an extraction kettle, drying tartary buckwheat seeds in an oven at a temperature lower than 80°C for 2 hours, and drying The moisture content of tartary buckwheat seeds is 10%, and then crushed through a 40 mesh sieve; b, the CO in the supercritical state 2 The fluid is injected into the extraction kettle, at a temperature of 55°C, a pressure of 2.0Mpa, CO 2 Under the condition of flow rate of 0.15L / min, extract for 4.5 hours; c, the CO dissolved with tartary buckwheat plant extract 2 The fluid enters the separation kettle, and the temperature is adjusted to 60°C and the pressure is 3.0Mpa to separate the tartary buckwheat seed plant extract, and the CO 2 The gas is compressed and enters the extraction tank for recycling. The tartary buckwheat seed cellulose content in the tartary buckwheat seed ...

Embodiment 3

[0032] A supercritical CO 2 The method for extracting tartary buckwheat seeds comprises the following steps: a. Drying and pulverizing tartary buckwheat seeds and putting them into an extraction kettle, drying tartary buckwheat seeds in an oven at a temperature lower than 80°C for 2 hours, and drying The moisture content of tartary buckwheat seeds is 6%, and then crushed through a 40 mesh sieve; b, the CO in the supercritical state 2 The fluid is injected into the extraction kettle, at a temperature of 45°C, a pressure of 1.5Mpa, CO 2 Under the condition that the flow rate is 0.12L / min, extract for 4.0 hours; c, the CO dissolved with tartary buckwheat plant extract 2 The fluid enters the separation kettle, and the temperature is adjusted to 55°C and the pressure is 2.5Mpa to separate the tartary buckwheat seed plant extract, CO 2 The gas is compressed and enters the extraction tank for recycling. The tartary buckwheat seed cellulose content in the tartary buckwheat seed pla...

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PUM

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Abstract

The invention relates to an extraction technoloty of plant extractives, and particularly relates to a method for extracting tartary buckwheat seeds by using supercritical CO2, which solves different problems existing in the tradtional extraction method using an expression method or a solvent lixiviation method. The method comprises the following steps of: a, drying and pulverizing the tartary buckwheat seeds and then placing in an extraction kettle; b, injecting a supercritical-state CO2 fluid to the extraction kettle, and extracting for 3.5-4.5 hours at the temperature of 45-55 DEG C, the pressure of 1.2-2.0 Mpa and the CO2 flowing speed of 0.10-0.15 L / min; and c, making the CO2 fluid with a tartary buckwheat seed extractive enter a separation kettle, regulating the temperature to 48-60 DEG C and the pressure to 2.0-3.0 Mpa, separating the tartary buckwheat seed extractive out, and then making compressed CO2 enter the extractive kettle for recycling. The method has the advantages of simple process, convenience in operation, improvement of production efficiency, obvious extraction effect, safety, environmental protection, thermosensitive and active matter protection, energy conservation and the like, the content of cellulose in the plate extractive is about 1.6%, the biological activity content of a product is furthest preserved, and the extractive has high purity.

Description

technical field [0001] The present invention relates to a plant extract extraction technology, in particular to a supercritical CO 2 A method for extracting tartary buckwheat seeds. Background technique [0002] Tartary buckwheat seeds are rare medicinal and edible crops in nature. According to the "Compendium of Materia Medica" records: tartary buckwheat is bitter in taste and cold in nature. Tartary buckwheat is recorded in "Qian Jin Yao Fang", "Dictionary of Chinese Medicine" and related documents: it can soothe the nerves, activate qi and blood, lower qi and widen the intestines, clear away heat, swelling and pain, dispel stagnation, clear the intestines, moisten the intestines, Laxative, cough, asthma, anti-inflammatory, anti-allergic, cardiotonic, weight loss, beauty and other effects. [0003] Tartary buckwheat seeds are rich in cellulose, also known as dietary fiber, which has a good effect of rectifying bowel movements and removing toxins from the body, and is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10
Inventor 赵志侃
Owner 山西五台山沙棘制品有限公司