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Method for extracting volatile oil and polyphenol from tsaoko fruit

A technology of volatile oil and tsaoguo, which is applied in the field of simultaneous extraction of volatile oil and polyphenols from tsaoguo fruit, can solve the problems of low oil extraction rate of volatile oil and low utilization rate of raw materials, and achieve the effect of increasing additional utilization value

Inactive Publication Date: 2015-10-14
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems that the oil extraction rate of tsaoko volatile oil is generally not high and the utilization rate of raw materials is low. 2 The process of extracting volatile oil and polyphenols from Tsaoguo fruit by fluid extraction method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 : After drying the Tsao Guo fruit at 40°C for 24 hours, crush it through a 50-mesh sieve with a pulverizer, weigh 60g of Tsao Guo powder and place it in the extraction tank of the supercritical fluid extraction device, tighten the seal of the extraction tank, and open the separation tank I Close the valve of separation tank II, use n-butanol as entrainer, set CO 2 The flow rate is 15g / min, the extraction pressure is 25MPa, the extraction temperature is 50°C, the extraction time is 90min, the flow rate of the entrainer is 0.75g / min, the extraction equipment is turned on, and the timing starts after each parameter reaches the set value and remains stable. When the set time is reached Take out the volatile oil extract from the separation tank Ⅰ; close the valve of the separation tank Ⅰ, open the valve of the separation tank Ⅱ, use ethanol aqueous solution with a mass percentage concentration of 60% as the entrainer, set CO 2 The flow rate is 10g / min, the extract...

Embodiment 2

[0023] Example 2: After drying the Tsao Guo fruit at 50°C for 18 hours, crush it through a 80-mesh sieve with a pulverizer, weigh 60g of Tsao Guo powder and place it in the extraction tank of the supercritical fluid extraction device, tighten the seal of the extraction tank, and open the separation tank I. Valve, close the valve of separation tank II, use n-hexane as entrainer, set CO 2 The flow rate is 25g / min, the extraction pressure is 30MPa, the extraction temperature is 60°C, the extraction time is 150min, the flow rate of the entrainer is 1.25g / min, the extraction equipment is turned on, and the timing starts after each parameter reaches the set value and remains stable. When the set time is reached Take out the volatile oil extract from the separation tank Ⅰ; close the valve of the separation tank Ⅰ, open the valve of the separation tank Ⅱ, use the ethanol aqueous solution with a mass percentage concentration of 50% as the entrainer, set CO 2 The flow rate is 15g / min,...

Embodiment 3

[0024] Example 3: After drying the Tsoko fruit at 70°C for 10 hours, crush it through a 60-mesh sieve with a pulverizer, weigh 60 g of Tsoko powder and place it in the extraction tank of the supercritical fluid extraction device, tighten the seal of the extraction tank, and open the separation tank I. Valve, close the valve of separation tank II, use n-hexanol as entrainer, set CO 2 The flow rate is 40g / min, the extraction pressure is 40MPa, the extraction temperature is 55°C, the extraction time is 180min, the flow rate of the entrainer is 2g / min, the extraction equipment is turned on, and the timing starts after each parameter reaches the set value and remains stable. Take out the volatile oil extract from the separation tank Ⅰ; close the valve of the separation tank Ⅰ, open the valve of the separation tank Ⅱ, use ethanol aqueous solution with a mass percentage concentration of 55% as the entrainer, and set CO 2 The flow rate is 25g / min, the extraction pressure is 20MPa, t...

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Abstract

The invention discloses a method for extracting volatile oil and polyphenol from a tsaoko fruit. The method utilizes a supercritical CO2 fluid extraction technology. The method comprises extracting volatile oil from fresh tsaoko fruit powder as a raw material by weak polar alcohol and alkane solvents as entrainers, and extracting polyphenol from the tsaoko fruit powder subjected to supercritical CO2 fluid extraction of volatile oil by a strong-polarity ethanol aqueous solution as an entrainer. Through control and adjustment of an extraction temperature, extraction pressure, CO2 flow, extraction time and entrainer flow, high-quality tsaoko fruit volatile oil and polyphenol extract are obtained. The method has a volatile oil extraction ratio of 6%. The extract has polyphenol content of 10.25%. The method solves the problem that other methods damage volatile oil quality and have low raw material utilization rates, improves a tsaoko fruit added economic value, has simple processes and is convenient for implementation.

Description

technical field [0001] The invention relates to an extraction technology of active ingredients in natural products, in particular to a method for simultaneously extracting volatile oil and polyphenols in Tsaoko fruit. Background technique [0002] Caoguo, also known as Caoguozi and Caoguo Kernel, is the dry and mature fruit of Caoguo, a plant of the genus Cardamom in the ginger family. It grows in subtropical rainy forest areas, mainly distributed in Guangxi, Yunnan, Guizhou, and parts of northern Vietnam and Laos. . Tsaoko has a special strong spicy aroma, which can remove fishy smell and increase appetite. It is a good product in cooking seasonings and is known as "one of the five spices" in food seasoning. In addition to being edible, Caoguo has high medicinal value. It has the functions of drying dampness and invigorating the spleen, warming the stomach and relieving pain, relieving vomiting and cutting off malaria. disease. [0003] Since the mid-1970s, most of the r...

Claims

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Application Information

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IPC IPC(8): B01D11/02C11B9/02C07G99/00C07D311/62
CPCY02P20/54
Inventor 顾丽莉万红焱刘文婷
Owner KUNMING UNIV OF SCI & TECH
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