Extraction method for sesame essential oil

A technology of essential oil and sesame, which is applied in the direction of essential oil/fragrance, fat production, etc., which can solve the problems of difficult control of the amount of flavor, low proportion of content, and low purity of the product, so as to achieve pure and strong fragrance, good quality and high purity high effect

Inactive Publication Date: 2006-09-06
QINGDAO UNIV
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when we use sesame oil as a condiment, we generally mix the flavors contained in sesame or called essential oil essence (also known as essential oil) and the contained oil together and extract it from sesame seeds by pressing, so as to really play a role in seasoning. The proportion of the essential oil components used in this

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Take 7,000 grams of natural high-quality sesame seeds, wash them three times with clean water, and remove the granular dust, then bake them in a common oven at 300°C for 40 minutes, and then use a crusher to break the baked sesame seeds into half Flake or one-third flake sesame powder; evenly fill the sesame powder in a 24-liter extraction kettle of a supercritical extraction device (the device is equipped with a secondary collection kettle), control the pressure of the extraction kettle to 18MPa, and the temperature to 50°C. The pressure of the collection tank I is 8MPa, the temperature is 30°C, the pressure of the collection tank II is 6MPa, and the temperature is 25°C, and the extraction and collection are carried out in a conventional operation. When CO 2 When the cumulative circulation flow reaches 294 liters, the extraction is stopped, and the extracts in the two-stage collection kettle are collected and mixed to obtain 133 grams of sesame essential oil product, wh...

Embodiment 2

[0011] Take 1500 grams of natural sesame, wash it three times with water, bake it at 300°C for 40 minutes, crush it into a half-sheet or one-third sheet, fill it in a 5-liter extraction kettle of a supercritical extraction device, and control the extraction kettle The pressure is 22MPa, the temperature is 70°C, the pressure of the collecting tank I is 7.5MPa, the temperature is 35°C, the pressure of the collecting kettle II is 5.8MPa, and the temperature is 28°C, extraction and collection are carried out, when CO 2 When the accumulated circulation flow is 65 liters, the extraction is stopped, and the collections of the collection kettle I and the collection kettle II are combined to obtain 32 grams of sesame essential oil product, which meets the standard after testing.

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PUM

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Abstract

The invention relates to a method for extracting essential oil of sesame and especially to a process for extracting volatile essential oil of sesame from natural sesame kernel adopting routine supercritical carbon dioxide extraction apparatus. The process consists of first cleaning the natural sesame kernel, removing the sand dust impurity and the surface impurity to obtain the pure sesame kernel, then bruising or comminuting the baked sesame kernel to half-sheet sesame powder, afterwards, placing the sesame powder into the supercritical carbon dioxide extraction kettle, controlling the abstraction pressure, temperature, carbon dioxide flux and abstraction time for extraction and separation, at the same time, in different pressure and temperature conditions, respectively collecting two-step extractants containing different components and volatility adopting two-step collecting kettle, then obtaining the essential oil of sesame by mixing the extractants collected by two-step collecting kettle. The process of this method is simple, safe and reliable, is of high yield rate and good quality, and can not destroy the edibility of the sesamin grease.

Description

Technical field: [0001] The invention relates to a process for extracting and separating natural essential oils used in the field of seasoning food prepared by supercritical extraction using natural sesame seeds as raw materials, in particular to a method for extracting and preparing sesame essential oils. technical background: [0002] Sesame is a natural edible oil product. The oily components in sesame have high nutritional value, and its usual oil content is between 30% and 50%. People usually refer to sesame oil as sesame oil. This is mainly due to the higher flavoring elements contained in sesame oil. When people eat sesame oil, they mainly use the aroma to adjust the fragrance and mouthfeel of food. At present, when we use sesame oil as a condiment, we generally mix the flavors contained in sesame or called essential oil essence (also known as essential oil) and the contained oil together and extract it from sesame seeds by pressing, so as to really play a role in s...

Claims

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Application Information

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IPC IPC(8): C11B9/00
Inventor 隋晓徐公世张旗李禹成丛培珊冯静
Owner QINGDAO UNIV
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