Method for extracting semen nigellae oil by using supercritical carbon dioxide

A kind of Nigella sativa, supercritical technology, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of poor quality of Nigella sativa oil and much destruction of active substances, and achieves short extraction time, strong repeatability, and easy operation. Effect

Inactive Publication Date: 2010-07-21
NANJING AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0005] Technical Problem The purpose of the present invention is to provide a supercritical CO 2 The method for extracting black cumin seed oil solves the disadvantages of extracting black cumin seed oil in the prior art that the active substances are much destroyed and the quality of the black cumin seed oil is poor

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  • Method for extracting semen nigellae oil by using supercritical carbon dioxide
  • Method for extracting semen nigellae oil by using supercritical carbon dioxide
  • Method for extracting semen nigellae oil by using supercritical carbon dioxide

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Embodiment

[0027] Supercritical CO 2 The method of extracting the black seed oil of "tumor fruit nigella" is as follows:

[0028] (1) Raw material: mature nigella seeds, purity ≥99%;

[0029] (2) Drying: Dry the nigella seeds naturally or in an electric heating constant temperature blast drying box at 40°C, with a water content of about 6%;

[0030] (3) Crushing: Use a high-speed crusher to crush the nigella seeds, sieving (40 mesh) for use;

[0031] (4) Supercritical CO 2 Extraction: Put the crushed Nigella sativa sample into supercritical CO 2 In the extraction kettle of the extraction device (HA121-50-01 supercritical extraction device, produced by Jiangsu Nantong Huaan Supercritical Extraction Co., Ltd.), the extraction temperature is adjusted to 40.15°C, the extraction pressure is 29.20Mpa, and CO 2 The flow rate is 21.92L / h, the extraction time is 100min, the separation I pressure is 7-8MPa, the temperature is 45°C, the separation II pressure is 4-6MPa, and the temperature is 35°C. After t...

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Abstract

The invention relates to a method for extracting semen nigellae oil by using supercritical CO2, belonging to the field of food processing and specially used for comprehensive development and deep processing of semen nigellae. Taking semen nigellae (Semen Nigellae) as a raw material, the method comprises the following process steps: semen nigellae (Semen Nigellae) is dried and crushed and is extracted by supercritical CO2, and the optimal process parameters areas follows: the extraction pressure is 29.20 MPa, the extraction temperature is 40.15 DEG C and a CO2 flow is 21.92 L/h. The semen nigellae oil extracted under the conditions has the purity of above 99 percent and the maximum extraction yield of 37.897 percent. The process for extracting the semen nigellae oil by using the supercritical CO2 provides a new method for deep processing of the semen nigellae and can efficiently carry out research on extracting the semen nigellae oil by the supercritical CO2. The invention has the advantages of strong operability, favorable safety, higher yield, favorable repeatability, high extraction efficiency, simple process, high product purity, non pollution and the like and can be used for extracting the semen nigellae oil in production.

Description

1. Technical Field [0001] The present invention relates to supercritical CO 2 The method for extracting nigella seed oil belongs to the field of food processing and is dedicated to the extraction of nigella seed oil. 2. Background technology [0002] Nigella is a plant of the genus Nigella in the Ranunculaceae family, and its medicinal parts are generally seeds. There are currently three species used for medicinal purposes, namely Nigella sative Linn., also known as Nigella nigra; Nigella glandulifera Preyn et Sint., also known as Nigella glandulifera; And Nigelladamascena L.. Nigella glandulifera Preyn et Sint (Nigella glandulifera Preyn et Sint) is an annual herb, mainly distributed in Turpan, Hami, Shanshan and other places in Xinjiang. It is also planted in the Soviet Union, Iran, Afghanistan, Pakistan, and Egypt. The whole plant of Nigella nigra can be used as medicine, but the seeds are the main medicinal materials, and the seeds are almost completely used for food and me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10
Inventor 侯喜林张君萍
Owner NANJING AGRICULTURAL UNIVERSITY
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