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Method for extracting pomelo fruit essential oil and naringin through continuous phase transition

A technology of naringin and extraction, which is applied in chemical instruments and methods, preparation of essential oils/flavors, sugar derivatives, etc., can solve the problems of hot water extraction method with many impurities, non-recyclable production process, and large solvent consumption, etc., to achieve The solvent extraction volume is large, the solvent can be recycled, and the effect of no solvent residue

Active Publication Date: 2018-12-21
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The alcohol extraction method consumes a lot of solvent, takes a long time, and the extraction rate is low; the hot water extraction method has more impurities, the steps are complicated, and the application is less; Pollution, non-recyclable production processes, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: a kind of method of continuous phase change continuous extraction pomelo essential oil and naringin, comprises the following steps:

[0034] (1) Crush the dried pomelo granules that have been selected and removed from impurities to 20 meshes, and dry them at a temperature of 50°C to control the water content to ≤15%, so as to obtain pomelo raw materials.

[0035] (2) Weigh 10kg of the processed pomelo fruit raw material, put it into the extraction kettle of the continuous phase change extraction device, open the access switch, discharge the air in the system, and slowly introduce 25L of n-butane. Under the condition of extraction pressure of 1Mpa, it flows into the extraction kettle at a flow rate of 120L / h, and the continuous extraction time is 60min. After the pomelo fruit essential oil is extracted, it flows into the analysis kettle. , decompression to vaporize and separate the n-butane, collect it into the n-butane storage tank, and then liquefy it int...

Embodiment 2

[0037] Embodiment 2: a kind of method of continuous phase change continuous extraction pomelo essential oil and naringin, comprises the following steps:

[0038] (1) Grinding the dried pomelo granules after removing impurities to 40 mesh, drying at 40°C, and controlling the moisture content to ≤15%, to obtain pomelo raw materials.

[0039] (2) Weigh 10kg of the treated pomelo fruit raw material, put it into the extraction kettle of the continuous phase change extraction device, open the access switch, discharge the air in the system, slowly introduce 30L of n-butane, and extract at an extraction temperature of 40°C, Under the condition of extraction pressure of 1Mpa, it flows into the extraction kettle at a flow rate of 150L / h, and the continuous extraction time is 80min. After extracting the essential oil of pomelo fruit, it flows into the analysis kettle. , decompression to vaporize and separate the n-butane, collect it into the n-butane storage tank, and then liquefy it int...

Embodiment 3

[0041] Embodiment 3: a kind of method of continuous phase change continuous extraction pomelo essential oil and naringin, comprises the following steps:

[0042] (1) Grinding the dried pomelo granules after removing impurities to 60 mesh, drying at 50°C, and controlling the moisture content to ≤15%, to obtain pomelo raw materials.

[0043] (2) Weigh 10kg of the processed pomelo fruit raw material, put it into the extraction kettle of the continuous phase change extraction device, open the access switch, discharge the air in the system, and slowly introduce 25L isobutane (R600a), at the extraction temperature Under the conditions of 50°C and extraction pressure of 0.6Mpa, it circulates into the extraction kettle at a flow rate of 100L / h, and the continuous extraction time is 80min. After extracting the essential oil of pomelo fruit, it flows into the desorption kettle. The extractant is vaporized and separated from isobutane (R600a) by heating and depressurizing, and flows into...

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Abstract

The invention provides a method for continuously extracting pomelo fruit essential oil and naringin through continuous phase transition. The method comprises the following steps: extracting a pomelo fruit raw material after drying and smashing in conditions that an extracting temperature is 30-90 DEG C, a pressure is 0.3-1.8 Mpa, an extraction agent flow rate is 40-180 L / h, extraction time is 30-240 minutes, a separate temperature is 40-90 DEG C, and a separate pressure is 0.1-0.8 Mpa, to obtain the pomelo fruit essential oil through the continuous phase transition, and extracting the naringinin the conditions that the extracting temperature is 30-95 DEG C, the pressure is 0.1-1.5 Mpa, the extraction agent flow rate is 20-150 L / h, the extraction time is 2-18 hours, the separate temperature is 40-90 DEG C, and the separate pressure is 0.1-1 Mpa. The method is capable of extracting by using a continuous phase transition technology, high in extraction purity, safe, environmentally friendly, low in cost, and suitable for large-scale industrialized production.

Description

technical field [0001] The invention belongs to the technical field of vegetable oil and flavonoid extraction, in particular to a method for extracting pomelo essential oil and naringin. Background technique [0002] Pomelo fruit is the dry immature fruit of Citrus grandis Osbeck in Rutaceae (Auramtioideae) Citrus subfamily (Auramtioideae), also known as Zhuyi, Leiyou, Qigan, Wendan, etc. One of the oldest species. Pomelo fruit is huge and rich in nutrition. Modern medical research and biochemical analysis have proved that pomelo fruit contains a variety of essential nutrients for human health, and contains a variety of non-nutritional physiological substances that can promote human health and prevent and treat some diseases. Active ingredients, that is, plant active ingredients, such as essential oils, naringin, limonin analogues, pectin and other ingredients, of which the content of naringin in pomelo fruits from March to April is as high as 20%-30%, which has a great Hi...

Claims

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Application Information

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IPC IPC(8): C11B9/02C07H17/07C07H1/08
CPCC07H1/08C07H17/07C11B9/025
Inventor 曹庸侯韬陈彤戴伟杰
Owner SOUTH CHINA AGRI UNIV
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