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Peony seed oil, high-purity alpha-linolenic acid microcapsule and co-production method thereof

A technology of peony seed oil and linolenic acid, which is applied in the direction of microcapsule preparation, fat oil/fat production, fat production, etc., can solve the problems of cost increase, environmental pollution, cumbersome process, etc., to prevent oxidation, expand the application range, and extend the shelf life Effect

Inactive Publication Date: 2016-03-23
中科田园(北京)农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional extraction of α-linolenic acid is to obtain oil by pressing / extracting the seeds. The oil is completed through a large number of alkali saponification, acidification, and purification steps. The process is cumbersome, and the acid and alkali cause environmental pollution and increase the cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Put 1000KG peony seeds into the subcritical extraction system, add 1000L butane, the extraction pressure is 0.9Mpa, the extraction temperature is 49°C, and the extraction time is 5 hours; after the extraction, the liquid phase is decompressed to -0.1Mpa, and the temperature is raised to 30 ℃, butane was removed and recovered to obtain 240KG peony seed raw material oil; the oil was degummed, dehydrated, decolorized, and dewaxed according to conventional methods, and then poured into the still, and the vacuum pump was turned on to make the pressure in the still reach -0.09Mpa, and the temperature was raised to 180 Keep at ℃ for 2 hours. After distillation, 168KG of first-grade peony seed oil is obtained, and the distillation effluent is 72KG of low-concentration α-linolenic acid; put the low-concentration α-linolenic acid into the freezer, stir and add 72L of absolute ethanol, Cool down to -5°C, keep it for 24 hours, centrifugally filter, vacuum remove and recover ethanol ...

Embodiment 2

[0034] Put 1000KG peony seeds into the subcritical extraction system, add 10000L butane, the extraction pressure is 0.9Mpa, the extraction temperature is 20°C, and the extraction time is 1.5 hours; after the extraction, the liquid phase is decompressed to -0.09Mpa, and the temperature is raised to 40 ℃, remove the butane and recover it to obtain 220KG peony seed raw material oil; degumming, dehydrating, decoloring, dewaxing the oil according to the conventional method, put it into the distillation kettle, turn on the vacuum pump to make the pressure in the kettle reach -0.09Mpa, and raise the temperature to 270 Keep at ℃ for 8 hours. After distillation, 176KG of first-grade peony seed oil is obtained, and the distillation effluent is 44KG of low-concentration α-linolenic acid; put the low-concentration α-linolenic acid into the freezer, stir and add 880L of 50% ethanol, Cool down to -5°C, keep it for 1 hour, centrifugal filter, vacuum remove and recover ethanol to obtain 23kg o...

Embodiment 3

[0036]Put 1000KG peony seeds into the subcritical extraction system, add 5000L butane, the extraction pressure is 0.9Mpa, the extraction temperature is 30°C, and the extraction time is 2 hours; after the extraction, the liquid phase is decompressed to -0.09Mpa, and the temperature is raised to 60 ℃, butane was removed and recovered to obtain 230KG peony seed raw material oil; the oil was degummed, dehydrated, decolorized, and dewaxed according to conventional methods, and then poured into the still, and the vacuum pump was turned on to make the pressure in the still reach -0.09Mpa, and the temperature was raised to 240 Keep at ℃ for 4 hours. After distillation, 190KG of first-grade peony seed oil is obtained, and the distillation effluent is 40KG of low-concentration α-linolenic acid; put the low-concentration α-linolenic acid into a freezing kettle, stir and add 200L of 75% ethanol, Cool down to -5°C, keep it for 12 hours, centrifugally filter, vacuum remove and recover ethano...

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Abstract

The invention relates to peony seed oil, a high-purity alpha-linolenic acid microcapsule and a co-production method thereof. The co-production method of the peony seed oil and the high-purity alpha-linolenic acid microcapsule comprises the following steps: carrying out subcritical low-temperature extraction on peony seeds; refining oil and fat; separating out fatty acid; purifying the fatty acid; and carrying out microencapsulation to obtain a high-purity peony seed oil alpha-linolenic acid microcapsule product, wherein alpha-linolenic acid accounts for 80% or more of the total fat. According to the method provided by the invention, hydrolyzed free fatty acid in the peony seeds is fully separated out and is further purified to obtain high-purity alpha-linolenic acid, and then the high-purity alpha-linolenic acid is subjected to microencapsulation for protection, preventing oxidation and facilitating use; meanwhile, the refining loss of the oil and fat is reduced, and the refining yield of the oil and fat is improved. The method provided by the invention is simple in step, reduces the oil and fat loss, greatly reduces the production cost, and is beneficial for industrial production.

Description

technical field [0001] The invention relates to peony seed extraction technology, in particular to peony seed oil, high-purity α-linolenic acid microcapsules and a co-production method thereof. Background technique [0002] Peony seeds contain about 24% oil, and the content of α-linolenic acid is as high as 44%. However, when the peony seeds are harvested and dried, the oil is hydrolyzed to produce a large amount of free fatty acids, and the acid value is generally 30-40KOHmg / g or even higher. Cause a large amount of saponins to be produced in the refining process and the yield is low. [0003] At present, in the process of industrial production of peony seed oil, the free fatty acids in the oil are removed through alkali refining. The alkali refining is to calculate the amount of NaOH added according to the acid value. The calculation method is: [0004] Amount of alkali added (KG) = oil weight (ton) × acid value × 0.713 [0005] In the process of alkali refining, free fa...

Claims

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Application Information

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IPC IPC(8): B01J13/02C11B1/10C11B3/12
CPCB01J13/02C11B1/10C11B3/001C11B3/12
Inventor 朱彩梅王小锋李胜美
Owner 中科田园(北京)农业科技有限公司
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