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Tea oil extraction method

A technology for camellia oil and camellia oleifera, applied in the field of extracting camellia oil, can solve the problems of high equipment precision, high operating cost, low yield and the like, and achieve the effects of simple process, high total oil yield and high use value.

Inactive Publication Date: 2018-05-22
丁晓红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operating conditions of supercritical fluid are relatively harsh, requiring high precision equipment and high operating costs
The water substitution method for extracting tea oil has simple equipment and low cost. At the same time, water is used as a solvent to avoid the use of organic solvents, but the yield is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Camellia oleifera seeds are cleaned, dehulled, ground into powder, and passed through a 140-mesh sieve. Tea oil powder and water are mixed at a mass volume ratio of 1:4, and hydrochloric acid is added to adjust the pH to 3 under the condition of a water bath at 50°C, and pectinase and cellulase are added for enzymolysis for 60 minutes, wherein the added pectinase and water have a mass ratio of 0.17:100 Volume ratio, the added cellulase and water form a mass volume ratio of 0.43:100. Add sodium hydroxide to adjust the pH to 6, add bromelain to hydrolyze for 120 minutes, and add bromelain to water at a mass volume ratio of 0.5:100. Centrifuge the tea seed powder solution after extraction at 5000 rpm to obtain the supernatant oil, centrifuge the middle emulsion to obtain the supernatant oil, combine the supernatant oils to obtain the total oil, and the extraction rate of the total oil is 94.5%.

Embodiment 2

[0020] Camellia oleifera seeds are cleaned, dehulled, ground into powder, and passed through a 150-mesh sieve. Tea oil powder and water are mixed at a mass volume ratio of 1:4, and hydrochloric acid is added to adjust the pH to 3.5 in a water bath at 52°C, and pectinase and cellulase are added for enzymolysis for 60 minutes, wherein the added pectinase and water have a mass ratio of 0.2:100 Volume ratio, the added cellulase and water have a mass volume ratio of 0.5:100. Add sodium hydroxide to adjust the pH to 7, add bromelain to hydrolyze for 120 minutes, and add bromelain to water at a mass volume ratio of 0.7:100. Centrifuge the tea seed powder solution after extraction at 6000 rpm to obtain the supernatant oil, centrifuge the middle emulsion to obtain the supernatant oil, combine the supernatant oils to obtain the total oil, and the extraction rate of the total oil is 94.8%.

Embodiment 3

[0022] Camellia oleifera seeds are cleaned, dehulled, ground into powder, and passed through a 160-mesh sieve. Tea oil powder and water were mixed at a mass volume ratio of 1:4, and hydrochloric acid was added to adjust the pH to 5 under the condition of a water bath at 55°C, and pectinase and cellulase were added for enzymolysis for 60 minutes, wherein the added pectinase and water had a mass ratio of 0.25:100 Volume ratio, the added cellulase and water form a mass volume ratio of 0.55:100. Sodium hydroxide was added to adjust the pH to 8, and bromelain was added for enzymolysis for 120 minutes, wherein the added bromelain and water had a mass volume ratio of 0.8:100. Centrifuge the tea seed powder solution after extraction at 7000 rpm to obtain the supernatant oil, centrifuge the middle emulsion to obtain the supernatant oil, combine the supernatant oils to obtain the total oil, and the extraction rate of the total oil is 95.6%.

[0023] The process for extracting the camel...

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PUM

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Abstract

The invention discloses a tea oil extraction method. The method comprises the following steps: at first, cleaning camellia seeds, removing impurities from camellia seeds, shelling camellia seeds, grinding camellia seeds, sieving camellia seeds to obtain camellia seed powder; adding water to dissolve camellia seed powder, adjusting the pH to 3-5 by adding hydrochloric acid under a water bath condition, adding pectase and cellulase to carry out enzymatic hydrolysis, adjusting the pH to 6-8 by adding sodium hydroxide, adding bromelain to carry out enzymatic hydrolysis, and finally carrying out centrifugal separation to obtain tea oil. The tea oil extraction oil is simple, the total oil yield is high, the obtained tea oil does not contain any organic solvent, the effective components in the tea oil are not damaged, and the use value is high.

Description

technical field [0001] The invention relates to a method for extracting camellia oil from camellia oleifera seeds. Background technique [0002] Camellia oleifera is an evergreen small tree, and its seeds can be squeezed for edible oil. Camellia oil has a clear and fragrant taste, rich nutrition and storage resistance. It is a high-quality edible oil; it can also be used in industry as lubricating oil and anti-rust oil. It grows in the high mountains and hilly areas of the southern subtropical region, mainly concentrated in five provinces of Guangxi, Zhejiang, Jiangxi, Henan, and Hunan. [0003] The extraction and preparation methods of camellia oil mainly include mechanical pressing method, including high temperature pressing method and low temperature pressing method, organic solvent solvent extraction method, supercritical fluid extraction method, water substitution method and so on. Crude oil that has only been processed through the process of mechanical pressing conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/10C11B3/00C11B3/16
CPCC11B1/04C11B1/10C11B3/001C11B3/003C11B3/16
Inventor 丁晓红
Owner 丁晓红
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