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A composite process for extracting tea seed oil by aqueous enzymatic method

A technology of tea seed oil and composite process, which is applied in the production of fat oil/fat, and fat production, can solve the problems of time-consuming and laborious, solvent residue, low yield of clear oil, etc., so as to reduce production process and production time, and avoid organic solvents. Residual, effect of simplified extraction procedure

Active Publication Date: 2017-11-21
GUIZHOU ZHOUYIQING BIOTECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] From the above technical solutions, it can be seen that the extraction of tea seed oil by aqueous enzymatic method requires organic solvent extraction in the last step, because the emulsification phenomenon of tea seed oil extracted by aqueous enzymatic method is extremely serious, and it is difficult to obtain clear oil
The inventor further studied each parameter condition of the aqueous enzymatic extraction process, and found that although the oil yield of tea seed oil had been improved to some extent through the selection of different parameter conditions in the prior art, the oil yield was not ideal enough, and the oil The emulsification phenomenon has not been solved, and the yield of clear oil is low; after extraction, organic solvent extraction (such as anhydrous ether) steps, crude oil refining steps, etc. are required. Organic solvent extraction is likely to cause solvent residues and affect the quality and safety of the product. In addition, alkali The refining process is complicated, time-consuming and labor-intensive, resulting in increased production costs

Method used

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  • A composite process for extracting tea seed oil by aqueous enzymatic method
  • A composite process for extracting tea seed oil by aqueous enzymatic method
  • A composite process for extracting tea seed oil by aqueous enzymatic method

Examples

Experimental program
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Effect test

Embodiment 1

[0092] A composite process for extracting tea seed oil by aqueous enzymatic method, the steps are as follows:

[0093] (1) Remove the tea seeds, crush them, pass through a 60-mesh sieve, and fry them at a constant temperature of 100°C for 20 minutes, and store them in airtight storage for later use;

[0094] (2) Weigh the roasted tea seed powder, add some distilled water and Na 2 CO 3 , NaCl mixed salt solution, fully stirred and mixed, adjust the pH to 9; the reaction solution is Na 2 CO 3 , NaCl, alkaline protease mixed aqueous solution, in which Na 2 CO 3 The concentration ratio of NaCl and NaCl is 0.4mol / L:0.4mol / L, and it is dissolved in some distilled water to make a salt solution before adding;

[0095] (3) Warm up the mixed tea seed powder solution to 55°C, then add the prepared enzyme solution under stirring conditions, and close the stirring reaction for 3.5 hours; the enzyme solution is prepared by dissolving alkaline protease in partially distilled water , th...

Embodiment 2

[0098] A composite process for extracting tea seed oil by aqueous enzymatic method, the steps are as follows:

[0099] (1) Shell the tea seeds, crush them, pass through a 60-mesh sieve, and fry at a constant temperature of 100°C for 15 minutes, and set aside;

[0100] (2) Weigh the roasted tea seed powder, add some distilled water and Na 2 CO 3 , NaCl mixed salt solution, fully stirred and mixed; the reaction solution is Na 2 CO 3 , NaCl, alkaline protease mixed aqueous solution, in which Na 2 CO 3 The concentration ratio of NaCl and NaCl is 0.2mol / L:0.8mol / L, and it is dissolved in some distilled water to make a salt solution before adding;

[0101] (3) Warm up the mixed tea seed powder solution to 52°C, then add the prepared enzyme solution under stirring conditions, and stir for 4 hours; the enzyme solution is prepared by dissolving alkaline protease in partially distilled water, alkaline The dosage of protease is 1.68g / KG tea seed powder;

[0102] (4) After the reac...

Embodiment 3

[0104] A composite process for extracting tea seed oil by aqueous enzymatic method, the steps are as follows:

[0105] (1) Remove the tea seeds, crush them, pass through a 60-mesh sieve, and fry them at a constant temperature of 100°C for 30 minutes, and store them in airtight storage for later use;

[0106] (2) Weigh the roasted tea seed powder, add some distilled water and Na 2 CO 3 , NaCl mixed salt solution, fully stirred and mixed, adjust the pH to 8.5; the reaction solution is Na 2 CO 3 , NaCl, alkaline protease mixed aqueous solution, in which Na 2 CO 3 The concentration ratio of NaCl and NaCl is 0.3mol / L:0.6mol / L, and it is dissolved in some distilled water to make a salt solution before adding;

[0107] (3) Warm up the mixed tea seed powder solution to 57°C, then add the prepared enzyme solution under stirring conditions, and close the stirring reaction for 3 hours; the enzyme solution is prepared by dissolving alkaline protease in partially distilled water, The...

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Abstract

The invention discloses a compound technology for extracting tea seed oil employing an aqueous enzymatic method. The technology comprises the following steps: (1) decladding tea seeds, crushing, screening and frying for later use; (2) weighing the fried tea seed powder, sequentially adding part of distilled water and a mixed salt solution according to the solid-liquid weight / volume ratio of the tea seed powder to reaction liquid is 1 to (4.5-6), fully stirring, evenly mixing, and adjusting the pH or not; (3) heating the evenly mixed tea seed powder solution to 52-57 DEG C, adding a prepared enzyme fluid under a stirring condition, and stirring for 3-4 hours; and (4) centrifuging, standing and separating, so as to obtain a target product. According to the compound technology, combination innovation is achieved; the advantages of an extraction technology employing a modern aqueous enzymatic method in the world, and an extraction technology employing a traditional aqueous extraction process in China are integrated; high oil extraction rate can be increased by combined action of a degrading enzyme-salt effect; especially, the emulsion phenomenon caused by tea seed protein and the like can be relieved; and the yield of clear oil is significantly increased.

Description

technical field [0001] The invention belongs to the field of oil extraction and processing, and in particular relates to a composite process for extracting tea seed oil by an aqueous enzymatic method. Background technique [0002] As a big tea-producing country, my country has a planting area of ​​16 million mu of tea trees. It is conservatively estimated that the annual output of tea seeds is 4 million tons, and more than 500,000 tons of tea seed oil can be extracted, which is equivalent to the oil production of 470,000 hectares of rapeseed. The economic value is very considerable . Such rich tea seed resources have not been widely developed and utilized, which is particularly prominent in Fujian, a major tea-producing province. Most of the tea seeds are discarded in the fields to fend for themselves. The oil content of tea seed is about 30%. The composition of oil is similar to that of olive oil and has high nutritional value. Alkali and other ingredients have many health...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/00C11B1/04
CPCC11B1/00C11B1/025C11B1/04
Inventor 王晓琴陈丽丽
Owner GUIZHOU ZHOUYIQING BIOTECH
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