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A kind of production method of tea seed refined oil

A production method and oil refining technology, applied in the direction of fat oil/fat production, fat production, edible oil/fat, etc., can solve the problems of lower oil yield and high production cost, achieve improved edible performance, increase product performance, and simple process Effect

Active Publication Date: 2021-11-19
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many of these methods have different technical problems: since tea seeds contain about 20% starch, the gelatinization of starch during hot pressing reduces the oil yield, and at the same time, there is a risk of producing benzopyrene and other undesirable substances during high-temperature pressing
Conventional process parameters are difficult to completely eliminate, and the production cost is high
So far there is no suitable process for removing bitter and astringent substances in tea seed oil

Method used

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  • A kind of production method of tea seed refined oil
  • A kind of production method of tea seed refined oil
  • A kind of production method of tea seed refined oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A production method of tea seed refined oil, comprising the following steps:

[0035] 1. Crude oil extraction: press and filter the tea fruit seed kernels with a water content of 6% at a temperature below 85°C to obtain pressed crude oil, and the impurity content is less than 0.3wt%;

[0036] 2. Refining:

[0037] a) Degumming: Pour the crude oil into the degumming tank, mix it with water at 70°C, stir at 55rpm for 8 minutes, then stir at 25rpm for 4 minutes, then let it stand for 2.5 hours, and finally remove impurities and water by sedimentation Degumming oil is obtained; the whole degumming process is carried out at a temperature of 70°C, and the water consumption is 2.5 times of the phospholipid content of the crude oil;

[0038] b) Deacidification: first detect the acid value of the degummed oil and calculate the standard addition of sodium hydroxide, then pour the degummed oil into the deacidification tank, add sodium hydroxide solution, deacidify at 65 ° C, and ...

Embodiment 2

[0043] A production method of tea seed refined oil, comprising the following steps:

[0044] 1. Crude oil extraction: press and filter the tea fruit seed kernels with a water content of 8% at a temperature below 85°C to obtain pressed crude oil, the impurity content of which is less than 0.3wt%;

[0045] 2. Refining:

[0046] a) Degumming: Pour the crude oil into the degumming tank, mix it with water at 95°C, stir at 65rpm for 12 minutes, then stir at 35rpm for 6 minutes, then let it stand for 3.5 hours, and finally remove impurities and water by sedimentation Degumming oil is obtained; the whole degumming process is carried out at a temperature of 95°C, and the water consumption is 3.5 times that of the crude oil phospholipid content;

[0047] b) Deacidification: first detect the acid value of the degummed oil and calculate the standard addition of sodium hydroxide, then pour the degummed oil into the deacidification tank, add sodium hydroxide solution, deacidify at 90 ° C, an...

Embodiment 3

[0052] A production method of tea seed refined oil, comprising the following steps:

[0053] 1. Crude oil extraction: press and filter the tea fruit seed kernels with a water content of 7% at a temperature below 85°C to obtain pressed crude oil, the impurity content of which is less than 0.3wt%;

[0054] 2. Refining:

[0055] a) Degumming: Pour the crude oil into the degumming tank, mix it with water at 75°C, stir at 60rpm for 10 minutes, then stir at 30rpm for 5 minutes, then let it stand for 3 hours, and finally remove impurities and water by sedimentation Degumming oil is obtained; the whole degumming process is carried out at a temperature of 75°C, and the water consumption is 3 times of the phospholipid content of the crude oil;

[0056] b) Deacidification: First detect the acid value of the degummed oil and calculate the standard addition of sodium hydroxide, then pour the degummed oil into the deacidification tank, add sodium hydroxide solution, deacidify at 70 ° C, an...

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Abstract

The invention belongs to the technical field of oil refining. The invention discloses a production method of tea seed refined oil, which comprises two processes of crude oil extraction and refining, wherein the refining includes process steps such as degumming, deacidification, decolorization and astringency removal, deodorization and winterization. Compared with the traditional refining technology, the production method of tea seed refined oil in the present invention has the advantages of "mild" refining conditions, clear process parameters, simple process and strong operability; it effectively removes undesirable substances and Bitter and astringent substances, physical and chemical indicators in line with national edible oil standards; does not affect the fatty acid components of tea seed oil, fully retains nutrients; refined oil retains the inherent taste, smell and flavor of tea seed oil; refined oil does not appear crystallization at low temperatures Precipitation of the substance improves the performance of the product and improves the edible performance.

Description

technical field [0001] The invention relates to the technical field of oil refining, in particular to a production method of tea seed refined oil. Background technique [0002] Tea seeds are the seeds of the tea plant (Camellia sinensis (L.) O.Ktze), which have been used as waste by-products, and only a very small part has been utilized. China is a big tea-producing country in the world, with an area of ​​25 million mu of tea gardens. Under the conditions of farming and cutting that produce tea as a product, it can produce more than 1.6 million tons of tea seeds per year, and the theoretical oil production is equivalent to 330,000 hectares of Camellia oleifera forest Oil production. In 2009, the Ministry of Health officially approved tea seed oil as a new resource food. If it can be developed reasonably, it can turn waste into treasure, and the economic and social benefits will be considerable. [0003] Tea seeds contain about 30% oil, which is a non-drying oil and is liqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B3/00C11B3/06C11B3/10C11B3/16C11B1/06A23D9/02
CPCA23D9/02C11B1/06C11B3/001C11B3/008C11B3/06C11B3/10C11B3/16
Inventor 裘晓云卢红伶金杰胡文君陈琳沈国新王少军储开江
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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