Method for extracting camellia oil and tea saporin from tea seeds

A technology for camellia oil and camellia seeds, which is applied in chemical instruments and methods, fat oil/fat production, sugar derivative preparation, etc., can solve the problems of increasing process complexity, environmental pollution, and many equipment, and achieves easy recovery and reuse. , The effect of reducing production cost and excellent oil quality

Active Publication Date: 2011-11-23
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the leaching method also has disadvantages: a lot of equipment and a large investment; the composition of the crude oil is complex, which requires strict refining treatment, and the flavor of the oil is lost; , the solvent recovery system using the direct leaching method has a large load; the use of organic solvents increases the complexity of the process, reduces the safety of production, and causes environmental pollution; the residual traces of organic solvents in the refined oil are harmful to human health
[0006] At present, Zhang Weiguo et al. (CN101569329) proposed to use organic solvents to extract the tea saponin in tea seeds and then use the aqueous enzymatic method to extract the oil in tea seed residues in domestic and foreig...

Method used

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  • Method for extracting camellia oil and tea saporin from tea seeds
  • Method for extracting camellia oil and tea saporin from tea seeds
  • Method for extracting camellia oil and tea saporin from tea seeds

Examples

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Effect test

Embodiment 1

[0077] Example 1 :Using the method of the present invention to extract tea seed oil and tea saponin

[0078] The method implementation process is as figure 1 As shown, the specific implementation steps are as follows:

[0079] Step A: After pulverizing the camellia seed kernel obtained after shelling the camellia seed from Anhui Huishan Camellia Oil Co., Ltd., a material with a particle size of 150 mesh is obtained. Mix 1 part by weight of the pulverized camellia seed kernel with 4 parts by weight of water, and then add 0.5 parts by weight of 95% alcohol solution, mixed uniformly at a temperature of 50°C and a stirring speed of 70 rpm to obtain a pretreatment mixture of camellia seed kernels;

[0080] Step B: Adjust the pH of the camellia seed kernel pretreatment mixture obtained in step A) to 8 with 1N sodium hydroxide solution, then extract with water for 1 hour at a temperature of 40°C, and then centrifuge at 2500rpm to obtain tea seeds An oil phase, an aqueous phase and a camel...

Embodiment 2

[0085] Example 2 :Using the method of the present invention to extract tea seed oil and tea saponin

[0086] The method implementation steps are as follows:

[0087] Step A: Camellia seed kernels obtained after dehulling the camellia seed oil purchased from Anhui Huishan Camellia Oil Co., Ltd. are crushed to obtain a material with a particle size of 200 meshes. Mix 1 part by weight of crushed camellia seed kernels with 4 parts by weight of water, and then add 0.8 parts by weight of a 95% alcohol solution, mixed uniformly under the conditions of a temperature of 60°C and a stirring speed of 80 rpm, to obtain a camellia seed kernel pretreatment mixture;

[0088] Step B: Adjust the pH of the camellia seed kernel pretreatment mixture obtained in step A) to 9 with 1N sodium carbonate aqueous solution, then extract with water for 2 hours at a temperature of 50°C, and then centrifuge at 4000 rpm to obtain tea seed oil Phase, water phase and camellia seed residue phase; said tea seed oil p...

Embodiment 3

[0093] Example 3 :Using the method of the present invention to extract tea seed oil and tea saponin

[0094] The method implementation steps are as follows:

[0095] Step A: After pulverizing the camellia seed kernels obtained after shelling of the camellia seed oil purchased from Anhui Huishan Camellia Oil Co., Ltd., a material with a particle size of 100 mesh is obtained, and 1 part by weight of the pulverized camellia seed kernel and 3 parts by weight of water are mixed uniformly, and then added 0.4 parts by weight of a 95% alcohol solution, mixed uniformly under the conditions of a temperature of 50°C and a stirring speed of 70 rpm to obtain a camellia seed kernel pretreatment mixture;

[0096] Step B: The pretreatment mixture of camellia seed kernels obtained in step A) was adjusted to pH 7 with 1N sodium hydroxide aqueous solution, and then extracted with water for 0.5h at a temperature of 60°C, and then centrifuged at 1500rpm to obtain tea Seed oil phase, water phase and cam...

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Abstract

The invention relates to a method for extracting camellia oil and tea saporin from tea seeds. The method provided by the invention comprises the following steps of: pre-treating tea seeds, extracting camellia oil in a water phase, extracting tea saporin, recycling a solvent and the like. The oil extracting rate obtained by using the method provided by the invention can be more than 95%, the recycling rate of the tea saporin is more than 85% and the oil quality of the camellia oil is good. In the method provided by the invention, ethanol or isopropanol is utilized as the solvent so that the camellia oil is safe and toxic, has a lower boiling point, is easily recycled and repeatedly utilized, can reduce manufacturing cost, is environmental-friendly and has a very wide application prospect.

Description

【Technical Field】 [0001] The invention belongs to the technical field of agricultural resource utilization. More specifically, the present invention relates to a method for extracting camellia seed oil and tea saponin from camellia seed oil. 【Background technique】 [0002] Camellia oleifera is a unique oil crop in China. The national annual output of camellia seeds is 600,000 tons, of which Hunan and Jiangxi provinces account for more than 60% of the national output. The tea saponin content of camellia seeds is about 8.0-12.0%, and its oil content is as high as 35.0-60.0%. The fatty acid composition of camellia seed oil is similar to olive oil, especially the content of oleic acid and linoleic acid is as high as 90% or more. It also contains a variety of functional ingredients, which has obvious effects of preventing cardiovascular sclerosis, lowering blood pressure, and lowering blood lipids. It has great potential for development as a high-grade oil. Tea saponin (TS), also k...

Claims

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Application Information

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IPC IPC(8): C11B1/00C11B1/04C11B1/10C07J63/00C07H15/256C07H1/08
Inventor 杨瑞金张文斌李强华霄赵伟
Owner JIANGNAN UNIV
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