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Demulsification method in production processes for extracting tea-seed oil extraction with participation of water phase

A production process and technology of tea seed oil, which are applied in the directions of fat oil/fat production, fat production, and fat oil/fat refining, etc., can solve the problems of poor demulsification effect, unsuitable for large-scale industrial application, etc., and achieve good demulsification effect, Low cost and high oil quality

Inactive Publication Date: 2013-11-20
CHANGSHA HAORUI BIOLOGICAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these demulsification methods have certain limitations. The demulsification effect on the emulsification of tea seed oil extracted from the water phase is poor, and they are not suitable for large-scale industrial applications.
At present, the patent for solving the emulsification problem in the aqueous phase extraction process of tea seed oil has the authorized announcement number of the Subtropical Forestry Research Institute of the Chinese Academy of Forestry Sciences as CN 102154059 A "a kind of emulsification liquid used in the extraction process of camellia oleifera oil by aqueous enzyme method Demulsification and oil extraction method", the technology disclosed in this patent needs to add organic solvent ethanol, and can only be applied to the emulsification system after extracting clear oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh 300g of Camellia oleifera seed raw material, use a universal grinder to crush to a particle size of about 100 mesh, add 1500mL of saline with a concentration of 10%, and adjust the pH to 5.0 and the temperature to 75°C during the process of extracting oil with the water phase involved. After stirring for 1 h, the clear oil and solid residue were removed by centrifugation. Add water 2.5 times the volume of the emulsion to the emulsion after separating the clear oil and solid residue, adjust the pH to 5.0, and the temperature to 75°C. After stirring for 1.5 hours, centrifuge at a speed of 60r / s for 10 minutes to remove the lower layer. Water phase; centrifuge at 90r / s for 25min to obtain oil-water two-phase with clear interface.

Embodiment 2

[0020] Weigh 500g of Camellia oleifera seed raw material, crush it to a particle size of about 80 mesh with a universal grinder, add 2000mL of saline with a concentration of 15%, and adjust the pH to 4.5 and the temperature to 95°C while the water phase participates in the oil extraction process. After stirring for 1.5h, clear oil and solid residue were removed by centrifugation. Add water twice the volume of the emulsion to the emulsion after separating the clear oil and solid residue, adjust the pH to 5.0, and the temperature to 80°C. After stirring for 1 hour, centrifuge at a speed of 70 r / s for 10 minutes to remove the lower layer of water. phase; and centrifuged at 120r / s for 20min to obtain oil-water two-phase with clear interface.

Embodiment 3

[0022] Weigh 800g of Camellia oleifera seed raw material, use a universal pulverizer to crush to a particle size of about 60 mesh, add 4000mL of salt water with a concentration of 15%, and adjust the pH to 5 and the temperature to 98°C while the water phase participates in the oil extraction process. After stirring for 2.5 hours, the clear oil and solid residue were removed by centrifugation. Add water three times the volume of the emulsion to the emulsion after separating the clear oil and solid residue, adjust the pH to 5.0, and the temperature to 85°C. After stirring for 0.5h, centrifuge at 80r / s for 15min to remove the lower layer Water phase; centrifuge at 150r / s for 25min to obtain oil-water two-phase with clear interface.

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Abstract

The invention discloses a demulsification method in production processes for extracting tea-seed oil extraction with the participation of a water phase, relates to a technology for breaking an oil-water emulsification state during tea-seed oil production, and in particular to a technology for breaking emulsification in production processes for extracting tea-seed oil extraction with the participation of a water phase, such as an aqueous enzymatic method, an aqueous solution method or an aqueous extraction method. The technical scheme is as follows: after tea seeds are moderately crushed, an appropriate amount of water phase is added, and the purpose of breaking an oil-water emulsification phenomenon is achieved by virtue of the comprehensive methods of increasing temperature, regulating pH value and centrifugally separating. The method provided by the invention is simple, feasible and strong in practicability, solves the problem of a low oil yield caused by the fact that oil and water are seriously emulsified and difficult to separate in a water-phase oil extraction process, and is beneficial to actual industrial application and popularization for the water-phase tea-seed oil extraction process technology.

Description

technical field [0001] The invention relates to a demulsification method in the extraction process of tea seed oil, in particular to a demulsification method in the extraction process of tea seed oil with the participation of water phase. technical background [0002] Tea seed oil or camellia oil has a high content of monounsaturated fatty acids, and is rich in vitamin E, phytosterols, squalene and other active nutrients, which has a good health care effect on the human body. However, both the traditional squeezing method and the organic solvent leaching method have certain deficiencies, especially the active nutrients in the tea seed oil cannot be well preserved, and there are food safety hazards such as excessive benzopyrene or organic solvent residues; Although the critical fluid extraction method can better preserve the active nutrients, it is expensive and not suitable for large-scale industrial production. The water extraction method (also known as water immersion met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B3/00
Inventor 吴苏喜闫帅航谭传波黄闪闪宋艳秋陆少兰张春丽李慧宋斌
Owner CHANGSHA HAORUI BIOLOGICAL SCI & TECH
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