Refining process of original sweet tea seed oil via low-temperature physical membrane method

A kind of physical and seed oil technology, which is applied in the refining process of original tea seed oil, can solve the problems of easy loss of active nutrients and natural fragrance, high energy consumption, etc., and achieve the effect of saving refining cost and good food safety

Active Publication Date: 2013-07-24
HUNAN BOBANG AGRI & FORESTRY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Purpose of the invention: The purpose of the invention is to solve many shortcomings such as the high energy consumption of the existing vegetable oil refining process, the easy loss of active nutrients and

Method used

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  • Refining process of original sweet tea seed oil via low-temperature physical membrane method
  • Refining process of original sweet tea seed oil via low-temperature physical membrane method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Squeeze and filter: After cleaning and peeling the dried camellia seed, put it directly into the press machine for physical pressing, and the obtained residue-containing oil is processed in the oil tank and then pumped into the plate and frame filter for filtration, that is, the raw tea seed oil is obtained. Fragrant filtered crude oil;

[0024] 2. Degumming: Put the filtered crude oil into the degumming tank with a pump, add 0.2% flocculant based on the weight of the crude oil and stir for 20 minutes, then separate and degumming through a disc centrifuge. The flocculant is a mixture of phosphoric acid solution and salt. The mixing ratio of phosphoric acid and table salt is 1:15.

[0025] 3. Dewaxing: Add 0.1% of the weight of crude oil to the degummed crude oil to carry out winterization and crystallization. After 24 hours of crystal growth, the dewaxed crude oil is separated by a flat microporous membrane filter, and added The crystal-stimulating filter aid is a m...

Embodiment 2

[0032] 1. Squeeze and filter: After cleaning and peeling the dried camellia seed, put it directly into the press machine for physical pressing, and the obtained residue-containing oil is processed in the oil tank and then pumped into the plate and frame filter for filtration, that is, the raw tea seed oil is obtained. Fragrant filtered crude oil;

[0033] 2. Degumming: pump the filtered crude oil into the degumming tank, add 0.15% flocculant based on the weight of the crude oil and stir for 30 minutes, then separate and degumming through a disc centrifuge. The flocculant is a mixture of phosphoric acid solution and salt. The mixing ratio of phosphoric acid and table salt is 1:10.

[0034] 3. Dewaxing: add 0.2% of the weight of the crude oil to the degummed crude oil for winterization and crystallization. After 18 hours of crystal growth, the dewaxed crude oil is separated by a flat microporous membrane filter. The crystal-stimulating filter aid added is a mixture of perlite a...

Embodiment 3

[0041] 1. Squeeze and filter: After cleaning and peeling the dried camellia seed, put it directly into the press machine for physical pressing, and the obtained residue-containing oil is processed in the oil tank and then pumped into the plate and frame filter for filtration, that is, the raw tea seed oil is obtained. Fragrant filtered crude oil;

[0042] 2. Degumming: Put the filtered crude oil into the degumming tank with a pump, add 0.3% flocculant based on the weight of the crude oil and stir for 20 minutes, then separate and degumming through a disc centrifuge. The flocculant is a mixture of phosphoric acid solution and salt. The mixing ratio of phosphoric acid and table salt is 1:18.

[0043] 3. Dewaxing: Add 0.25% of the weight of the crude oil to the degummed crude oil for winterization and crystallization. After 24 hours of crystal growth, the dewaxed crude oil is separated by a flat microporous membrane filter. The crystal-stimulating filter aid added is a mixture o...

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Abstract

The invention discloses a refining process of original sweet tea seed oil via a low-temperature physical membrane method. The refining process disclosed by the invention comprises the following steps of: (1) squeezing and filtering, namely physically squeezing cleaned and husked dry oil tea seeds in a squeezer, treating acquired slag-containing oil via an oil purifying tank, and subsequently pumping the oil into a plate-frame type filter or a leaf filter via a pump for filtering to acquire filtered crude oil with original sweet flavor of the tea seed oil; (2) degumming, namely pumping the filtered crude oil into a degumming tank via the pump, adding a flocculating agent in a certain proportion to the degumming tank, fully stirring the crude oil and the agent for a period of time, and subsequently separating and degumming the oil via a disc type centrifugal machine; (3) dewaxing, namely adding a crystal-promoting filter aid in a certain proportion into the degummed crude oil for winterization crystallization, growing crystal for a period of time, and subsequently separating the oil via a flat microporous membrane filter to acquire dewaxed crude oil; and (4) deacidifying and decoloring, namely pumping the dewaxed crude oil into a spiral turbulence promoter and then into a compound nanofiltration membrane device via a booster pump, and circularly deacidifying and decoloring neutral oil via an oil storage tank equipped with an ultrasonic device to acquire the high grade edible tea seed oil, wherein in the compound nanofiltration membrane device, free fatty acid and pigments pass through a filtering membrane. The tea seed oil prepared by the process disclosed by the invention keeps the original natural fragrance and effectively retains specific active nutrition ingredients, such as tocopherol, squalene and sterol, of the tea seed oil; and simultaneously, the refining method is low in cost and no industrial wastewater is generated.

Description

technical field [0001] The invention relates to a refining process of the original fragrant tea seed oil prepared by a low-temperature physical pressing process, in particular to a low-temperature physical membrane refining process of the original fragrant tea seed oil. Background technique [0002] Tea seed oil is a high-quality traditional edible oil in my country, which is usually prepared by high-temperature pressing process. Research in recent years has found that the traditional high-temperature pressing process is likely to cause the loss of active nutrients in tea seed oil, and the unique natural fragrance of tea seed oil, and may also produce carcinogens-benzopyrene. Therefore, the low-temperature physical pressing process of Camellia oleifera seed oil is sought after by people. However, the camellia seed crude oil produced by low-temperature physical pressing process generally does not meet the requirements of national food safety standards, and still needs to be ...

Claims

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Application Information

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IPC IPC(8): C11B3/00
Inventor 吴苏喜宋斌刘瑞兴李慧谭传波闫帅航黄闪闪宋艳秋
Owner HUNAN BOBANG AGRI & FORESTRY TECH CO LTD
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