Walnut-oil refining technology

A technology of walnut oil and process, which is applied in the direction of fat oil/fat refining and fat production, and can solve the problems of inability to remove peptized substances and other impurities in walnut crude oil, imperfect walnut oil refining process, etc.

Inactive Publication Date: 2018-06-22
洛阳康贝源食品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the existing walnut oil preparation and refining process is not perfect, and the peptizing substances and other impurities in the walnut crude oil cannot be removed well, and provides a walnut oil refining process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of walnut oil refining process, comprises the following steps:

[0036] In the first step, walnut crude oil is filtered, and the walnut crude oil obtained by physical pressing or chemical extraction is filtered to remove impurities;

[0037] The second step, phosphoric acid degumming, removes the peptized impurities in the walnut crude oil by phosphoric acid;

[0038] The third step is alkali refining, adding lye to the walnut crude oil after degumming for alkali refining;

[0039] The fourth step is the separation of oil and soap. The degummed oil after alkali refining is separated by a centrifuge, and the emulsion is removed to obtain alkali refining oil;

[0040] The fifth step is a water wash, which is the first water wash for alkali refining;

[0041] The sixth step is the second water washing, and the second water washing is carried out for the alkali refining;

[0042] The seventh step is vacuum drying, and the alkali refined oil after the second water ...

Embodiment 2

[0048] Based on embodiment 1, a kind of walnut oil refining process comprises the following steps:

[0049] In the first step, walnut crude oil is filtered, and the walnut crude oil obtained by physical pressing or chemical extraction is filtered to remove impurities;

[0050] The second step is phosphoric acid degumming. The filtered walnut crude oil is transported to an oil-steam heat exchanger for heating, heated to 85°C, and introduced into a reaction tank for mixing with phosphoric acid. The degumming is completed after 20 minutes of reaction, and the concentration of phosphoric acid is 85%. Phosphoric acid accounts for 0.05% by weight in filtering walnut crude oil;

[0051] In the third step, alkali refining, the concentration of solid alkali and demineralized water is used to prepare an alkali solution with a concentration of 18 ° Be', and the degummed walnut crude oil is introduced into the alkali solution and left to stand until the degummed oil is clarified;

[0052...

Embodiment 3

[0061] Based on embodiment 2, a kind of walnut oil refining process comprises the following steps:

[0062] In the first step, walnut crude oil is filtered, and the walnut crude oil obtained by physical pressing or chemical extraction is filtered to remove impurities;

[0063] The second step is phosphoric acid degumming. The filtered walnut crude oil is transported to an oil-steam heat exchanger for heating, heated to 95°C, and introduced into a reaction tank for mixing with phosphoric acid. The degumming is completed after 30 minutes of reaction, and the concentration of phosphoric acid is 85%. Phosphoric acid accounts for 0.2% by weight in filtering walnut crude oil;

[0064] In the third step, alkali refining, the concentration of solid alkali and demineralized water is used to prepare an alkali solution of 25 ° Be', and the degummed walnut crude oil is introduced into the alkali solution and left to stand until the degummed oil is clarified;

[0065] The fourth step, oil...

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PUM

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Abstract

The invention relates to the field of edible oil refining, and discloses a walnut-oil refining technology. The walnut-oil refining technology is characterized by including the steps that walnut crudeoil prepared through physical squeezing or chemical extraction is filtered, impurities are removed, peptized impurities in the walnut crude oil are removed through phosphoric acid, alkali liquid is added into the walnut crude oil after degumming, alkali refining is carried out, then degummed oil after alkali refining is separated through a centrifugal machine, an emulsified material is removed, and alkali refining oil is prepared; the alkali refining oil is washed two times, the alkali refining oil after secondary washing is led into a vacuum drier and dehydrated, and dried oil is prepared; the dried oil is led into a filtering machine, carclazyte and filter aid are added and used for decolorizing, decolorized oil is prepared through filtering, and finished product oil is prepared. By means of the walnut-oil refining technology, the problems that an existing walnut-oil preparing refining technology is incomplete, and the peptized substances and other impurities in the walnut crude oilcannot be well removed are solved.

Description

technical field [0001] The invention relates to the field of edible oil refining, in particular to a walnut oil refining process. Background technique [0002] The oil content of walnut is as high as 65% to 70%, ranking first among all woody oil plants, and has the reputation of "oil depot on trees". The fat content per 100 grams of walnut kernels is 63 to 76 grams. The main components of its fat are linoleic acid glycerides, linolenic acid and oleic acid glycerides, which are essential fatty acids for the human body. Walnut oil is made from walnut kernels through oil extraction, refining, and purification. Its color is yellow or brownish yellow. It is an ideal high-grade edible cooking oil in people's daily life. [0003] At present, walnut crude oil is obtained by physical pressing from walnut kernels, which contains a certain amount of impurities and peptized substances. Removal of peptized substances. Contents of the invention [0004] The invention provides a waln...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00
CPCC11B3/001
Inventor 李汝芳
Owner 洛阳康贝源食品股份有限公司
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