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A squeezing preparing method for 6S1D soybean oil

A 6S1D, soybean oil technology, applied in the direction of fat oil/fat refining, fat oil/fat production, fat production, etc., can solve the problem of soybean oil back color and so on

Inactive Publication Date: 2016-04-27
SHANGHAI TAOHONG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a 6S1D soybean oil pressing preparation method, which can effectively solve the problem of soybean oil back color

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of 6S1D soybean oil pressing preparation method, described preparation method comprises the following steps:

[0026] (1) Soybean pretreatment: choose soybeans with full particles, rinse with clear water, remove impurities, polish and peel, dry, control the water content of soybeans to 13wt%, and then crush to 20 meshes, and set aside;

[0027] (2) Pressing: the soybeans processed through step (1) are physically cold-pressed by the KOMET cold press machine of IBG Monforts, Germany. The temperature of the pressing is 50° C., and the pressure is 30 MPa. The time of the pressurization process is 15min (that is, the pressure is raised from 0 to 30MPa in 20min, and the pressure rises by 2MPa per minute), and the time for maintaining the pressure at 30MPa is 35min to obtain crude oil;

[0028] (3) Degumming: At a temperature of 65°C, homogenize the crude oil at 10,000 rpm for 1 min (using FJ200-SH digital display high-speed dispersing homogenizer, Shanghai Specimen Mod...

Embodiment 2

[0033] Carry out oil extraction according to the preparation method of embodiment 1, difference is only: the acid solution of described step (3) is the aqueous solution of citric acid and lactic acid, wherein the concentration of citric acid is 0.0375wt%, and the concentration of lactic acid is 0.0375wt%. Obtain the soybean oil of embodiment 2.

Embodiment 3

[0035] Carry out oil extraction by the preparation method of embodiment 1, difference is only: the acid solution of described step (3) is the aqueous solution of citric acid and tartaric acid, and wherein the concentration of citric acid is 0.0375wt%, and the concentration of tartaric acid is 0.0375wt%. Obtain the soybean oil of embodiment 3.

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PUM

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Abstract

A squeezing preparing method for 6S1D soybean oil is disclosed. The method includes steps of (1) smashing soybean, (2) squeezing at 35-55 DEG C, (3) adding an acid solution into crude oil prepared by squeezing with the mass of the acid solution being 2-8 wt% of the mass of the crude oil, and stirring for 25-35 min, (4) precipitating and (5) filtering. According to the method, improvements are made on traditional soybean oil refining processes at present, main reasons for soybean oil color reversion in refining processes are found, and the phosphorus content of the oil after degumming with the composite acid solution is significantly reduced, and therefore degummed oil with a low phosphorus content, a low acid value and a bright and clear color can be obtained, color reversion of the soybean oil is effectively inhibited, refining processes are simplified, energy consumption is reduced, the amount of industrial waste discharge is reduced, the refining yield of the crude oil is increased and the production cost is saved.

Description

technical field [0001] The invention relates to the technical field of soybean oil processing, in particular to a 6S1D soybean oil pressing preparation method. Background technique [0002] Soybean oil is derived from soybean seeds and is one of the most common edible oils in people's daily life. At present, the refined soybean oil produced by domestic and foreign oil factories after degumming, deacidification, decolorization and deodorization is light yellow in color, but in the process of storage, transportation and consumption, the color of deodorized refined soybean oil will continue to deepen. That is the so-called grease back phenomenon. Oils and fats produced by both physical refining and chemical refining will undergo color reversion, especially physical refining, including refining production lines imported from abroad, and oils produced will also undergo color reversion. The degree of color reversion of soybean oil has obvious differences due to different interna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/06C11B3/00
CPCC11B1/06C11B3/001C11B3/008
Inventor 黄毅
Owner SHANGHAI TAOHONG CHEM TECH