Low temperature oil preparation and protein in oil-bearing materials preparation method

An oil protein, low temperature technology, applied in the protein composition of vegetable seeds, protein food components, fat oil/fat production, etc., can solve the problems of protein denaturation, deepening of crude oil color, high phospholipid content, and high water absorption. and oil absorption, no chemical contamination or residue, low crude fiber content

Inactive Publication Date: 2006-10-04
WUHAN POLYTECHNIC UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing oil extraction technology, whether it is to adopt the process of "cleaning-fried seeds-pressing" or "cleaning-crushing-rolling-steaming-pressing-leaching" (peanut); Cleaning-hulling-rolling-steaming-pre-pressing-leaching" process (sunflower seeds); or "cleaning-crushing-softening-rolling-leaching" process (soybean), Its disadvantages are: the oil-making temperature generally exceeds 105°C, which will have an adverse effect on the quality of crude oil and cakes. First, it will cause dark color of crude oil, high content of phospholipids, loss of some flavor or natural nutrients, and unfavorable It is beneficial to the refining of oil; the second is the protein denaturation of the cake, and the color is deepened. Generally, it is only used as feed, which affects the development and utilization of protein resources.
In addition, peanuts, soybeans and other oils are generally directly processed without peeling. This will not only deepen the color of the crude oil and increase the difficulty of refining, but also affect the quality of the cake due to the large amount of crude fiber contained in the skin. Appearance and palatability affect the development and utilization of protein in its cake

Method used

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  • Low temperature oil preparation and protein in oil-bearing materials preparation method

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Comparison scheme
Effect test

Embodiment 1

[0013] see figure 1 , a low-temperature oil production method of peanut kernels and oil protein preparation method, the specific steps are: the oil is peanut kernels, after the raw materials are cleaned, the water is dried to 4%; after cooling to ambient temperature (20°C-30°C ), carry out peeling treatment, take off the red coat, and the peeling rate is above 90%, then separate the kernel and skin to obtain oilseed kernels (peanut kernels) with a skin rate of 2%, and the red coat (husk) is separately processed Comprehensive utilization; low-temperature pressing of peanut kernels without rolling or after rolling, using low-temperature oil pressing equipment at an input temperature of 50°C to obtain low-temperature pressed crude oil and low-temperature pressed cake; the crude oil is precipitated 1. After fine filtration, the low-temperature pressed natural oil (peanut oil) is obtained; the low-temperature pressed cake is directly subjected to superfine pulverization processing ...

Embodiment 2

[0016] A low-temperature oil production method of sunflower seeds and oil-seed protein production method, the specific steps are: after cleaning the raw materials of sunflower seeds, drying the water to 5%; cooling to ambient temperature (20°C-30°C), and removing Shell treatment, the shelling rate is above 90%, and then separate the kernels and shells to obtain oilseed kernels with a shell content of 3%, and the shells will be comprehensively utilized; the sunflower kernels are used without rolling or after rolling The low-temperature oil pressing equipment performs low-temperature pressing under the condition of the input temperature of 40°C to obtain low-temperature pressed crude oil and low-temperature pressed cake; the crude oil is processed by precipitation and fine filtration to obtain low-temperature pressed sunflower oil; low-temperature pressed cake Using ethanol leaching, first leaching with ethanol with a concentration of 95%, and then leaching with ethanol with a co...

Embodiment 3

[0018] A low-temperature soybean oil production method and oil-seed protein production method, the specific steps are: the oil is soybean, the raw material is cleaned, and the moisture is dried to 5%; after cooling to ambient temperature (20°C-30°C), carry out Peeling treatment, the peeling rate is above 90%, and then the kernels and skins are separated to obtain soybean kernels with a skin content of 1%, and the soybean hulls are used for comprehensive utilization; the soybean kernels are not rolled or after rolling, and the oil is pressed at low temperature The equipment carries out low-temperature pressing under the condition of the input temperature of 30°C to obtain low-temperature pressed crude oil and low-temperature pressed cake; the crude oil is processed by precipitation and fine filtration to obtain low-temperature pressed soybean oil; the low-temperature pressed cake is used The crushing equipment directly carries out superfine crushing processing to obtain semi-def...

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Abstract

The related preparation method for oil and oil protein comprises: cleaning material, drying till water content in 2-10%; cooling to ambient temperature, peeling or shelling more than 90%, separating core and seedcase to obtain the oiling seed with 0.5-10% seedcase; after rolling or not, expressing with low-temperature device at 20-70Deg to obtain crude oil and cake; depositing, fine filtering to obtain the objective oil; super grinding the cake to prepare semi-degreased protein powder, or soaking to obtain leachate for recovery and wet dreg to recover ethanol and grind for protein powder.

Description

technical field [0001] The invention relates to a method for low-temperature oil production of oil plants and preparation of oil plant protein, in particular to low-temperature oil production of oil plants such as peanut kernels, sunflower seeds, soybeans, etc. in oil processing and preparation of oil plant protein. technical background [0002] Chinese patent 94120441.3 discloses a method for the production of vegetable oil. The raw material containing uncrushed whole oilseeds is loaded into a twin-screw extruder, which is equipped with a crushing screw or a cutting helical screw and provides There is an oil extraction area; through the steam input area located downstream of the raw material crushing area of ​​the extruder, 1-5% steam is added to the raw material; and the outlet temperature of the extruder is adjusted to the range of 95-120 °C, The outlet pressure is adjusted to 5-50kg / cm 2 Realize oil extraction under certain conditions. In the method for extracting oil,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/00A23J1/14
Inventor 刘大川叶平张麟张安清刘金波
Owner WUHAN POLYTECHNIC UNIVERSITY
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