CN104774681A

CN104774681A - Corn germ oil and production technology thereof

Info

Publication number: CN104774681A
Application number: CN201510141374.XA
Authority: CN
Inventors: 查孝柱
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-16
Filing date: 2015-03-16
Publication date: 2015-07-15

Abstract

The invention provides a corn germ oil and a production technology thereof. The technology sequentially comprises the following steps: 1, decorticating through using a decorticator to obtain corn germs; 2, airing the corn germs to control the water content at 4%; 3, pressurizing the aired corn germs by using a hydraulic press to obtain crude oil; and 4, precipitating the crude oil for 36-48h, and filtering to obtain finished oil. The corn germ oil has thick and fragrant smell and unique flavor, can be widely used to cook various foods and dishes, and has high nutrition values and health care and health preserving effects, and the technology ensures high oxidation resistant active components, and is especially suitable for being popularized in the field of small-batch extraordinary oil production technologies.

Description

Fructus Maydis oil and production technique thereof

Technical field

The present invention relates to a kind of method of producing Fructus Maydis oil, art: two, biological and new medical technology, (seven) modern agricultural technology, 4, agricultural-food intensive processing and modern accumulating: agriculture and forestry product and extraordinary enhance productivity are processed.

Background technology

Fructus Maydis oil (also known as Semen Maydis oil) is a kind of edible vegetable oil of high-quality, and it take maize germ as raw material, and mainly adopt in wet-method W-Gum factory, the maize germ separated is raw material, obtained crude oil.Crude oil is again through refinery practice--and come unstuck, decolour, dewax, deodorization etc. processes the refined maize's germ oil obtaining different standards, and containing the unsaturated fatty acids of 86%, wherein 56% is linolic acid, and human absorptivity can reach more than 97%; Be 14% containing saturated fatty acid.

It should be noted that, commodity corn plumule is obviously in acid, PH is generally about 4.5 ~ 5 after measured, raw corn oil is aobvious acid still, particularly the unsaturated fatty acids of Fructus Maydis oil is high, is easy to combine with other macromole (protein and carbohydrate), forms the complex body such as lipopolysaccharides and lipoprotein, cause grease to extract difficulty large, stability is not easily held; Different from the oil plant that soybean, peanut, cottonseed etc. are usually used in processing grease, in process technology, have singularity, this is the unmanageable key point of Fructus Maydis oil.

Therefore, for the different characteristics of Fructus Maydis oil, the processing technology of Improvement Fructus Maydis oil, particularly screening the optimum process condition of maize germ oil drying, is capture Fructus Maydis oil technical barrier, obtains the key of high-grade maize germ oil.

Summary of the invention

The object of the present invention is to provide the maize germ production method of a kind of easy, nutritive value and health care, rational technology.

Technical scheme of the present invention is achieved in that and comprises the steps:

A, to peel off with decorticator, obtain maize germ;

B, airing is carried out to maize germ, control water ratio 3%-5%;

C, the maize germ hydropress dried is added extrusion crude oil;

Maize germ is made cake and puts into hydropress, often squeeze and throw cake 20-25 block, every block is about 4-6kg, equably pressurized hydraulic low pressure, when making pressure be pressed onto 110-120MPa, low pressure is transferred to high pressure, and uniform pressurization is to during 280-300MPa, during squeezing, can not be too fast, in order to avoid cake slag oozes out.

Filter after D, crude oil precipitation 36 ~ 48h, obtain processed oil.

After crude oil precipitation 36 ~ 48h, oil is evenly crossed through flame filter press and filters impurity, obtain processed oil.

Advantage of the present invention is:

Production technique of the present invention gets that the product colour of oil is shallow, the special odor that has maize germ and remain nutritive ingredient; Oven dry in traditional technology, steaming are fried and decoloration process needs to add gac or atlapulgite, oven dry is got oil and is made the increase of benzopyrene content need to add charcoal absorption, steam fry get oil color more deeply need to add activated decoloration, although can remove unfavorable factor, complicated operation, interpolation chemical substance can remove the special odor of nutritive ingredient and corn.

The invention provides the maize germ oil producing method of a kind of easy, nutritive value and health care, rational technology, can produce for short run special oil and technical support is provided, be suitable for promoting in edible fat production technical field.

Embodiment

Maize germ oil production technique:

A, to peel off with decorticator, obtain maize germ;

B, airing is carried out to maize germ, control water ratio 4%;

C, the maize germ hydropress dried is added extrusion crude oil;

Maize germ is made cake and puts into hydropress, often squeeze and throw cake 23 pieces, every block is about 5kg, equably pressurized hydraulic low pressure, when making pressure to 115MPa, low pressure is transferred to high pressure, uniform pressurization to during 285MPa, during squeezing, can not too soon, in order to avoid cake slag oozes out.

Filter after D, crude oil precipitation 36h, obtain processed oil.

After crude oil is precipitated 36h, oil is evenly crossed through flame filter press and filters impurity, obtain processed oil

The present invention can be used for special oil and produces, and is applicable to nutritive value and health care's edible fat production, accomplishes pollution-free, less energy-consumption.

Claims

1. produce a working method for Fructus Maydis oil, it is characterized in that comprising the steps:

A, to peel off with decorticator, obtain maize germ;

B, airing is carried out to maize germ, control water ratio 3%-5%;

C, the maize germ hydropress dried is added extrusion crude oil;

Maize germ is made cake and puts into hydropress, often squeeze and throw cake 20-25 block, every block is about 4-6kg, equably pressurized hydraulic low pressure, when making pressure to 110-120MPa, low pressure is transferred to high pressure, and uniform pressurization is to during 280-300MPa, during squeezing, can not be too fast, in order to avoid cake slag oozes out.

Filter after D, crude oil precipitation 36 ~ 48h, obtain processed oil.