阅读说明：本技术 一种菜籽油加工方法 (Rapeseed oil processing method ) 是由 马斌 蒲俊陶 于 2020-04-28 设计创作，主要内容包括：本发明公开了一种菜籽油加工方法,包括(1)原料准备,取菜籽和芝麻充分混合；(2)烘干初榨,将菜籽和芝麻加入烘箱中烘干,烘干后进行初榨得到毛油；(3)脱胶,在毛油加入磷酸、碳酸和适量水并同时进行加热搅拌,脱胶后的毛油过滤得到上清油；(4)脱酸,在上清油中加入碱液并加热搅拌后用软水洗涤,通过真空干燥得到脱酸油；(5)脱色,在脱酸油放入活性白土进行加热搅拌后过滤得到菜籽油；上述加热搅拌是指温度为50～70℃。本发明在加工过程中加入脱胶-脱酸-脱色处理,是制备的菜籽油中的在杂质少且不易被氧化；采用相对低温的来对菜籽油进行脱胶、脱色以及脱酸处理,可完整保留菜籽油中的有益物质,提供菜籽油的营养价值。(The invention discloses a rapeseed oil processing method, which comprises (1) preparing raw materials, and fully mixing rapeseed and sesame; (2) drying and primarily pressing, namely adding the rapeseed and the sesame into a drying oven for drying, and primarily pressing after drying to obtain crude oil; (3) degumming, namely adding phosphoric acid, carbonic acid and a proper amount of water into the crude oil, heating and stirring simultaneously, and filtering the degummed crude oil to obtain supernatant oil; (4) deacidifying, namely adding alkali liquor into the supernatant oil, heating and stirring, washing with soft water, and drying in vacuum to obtain deacidified oil; (5) decolorizing, namely adding activated clay into deacidified oil, heating and stirring, and filtering to obtain rapeseed oil; the heating and stirring are carried out at a temperature of 50-70 ℃. According to the invention, degumming, deacidification and decoloration treatment are added in the processing process, so that the prepared rapeseed oil has few impurities and is not easy to oxidize; the rapeseed oil is degummed, decolored and deacidified at a relatively low temperature, so that beneficial substances in the rapeseed oil can be completely reserved, and the nutritional value of the rapeseed oil is provided.)

1. A rapeseed oil processing method is characterized by comprising the following steps:

(1) preparing raw materials, namely taking rapeseed and sesame with the mass ratio of 0.01 to the rapeseed, and fully mixing the rapeseed and the sesame;

(2) drying and preliminary pressing, namely adding the rapeseeds and the sesames into a drying oven for drying, wherein the drying temperature is 100-120 ℃, and the drying time is 30-40 min; drying and then carrying out preliminary pressing to obtain crude oil;

(3) degumming, namely adding phosphoric acid, carbonic acid and a proper amount of water into the crude oil, heating and stirring simultaneously, wherein the degumming time is 30-40 min, and filtering the degummed crude oil to obtain supernatant oil;

(4) deacidifying, namely adding alkali liquor into the supernatant oil, heating and stirring, washing with soft water, and finally performing vacuum drying to obtain deacidified oil;

(5) decolorizing, namely adding activated clay into deacidified oil, heating and stirring, and filtering to obtain rapeseed oil;

wherein the heating and stirring are carried out at the temperature of 50-70 ℃ and the stirring speed of 3000-4000 r/min.

2. Rapeseed oil processing method according to claim 1, characterized in that: stirring is carried out in the drying process, and the stirring speed is 100 r/min.

3. Rapeseed oil processing method according to claim 1, characterized in that: the water amount added in the soft water washing process is 16-18% of the mass of the rapeseed oil.

4. Rapeseed oil processing method according to claim 1, characterized in that: the particle size of the argil is 100-150 meshes.

Technical Field

The invention relates to the field of rapeseed oil processing, and particularly relates to a rapeseed oil processing method.

Background

Rapeseed oil is commonly called rapeseed oil, also called rapeseed oil, and has sweet, pungent and warm properties, and can moisten dryness, kill parasites, disperse fire, and eliminate swelling and toxicity. The absorption rate of the rapeseed oil by human body is very high and can reach 99%. The raw material for extracting oil is plant seed, which generally contains a certain amount of seed phospholipid and is very important for the development of blood vessels, nerves and brains. Rapeseed oil has little or no cholesterol content, so people who control the intake of cholesterol can eat it with confidence. The high-quality rapeseed oil is pure natural pollution-free healthy edible oil with high grade and high nutritive value, and has the reputation of the oriental olive oil. The health care tea has fragrant smell and rich nutrition, has oleic acid and linoleic acid contents beneficial to human bodies and is contained in various vegetable oils, and can be used for protecting the health of patients with cardiovascular and cerebrovascular diseases and protecting the smooth blood vessels of middle-aged and elderly people. Has high nutritive value, is rich in various essential nutrients, and has the effects of resisting aging, resisting mutation, improving immunity, etc.

At present, the commonly used rapeseed oil preparation process is as follows: (1) cleaning: before cleaning, the rapeseeds are placed in a bamboo basket, the side mud in the bamboo basket is crushed by feet, and then screening is carried out to remove ash impurities and impurities in the rapeseeds; (2) seed frying: frying the cleaned rapeseed in a frying pan at the temperature of 130-140 ℃; (3) oil pressing: and (3) putting the stir-fried rapeseed in a squeezer and squeezing to obtain the rapeseed oil. The method has the advantages of low oil yield, poor quality of the obtained rapeseed oil due to no refining process, easy oxidation and high cost.

Disclosure of Invention

The invention aims to provide a processing method of rapeseed oil, which has less impurities in a rapeseed oil extract, low erucic acid content and difficult oxidative deterioration.

In order to achieve the purpose, the invention adopts the following technical scheme:

a rapeseed oil processing method comprises the following steps:

(1) preparing raw materials, namely taking rapeseed and sesame with the mass ratio of 0.01 to the rapeseed, and fully mixing the rapeseed and the sesame;

(2) drying and preliminary pressing, namely adding the rapeseeds and the sesames into a drying oven for drying, wherein the drying temperature is 100-120 ℃, and the drying time is 30-40 min; drying and then carrying out preliminary pressing to obtain crude oil;

(3) degumming, namely adding phosphoric acid, carbonic acid and a proper amount of water into the crude oil, heating and stirring simultaneously, wherein the degumming time is 30-40 min, and filtering the degummed crude oil to obtain supernatant oil;

(4) deacidifying, namely adding alkali liquor into the supernatant oil, heating and stirring, washing with soft water, and finally performing vacuum drying to obtain deacidified oil;

(5) decolorizing, namely adding activated clay into deacidified oil, heating and stirring, and filtering to obtain rapeseed oil;

wherein the heating and stirring are carried out at the temperature of 50-70 ℃ and the stirring speed of 3000-4000 r/min.

Further, stirring is carried out in the drying process, and the stirring speed is 100 r/min.

Furthermore, the water amount added in the soft water washing process is 16-18% of the mass of the rapeseed oil.

Further, the particle size of the white clay is 100-150 meshes.

According to the invention, degumming, deacidification and decoloration treatment are added in the processing process, so that the prepared rapeseed oil has few impurities and is not easy to oxidize; in addition, the rapeseed oil is degummed, decolored and deacidified at a relatively low temperature, so that beneficial substances in the rapeseed oil can be completely reserved, and the nutritional value of the rapeseed oil is provided.

Detailed Description