Rapeseed oil processing method

A processing method and technology of rapeseed oil, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problem of increased consumption of raw and auxiliary materials for rapeseed oil refining, low trans fatty acid production, and loss of neutral oil Increase and other problems, to achieve the effect of simplifying the deacidification process of conventional alkali refining, reducing the water consumption of degumming, and reducing the loss of neutral oil

Active Publication Date: 2015-09-09
WUHAN POLYTECHNIC UNIVERSITY
View PDF11 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the processing of rapeseed oil, general-purpose refining technology is commonly used in the prior art, which generally has serious over-processing problems, which increases the amount of raw and auxiliary materials used in rapeseed oil refining, increases the consumption and energy consumption of oil refining, and processes waste water. , The discharge of waste residues exceeds the standard, which damages the environment, and also causes the original nutrients in the rapeseed oil to be removed by over-processing, resulting in a decline in the nutritional quality of the rapeseed oil. At the same time, over-processing also makes trans fatty acids in the oil The content of harmful oil accompanying substances increases, which reduces the safety of oil consumption
[0003] In the existing patent CN102293264A "A Moderately Processed Vegetable Oil and Its Preparation Method", a combination of processes such as twice degumming, low-temperature alkali refining, waste clay pre-decolorization-clay decolorization, and combined tower deodorization is used to moderately refine the oil, although This patent adopts twice degumming and low-temperature alkali refining technology, and the effect of degumming and deacidification is better, but consumes a lot of water and produces a lot of wastewater, which increases the difficulty of wastewater treatment, and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rapeseed oil processing method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] Step 1. Preparation of crude rapeseed oil: crude rapeseed oil is obtained by pressing or leaching from double-low rapeseed. The main indicators of the crude rapeseed oil are as follows: the phosphorus content is 0.62%, and the oleic acid in the fatty acid composition is 51-70%, linoleic acid 15-30%, linolenic acid 5-14%, vitamin E 70-90mg / 100g, phytosterol 0.4-0.5%;

[0022] Step 2, subjecting the rapeseed crude oil prepared in step 1 to ultrasonic-assisted phospholipase C degumming treatment, the ultrasonic-assisted phospholipase C degumming treatment process is: heating the prepared rapeseed crude oil to 60-70°C, Add a citric acid solution with an oil weight of 0.09-0.12% and a concentration of 45%. After homogeneous mixing, stir at 45°C and keep it warm for 25-35 minutes, then add phospholipase C with a concentration of 0.1%. The oil weight is 12-16mL / kg. After homogeneous mixing, add soft water with an oil weight of 2-4%, and assist degumming at an ultrasonic freque...

Embodiment 1

[0027] Heat the prepared rapeseed crude oil to 60°C, add a citric acid solution with an oil weight of 0.1% and a concentration of 45%, after homogeneous mixing, stir at 45°C and keep it warm for 30 minutes, then add a % phospholipase C, and the addition amount is 16mL / kg of the oil weight. After homogeneous mixing, add soft water with 2% oil weight, and assist degumming under the condition of ultrasonic frequency of 53KHz for 1.5 hours. At 4500r / min, centrifuge for 20 minutes to obtain oil feet and degummed rapeseed oil; heat the degummed rapeseed oil to 75°C, add phosphoric acid with an oil weight of 0.03% and a concentration of 75%, and stir after homogeneous mixing And keep warm for acid reaction for 15 minutes, cool down to 40°C and then add lye with a concentration of 10%, stir and keep warm for 40 minutes for mixed reaction, after the reaction is completed, get soapstock and primary deacidified rapeseed oil by centrifugal separation , the primary deacidified rapeseed oil...

Embodiment 2

[0029] Heat the prepared rapeseed crude oil to 70°C, add a citric acid solution with an oil weight of 0.12% and a concentration of 45%, after homogeneous mixing, stir at 45°C and keep it warm for 25 minutes, then add a % phospholipase C, and the addition amount is 12mL / kg of the oil weight. After homogeneous mixing, add soft water with 4% oil weight, and assist degumming for 2.0 hours under the condition of ultrasonic frequency of 53KHz. Centrifuge at 5000r / min for 30 minutes to obtain oily feet and degummed rapeseed oil; heat the degummed rapeseed oil to 80°C, add phosphoric acid with an oil weight of 0.04% and a concentration of 75%, and stir after homogeneous mixing And keep it warm for acid reaction for 15 minutes, cool down to 40°C, add lye with a concentration of 14%, stir and keep warm for 45 minutes of mixed reaction, after the reaction is completed, get soapstock and primary deacidified rapeseed oil by centrifugation , the primary deacidified rapeseed oil was vacuum-d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a rapeseed oil processing method. The rapeseed oil processing method comprises the following steps: 1) preparing crude rapeseed oil; 2) performing ultrasonic assisted phospholipase C degumming treatment on the crude rapeseed oil, and performing centrifugal separation after degumming to obtain degummed rapeseed oil; 3) performing anhydrous long-mixing deacidification treatment on the degummed rapeseed oil to obtain deacidified rapeseed oil; 4) adding spent earth into the deacidified rapeseed oil to perform pre-decolorizing treatment to obtain pre-decolorized rapeseed oil, and adding attapulgite and activated carbon into the pre-decolorized rapeseed oil to perform re-decolorizing treatment to obtain re-decolorized rapeseed oil; 5) performing deodorizing treatment on the re-decolorized rapeseed oil to obtain finished product rapeseed oil. The rapeseed oil processing method has the advantages of good safety and environmental-friendliness, simple process, convenience in operation, low cost and high refining rate, and is applicable to industrial production of rapeseed oil.

Description

technical field [0001] The invention relates to the technical field of oil processing, in particular to a processing method of rapeseed oil. Background technique [0002] Rapeseed oil is what we commonly call rapeseed oil, also called coriander oil. It is a transparent or translucent liquid obtained by pressing or leaching the seeds of the cruciferous plant Brassica (that is, rapeseed). It is the most commonly eaten oil in my country. one. Studies have shown that among vegetable oils, rapeseed oil contains the least saturated fatty acid, only 6%, and unsaturated fatty acid accounts for more than 90%. Rapeseed oil is also rich in vitamin E and oleic acid, linoleic acid, linolenic acid and so on. The human body has a very high digestion and absorption rate of rapeseed oil, and the digestion and utilization rate can reach 99%. Its nutrients can be fully absorbed by the human body, which can promote growth and development, maintain physiological metabolism, reduce cholesterol l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C11B1/00C11B3/00
Inventor 何东平胡传荣罗质叶展
Owner WUHAN POLYTECHNIC UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap