Method for extracting vegetable oil under subcritical low temperature

A subcritical and vegetable oil technology, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problems of high energy consumption of equipment, destruction of biologically active components, low oil yield, etc., to improve the quality of oil products , reduce energy consumption, improve the effect of oil yield

Inactive Publication Date: 2017-05-17
上海时迅农业科技发展有限公司
View PDF5 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, currently on the market, methods for extracting vegetable oil from plant raw materials include pressure extraction, solvent extraction, distillation, pulping extraction, precision pressing, etc. Among them, the solvents used in the solvent extraction method include: ethanol, acetone, cyclohexane, Petroleum ether, etc., and its rectificatio

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
  • Method for extracting vegetable oil under subcritical low temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: the extraction of tomato seed oil

[0024] S1: Pretreatment: select tomato seeds as raw materials, place them in a low-temperature ventilated place and dry them at 40°C for 48 hours until the moisture content is 4%, then put the dried tomato seeds into a grinder for crushing, and the particles are not higher than 40 mesh;

[0025] S2: Subcritical extraction: Put 400g tomato seed particles into the subcritical extraction kettle, control the vacuum pump to make the vacuum degree in the subcritical extraction kettle and the separation kettle be -0.04Mpa; inject the extraction solvent butane into the subcritical extraction kettle to Submerge the sample completely, turn on the hot water heating valve to heat, control the temperature and extraction pressure in the extraction kettle, the temperature is 35°C, the pressure is 0.05Mpa, repeat the extraction four times, the first extraction time is 60min, and the second extraction time is 40min , the third extraction...

Embodiment 2

[0028] Embodiment 2: the extraction of pumpkin seed oil

[0029] S1: Pretreatment: select pumpkin seeds as raw materials, place them in a low-temperature and ventilated place and dry them at 40°C for 48 hours until the moisture content is 4%, then put the dried pumpkin seeds into a grinder for crushing, and the particles are not higher than 40 mesh;

[0030] S2: Subcritical extraction: Put 400g of pumpkin seed particles into the subcritical extraction kettle, control the vacuum pump to make the vacuum degree in the subcritical extraction kettle and the separation kettle be -0.04Mpa; inject the extraction solvent butane into the subcritical extraction kettle to Submerge the sample completely, turn on the hot water heating valve to heat, control the temperature and extraction pressure in the extraction kettle, the temperature is 35°C, the pressure is 0.05Mpa, repeat the extraction four times, the first extraction time is 60min, and the second extraction time is 40min , the third...

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 relates to the technical field of modern agriculture and especially relates to a method for extracting vegetable oil under a subcritical low temperature. The method comprises the following steps: S1) selecting seeds as raw materials, drying and putting the dried seeds into a grinder for grinding, wherein the grain size is not more than 40-mesh; S2) putting the seed grains into a subcritical extraction kettle, controlling a vacuum pump to control the vacuum degree in the subcritical extraction kettle and a separating kettle, injecting an extracting solvent butane till a sample is completely soaked, turning on a hot water heating valve for heating, and controlling the temperature and the extraction pressure in the extraction kettle and repeating extraction for 4 times; S3) after the ending of extraction, performing compressor desolvation on the mixture, turning on a valve at the lower end of the separating kettle after the ending of desolvation and collecting the crude seed oil; and S4) performing suction filtration on the prepared crude seed oil, thereby acquiring the refined seed oil. According to the method for extracting vegetable oil under the subcritical low temperature provided by the invention, the oil yield is increased, the resource waste is reduced, the energy consumption is lowered and the oil quality is promoted.

Description

technical field [0001] The invention relates to the technical field of modern agriculture, in particular to a method for subcritical low-temperature extraction of vegetable oil. Background technique [0002] Subcritical fluid extraction (Sub-critical fluid extraction technology) is the use of subcritical fluid as the extraction agent in a closed, oxygen-free environment. In the low-pressure pressure vessel, according to the principle of similar solubility of organic substances, through the molecular diffusion process of the extraction material and the extraction agent during the soaking process, the fat-soluble components in the same material are transferred to the liquid extraction agent, and then evaporated under reduced pressure The process of separating the extractant from the target product is a new type of extraction and separation technology that finally obtains the target product. Plants such as sunflower seeds, tomato seeds, pumpkin seeds, almonds, and nuts have a ...

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): C11B1/04C11B1/10C11B3/00
CPCC11B1/04C11B1/10C11B3/008
Inventor 蔡卫国田如梅
Owner 上海时迅农业科技发展有限公司
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