Pumpkin seed oil extraction method

A technology of pumpkin seed oil and extraction method, which is applied in the fields of edible oil/fat, fat oil/fat production, fat oil/fat refining, etc. It can solve the problems of low oil yield, incomplete extraction, and solution residue in the pressing method, and achieve guaranteed Effects of human health, reduced dosage, and easy oil extraction

Inactive Publication Date: 2017-01-25
界首市宏源家庭农场
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the extraction methods of pumpkin seed oil are mostly two kinds of pressing and leaching. The oil yield of the pressing method is low, and the leaching method uses toxic organic solvents. The extraction is incomplete, and the solution causes residues. Therefore, the market is in urgent need of a safe and non-toxic oil. How to extract poisonous pumpkin seed oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for extracting pumpkin seed oil, specifically comprising the following steps:

[0021] (1) Crushing of raw materials: select plump, mature and complete pumpkin seeds, wash, drain, crush, pass through a 200-mesh sieve, add Wahaha purified water 8 times the weight of pumpkin seeds, heat to 73°C, and perform two-stage homogenization , the pumpkin seeds are fully crushed to increase the surface area, disperse the oil particles, and be easy to extract, so as to obtain pumpkin seed powder;

[0022] (2) Enzymolysis treatment: Add compound enzyme to the pumpkin seed slurry to make the volume concentration of the compound enzyme 0.3%, mix evenly, place in a 38°C water bath, stir for 260 minutes, add protease to make the volume concentration 0.21 %, placed in a 32°C water bath, stirred for 80 minutes for enzymatic hydrolysis, destroys the tissue structure, improves the oil extraction rate, decomposes macromolecular substances, increases small and medium molecular nutrien...

Embodiment 2

[0033] A method for extracting pumpkin seed oil, specifically comprising the following steps:

[0034] (1) Crushing of raw materials: select plump, mature and complete pumpkin seeds, wash, drain, crush, pass through a 240-mesh sieve, add Wahaha purified water 9 times the weight of pumpkin seeds, heat to 74°C, and perform two-stage homogenization , the pumpkin seeds are fully crushed to increase the surface area, disperse the oil particles, and be easy to extract, so as to obtain pumpkin seed powder;

[0035] (2) Enzymolysis treatment: Add compound enzyme to the pumpkin seed slurry to make the volume concentration of the compound enzyme 0.4%, mix evenly, place in a 39°C water bath, stir for 270 minutes, add protease to make the volume concentration 0.22 %, placed in a 33°C water bath, stirred for 90 minutes for enzymatic hydrolysis, destroys the tissue structure, improves the oil extraction rate, decomposes macromolecular substances, increases small and medium molecular nutrien...

Embodiment 3

[0046] A method for extracting pumpkin seed oil, specifically comprising the following steps:

[0047] (1) Crushing of raw materials: select plump, mature and complete pumpkin seeds, wash, drain, crush, pass through a 260-mesh sieve, add Wahaha purified water 10 times the weight of pumpkin seeds, heat to 75°C, and perform two-stage homogenization , the pumpkin seeds are fully crushed to increase the surface area, disperse the oil particles, and be easy to extract, so as to obtain pumpkin seed powder;

[0048] (2) Enzymolysis treatment: Add compound enzyme to the pumpkin seed powder slurry to make the volume concentration of the compound enzyme 0.5%, mix evenly, place in a 40°C water bath, stir for 280 minutes, add protease to make the volume concentration 0.23 %, placed in a 34°C water bath, stirred for 100 minutes for enzymatic hydrolysis, destroys the tissue structure, improves the oil extraction rate, decomposes macromolecular substances, increases small and medium molecula...

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Abstract

The invention relates to the technical field of food and discloses a pumpkin seed oil extraction method. The method includes steps of raw material crushing, enzymolysis, freeze drying, oil extraction, purification for refinement, packaging and storage. Obtained pumpkin seed oil is rich in nutrition and rose red in color, the extraction rate is up to 62.7%, and income is increased by 16.2%. By crushing and homogenizing of pumpkin seeds with shells, rich nutrition, oil particle dispersion and extraction rate increase are realized. By complex enzymes for damaging cell tissue structures and decomposing macromolecular substances, oil extraction is facilitated, and micromolecular nutritional components in oil are increased. By absolute ethyl alcohol extraction of the pumpkin seeds subjected to freeze drying, nutritional components are kept, absolute ethyl alcohol consumption is reduced, and subsequent decontamination procedures are simplified. By purification of coarse pumpkin seed oil through medical stone powder, nutritional components are enriched while toxic substances are removed, and purity of pumpkin seed oil reaches 97.8%. Since toxic agents are avoided in a whole extraction process, health and environment friendliness are realized, and human health is guaranteed.

Description

technical field [0001] The invention mainly relates to the field of food technology, in particular to a method for extracting pumpkin seed oil. Background technique [0002] Pumpkin seeds are the seeds of the annual vine pumpkin of Cucurbitaceae, which are rich in fatty oil, protein, carotene, vitamin B1, vitamin B2, vitamin C, cucurbitin, etc. Pumpkin seeds can be used for both medicine and food, and have good Health effects, mainly used for malnutrition, weight loss, spleen deficiency and edema, postpartum hypogalactia, whooping cough, dry cough, tapeworm, roundworm, schistosomiasis and prostate disease. [0003] Pumpkin seed oil is rich in unsaturated fatty acids, such as linolenic acid and linoleic acid. In addition, pumpkin seed oil also contains a variety of biologically active substances such as phytosterols, amino acids, vitamins, and minerals. At present, the extraction methods of pumpkin seed oil are mostly two kinds of pressing and leaching. The oil yield of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/02C11B1/10C11B3/00C11B3/10A23D9/04
CPCA23D9/04C11B1/02C11B1/025C11B1/04C11B1/10C11B3/001C11B3/008C11B3/10
Inventor 魏林涛
Owner 界首市宏源家庭农场
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