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Fermentation and extraction method for pumpkin seed oil

A technology of pumpkin seed oil and extraction method, which is applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problems of harming the human body and the environment, toxic reagent residue, complicated operation, etc., to protect the environment and promote gastric Intestinal function, the effect of speeding up the extraction process

Inactive Publication Date: 2017-02-01
刘振
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current extraction methods of pumpkin seed oil are mostly cold pressing, ether method or supercritical CO 2 The pumpkin seed oil obtained by the extraction method and cold pressing method has high nutritional content, but the efficiency is too low. The ether method is likely to cause toxic reagent residues, which will also harm the human body and the environment during the extraction process. Supercritical CO 2 The operation of the extraction method is complicated and the cost is too high, therefore, a new method for extracting pumpkin seed oil is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for extracting pumpkin seed oil by fermentation, comprising the following steps:

[0017] (1) Grinding: Choose plump, mature and complete pumpkin seeds, clean them, and crush them to 100 meshes. Grind the pumpkin seed kernels and pumpkin seed shells as a whole, save the pumpkin seed shelling procedure, improve work efficiency, and make full use of pumpkins improve the nutritional content of pumpkin seed oil, and obtain pumpkin seed powder;

[0018] (2) Enzymolysis: Add water 5 times the weight of pumpkin seed powder to the pumpkin seed powder, mix well, place in a 40°C water bath for 20 minutes, add 0.05% of the weight of pumpkin seed powder compound enzyme, keep at 40°C for enzymatic hydrolysis for 5 hour, add 0.02% trypsin by weight of pumpkin seed powder, heat it at 35°C for 2 hours for enzymolysis, decompose the structure of macromolecules, facilitate the release of small molecule nutrients, speed up the extraction process, improve work efficiency, and obta...

Embodiment 2

[0025] A method for extracting pumpkin seed oil by fermentation, comprising the following steps:

[0026] (1) Crush: Choose plump, mature, and complete pumpkin seeds, clean them, and crush them to 160 meshes, crush the pumpkin seeds and pumpkin seed shells as a whole, save the pumpkin seed shelling procedure, improve work efficiency, and make full use of pumpkins improve the nutritional content of pumpkin seed oil, and obtain pumpkin seed powder;

[0027] (2) Enzymatic hydrolysis: Add water 6 times the weight of pumpkin seed powder to the pumpkin seed powder, mix well, place in a water bath at 41°C for 23 minutes, add 0.06% of the weight of pumpkin seed powder compound enzyme, keep at 41°C for enzymatic hydrolysis for 5 hour, add 0.03% trypsin by weight of pumpkin seed powder, heat it at 36°C for 2.5 hours for enzymolysis, decompose the structure of macromolecules, facilitate the release of small molecule nutrients, speed up the extraction process, and obtain enzymolysis pumpk...

Embodiment 3

[0034] A method for extracting pumpkin seed oil by fermentation, comprising the following steps:

[0035] (1) Crush: Choose plump, mature, and complete pumpkin seeds, clean them, and crush them to 200 meshes. Crush the pumpkin seeds and pumpkin seed shells as a whole, eliminating the need for pumpkin seed shelling procedures, improving work efficiency, and making full use of pumpkins. improve the nutritional content of pumpkin seed oil, and obtain pumpkin seed powder;

[0036] (2) Enzymolysis: Add water 7 times the weight of pumpkin seed powder to pumpkin seed powder, mix well, place in 42°C water bath for 25 minutes, add 0.07% of the weight of pumpkin seed powder compound enzyme, keep at 42°C for enzymatic hydrolysis for 6 hour, add 0.04% trypsin by weight of pumpkin seed powder, keep warm for 3 hours for enzymolysis at 37°C, decompose the structure of macromolecules, facilitate the release of small molecule nutrients, speed up the extraction process, improve work efficiency,...

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Abstract

The invention relates to the field of food processing, and discloses a fermentation and extraction method of pumpkin seed oil. The method comprises the steps of smashing, enzymatic hydrolysis, fermentation, filtering and packaging. The method is simple, pumpkin seed kernels and pumpkin seed shells are integrally smashed and extracted, the pumpkin seed shelling process is omitted, the working efficiency is improved, nutrients of the pumpkin seeds are sufficiently utilized, the nutrient content of the pumpkin seed oil is increased, and the utilization rate of the pumpkin seed shells reaches 90.3%; a complex enzyme is used for performing enzymatic hydrolysis on the pumpkin seeds, the macromolecular structure is decomposed, and the extraction process is accelerated by means of release of the micromolecular nutrient content; pumpkin seed pulp obtained after enzymatic hydrolysis is subjected to dual fermentation through lactic acid bacteria and Angel beer yeast, the flavor of the pumpkin seed oil and fermentation products are increased, nutrients are enriched, the pumpkin seed oil is gradually leached out in the resting state, energy is saved, environmental protection is achieved, preliminary filtering and absolute ethyl alcohol ultrasonic extraction are performed successively, the extraction rate of the pumpkin seed oil reaches up to 45.3%, and economic income is increased by 13.7%.

Description

technical field [0001] The invention mainly relates to the field of food processing, in particular to a method for fermenting and extracting pumpkin seed oil. Background technique [0002] Pumpkin seed oil, also known as white melon seed oil, is extracted from high-quality pumpkin seeds and nuts. The nutritional value of pumpkin seed oil is comparable to that of olive oil, but its cholesterol content is much lower than that of olive oil. Therefore, it is very popular among Europeans and Americans. favor. Pumpkin seed oil is rich in nutrition, rich in unsaturated fatty acids, amino acids, vitamins, minerals and other substances, which can prevent and treat urinary system and prostate diseases, protect cardiovascular and cerebrovascular, lower blood sugar, and relieve fatigue. [0003] However, the current extraction methods of pumpkin seed oil are mostly cold pressing, ether method or supercritical CO 2 The pumpkin seed oil obtained by the extraction method and cold pressin...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B1/04C11B1/02C11B3/00
CPCC11B1/106C11B1/025C11B1/04C11B3/001
Inventor 刘振
Owner 刘振
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