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Method for pre-treating oil crop seeds by using microwave

A technology of oil crops and microwave treatment, which is applied in the production/processing of edible oil/fat, which can solve the problem of low oil yield in cold pressing, achieve shortened processing time, high-intensity uniform heating, and improve oil yield in cold pressing rate effect

Inactive Publication Date: 2010-12-15
INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared to hot pressing, the oil yield of cold pressing is relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for microwave pretreatment of oil crop seeds, comprising the steps of:

[0028] (1) Moisture adjustment: take by weighing 100kg rapeseeds whose moisture mass content is 7.6% through cleaning and removing external impurities such as clods, fruit shells, stalks, iron nuggets, and slowly add 5.4kg of water while stirring in the conditioner, and The mass water content of the rapeseed was adjusted to 13.0%, and the stirring was continued for 15 minutes after adding water, and the stirring speed was 100 rpm.

[0029] (2) Microwave treatment: spread the rapeseed on the conveyor belt of the tunnel type microwave oven, the thickness of the rapeseed is 3cm, adjust the microwave power to 4kW, microwave treatment for 6min, so that the final temperature of the rapeseed in the container reaches 120°C.

[0030] (3) Oil production by cold pressing: spread the rapeseed to room temperature (at this time, the moisture content of the rapeseed is 4.2wt%), press the oil with a cold ...

Embodiment 2

[0033] A method for microwave pretreatment of oil crop seeds, comprising the steps of:

[0034] (1) Moisture adjustment: take 50kg by weighing 50kg of peanut kernels (fruit) whose moisture mass content is 9.6% through cleaning and removing external impurities such as soil clods, peanut shells, iron nuggets, and slowly add 2.7kg of water while stirring in the conditioning machine , adjusting the mass water content of the peanuts to 15%, adding water and continuing to stir for 20 minutes at a stirring speed of 150 rpm.

[0035] (2) Microwave treatment: spread the peanut kernels on the conveyor belt of the tunnel-type microwave oven with a thickness of 2 cm, adjust the microwave power to 4.8 kW, and microwave for 4 minutes to make the final temperature of the peanut kernels in the container reach 110 °C.

[0036](3) Oil production by cold pressing: Spread the peanut kernels to cool to room temperature, remove the red coat from the peanut kernels and separate the red coat by winno...

Embodiment 3

[0039] A method for microwave pretreatment of oil crop seeds, comprising the steps of:

[0040] (1) Moisture adjustment: take by weighing 100kg sunflower seeds whose moisture mass content is 6.0% through cleaning and removing external impurities such as clods, fruit shells, stalks, iron nuggets, slowly add water while stirring in the conditioner, and sunflower seeds The mass water content of the mixture was adjusted to 7.0%, and the stirring was continued for 5 minutes after adding water, and the stirring speed was 50 rpm.

[0041] (2) Microwave treatment: spread the sunflower seeds with adjusted water content on the conveyor belt of the tunnel microwave oven. 80°C.

[0042] (3) Oil production by cold pressing: spread the sunflower seeds to room temperature (at this time, the water content of the sunflower seeds is 4.2wt%), press the oil with a cold press, and the oil output temperature is 45°C.

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Abstract

The invention belongs to the food processing field, and particularly relates to a microwave treatment method before oil crop seeds are cold-pressed to produce oil. A method for pre-treating oil crop seeds by using microwave is characterized by comprising the following steps of: (1) adjusting the mass water content of the oil crop seeds to between 7 and 30 percent, and stirring the oil crop seeds uniformly; (2) uniformly spreading the oil crop seeds after the water content adjustment in a container, adjusting microwave power and microwave time, and performing microwave treatment on the oil crop seeds to obtain a final temperature of between 80 and 150 DEG C; and (3) spreading and cooling the oil crop seeds after the microwave treatment, and then performing cold pressing or peeling and cold pressing to produce oil. The method for treating the oil crop seeds is favorable for increasing the yield of cold-pressed oil and improving the quality of the cold-pressed oil.

Description

technical field [0001] The invention belongs to the field of food processing, and in particular relates to a method of microwave treatment before the oil crop seeds are cold-pressed to make oil. The method is beneficial to increase the yield of cold-pressed oil and improve the quality of the cold-pressed oil after treating the oil crop seeds. . Background technique [0002] Oil crops are the most important source of vegetable oil and protein, and they play an important role in ensuring the effective supply of oil and protein, improving food structure, and promoting the development of aquaculture and processing industries. Per capita oil and protein consumption is one of the important indicators to measure people's living standards, and oilseed cake is also a high-quality feed protein resource for the development of animal husbandry. At present, the annual planting scale of oil crops in my country (400 million mu), the output value of planting industry (150 billion yuan) and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D7/04
Inventor 黄凤洪杨湄刘昌盛李文林黄庆德万楚筠钮琰星郭萍梅邓乾春
Owner INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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