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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, can solve the problems of low oil yield in cold pressing, achieve the effects of simplifying processing procedures, improving oxidation stability, and reducing processing costs

Inactive Publication Date: 2012-09-05
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 microwave pretreatment method for oil crop seeds, which includes the following steps:

[0028] (1) Adjust moisture: weigh 100kg of rapeseed with 7.6% moisture content after cleaning to remove foreign impurities such as soil, husk, straw, iron, etc., and slowly add 5.4kg of water in the conditioner while stirring. 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 microwave oven. The thickness of the rapeseed is 3cm, the microwave power is adjusted to 4kW, and the microwave treatment is 6min to make the final temperature of the rapeseed in the container reach 120℃.

[0030] (3) Cold-squeezed oil production: the rapeseed is spread and aired to room temperature (at this time, the water content of the rapeseed is detected to be 4.2 wt%), and the oil is squeezed with a cold press, ...

Embodiment 2

[0033] A microwave pretreatment method for oil crop seeds, which includes the following steps:

[0034] (1) Adjust moisture: weigh 50kg of peanut kernels (fruit) with a moisture content of 9.6% after cleaning to remove foreign impurities such as soil, peanut shells, iron, etc., and slowly add 2.7kg of water while stirring in the conditioner , Adjust the mass water content of the peanut fruit to 15%, continue to stir for 20 minutes after adding water, and the stirring speed is 150 rpm.

[0035] (2) Microwave treatment: spread the peanut kernels on the conveyor belt of the tunnel microwave oven. The peanut kernels are laid flat with a thickness of 2cm. The microwave power is adjusted to 4.8kW and the microwave treatment is carried out for 4 minutes to make the final temperature of the peanut kernels in the container reach 110°C.

[0036] (3) Cold-pressed oil production: spread the peanut kernels to room temperature, remove the red coat of the peanut kernels and separate the red coats b...

Embodiment 3

[0039] A microwave pretreatment method for oil crop seeds, which includes the following steps:

[0040] (1) Adjust moisture: Weigh 100 kg of sunflower seeds with 6.0% moisture content after cleaning to remove soil, husk, straw, iron and other foreign impurities. Stir in the conditioner and slowly add water to the sunflower seeds. The water content of the mass is adjusted to 7.0%, and the stirring is continued for 5 minutes after adding water, and the stirring speed is 50 rpm.

[0041] (2) Microwave treatment: Spread the sunflower seeds with the adjusted moisture content on the conveyor belt of the tunnel microwave oven. The thickness of the sunflower seeds is 1cm. The microwave power is adjusted to 2kW and the microwave treatment is 2min to make the final temperature of the sunflower seeds in the container reach 80°C.

[0042] (3) Cold-squeezed oil production: the sunflower seeds are aired to room temperature (at this time, the water content of the sunflower seeds is 4.2 wt%), and t...

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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 coldpressing 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 specifically relates to a method for microwave treatment before oil crop seeds are cold pressed to produce oil. After the oil crop seeds are treated by the method, it is beneficial to increase the yield of cold pressed oil and improve the quality of cold pressed oil. . Background technique [0002] Oil crops are the most important source of vegetable oils and proteins, and they play an important role in ensuring the effective supply of oils and proteins, 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 meal is also a high-quality feed protein resource for the development of animal husbandry. At present, the annual planting scale of oil crops (400 million mu), the output value of planting industry (150 billion yuan), and the empl...

Claims

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Application Information

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Patent Type & Authority Patents(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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