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Rapeseed oil and preparation method thereof

A technology of rapeseed oil and crude oil, which is applied in the field of edible oil, can solve the problems of not having a strong fragrance, achieve the effects of lasting aftertaste, reducing redness, and increasing transparency

Inactive Publication Date: 2013-07-03
湖南盈成油脂工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] With the improvement of people's material living standards, some traditional dietary habits are gradually returning. The most typical example is consumers' persistent pursuit of the strong fragrance of small mustard oil in rural areas, but the general four-grade rapeseed on the market Oil does not have strong fragrance characteristics

Method used

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific examples.

[0025] As an embodiment of the present invention, specific procedure is as follows:

[0026] one. Press section

[0027] 1. Screen, winnow, and magnetically select rapeseed to remove impurities and unqualified rapeseed, such as immature kernels, mature kernels, and mildewed kernels, so that the impurities in rapeseed are <1.0%.

[0028] 2. Dry the qualified rapeseed to make the moisture of rapeseed 9.0±1.0%.

[0029] 3. Fry the rapeseed until the rapeseed kernel is brown, and the moisture of the rapeseed is 1.5±0.5%.

[0030] 4. Press the fried rapeseed to obtain oil press cake and crude oil with residue; put the crude oil with residue in the oil tank to remove the oil residue, then remove the oil residue and press it back; finally, use bag type Filters and plate and ...

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Abstract

The invention discloses a preparation method of rapeseed oil. The preparation method comprises the steps as follows: rapeseeds are squeezed and filtered to obtain crude oil and an oil squeezed cake; the crude oil is put into an oil refining caldron and stirred till no bubbles exist, and the temperature of the oil refining caldron is in a range from 50 EDG C to 95 DEG C; warm water with the crude oil weight of 5-10% and edible non-iodized salt with the crude oil weight of 4-5% are added into the crude oil for hydration; after hydration, sedimentation is performed, and water and colloidal impurities subsided at the bottom of the crude oil are removed to obtain raw oil; the raw oil is dried, and water in the raw oil is removed; the temperature and the vacuum degree for drying are maintained, an adsorbent and fennel are added in the raw oil for decoloration, and the total adding amount of the adsorbent and the fennel accounts for 1-3% of the mass of the raw oil; and the decolored raw oil is filtered to obtain the rapeseed oil. The invention further discloses the rapeseed oil prepared with the preparation method. All indexes of the rapeseed oil all meet the international requirements of the four-level rapeseed oil, and intense original rapeseed oil fragrance can be maintained.

Description

technical field [0001] The invention relates to the field of edible oil, in particular to a rapeseed oil and a preparation method thereof. Background technique [0002] Before 2002, rapeseed oil ranked first in the total consumption of vegetable oil in my country. With the increase of soybean and soybean oil imports, the consumption of rapeseed oil relegated to the second place. After that, due to the increase in the amount of imported palm oil in my country, in 2006 Rapeseed oil consumption relegated to third place. In 2007, my country's rapeseed oil consumption accounted for 20.6% of the total vegetable oil consumption, slightly lower than palm oil consumption. At present, the total oil rolling of domestic rapeseed is less than 5 million tons, which only accounts for about 20% of the total annual oil consumption. [0003] High-quality rapeseed oil is a pure natural, pollution-free and healthy edible oil with high grade and high nutritional value. It has the reputation of ...

Claims

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Application Information

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IPC IPC(8): C11B1/06C11B3/16C11B3/10C11B3/00
Inventor 彭华
Owner 湖南盈成油脂工业有限公司
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