Three-stage double-low rapeseed oil and preparation method thereof

Abstract

The invention relates to three-level double-low colza oil and preparation method thereof. The preparation method comprises the steps that roughing oil is fed into an oil refining caldron, press cake powder which account for, by mass, 1.5-2.5% of the roughing oil is added, filtering is conducted after stirring at the speed of 30-60 r / min is conducted for 5-10 minutes, and filter liquor is obtained; then, press cake powder which accounts for, by mass, 0.5-1.5% of the filter liquor is added into the filter liquor, stirring is conducted at the speed of 30-60 r / min under the condition of 15-20 DEG C for 20-30 hours, filtering is conducted again, and aroma concentrated oil is obtained; the aroma concentrated oil is mixed with first-level colza oil obtained after refining processing is conducted, and the three-level double-low colza oil is obtained. The preparation method of the three-level double-low colza oil achieves the technological purposes of preparation of colza, and the generation, reserve, repair and sustaining of aroma of the colza oil in the preparation process, and the finished three-level double-low colza oil is made to be thick, pure and strong in aroma.

Description

technical field [0001] The invention relates to the field of edible oil, in particular to a third-grade double-low 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...

AI Technical Summary

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 third-grade rapeseed on the market Oil does not have strong fragrance characteristics