CN103555416A - Production method of special-flavor type rapeseed oil - Google Patents

Abstract

The invention discloses a production method of special-flavor type rapeseed oil. The production method comprises the following steps: selecting rapeseeds of over three-level national standards as production materials, and clearing and removing impurities for the rapeseed materials; carrying out flaking treatment on the cleared rapeseeds, roasting rapeseed pieces which are 0.2mm thick by flaking for 40 minutes in a steaming-roasting pot of 250 DEG C-260 DEG C, and rolling the rapeseed pieces in an oil press to obtain rapeseed crude oil; pumping the crude oil into a filter for removing particle impurities, pumping the filtered crude oil into an oil refining pot, adding hot water of 80 DEG C-90 DEG C, wherein the amount of the hot water is twice of phosphor content in crude oil, and stirring for 15 minutes at a speed of 30 revolutions/minute; adding a perlite filter aid which accounts for 1% of the total weight of the crude oil, and filtering to obtain finished product rapeseed oil which is full-bodied in flavor. The production method disclosed by the invention has the advantages of being simple in process and strong in controllability, can be used for effectively controlling the eligibility of oil products; the obtained finished product oil has very full-bodied rapeseed oil flavor.

Description

The production method of special odor type rapeseed oil

Technical field

The present invention relates to the production method of rapeseed oil, especially relate to a kind of production method of special odor type rapeseed oil.

Background technology

Five layers of cooking pot of rapeseed oil process using of traditional mode of production, the hot steam that directly sprays into 180 ℃ of left and right in Semen Brassicae campestris is steamed stir-fry processing, the drawback of this production technique is, steam the pigment of Semen Brassicae campestris epidermis while frying under the effect of moisture, more transfers in oil product, the rapeseed oil color and luster that tradition is squeezed out is darker, oil quality index difficulty reaches the standard of three grades of rapeseed oils of GB, also follow-up workshop section is caused to higher processing cost, simultaneously also because steam the lower insufficient fragrance that causes processed oil of vapor temperature while frying.

Summary of the invention

The object of the present invention is to provide a kind of production method of not destroying the rapeseed oil of grease structure and aromatic flavour.

For achieving the above object, the present invention can take following technical proposals:

The production method of special odor type rapeseed oil of the present invention, it comprises the steps:

The first step, selects three grades of Semen Brassicae campestris more than GB as raw materials for production;

Second step, clears up removal of impurities to Semen Brassicae campestris raw material;

The 3rd step, rolls embryo by the Semen Brassicae campestris of having cleared up and processes, and is rolled into the vegetable seed sheet of thickness 0.2mm;

The 4th step, enters the good vegetable seed sheet of rolling dry curing 40 minutes in the cooking pot of 250-260 ℃;

The 5th step, the vegetable seed sheet after the 4th step is cured enters oil press zhai rolling, obtains vegetable seed crude oil;

The 6th step, the crude oil that the 5th step is obtained pumps into and in filter, removes by filter granule foreign;

The 7th step, the crude oil after filtration pumps in oil refining cauldron again, adds the hot water of 80-90 ℃ by the twice of phosphorus content in crude oil, and stirs 15 minutes with the speed of 30 revs/min;

The 8th step, adds pearlite filtering aid by 1% of crude oil gross weight, obtains the finished product rapeseed oil of aromatic flavour after filtration.

The invention has the advantages that technique is simple, handling strong, can effectively control oil product qualification, the processed oil obtaining has very strong rapeseed oil fragrance.Technique of the present invention has guaranteed the essential characteristic of pressed oil, do not destroy this body structure of grease, utilize the remaining temperature after squeezing grease to carry out degumming process, energy-saving and cost-reducing, processed oil aromatic flavour, color and luster are bright, without being the beautiful oil product of blending therein light colour of appearance, kept the desirable mouth feel of rapeseed oil original flavor.

Embodiment

The production method of special odor type rapeseed oil of the present invention, it comprises the steps:

The first step, select three grades of Semen Brassicae campestris more than GB as raw materials for production, the vegetable seed standard of selecting is: oleaginousness >=38%, immature kernel≤6%, thermal damage grain≤1%, sprouted kernel≤2%, grain≤2% that mildews, impurity≤3%, moisture≤8%, color and luster smell are normal;

Second step, clears up removal of impurities to Semen Brassicae campestris raw material; General available TQLZ100 vibratory screening apparatus, the stalk in removal vegetable seed, Rapeseed Shell, sandy soil, stone etc.;

The 3rd step, rolls embryo by the Semen Brassicae campestris of having cleared up and processes, and can select YYPY2*80*150 hydraulic rolling mill to be rolled into the vegetable seed sheet of thickness 0.2mm;

The 4th step, enters in five layers of cooking pot of ZXZCLA300X6 dry curing 40 minutes at 250-260 ℃ of temperature by the good vegetable seed sheet of rolling, can guarantee that aromatic flavour and the color and luster of the processed oil that finally obtains is limpid through the dry vegetable seed sheet curing of high temperature;

The 5th step, the vegetable seed sheet after the 4th step is cured enters ZX32 oil press zhai ROLLING OIL, obtains vegetable seed crude oil;

The 6th step, the crude oil that the 5th step is obtained pumps in Y112M-4 filter and filters, and removes cake end and waits granule foreign;

The 7th step, crude oil after filtration pumps in oil refining cauldron again, now the temperature of crude oil can remain on 60-90 ℃, phosphorus content in test crude oil then adds the hot water of 80-90 ℃ while hot in crude oil by the twice of phosphorus content, and stirs 15 minutes with the speed of 30 revs/min, separate out hydrated phospholipid, in this step, add the stirring velocity after hot water not surpass 50 revs/min, otherwise can cause grease emulsifying due to high-speed stirring;

The 8th step, adds pearlite filtering aid by 1% of crude oil gross weight, can obtain after filtration aromatic flavour, the limpid finished product rapeseed oil of color and luster.

Claims (1)

1. a production method for special odor type rapeseed oil, is characterized in that: it comprises the steps:

The first step, selects three grades of Semen Brassicae campestris more than GB as raw materials for production;

Second step, clears up removal of impurities to Semen Brassicae campestris raw material;

The 3rd step, rolls embryo by the Semen Brassicae campestris of having cleared up and processes, and is rolled into the vegetable seed sheet of thickness 0.2mm;

The 4th step, enters the good vegetable seed sheet of rolling dry curing 40 minutes in the cooking pot of 250-260 ℃;

The 5th step, the vegetable seed sheet after the 4th step is cured enters oil press zhai rolling, obtains vegetable seed crude oil;

The 6th step, the crude oil that the 5th step is obtained pumps into and in filter, removes by filter granule foreign;

The 7th step, the crude oil after filtration pumps in oil refining cauldron again, adds the hot water of 80-90 ℃ by the twice of phosphorus content in crude oil, and stirs 15 minutes with the speed of 30 revs/min;

The 8th step, adds pearlite filtering aid by 1% of crude oil gross weight, obtains the finished product rapeseed oil of aromatic flavour after filtration.