CN102766536A

CN102766536A - Flavor onion oil and preparation method thereof

Info

Publication number: CN102766536A
Application number: CN2012102889711A
Authority: CN
Inventors: 高洋
Original assignee: TIANJIN CHUNSHENG HALAL FOODS CO Ltd
Current assignee: TIANJIN CHUNSHENG HALAL FOODS CO Ltd
Priority date: 2012-08-14
Filing date: 2012-08-14
Publication date: 2012-11-07

Abstract

The invention relates to flavor onion oil and a preparation method thereof. The preparation method includes the following steps of (1) preparing an onion, removing the peel of the onion, slicing, performing a mechanical comminution until a uniform onion pulp is obtained, adding water in the uniform onion pulp, uniformly mixing and soaking in warm water at the temperature between 20 DEG C and 35 DEG C for 30 to 60 minutes; (2) reducing pressure, steam distillating for 2 to 3.5 hours, cooling with a brine ice of 5 DEG C below zero and collecting a distillate; and (3) extracting with ethyl acetate for three times, mixing an extract liquor, adding anhydrous sodium sulfate to dehydrate, and recycling the ethyl acetate to obtain the onion oil. The flavor onion oil and the preparation method thereof have the advantages that the prepared flavor onion oil has good smell and color, the flavor substance is well preserved, and the flavor onion oil has a unique aromatic rich flavor of the onion.

Description

A kind of local flavor onion powder and preparation method thereof

Technical field

The invention belongs to food processing field, relate to a kind of onion powder, improve the added value of onion processing, satisfy the demand of market, relate in particular to a kind of local flavor onion powder and preparation method thereof the onion local flavor.

Background technology

Onion powder is the seasonings of food service industry, is again the raw material of many functional foodstuffs, has become the commodity that supply falls short of demand on the world market in recent years.The technology that onion powder in the market extracts; Mostly be the water at atmospheric pressure vapor distillation, make the onion powder product lose fresh onion local flavor, product has unpleasant odor; Color is darker; Major cause is that when flavour substances and water azeotropic, some heat-labile activeconstituentss are decomposed because distillation temperature is high.Therefore develop high-quality onion powder, market outlook are wide.

Summary of the invention

The objective of the invention is to overcome the deficiency of prior art, a kind of local flavor onion powder and preparation method thereof is provided, give full play to the seasoning effect of onion, improve the yield and the quality of onion powder, obtain to have the high-quality onion powder of fresh onion local flavor.

The technical scheme that the present invention adopts is:

A kind of local flavor onion powder, this local flavor onion powder is prepared by the method that comprises the steps:

1), get onion, the homogenate of mechanical disintegration to onion is carried out in the peeling section, in onion homogenate, adds water, mixing soaks 30-60min 20-35 ℃ of following temperature;

2), reduced steam distills distillation 2-3.5h ,-5 ℃ of icy salt solutions coolings, collection distillate;

3), with ethyl acetate extraction 3 times; Hybrid extraction liquid adds anhydrous Na ₂SO ₄ETHYLE ACETATE is reclaimed in dehydration, gets onion powder.

Preferably, the mass ratio of onion homogenate and water is 1:1 in the said step 1);

Preferably, said step 2) reduced steam distillatory condition is: 5-20kPa vacuum tightness and 50-70 ℃ temperature;

Preferably, said anhydrous Na ₂SO ₄Addition be 8% of onion homogenate quality.

Particularly, the present invention also provides a kind of preparation method of onion powder, comprises the steps:

1), get onion, the homogenate of mechanical disintegration to onion is carried out in the peeling section, adds the water mixing by mass ratio 1:1, soaks 30-60min 20-35 ℃ of following temperature;

2), under 5-20kPa vacuum tightness and 50-70 ℃, carry out the reduced steam distillation, distillation 2-3.5h, distillate is collected in-5 ℃ of icy salt solutions coolings;

3), with 40-60ml ethyl acetate extraction 3 times; Hybrid extraction liquid adds anhydrous Na ₂SO ₄ETHYLE ACETATE is reclaimed in dehydration, gets onion powder, wherein anhydrous Na ₂SO ₄Addition be 8% of onion homogenate quality.

Advantage and positively effect that the present invention has are:

The present invention provides a kind of local flavor onion powder and preparation method thereof, and the present invention selects the reduced steam distillation for use, along with the decline boiling point decline of pressure, thus the destruction of having reduced the thermally labile active substance, the yield and the quality of raising onion powder.The local flavor onion powder smell that the inventive method makes is good, and color is better, and flavour substances is preserved better, the peculiar aromatic flavour of onion.

Embodiment

Through specific embodiment the present invention is described further below, but does not limit protection scope of the present invention.

Embodiment 1

A kind of preparation method of local flavor onion powder comprises the steps:

1), the homogenate of mechanical disintegration to onion is carried out in onion peeling section, get the homogenate of 100g onion to wherein adding 100g water, mixing soaks 60min 25 ℃ of following temperature.

2), under 8kPa vacuum tightness and 60 ℃, carry out the reduced steam distillation, distillation 3h, distillate is collected in-5 ℃ of icy salt solutions coolings.

3), with 60ml ethyl acetate extraction 3 times; Mixed extraction liquid adds the 8g anhydrous Na ₂SO ₄ETHYLE ACETATE is reclaimed in dehydration, gets onion powder.

The above; It only is preferred embodiment of the present invention; Be not that technical scheme of the present invention is done any pro forma restriction; Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.

Claims

1. local flavor onion powder; 1), get onion it is characterized in that: this local flavor onion powder is prepared by the method that comprises the steps:, the homogenate of mechanical disintegration to onion is carried out in the peeling section, in onion homogenate, adds water; Mixing soaks 30-60min 20-35 ℃ of following temperature; 2), reduced steam distills distillation 2-3.5h ,-5 ℃ of icy salt solutions coolings, collection distillate; 3), with ethyl acetate extraction 3 times; Hybrid extraction liquid adds anhydrous Na ₂SO ₄ETHYLE ACETATE is reclaimed in dehydration, gets onion powder.

2. according to the said local flavor onion powder of claim 1, it is characterized in that: the mass ratio of onion homogenate and water is 1:1 in the said step 1).

3. according to claim 1 or 2 said local flavor onion powders, it is characterized in that: said step 2) reduced steam distillatory condition is: 5-20kPa vacuum tightness and 50-70 ℃ temperature.

4. according to each said local flavor onion powder of claim 1-3, it is characterized in that: said anhydrous Na ₂SO ₄Addition be 8% of onion homogenate quality.

5. the preparation method of an onion powder is characterized in that: comprise the steps:

1), get onion, the homogenate of mechanical disintegration to onion is carried out in the peeling section, adds the water mixing by mass ratio 1:1, soaks 30-60min 20-35 ℃ of following temperature; 2), under 5-20kPa vacuum tightness and 50-70 ℃, carry out the reduced steam distillation, distillation 2-3.5h, distillate is collected in-5 ℃ of icy salt solutions coolings; 3), with 40-60ml ethyl acetate extraction 3 times; Hybrid extraction liquid adds anhydrous Na ₂SO ₄ETHYLE ACETATE is reclaimed in dehydration, gets onion powder, wherein anhydrous Na ₂SO ₄Addition be 8% of onion homogenate quality.