Method and device for preparing garlic oil with racemate alliin as raw materials

A technology of racemic alliin and garlic oil, which is applied in the production of edible oil/fat, fat oil/fat, and fat production, can solve problems such as safety concerns and rising production costs of garlic oil, and achieve improved service life, Overcomes the effect of easy inactivation

Inactive Publication Date: 2014-01-01
JINAN UNIVERSITY
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Problems solved by technology

The biggest feature of this method is that the product obtained is a pure natural product. The disadvantage is that the equivalent content of garlic oil in garlic is only 0.3%, so it is limited by garlic resources. Especially in recent years, the price of garlic has been soaring all the way so that the production of garlic oil Costs are rising
The second method is the chemical synthesis method. The main components of the product obtained by this method are basically the same as the natural garlic oil, and the efficiency and yield of the synthesis are very high. However, it may be difficult to completely remove the chemical raw materials used in the chemical synthesis method. , so it will inevitably cause people to worry about safety, so the current synthetic garlic oil is mainly used as a feed additive

Method used

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  • Method and device for preparing garlic oil with racemate alliin as raw materials

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Step 1: Weigh 1 kg of garlic, peel it, wash it, mash it at 30°C and put it into the reactor, pump 1500 mL of 0.06 mol / L alliin solution, and feed air at the same time (the flow rate is 300 mL / min ), and then start the ultrasonic device, the frequency is 40kHz; the reaction temperature is 20°C;

[0045] Step 2, 20 minutes after the start of the reaction, add ethyl acetate with a flow rate of 100mL / h and carry out continuous extraction at room temperature to obtain the extract and the reaction phase; the extract is concentrated in vacuo at 30°C, and the concentrate is separated to obtain the garlic oil product 7.1 grams and organic solvents. Organic solvent recycling.

[0046] The conversion rate of alliin was 85%. Detected by gas chromatography, garlic oil is composed of 3-vinyl-1,2-dithiocyclohex-5-ene accounting for 70.40% (relative percentage content) and 3-vinyl-1,2-dithiocyclohex-5-ene 4-ene accounted for 12.01%, and diallyl disulfide, diallyl trisulfide and dial...

Embodiment 2

[0048] Step 1: Weigh 1 kg of garlic, peel it, wash it, mash it at 25°C, add it into the reactor 7 from the raw material feeding pipe 1, and pump 0.01 mol / L racemate from the raw material feeding pipe 1 Alliin solution is 2000mL, and air is introduced from the air feed pipe 2 (the flow rate is 200mL / min), and then the stirring paddle 3 is started at a speed of 100r / min; the reaction temperature is 20°C;

[0049] Step 2, after 10 minutes from the start of the reaction, add flow rate from the solvent feed pipe 6 as normal hexane of 50mL / h to carry out continuous extraction at room temperature to obtain the extract 4 and the reaction phase 5; drop 2mL of water from the feed pipe 16 to make It is simply mixed with the extract (incompletely miscible), the extract 4 enters the extract storage tank 9 from the extract phase discharge pipe 8, and then enters the evaporator 12 and is concentrated in vacuum at 100°C, and the concentrate passes through the cyclone separator 14 Separate and...

Embodiment 3

[0052] Step 1: Weigh 1 kg of garlic, peel it, wash it, mash it at 2°C and add it to the reactor, pump 2000 mL of 0.02 mol / L racemic alliin solution, and feed air (the flow rate is 500 mL / min), and then start the stirring paddle to stir the reaction, the rotation speed is 500r / min; the reaction temperature is 30℃;

[0053] Step 2, 30 minutes after the start of the reaction, add n-pentane with a flow rate of 100mL / h to carry out continuous extraction at room temperature to obtain the extract and the reaction phase; add 3mL of acetic acid to mix with the extract, and then vacuum the extract at 60°C Concentrate, and obtain 5.6 grams of garlic oil products and an organic solvent after the concentrate is separated. The organic solvent is recycled after alkali washing.

[0054] The conversion rate of alliin is 90%. Detected by gas chromatography, garlic oil is composed of 3-vinyl-1,2-dithiocyclohex-5-ene accounting for 26.23% (relative percentage content) and 3-vinyl-1,2-dithiocyc...

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Abstract

The invention discloses a method and device for preparing garlic oil with racemate alliin as raw materials. The method includes the following steps: (1) loading garlic, green onion, onion or allium chinensis into a reactor after the garlic, the green onion, the onion or the allium chinensis is washed, peeled and triturated, then adding an alliin solution, meanwhile, leading in air, and stirring and/or carrying out the reaction under the ultrasound condition, and (2) adding organic solvents into a reaction system after the reaction begins to carry out continuous extraction, obtaining extracted liquor, then adding edible fat and oil, water, ethyl alcohol or acetic acid into the extracted liquor, enabling the extracted liquor to be concentrated and separated in a vacuum mode at the temperature of 30-100DEG C, and obtaining the garlic oil. According to the method for preparing the garlic oil, the racemate alliin is added in the garlic, alliinase contained in the garlic is used for enabling the alliin to be converted into the garlic oil, the natural attribute of the garlic oil is kept, the yield of the garlic oil can be greatly improved, the method is simple and easy to achieve, and quite remarkable economic benefits are achieved.

Description

technical field [0001] The invention belongs to the field of biotransformation, and in particular relates to a method and a device for preparing garlic oil by using racemate alliin as a raw material. Background technique [0002] Garlic oil is a liquid mixture with important biological activity. It has a wide range of antibacterial, antiviral, anti-aging, anti-metal poisoning, anti-cancer and anti-oxidation effects. It can be used to treat infectious diseases, digestive system diseases, oral diseases, Cardiovascular and cerebrovascular diseases, etc. At the same time, garlic oil is also an important feed additive, which can increase animal feed intake, feed conversion rate and animal survival rate, reduce animal morbidity, and improve animal product meat quality and so on. It is not difficult to see that garlic oil is widely used, and the market demand is very large. [0003] At present, there are mainly two ways to source and prepare garlic oil: the first way is to extrac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/00C11B1/10A23D9/02
Inventor 周华李文清周美云晏日安
Owner JINAN UNIVERSITY
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