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Extraction method of ginger essential oil

A ginger essential oil and extraction method technology, which is applied in the direction of essential oil/spice, fat production, etc., can solve the problems of relatively harsh conditions, long distillation time, and high energy consumption, and achieve simple operation, high extraction rate, and short time consumption Effect

Active Publication Date: 2014-12-24
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology uses an improved type of solvent that makes it easier for certain ingredients like ginger root oil from plants called Ginger Essence (GSE). It also has several technical benefits such as being gentle at low temperatures, easy to operate quickly, efficient, cost savings, no harmful chemical residue or waste products produced when create this product, making them more environmentally friendly than previous methods without these drawbacks. Additionally, there may exist other ways to make pureed ginger oils while minimizing environmental impact on their production processes.

Problems solved by technology

This patented technical problem addressed in this patent relates to efficient extractions of crude ginger essence (ginger) through various techniques like steaming distilling, heat treatment, ultraviolet ray irradiation, microspherulation, and others.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The first step is the preparation of ginger powder: select 500g of fresh ginger with thick flesh, wash off the impurities on the surface of ginger with running water, cut the ginger into 2mm slices, put it into a starch solution with a mass concentration of 0.7% and soak it for 10 minutes, and then soak it at 80 Dry in an oven at ℃ for 8 hours, put the dried ginger slices into a high-speed universal grinder and pulverize for 2 minutes, pass through a 60-mesh sieve, and keep sealed at room temperature for later use;

[0027] Preparation of the second step enzymatic hydrolysis solution: In the pH value of 7.0 sodium hydrogen phosphate-citric acid buffer solution, add the ionic liquid [Emim]OAc (Shanghai Biotechnology Co., Ltd.) to prepare an ionic liquid with a volume fraction of 10%. Buffer system, add 10g ginger powder to the ionic liquid buffer system, so that the ratio of solid to liquid is 1:15g / mL, add cellulase with an enzyme activity ratio of 3000U / g (Guangzhou Qiy...

Embodiment 2

[0030] The first step is the preparation of ginger powder: select 500g of fresh ginger with thick flesh, wash off the impurities on the surface of ginger with running water, cut the ginger into 4mm slices, put it into a starch solution with a mass concentration of 0.5% and soak it for 13 minutes. Dry in an oven at ℃ for 6 hours, put the dried ginger slices into a high-speed universal grinder for 3 minutes, and sieve them with a 70-mesh sieve, and store them sealed at room temperature for later use;

[0031]Preparation of the second step of enzymolysis solution: In the pH value of 6.5 sodium hydrogen phosphate-citric acid buffer solution, add the ionic liquid [Emim]OAc (Shanghai Biotechnology Co., Ltd.) to prepare an ionic liquid with a volume fraction of 30%. Buffer system, add 10g ginger powder to the ionic liquid buffer system, so that the ratio of solid to liquid is 1:10g / mL, add cellulase with an enzyme activity ratio of 2000U / g (Guangzhou Qiyun Biotechnology Co., Ltd.), at...

Embodiment 3

[0034] The first step is the preparation of ginger powder: select 500g of fresh ginger with thick flesh, wash off the impurities on the surface of ginger with running water, cut the ginger into 3mm slices, put it into a starch solution with a mass concentration of 0.9%, soak it for 15min, and then soak it in 60 Dry in an oven at ℃ for 7 hours, put the dried ginger slices into a high-speed universal grinder and pulverize for 1 minute, pass through a 60-mesh sieve, and keep sealed at room temperature for later use;

[0035] Preparation of the second step of enzymolysis solution: In the pH value of 8.5 sodium hydrogen phosphate-citric acid buffer solution, add the ionic liquid [Emim]OAc (Shanghai Biotechnology Co., Ltd.) to prepare an ionic liquid with a volume fraction of 20%. Buffer system, add 10g ginger powder to the ionic liquid buffer system, so that the ratio of solid to liquid is 1:20g / mL, add cellulase with an enzyme activity ratio of 4000U / g (Guangzhou Qiyun Biotechnolog...

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Abstract

The invention discloses an extraction method of ginger essential oil. The method comprises the following steps: preparing ginger powder: slicing fresh ginger, soaking the sliced ginger in a 0.5-0.9wt% starch solution for 10-15min, drying and grinding the sliced ginger, and filtering obtained powder through a sieve of 60-80 meshes; preparing enzymatic hydrolysate: adding a de-ionized liquid 1-ethyl-3-methyl imidazole acetate ([Emim]OAc) to a disodium hydrogen phosphate-citrate buffer solution to obtain an ionic liquid system; adding the ginger powder to the ionic liquid system, controlling a material-to-liquid ratio at (1: 10)g/ml-(1: 20)g/mL, adding cellulase which is 2000-4000U/g in enzyme activity ratio and enzymatically hydrolyzing for 3-5h at 40-50 DEG C; and 3) essential oil extraction: and implementing enzyme deactivation to the system in a water bath after the reaction, ultrasonically extracting for 5-10min, conducting microwave treatment, filtering through gauze, centrifuging, standing and taking the de-ionized liquid on lower layer, spin-steaming, collecting oily matters having intense fragrance and drying the oily matters through anhydrous sodium sulfate to obtain the ginger essential oil.

Description

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Claims

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Application Information

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Owner SOUTH CHINA UNIV OF TECH
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