Extraction method of star anise oil

A technology of star anise oil and extraction method, which is applied in the directions of essential oils/spices, fat production, etc., which can solve the problems that are not suitable for large-scale industrial production, difficult to separate and purify, and have many impurities in the extract, so as to improve the yield and reduce the production cost , The effect of simple process

Active Publication Date: 2016-06-29
SHANDONG AGRICULTURAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

But on the whole, steam distillation is still the most widely used extraction method because of its good stability, low extraction cost and simple extraction method, but the yield of this method is relatively low; The new technology of volatile oil extraction developed in the 1960s has the outstanding feature of combining the steam distillation of the sample and the solvent extraction of the fraction into one, with fewer extraction steps, but this method requires special equipment with special design and complex structure ; and organic solvent extraction method can improve the productive rate of star anise oil to a certain extent, but gained extract impurity is more, is not easy to separate and purify
In recent years, the emerging microwave extraction method and supercritical CO 2 The extraction method requires high equipment. Although the yield and purity of star anise oil have been improved to a certain extent, the equipment is expensive and not suitable for large-scale industrial production.

Method used

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  • Extraction method of star anise oil
  • Extraction method of star anise oil
  • Extraction method of star anise oil

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Take the star anise fruit, bake and dry until the water content is 2%, pass through a 60-mesh sieve after being crushed by a pulverizer, weigh 100g of star anise powder with an electronic scale, add 1200mL of water, mix the two, and place it in the steam receiver of the steam distillation device. Start distillation in the bottle, the distillation temperature is 80°C, the distillation time is 5h, remove the impurities in the distillation, collect the effluent, add analytically pure sodium chloride until white sodium chloride solid appears in the water phase, separate the oil and water, absorb In the upper oil layer, 5.74g of star anise essential oil was obtained, which was stored in a brown bottle for later use, and the yield was 5.74%. The water phase in the steam receiving bottle in the steam distillation device was discarded, and the residue in the lower layer was collected and directly poured into a tray for drying. Collect and dry the residue to obtain 71g, place it ...

Embodiment 2

[0040] Take the star anise fruit, bake and dry until the water content is 5%, pass through a 60-mesh sieve after being crushed by a pulverizer, weigh 200g of star anise powder with an electronic scale, add 2200mL of water, mix the two, and place it in the steam receiver of the steam distillation device. Start distillation in the bottle, the distillation temperature is 90°C, the distillation time is 3h, remove the impurities in the distillation, collect the effluent, add analytically pure sodium chloride until white sodium chloride solid appears in the water phase, separate the oil and water, absorb In the upper oil layer, 11.62g of star anise essential oil was obtained, which was stored in a brown bottle for later use, and the yield was 5.81%. The water phase in the steam receiving bottle in the steam distillation device was discarded, and the residue in the lower layer was collected and directly poured into a tray for drying. Collect and dry the residue to obtain 141g, place i...

Embodiment 3

[0042]Take the star anise fruit, bake and dry until the water content is 4%, pass through a 60-mesh sieve after being crushed by a pulverizer, weigh 150g of star anise powder with an electronic scale, add 1500mL of water, mix the two, and place it in the steam receiver of the steam distillation device. Start distillation in the bottle, the distillation temperature is 105°C, and the distillation time is 4h. Remove the impurities in the distillation, collect the effluent, add analytically pure sodium chloride until white sodium chloride solid appears in the water phase, separate the oil and water, and absorb In the upper oil layer, 8.83g of star anise essential oil was obtained, which was stored in a brown bottle for later use, and the yield was 5.89%. The water phase in the steam receiving bottle in the steam distillation device was discarded, and the residue in the lower layer was collected and directly poured into a tray for drying. Collect and dry the residue to obtain 108g, ...

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Abstract

The invention provides an extraction method of star anise oil. In the invention, a steam distillation method is adopted before an ethanol extraction method; through the method, residual anise oil in the star anise after steam distillation is extracted by the ethanol extraction method to realize secondary extraction and utilization of active ingredients of star anise; and meanwhile, impurities in the star anise can be effectively removed by steam distillation, so that the purity of the anise oil obtained by ethanol extraction in the later period is increased, and the inherent defects of organic solvent extraction are overcome. The method can remarkably increase the yield of star anise oil and obtain anise oil with relatively good quality; and meanwhile, the method is low in cost, convenient to implement and suitable for industrial large-scale production.

Description

technical field [0001] The invention belongs to the technical field of natural product extraction, in particular to a method for extracting star anise oil. Background technique [0002] "Compendium of Materia Medica" records that star anise is the dried and mature fruit of magnolia plant star anise. It has the effects of dispelling wind and regulating qi, harmonizing stomach, warming yang and dispersing cold, regulating qi and relieving pain. In traditional Chinese medicine, it is often used for stomach cold vomiting, kidney deficiency, low back pain and cold colic Abdominal pain etc. Fennel oil can be extracted from its dried fruit and branches and leaves. The most important active ingredient in star anise oil is trans-anethole, also known as anisole, with molecular formula C 10 h 12 O, is a colorless transparent or light yellow liquid with an anise-like aroma and sweet taste. It has been widely used in food production and processing fields such as candy, beverages, and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/025C11B9/027
Inventor 杨在宾丁晓姜淑贞
Owner SHANDONG AGRICULTURAL UNIVERSITY
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