supercritical co2 extraction machine
Home >> Supercritical Fluid System >> Supercritical Fluid Technologies Treatises >> Study on Supercritical CO2 Extraction of Thyme

Study on Supercritical CO2 Extraction of Thyme

Abstract:

The extract from Thymus quinpuecostatus was obtained by supercritical carbon dioxide extraction (SFE-CO2) technique. Suitable technological conditionswereobtained. Theantioxidationeffects of thethymeextractwere also investigated in this experiment. The results showed that thyme oil has strong antioxidant actions in soybean oil. And it does not bring any bad effects on soybean oil favor.

WANG Di ,XU Hui

Thyme, also known as thyme, is a perennial deciduous shrub of the labiatae family.

Widely distributed in northern Africa and the European cold and drought resistance, the vitality is very tenacious.

It is widely distributed in low-lying hilly areas in Liaoning, Shandong, Hebei, Shanxi, and Shaanxi provinces.

In 1970, the International Standard Organization announced that thyme can be used as a food spice. Many European countries often use thyme as one of the important raw materials for blending spices. However, the research on thyme is far from widely used. Development and utilization have not received due attention.

Thyme essential oil is usually obtained by steam distillation method and oil-water separation process. The yield of thyme essential oil obtained by steam distillation is too low and the cost is too high, thus limiting its production and use.

In this experiment, thyme from Gansu was used as a raw material, and thyme essential oil was extracted by supercritical CO 2 extraction (SFE-CO2). The extraction process conditions were studied, and the best experimental conditions were screened to obtain higher yields of essential oils.

Studies have reported that flavonoids in thyme plant extracts have the ability to scavenge free radicals and have a strong inhibitory effect on the oxidation of methyl linoleate systems.

Therefore, the antioxidant activity of thyme extract in soybean oil was researched in different ways to provide theoretical basis and practical parameters for further development of the use of essential oils as natural antioxidants.

Supercritical co2 extraction equipment

Related Posts

Component analysis of the fat-soluble extraction from Lepidium meyenii Walp. by SFE-CO2

FAN Cai-hong1,2, SHI Qing-long2, XU Wen-cong2 ,JIANG Hua-zhuang2 ,LIU Li-ping2 , GE Fa-huan1,2 *1.School of pharmaceutical sciences,Sun Yat-Sen University,Guangzhou 510006;2.Nansha Research Institute of Sun Yat-Sen University, Guangzhou 511458Down..

Supercritical CO2 extraction of rosemary antioxidants and essential oils

Average yield of rosemary oiO was 1.80 % . Resultr of ccnstituent analysia of rosemary oit ohowed that the essentiat oit mainly ccntains 1,8-cineeIe, camphor, a-terpineoI, borneel, verbenone, terpinen-4-oI, bornyS acctate and linaloI. Average yield o..

Supercritical CO2 extraction of chili oleoresin

Optimum experimental process parameters for supercritical extraction of chilli oleoresin:In summary, the experimental extraction pressure is 30 MPa, temperature is 315 K, time is 3.0 h, and CO2 flow is 0.40 m3 / h.

Supercritical extraction method of tea extract

Black tea is crushed, and the loading requires 20kg / 100L supercritical CO2; supercritical CO2 extraction technical requirements: pressure is 30MPa, extraction temperature is 45 ° C, separation temperature is 80 ° C, extraction method: static extr..

Removal of caffeine from green tea concentrate by supercritical CO2

It can be envisaged that the continuous operation of decaffeinated tea concentrate or instant tea can be realized by connecting a production-type supercritical CO 2 extraction device on the instant tea production line.

Supercritical CO2 extraction of ginger oleoresin

Fresh ginger slices are dried at 50 ° C to 13% water content, crushed to a particle size of less than 2.5mm, 1000g is placed in an extraction kettle, and CO2 with a purity of 99.5% is pressed in by a high-pressure plunger pump at a flow rate of 5m..