Study on Supercritical Extraction of Volatile Oil from Radix Notopterygii and Its Inhibition of Tyrosinase Activity The extraction process of volatile oil from Radix Notopterygii was optimized by supercritical fluid extraction, and its whitening activity was studied. On the basis of single factor experiment and taking the yield of extract as the evaluation index, the […]
Study on Supercritical Carbon Dioxide Extraction Technology of Maotai Distiller’s Grains
Study on Supercritical Carbon Dioxide Extraction Technology of Maotai Distiller’s Grains The optimum technological conditions for supercritical carbon dioxide extraction of aroma-producing substances from Maotai distiller’s grains were obtained by single factor and orthogonal experiments. Through validation tests, it was determined that the extraction rate was the highest under the conditions of loading coefficient 0.5, […]
Extraction of Wild Rosa davurica Seed Oil by Supercritical CO2
Extraction of Wild Rosa davurica Seed Oil by Supercritical CO2 Using wild Rosa davurica seeds as raw materials, a quadratic polynomial mathematical model of the yield of oil from wild Rosa davurica seeds extracted by supercritical CO2 was established by using response surface analysis method through improving the existing supercritical CO2 extraction equipment, and the […]
Progress in Supercritical Fluid Extraction of Oil Products
Progress in Supercritical Fluid Extraction of Oil Products Based on the physical properties and transfer characteristics of supercritical fluid, the unique advantages of supercritical fluid as a solvent for separation and extraction were analyzed, and the suitable substances for supercritical fluid extraction were introduced. Typical industrial applications of supercritical extraction technology in petrochemical products are […]
Supercritical CO2 Extraction of Cannabinol from Hemp and Its Antibacterial Activity
Supercritical CO2 Extraction of Cannabinol from Hemp and Its Antibacterial Activity Supercritical CO2 extraction of cannabinol from hemp was established, and the antimicrobial properties of the extracts were investigated. Through the analysis of single factor and orthogonal test, the optimum extraction process of three cannabinoids from hemp by supercritical CO2 was determined: extraction temperature 45 […]
Study on Supercritical CO2 Extraction of Polyphenols from Corn Silk and Its Antioxidant Activity
Study on Supercritical CO2 Extraction of Polyphenols from Corn Silk and Its Antioxidant Activity Supercritical CO2 was used to extract polyphenols from corn silk. On the basis of single factor experiments on the effects of extraction pressure, extraction temperature, extraction time and entrainer ethanol concentration on the amount of polyphenols extracted from corn silk, the […]
Rapid Detection of Four Aflatoxins in Cereals by Supercritical Extraction-Supercritical Chromatography-Tandem Mass Spectrometry
Rapid Detection of Four Aflatoxins in Cereals by Supercritical Extraction-Supercritical Chromatography-Tandem Mass Spectrometry A method for the determination of aflatoxin in cereals by supercritical extraction-supercritical chromatography-tandem mass spectrometry was established. Methods the samples were extracted with supercritical CO2- methanol (98: 2, V/V) as extractant. The supercritical CO2 and methanol were used as mobile phase gradient […]
Preliminary Study on Supercritical Extract of Aspergillus Niger Inhibiting Alternaria
Preliminary Study on Supercritical Extract of Aspergillus Niger Inhibiting Alternaria The mechanism of inhibition of Alternaria alternata by supercritical extraction (SE) from Aspergillus Niger mycelium was studied. Sample SE was extracted from Aspergillus Niger mycelium by supercritical fluid extraction, and its extract was separated and identified by gas chromatography-mass spectrometry (GC-MS). The antimicrobial mechanism of […]
Test On Treatment Of Oil-based Drilling Cutting By Supercritical CO2 Extraction
Test On Treatment Of Oil-based Drilling Cutting By Supercritical CO2 Extraction A process of treating oil-based drilling cuttings by supercritical CO2 extraction was studied. The basic principle and process flow of the process were introduced. A test device was established. The process of treating oil-based drilling cuttings by supercritical CO2 extraction was studied in laboratory. […]
A comparative study of different extracts of Coptis chinensis on type 2 diabetic rats
A comparative study of different extracts of Coptis chinensis on type 2 diabetic rats OBJECTIVE To compare the contents of effective components in different extracts of Coptis chinensis and their therapeutic effects on type 2 diabetic rats, and to explore the correlation between the contents of main components and their therapeutic effects. METHODS: The contents […]