Results 261 to 270 of about 1,958,834 (290)

Ultrasonic-assisted extraction of polyphenols and antioxidants from Picea abies bark

Journal of Biotechnology, 2020
Spruce bark represents a reservoir of bioactive compounds. The aim of this study was to investigate the effect of independent variables (temperature, liquid to solid ratio, time and methanol content) and their interaction within the extraction process by the response surface methodology (RSM).
Daniela, Chmelová, Dominika, Škulcová, Barbora, Legerská, Miroslav, Horník, Miroslav, Ondrejovič   +4 more
openaire   +2 more sources

Ultrasonic Assisted Cloud Point Extraction of Polyaromatic Hydrocarbons

Separation Science and Technology, 2007
Abstract Cloud point extraction (CPE) of three PAHs, anthracene, phenanthrene, and pyrene was performed in an ultrasonic environment with Tergitol TMN‐6 as extractant. During the process, surfactant micelle aggregates came out gradually and deposited to form a surfactant‐rich phase.
Bingjia Yao, Li Yang
openaire   +1 more source

A comparison of accelerated solvent extraction, Soxhlet extraction, and ultrasonic-assisted extraction for analysis of terpenoids and sterols in tobacco

Analytical and Bioanalytical Chemistry, 2005
The performance of accelerated solvent extraction in the analysis of terpenoids and sterols in tobacco samples was investigated and compared with those of Soxhlet extraction and ultrasonically assisted extraction with respect to yield, extraction time, reproducibility and solvent consumption.
Jinchao, Shen, Xueguang, Shao
openaire   +2 more sources

Studies on Total Flavonoids Extraction from Perilla using Ultrasonic-Assisted Extraction

Advanced Materials Research, 2011
The extraction of total flavonoids from Perilla, using ultrasonic-assisted method, was investigated in this work. Various extraction conditions, such as ethanol concentraction (V/V), volume-weight ratio between the extraction solution and the weight of Perilla (V/W), the extraction time (t), pH, temperature (T), agent concentration (c) have been ...
Yuan Feng Wu, Jian Wei Mao, Shi Wang Liu, Huang Jun   +3 more
openaire   +1 more source

Ultrasonic-Assisted Extraction of Carrageenan

2017
S.M. Rafiquzzaman, Md Aminur Rahman, In-Soo Kong   +2 more
openaire   +1 more source

Chapter 3 Ultrasonically assisted extraction (UAE)

2023
openaire   +1 more source

Characteristics of Ethanolic Cordyceps Militaris Extract by Ultrasonic-Assisted Extraction Method

2023
Thi Xuan Trinh, Bao Nghi Nguyen, Thanh Trung Nguyen, Van Trung Phung, Thi Thu Hoai Nguyen   +4 more
openaire   +1 more source

Ultrasonic-assisted extraction of polysaccharide from : Kinetics, thermodynamics and optimization

Biochemical Engineering Journal, 2022
Zhanke Wang, Guangxu Zhang
exaly  

Ultrasonic/microwave-assisted extraction, simulated digestion, and fermentation by human intestinal flora of polysaccharides from

International Journal of Biological Macromolecules, 2020
Kit leong Cheong, Xian-Qiang Chen
exaly  

Impact of ultrasonic-assisted extraction on the chemical and sensory quality of tea infusion

Journal of Food Engineering, 2006
Xiao-Chun Wan, Tao Xia
exaly