Results 31 to 40 of about 48,793 (299)

Sequential Combination of Microwave- and Ultrasound-Assisted Extraction of Total Flavonoids from Osmanthus fragrans Lour. Flowers

Molecules, 2017
Microwave-assisted and ultrasound-assisted extraction assays were used to isolate total flavonoids (TF) from Osmanthus fragrans flowers. The effects of the solid-liquid ratio, ethanol concentration, microwave power, microwave extraction time, ultrasonic ...
Jianfeng Yu, Qi Lou, Xiangyang Zheng, Zhengwei Cui, Jian Fu   +4 more
doaj   +1 more source

Optimization of Response Surface for Ultrasonic Acid Extraction of Pectin from Passion Fruit Peel and Its Antioxidant Activity

Shipin gongye ke-ji, 2022
In order to further realize the waste utilization of PFP and reduce the waste of resources and environmental pollution, PFP pectin was extracted by ultrasonic assisted acid method and its antioxidant activity was studied.
Jinxiu WANG, Qingqing ZHAO, Xinyi XU, Qian XIE, Qingxi CHEN   +4 more
doaj   +1 more source

Antioxidant and hepatoprotective effects of Ajuga nipponensis extract by ultrasonic-assisted extraction

Asian Pacific Journal of Tropical Medicine, 2016
To investigate suitable condition for extraction of the active components from Ajuga nipponensis (A. nipponensis).Orthogonal experimental design was used to determine the optimal extraction parameters for ecdysterones and flavonoids. Finally, the hepatoprotective abilities of A.
Hsieh, Chang-Wei, Ko, Wen-Ching, Ho, Wai-Jane, Chang, Chao-Kai, Chen, Guo-Jhou, Tsai, Jen-Chieh   +5 more
openaire   +2 more sources

Antioxidant Activity of Extract from Ultrasonic-Assisted Extraction of Durian Peels

Journal of Applied Food Technology, 2018
The increase in durian production results in the accumulation of durian peel waste. The bioactive component of durian peel has the potential to be used as an antioxidant. Thus, there is a need to carry out an extraction process to obtain  bioactive compounds from durian peel.
Bambang Kunarto, Ely Yuniarti Sani
openaire   +3 more sources

Evaluation of the Biological Properties of an Optimized Extract of Polygonum cuspidatum Using Ultrasonic-Assisted Extraction

Molecules, 2023
Phytochemicals are natural compounds found in plants that have potential health benefits such as antioxidants, anti-inflammatory and anti-cancer properties, and immune reinforcement. Polygonum cuspidatum Sieb. et Zucc. is a source rich in resveratrol, traditionally consumed as an infusion. In this study, P.
Gabriela Fletes-Vargas, Rogelio Rodríguez-Rodríguez, Neith Pacheco, Alejandro Pérez-Larios, Hugo Espinosa-Andrews   +4 more
openaire   +3 more sources

Optimization of Ultrasonic-Assisted Extraction of Chlorogenic Acid from Tobacco Waste [PDF]

International Journal of Environmental Research and Public Health, 2022
Using tobacco waste as raw material, the ultrasonic-assisted extraction of chlorogenic acid was optimized by response surface methodology (RSM). After repeated freezing and thawing of tobacco waste twice, the effect of pH value, ethanol volume fraction, temperature and extraction time on the extraction rate of chlorogenic acid was investigated by a ...
Guoming Zeng, Yujie Ran, Xin Huang, Yan Li, Maolan Zhang, Hui Ding, Yonggang Ma, Hongshuo Ma, Libo Jin, Da Sun   +9 more
openaire   +2 more sources

Optimization on extraction process of resveratrol by intermittent ultrasonic assisted enzymatic extraction from grape skin residue

Shipin yu jixie, 2022
Objective: In order to efficiently extract resveratrol and to maintain the good antioxidant capacity. Methods: Resveratrol was extracted from grape skin residue using intermittent ultrasonic assisted enzymatic extraction. The response surface method （RSM）
ZHANG Qin, TIAN Zi-ming, WANG Jin-zhu
doaj   +1 more source

Ultrasound-Assisted Enzymatic Extraction of Adenosine from Vietnamese Cordyceps militaris and Bioactivity Analysis of the Extract

Journal of Chemistry, 2020
Vietnamese Cordyceps militaris (C. militaris) has long been recognized as one of the most valuable traditional Chinese medicines. In this study, adenosine was extracted from Vietnamese C. militaris by ultrasound-assisted enzymatic extraction method (UAEE)
Thanh Vuong Hoai, Phuc Nguyen Cao, My Phan Le Thao, Tran Dat Do, Nam Hoang Minh, Huynh Ky Phuong Ha, Phong Mai Thanh, Hieu Nguyen Huu   +7 more
doaj   +1 more source

Extraction of Pectin from Passion Fruit Peel: Composition, Structural Characterization and Emulsion Stability

Foods, 2022
Extraction methods directly affect pectin extraction yield and physicochemical and structural characteristics. The effects of acid extraction (AE), ultrasonic-assisted acid extraction (UA), steam explosion pretreatment combined with acid extraction (SEA)
Yonglun Liang, Yang Yang, Lili Zheng, Xiaoyan Zheng, Dao Xiao, Shenwan Wang, Binling Ai, Zhanwu Sheng   +7 more
doaj   +1 more source

Ultrasound-Assisted Enzymatic Extraction and Structural Characterization of Cowhide Collagen

Shipin gongye ke-ji, 2023
Using cowhide as raw material, the process of ultrasonic-assisted enzyme extraction of collagen from cowhide was optimized. Based on the single factor experiment, a response surface test was designed, and the extraction rate of cowhide collagen was used ...
Gaiming ZHAO, Zhuangzhuang WANG, Chaozhi ZHU, Xiaoling YU, Qiuhui ZHANG, Xingshan QI   +5 more
doaj   +1 more source