Results 11 to 20 of about 2,061,847 (332)

Ultrasonic-assisted Extraction Process Optimization and Antioxidant Activity of Pectin from Hawthorn Peel Dregs [PDF]

open access: yesLiang you shipin ke-ji, 2023
The purpose of this study was to determine the optimum technological parameters of ultrasonic assisted extraction of pectin from Hawthorn peel residue and study the antioxidant activity of the extracted pectin.
WANG Bo, YAO Lun-guang, LU Yun-feng
doaj   +2 more sources

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

open access: yesShipin 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   +2 more sources

Ultrasonic-Assisted Flavonoid Extraction from Ant Nest [PDF]

open access: yesCHEESA: Chemical Engineering Research Articles, 2022
<p class="StyleE-JOURNALAbstrakKeywordsBold">The extraction of active substances from ant nests can be affected by various extraction methods, whether conventional or sonication. Sample extraction was carried out by maceration and ultrasonic methods with the use of solvents to yield flavonoid compounds.
Nita Indriyani   +3 more
openaire   +4 more sources

The efficiency of ultrasonic-assisted extraction of cyanocobalamin is greater than heat extraction [PDF]

open access: yesHeliyon, 2020
Cyanocobalamin, like other water-soluble vitamins, is susceptible to degradation due to exposure to heat, UV, oxygen and pH. Built on our previous finding, this study aimed to assess the extraction efficiency of cyanocobalamin from dietary supplements. Particularly, cyanocobalamin extraction in a 100 °C water bath was compared with ultrasonic-assisted ...
Chandra-Hioe, MV, Xu, H, Arcot, J
openaire   +6 more sources

Ultrasonic-microwave-assisted extraction for enhancing antioxidant activity of Dictyophora indusiata polysaccharides: The difference mechanisms between single and combined assisted extraction

open access: yesUltrasonics Sonochemistry, 2023
The purpose of this study is to investigate the effects of different extraction methods (hot water-assisted extraction (HWE), microwave-assisted extraction (MAE), ultrasonic-assisted extraction (UAE), and ultrasonic-microwave- assisted extraction (UAME))
Yanlin Zhang   +6 more
doaj   +2 more sources

Optimization of ultrasonic-assisted extraction of inulin from Jerusalem artichoke

open access: yesE3S Web of Conferences, 2019
An efficient ultrasonic-assisted extraction of inulin from Jerusalem artichoke was investigated by Response Surface Methodology (RSM). The results showed that the yield of ultrasonic-assisted extraction was 62.07 ± 0.39% over the microwave (40.85 ± 0.28%)
Yang Lina   +5 more
doaj   +3 more sources

Penetapan Kadar Fenolik dan Flavonoid Hasil Ultrasonic Assisted Extraction Daun Binahong (Anredera cordifolia [Ten] Steenis) [PDF]

open access: yesJurnal Riset Kimia, 2020
Anredera cordifolia [Ten] Steenis has been proven to have pharmacological activity that is thought to be influenced by the presence of phenolic compounds and flavonoids.
Landyyun Rahmawan Sjahid   +2 more
doaj   +2 more sources

Ultrasonic-Assisted Extraction of Procyanidins Using Ionic Liquid Solution from Larix gmelinii Bark [PDF]

open access: yesJournal of Chemistry, 2013
An ionic liquid-based ultrasonic-assisted extraction method has been developed for the effective extraction of procyanidins from Larix gmelinii bark.
Xiaowei Sun   +6 more
doaj   +2 more sources

Study on the Extraction of Polyphenols from Blueberry Leaves and their antioxidant properties [PDF]

open access: yesE3S Web of Conferences, 2021
Blueberry leaf as materials, ethanol ultrasonic assisted extraction of blueberry polyphenols, ethanol concentration and solid-liquid ratio on blueberry ultrasonic time leaves influence the yield of polyphenols were researched, and the orthogonal ...
Liu Fenghong   +6 more
doaj   +1 more source

Effects of Wheat Bran Varieties and Extraction Methods on the Structure and Antioxidant Activity of Arabinoxylan [PDF]

open access: yesShipin Kexue, 2023
Purpose: To compare the structure and antioxidant activity of arabinoxylan (AX) extracted from wheat bran of different varieties by different methods. Methods: AX was extracted from wheat bran from the cultivars ‘Bainong 207’, ‘Baihan 207’, ‘Guanmai 1’, ‘
ZHANG Xiumin, ZHOU Zengchao, QIAO Jinli, WANG Changlu, WANG Yuling, OU Xingqi, GUO Qingbin
doaj   +1 more source

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