Results 41 to 50 of about 4,005 (216)

Anti-Inflammatory Activity of Four Triterpenoids Isolated from Poriae Cutis

Foods, 2021
In this study, triterpenoid compounds from Poriae Cutis were separated by high-speed countercurrent chromatography (HSCCC) and identified using ultra-high performance liquid chromatography quadrupole time-of-flight tandem mass spectrometry (UHPLC-QTOF-MS/
Lijia Zhang, Mengzhou Yin, Xi Feng, Salam A. Ibrahim, Ying Liu, Wen Huang   +5 more
doaj   +1 more source

Enrichment and Determination of Zinc by High-Speed Countercurrent Chromatography

Analytical Sciences, 2002
The capability of high-speed countercurrent chromatography (HSCCC) has been investigated for enrichment and determination of metal ions at trace levels. Separation of selected divalent metal ions was performed using a small coiled column. A hexane solution of 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (EHPA) was employed as the stationary ...
Akihiro, Hosoda, Akira, Tsuyoshi, Kenichi, Akiba   +2 more
openaire   +3 more sources

Comprehensive Polyphenolic Profile of Plantago depressa using High-Speed Countercurrent Chromatography Off-line with High-Performance Liquid Chromatography–Diode Array Detector–Quadrupole Time-of-flight Tandem Mass Spectrometry

eFood, 2019
The whole plant of Plantago depressa is commonly used as traditional Chinese medicine and functional food ingredient. Total phenolic content and total flavonoid content evaluation indicated that its ethyl acetate and n-butanol fractions were rich in ...
Jinju Xu, Chaoying Tong, Qiachi Fu, Keke Guo, Shuyun Shi, Yecheng Xiao   +5 more
doaj   +1 more source

Characterization, Large-Scale HSCCC Separation and Neuroprotective Effects of Polyphenols from Moringa oleifera Leaves

Molecules, 2022
Moringa oleifera leaves have been widely used for the treatment of inflammation, diabetes, high blood pressure, and other diseases, due to being rich in polyphenols.
Qian Gao, Zongmin Wei, Yun Liu, Fang Wang, Shuting Zhang, Carmo Serrano, Lingxi Li, Baoshan Sun   +7 more
doaj   +1 more source

NIR Calibrations for Soybean Seeds and Soy Food Composition Analysis: Total Carbohydrates, Oil, Proteins and Water Contents [v.2] [PDF]

, 2011
Conventional chemical analysis techniques are expensive, time consuming, and often destructive. The non-invasive Near Infrared (NIR) technology was introduced over the last decades for wide-scale, inexpensive chemical analysis of food and crop seed ...
Doina M. Costescu, I. C. Baianu, Jun Guo, Randall L. Nelson, Tiefeng You   +4 more
core   +2 more sources

Research Progress in the Separation of Chemical Components from Essential Oils by High-Speed Countercurrent Chromatography

Separations
Essential oils (EOs) are vital secondary metabolites in plants. They have garnered substantial attention owing to their distinct flavors and desirable attributes, including potent antioxidant, antibacterial, and antitumor properties.
Linhong He, Zihao Zhong, Lijuan Zhang, Xi Bai   +3 more
doaj   +1 more source

Separation and Biological Activities of the Main Compounds from the Bark of Myrica rubra Siebold & Zucc

Separations, 2023
Myrica rubra (Lour.) Siebold & Zucc bark is a traditional natural medicine used by the people of the Dong minority in western Hunan in China. In this study, the main compounds in Myrica rubra bark including epigallocatechin gallate, myricetrin, myricetin,
Tianyang Hao, Lingyang Fan, Yiyue Chang, Hui Yang, Kai He   +4 more
doaj   +1 more source

The isolation of (6S, 9S)-cyclo(prolylvalyl) from marine actinomycete, by use of high speed countercurrent chromatography [PDF]

Journal of the Serbian Chemical Society, 2002
The marine actinomycete B 1758 came from the actinomycete collection of the Alfred Wegener Institute for Polar and Marine Research in Bremerhafen, Germany. 1.079 g of raw extract was obtained by fermentation.
SINISA DJORDJEVIC, ANDRIJA SMELCEROVIC, MIRKO SCHIEBEL   +2 more
doaj  

HSCCC Separation of the Two Iridoid Glycosides and Three Phenolic Compounds from Veronica ciliata and Their in Vitro Antioxidant and Anti-Hepatocarcinoma Activities

Molecules, 2016
Five main compounds, including two iridoid glycosides (catalposide, verproside) and three phenolic compounds (luteolin, 4-hydroxy benzoic acid, 3,4-dihydroxy benzoic acid), were separated and prepared from the crude extract of Veronica ciliata by high ...
Qiuxia Lu, Yiran Sun, Yueyue Shu, Shancai Tan, Li Yin, Yiran Guo, Lin Tang   +6 more
doaj   +1 more source

Isolation and identification of highly active anticholinesterase ingredients from fermented soybean products

CyTA - Journal of Food, 2017
Inhibitory activities of ethanol extracts from seven fermented soybean products, including douchi, sufu, stinky tofu, to acetylcholinesterase were determined, and crude extract from Yongchuan douchi, which showed the strongest inhibitory effect, was ...
Yunbin Zhang, Mengyue Wei, Weidi Li, Yifei Wang, Jingwen Wang   +4 more
doaj   +1 more source