Results 21 to 30 of about 46,515 (282)

Triterpenes and Phenolic Compounds from the Fungus Fuscoporia torulosa: Isolation, Structure Determination and Biological Activity

Molecules, 2021
Investigation of the methanol extract of the poroid fungus Fuscoporia torulosa resulted in the isolation of a novel triterpene, fuscoporic acid (1), together with inoscavin A and its previously undescribed Z isomer (2 and 3), 3,4-dihydroxy-benzaldehide ...
Zoltán Béni, Miklós Dékány, András Sárközy, Annamária Kincses, Gabriella Spengler, Viktor Papp, Judit Hohmann, Attila Ványolós   +7 more
doaj   +1 more source

Second‐Generation Crystalline Sponges Enabling Consistent Structure Analysis Under Standardized Conditions for Diverse Molecules

Angewandte Chemie, EarlyView.
The second‐generation crystalline sponge method allows structurally diverse molecular guests to crystallize under standardized crystallization conditions. The key is the predominant packing type of cages and anions in crystals. ABSTRACT Crystallization is typically highly sensitive to even minor structural differences in target molecules.
Wei He, Hiroki Takezawa, Makoto Fujita
wiley   +2 more sources

Inhibition of human neutrophil elastase by pentacyclic triterpenes.

PLoS ONE, 2013
ScopeInhibiting human neutrophil elastase (HNE) is a promising strategy for treating inflammatory lung diseases, such as H1N1 and SARS virus infections.
Li Feng, Xiaoyu Liu, Weiliang Zhu, Fujiang Guo, Yingchun Wu, Rui Wang, Kaixian Chen, Cheng Huang, Yiming Li   +8 more
doaj   +1 more source

Triterpenes and antitubercular activity of Byrsonima crassa

Química Nova, 2008
We evaluated the potential antitubercular activity of triterpenes obtained from leaves and bark of Byrsonima crassa. From chloroform extracts of the leaves, by bioassay-guided fractionation, we obtained mixtures of known triterpenes: α-amyrin, β
Celio Takashi Higuchi, Fernando Rogério Pavan, Clarice Queico Fujimura Leite, Miriam Sannomiya, Wagner Vilegas, Sergio Roberto de Andrade Leite, Luis Vitor S. Sacramento, Daisy Nakamura Sato   +7 more
doaj   +1 more source

Studies of the biological and therapeutic effects of argentine stingless bee propolis [PDF]

, 2018
Meliponids are native bees of the Americas, characterized by having no sting (ANSA). Some live in the Yunga forests of northern Argentina, a place rich in a diversity of this type of bees of which at least thirty-three species may be found. Propolis is a
Brodkiewicz, Ivana Yanina, Maldonado Luis, Marcinkevicius, Karenina, Reynoso Marcos, Salomon Virginia, Vera, Nancy Roxana   +5 more
core   +1 more source

The analysis of European lacquer : optimization of thermochemolysis temperature of natural resins [PDF]

, 2016
In order to optimize chromatographic analysis of European lacquer, thermochemolysis temperature was evaluated for the analysis of natural resins. Five main ingredients of lacquer were studied: sandarac, mastic, colophony, Manila copal and Congo copal ...
A Heginbotham, A Piccirillo, A-S Hô Le, C Riedo, Charles Indekeu, D Jun-Kai, D Scalarone, D Scalarone, Delphine Steyaert, Emile Van Binnebeke, F Piozzi, F Shadkami, Frederic Lynen, G Chiavari, G Nasini, G Steigenberger, H Keulen van, I Pastorova, ID Werf van der, ID Werf van der, J Koller, J Koller, J Poulin, J Romero-Noguera, JC Frade, JDJ Berg van den, JH Langenheim, JM Challinor, JS Mills, JW Leeuw de, K Sutherland, KB Anderson, KB Anderson, KB Anderson, KB Anderson, KB Anderson, Louise Decq, M Havelcová, M Kopplin, M Regert, M Webb, Michael Schilling, MT Doménech-Carbó, PS Bray, RJ Stacey, S Prati, S Saverwyns, S Watts, Steven Saverwyns, T Honda, U Baumer, V Cattersel, Vincent Cattersel, Wim Fremout   +53 more
core   +2 more sources

Enhanced triterpene production in Tabernaemontana catharinensis cell suspension cultures in response to biotic elicitors

Química Nova, 2007
Cell suspension cultures of Tabernaemontana catharinensis were treated with autoclaved homogenates of Candida albicans, Fusarium oxysporum, Penicillium avelanium and Saccharomyces cerevisiae. The effects caused by the concentration, exposure time and the
Paulo Sérgio Pereira, Fábio Kiss Ticli, Suzelei de Castro França, Camila Moniz de Souza Breves, Miriam Verginia Lourenço   +4 more
doaj   +1 more source

Optimization of Extraction Process and Simultaneous Content Determination for Quality Marker from Rosa roxburghii

Shipin gongye ke-ji, 2022
Extraction process for Q-markers from Rosa roxburghii using response surface methodology was optimized and HPLC method was established for simultaneous determination of their content.
Tao WANG, Liangqun LI, Yanfang YAN, Qiang TIAN, Faju CHEN, Yunfei TAN, Juan YANG, Mei PENG, Lishou YANG, Zhongsheng LUO, Qiji LI, Xiaosheng YANG   +11 more
doaj   +1 more source

Two New Oleanane-Type Triterpenes Isolated from Japanese Post-Fermented Tea Produced by Anaerobic Microbial Fermentation

Molecules, 2013
Four triterpenes were isolated from a traditional Japanese tea product produced by anaerobic microbial fermentation of heated green tea leaves (Camellia sinensis).
Isao Kouno, Yosuke Matsuo, Takashi Tanaka, Yong-Lin Huang, Sachi Nagai, Yoshinori Saito   +5 more
doaj   +1 more source

Separação semipreparativa de α e β-amirina por cromatografia líquida de alta eficiência

Química Nova, 2011
The resin obtained from species of the genus Protium (Burseraceae) is formed mostly of pentacyclic triterpenes: α-amyrin and β-amyrin. The separation and purification of these triterpenes were optimized in three steps.
Marluce Oliveira Dias, Lidilhone Hamerski, Angelo C. Pinto   +2 more
doaj   +1 more source