Triterpenoids are a group of structurally diverse specialized metabolites that frequently show useful bioactivities. These chemicals are biosynthesized from the common precursor 2,3-oxidosqualene in plants. The carbon skeletons produced by oxidosqualene cyclase (OSC) are usually modified by cytochrome P450 monooxygenases (P450s) and UDP-dependent glycosyltransferases. These biosynthetic enzymes...

The objectives of this research was to determine the chemical composition of roscoe extract from methanol and evaluation of antibacterial activity. The phytochemical compound screened by GC-MS method. Forty eight bioactive phytochemical compounds were identified in the methanolic extract of Zingiber officinale. The identification of phytochemical compounds is based on the peak area, retention t...

Pharmacognosy Research,2022,14,4,442-445.DOI:10.5530/pres.14.4.64Published:October 2022Type:Original ArticleAuthors:Jean Pierre Abdou, Jean Noël Nyemb, Momeni, Atikou Fadimatou, Abel Joël Yaya Gbaweng, Paul Tsopmejio, Guidawa Fawa, and Muhammad I. Choudhary Author(s) affiliations:Jean Abdou1,2, Nyemb3,*, Momeni1, Fadimatou1, Gbaweng1, Tsopmejio4, Fawa5, Choudhary6 1Department of Chemistry, Facu...

Glycyrrhiza species (G. uralensis, G. glabra, and G. inflata) has been reported to possess various pharmacological activities such as anti-inflammation, inhibition of prostaglandin E2 (PGE2) production in rat macrophages, 2) antiallergic, antiviral action, and interferon-g-induction. In Japan, a glycyrrhizin preparation, Stronger-Neo Minophagen C (SNMC), has been used extensively for more than ...

Stab ility of E q u ilibrial S t a t e s a n d Lim it Cycles in Sparsely Co n nected, Structurally Com p lex B o olean Nets C rayt on C. Walker Abst ract. Th roug h the ir na tural dyn ami cs , net work s of Boo lean fun ct ions ca n recompu te , or ret urn to , equilibrial states and lim it cycles from which t hey have been d isp laced. How often such return occurs measures one kind of be havi...

This paper presents the results of performance testing of a single-stage centrifugal compressor operating under wet gas conditions. The test was performed at an oil and gas operator’s test facility and was executed at full-load and full-pressure conditions using a mixture of hydrocarbon gas and hydrocarbon condensate. The effect of liquid was investigated by changing the gas-volume fraction bet...