Bioactive properties and chemical constituents of methanolic extract and its fractions from Jatropha curcas oil

Antioxidant activity and chemical compositions of essential oil and ethanol extract of Chuanminshen violaceum

“…It was also noticed that contents of the phenolic compounds in the fractions were higher than that in ethanol extract. Similar finding was also reported by Tongpoothorn et al (2012), who mentioned that this could be due to more interfering substances presenting in the ethanol extract (0.69 mg GAE/g). Although the yield was lower in EAF than those in other fractions, the EAF was significantly rich (p < 0.05) in phenolic compounds than other fractions.…”

Antioxidant Activity of the Extracts from Jatropha curcas Fruit and Its Correlation with Total Phenolic Content

“…It is noteworthy that the active compound may contain highly in this fraction. However, the characterizations by using further technique such as GC-MS or HPLC-MS may be As antioxidant activity tests with two above methods, the results showed that the extracts from J. curcas fruit had a higher both total phenolic content and antioxidant activity than J. curcas seed oil in our previous work 17 . Consequently, these results suggested that J. curcas fruit has highly potential as effective natural antioxidant sources.…”

“…It may be due to the present of some phenolic compounds such as methyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate according to the studied of Tongpoothorn et al (2012) and also 5,4'-dihydroxy-3, 7, 3'-trimethoxyflavone, 5, 3', 4'-trihydroxy-3,7-dimethoxyflavone, 3-O-methylquercetin, 5, 6, 7-trimethoxycoumarin, tomentin, isoscopoletin, omega-hydroxypropioquaiacone, coniferaldehyde, 3, 5-dihydroxy-4-methoxybenzaldehyde, vanillic acid, isovanillin, 4-hydroxybenzaldehyde, cimifugin and (E)-3-hydroxy-5-methoxy-stilbene according to the studied of Jun and Xu (2012) 17,18 . Additionally, the synergism between the antioxidant compounds in the extracts made the antioxidant activity dependent on concentration or the structure of the containing compound and the interaction between the antioxidant compounds.…”

Antimicrobial Activity and Chemical Constituents of the Extract from Jatropha curcas Fruit

“…However, this activity may be due to the content of phorbol ester. In which many of reports described that phorbol ester containing in high quantity in the part of J. curcas seed 5 . According to the obtained antimicrobial activity in this study, the chemical constituent in the crude methanolic extract from J. curcas fruit can be served as an effective natural antimicrobial source.…”

“…Especially, flavonoids are well known as polyphenolic substances with strong bioactive activity which obtained from many types of medicinal plants 4 . However, in currently the synthetic bioactive compounds such as butylatedhydroxyanisole(BHA), butylatedhydroxytoluene (BHT) and tert-butylhydroquinone are usually used in industrial process 3,5,6 . The synthetic antimicrobial chemicals are also used in the treatment of infectious diseases.…”