Triterpenoids from Dysoxylum malabaricum

Hisham, A.; Bai, Meng; Jayakumar, G.; Nair, Mangalam S.; Fujimoto, Yoshinori

doi:10.1016/s0031-9422(00)00413-1

Cited by 33 publications

(14 citation statements)

References 8 publications

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“…The ethanolic leaf extract of Cassia obtusifolia (Rajkumar and Jebanesan, 2005); the effects of fruit and senescent leaf extracts of Melia azedarach (Coria et al, 2008); the leaf extract of Solanum trilobatum (Rajkumar and Jebanesan, 2005); and the piperitenone oxide isolated from essential oil of Mentha spicata (Tripathi et al, 2004) were investigated for their larvicidal, ovicidal, and oviposition deterrence effects against Anopheles stephensi and Aedes aegypti. The active components dymalol, nymania-3, and triterpenes isolated from the extract of Dysoxylum malabaricum act as an oviposition repellent and/or deterrent to Anopheles stephensi (Govindachari et al, 1999;Hisham et al, 2001). The chemicals derived from plants have been projected as weapons in future mosquito control program as they are shown to function as general toxicant, growth and reproductive inhibitors, repellents and oviposition-deterrent (Sukumar et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

Oviposition-deterrent, ovicidal, and repellent activities of indigenous plant extracts against Anopheles subpictus Grassi (Diptera: Culicidae)

Elango¹,

Bagavan²,

Kamaraj³

et al. 2009

Parasitol Res

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Insecticides of botanical origin may serve as suitable alternative biocontrol techniques in the future. The leaf acetone, ethyl acetate, and methanol extracts of Aegle marmelos (Linn.) Correa ex Roxb, Andrographis lineata Wallich ex Nees, and Cocculus hirsutus (L.) Diels were tested for oviposition-deterrent, ovicidal, and repellent activities against Anopheles subpictus Grassi (Diptera: Culicidae). The percentage of effective oviposition repellency of 92.60 , 93.04, 95.20, 88.26, 92.80, 94.01, 95.77, 96.93, and 92.54 at 500 ppm and the lowest repellency of 47.14, 58.00, 56.52, 64.93, 71.09, 66.42, 50.62, 57.62, and 65.73 at 31.25 ppm in acetone, ethyl acetate, and methanol extracts of Aegle marmelos, Andrographis lineata, and Cocculus hirsutus, respectively. The oviposition activity index (OAI) value of acetone, ethyl acetate, and methanol extracts of Aegle marmelos, Andrographis lineata, and Cocculus hirsutus at 500 ppm were -0.86, -0.87, -0.90, -0.78, -0.87, -0.86, -0.91, -0.94, and -0.86 respectively. The OAI values revealed that the solvent plant extracts have deterrent effect, and they caused a remarkable negative response resulting in oviposition of very few eggs. Mean percent hatchability of the ovicidal activity was observed 24 h after treatment. The percent hatchability was inversely proportional to the concentration of extract and directly proportional to the eggs. Mortality of 100% with ethyl acetate extract of Aegle marmelos, methanol extracts Aegle marmelos, Andrographis lineata, and Cocculus hirsutus were exerted at 1,000 ppm. The maximum repellent activity was observed at 500 ppm in methanol extracts of Aegle marmelos, Andrographis lineata, and ethyl acetate extract of Cocculus hirsutus, and the mean complete protection time ranged from 90 to 120 min with the different extracts tested. These results suggest that the leaf extracts of Aegle marmelos, Andrographis lineata, and Cocculus hirsutus have the potential to be used as an ideal ecofriendly approach for the control of the Anopheles subpictus. Therefore, this study provides first report on the oviposition, ovicidal, and repellent activities against malaria vector, Anopheles subpictus of plant extracts from Southern India.

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Section: Introductionmentioning

confidence: 99%

Oviposition-deterrent, ovicidal, and repellent activities of indigenous plant extracts against Anopheles subpictus Grassi (Diptera: Culicidae)

Elango¹,

Bagavan²,

Kamaraj³

et al. 2009

Parasitol Res

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“…Chemical shift at δ 60.58 ppm points to the oxidation of methyl group at C-28 in 1 to a primary alcohol in 7. Comparison of these spectral values with literature 13 showed that compound 7 is betulin (lupane skeleton).…”

Section: Resultsmentioning

confidence: 62%

“…This may be due to a CH 2 OH grouping at C-28. 13 C NMR spectrum ( Table 2) matched with that of lupeol except for the presence of an additional carbinolic carbon at δ 60.58 ppm. Chemical shift at δ 60.58 ppm points to the oxidation of methyl group at C-28 in 1 to a primary alcohol in 7.…”

Section: Resultsmentioning

confidence: 75%

“…The linear nature of the compound was revealed by the multiplets at δ1.56(26H) and 1.25(14H). 13 C NMR spectrum (300MH z ) had a primary alcoholic carbon signal at δ 63.2ppm and 13 C NMR spectra showed compound 5 to be a primary alcohol with twenty two carbon atoms in a chain. FABMS did not furnish a molecular ion peak; instead a (M C NMR signals were seen at δ 179.12(keto group) and between 14.11-33.89 ppm (21 carbon atoms).…”

Section: Resultsmentioning

confidence: 99%

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Phytochemical Analysis Radical Scavenging Activity of the Extracts of Costus picatus Linn Coccinia indica W& A, two Ethnic Medicinal Plants used in the Treatment of Diabetes mellitus

Ajithabai¹,

S²,

Jayakumar³

et al. 2011

Free Radicals and Antioxidants

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“…Govindarajan (2009) reported that the leaf methanol, benzene, and acetone extracts of Cassia fistula were studied for the larvicidal, ovicidal, and repellent activity against A. aegypti. The active components Dymalol, Nymania-3, and triterpenes isolated from the extract of Dysoxylum malabaricum act as an oviposition repellent and/ or deterrent to A. stephensi (Govindachari et al 1999;Hisham et al 2001). The ethanolic leaf extract of Cassia obtusifolia (Rajkumar and Jebanesan 2009) and the piperitenone oxide isolated from essential oil of Mentha spicata (Tripathi et al 2004) were investigated for their larvicidal, ovicidal, and oviposition deterrence effects against A. stephensi.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of botanical extracts against Japanese encephalitis vector, Culex tritaeniorhynchus

Elango¹,

Rahuman²,

Bagavan³

et al. 2009

Parasitol Res

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The purpose of the present study was to assess the effect of leaf hexane and chloroform extracts of Aegle marmelos, Andrographis lineata, Andrographis paniculata, Cocculus hirsutus, Eclipta prostrata, and Tagetes erecta on repellent, ovicidal, and oviposition-deterrent activities against Culex tritaeniorhynchus Giles (Diptera: Culicidae). The repellent action of the plant extracts tested varied depending on the plant species, part, solvent used in extraction, and the extract dose. The hexane extract of A. paniculata was more effective in exhibiting the repellent action against the mosquito as compared with A. lineata extract. Complete protections for 150 min were found in hexane extract of A. paniculata at 500 ppm against mosquito bites. Mean percent hatchability of the ovicidal activity was observed 24 h after treatment. The percent hatchability was inversely proportional to the concentration of extract and directly proportional to the eggs. No hatchability was observed with hexane, and chloroform extracts of A. lineata, A. paniculata, and hexane extract of T. erecta were exerted at 1,000 ppm. The percentage of effective oviposition repellency were 95.90, 94.75, 95.04, 90.58, 87.93, 87.14, 94.82, 95.71, 92.26, 90.58, 83.35, and 78.16 at 500 ppm, and the lowest repellency was 69.93, 53.06, 64.81, 70.06, 51.82, 54.54, 48.31, 66.71, 68.82, 61.85, 34.84, and 39.53 at 31.25 ppm in hexane and chloroform extracts of A. marmelos, A. lineata, A. paniculata, C. hirsutus, E. prostrata, and T. erecta, respectively. The oviposition activity index values revealed that the solvent plant extracts have deterrent effect, and they caused a remarkable negative response resulting in oviposition of very few eggs. These results clearly reveal that the hexane extracts of A. marmelos and A. paniculata served as a potential repellent, ovicidal, and oviposition deterrent against Japanese encephalitis vector, C. tritaeniorhynchus.

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Triterpenoids from Dysoxylum malabaricum

Cited by 33 publications

References 8 publications

Oviposition-deterrent, ovicidal, and repellent activities of indigenous plant extracts against Anopheles subpictus Grassi (Diptera: Culicidae)

Oviposition-deterrent, ovicidal, and repellent activities of indigenous plant extracts against Anopheles subpictus Grassi (Diptera: Culicidae)

Phytochemical Analysis Radical Scavenging Activity of the Extracts of Costus picatus Linn Coccinia indica W& A, two Ethnic Medicinal Plants used in the Treatment of Diabetes mellitus

Efficacy of botanical extracts against Japanese encephalitis vector, Culex tritaeniorhynchus

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