XXIV.—On Rissoa pulcherrima

New furanoid diterpenes from Caesalpinia pulcherrima.

Four new cassane-type furanoditerpenoids (1-4) were isolated from the air-dried leaves of Caesalpinia pulcherrima. Their structures were elucidated by spectral data interpretation. The exocyclic methylene compound 1 readily isomerized and oxidized to the benzofuran 4. Benzyl 2,6-dimethoxybenzoate (5) was also identified in this study. Antimicrobial tests on 1-5 indicated that they were active a...

Aloe pulcherrima – a beautiful Ethiopian endemic

The aloes of Ethiopia and Eritrea are moderately diverse. Edwards et al (1997) recognised 38 species, including Aloe vituensis which has yet to be located north of Ethiopia’s border with Kenya, so it is not, as yet, an Ethiopian Aloe. The most recent complete survey of aloes in Ethiopia and Eritrea (Sebsebe Demissew & Nordal, 2010) recognised 46 species, again including A. vituensis. Since that...

Pulcherrimin, The Pigment of Candida Pulcherrima.

Antioxidant and cytotoxic activities of Caesalpinia pulcherrima wood.

Antioxidant and cytotoxic activities of the methanolic and aqueous extracts of Caesalpinia pulcherrima wood were studied in in vitro models. Both extracts exhibited strong antioxidant activity, as evidenced by the low IC50 values in both 1,1-diphenyl-2-picryl hydrazyl (DPPH), nitric oxide and superoxide scavenging methods; the values were found to be less or comparable to those of gallic acid, ...

Antimicrobial, Antioxidant and Cytotoxic Potential of Caesalpinia pulcherrima Flower

Most of the world’s populations residing in developing countries depend on alternative medicine and use of plant ingredients. Caesalpinia pulcherrima (Fabaceae) is used in folk medicine for the treatment of various diseases including asthma, bronchitis, cholera, diarrhea, dysentery and malarial infection. The present study was undertaken to determine antimicrobial, antioxidant and cytotoxic act...