Search Results - "Majinda, Runner R. T."

Tylosema esculentum extractives and their bioactivity by Mazimba, Ofentse, Majinda, Runner R.T., Modibedi, Ceciliah, Masesane, Ishmael B., Cencič, Avrelija, Chingwaru, Walter

“…The investigation of Tylosema esculentum (Morama) husks, cotyledons, and tuber yielded griffonilide 2, compound 1, griffonin 3, gallic acid 4, protocatechuic…”
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Methoxylated bibenzyls and isoflavones from Baphia massaiensis Taub by Kgakatsi, Nayang A., Majinda, Runner R. T., Masesane, Ishmael B., Gobe, Irene

“…Chemical investigation of the stem bark of Baphia massaiensis Taub. led to the isolation of two new natural compounds named 3-hydroxy-2,5,2′-trimethoxybibenzyl…”
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New isoflavan from Erythrina livingstoniana by Kgakatsi, Nayang A., Majinda, Runner R. T., Masesane, Ishmael B., Nwamadi, Mutshinyalo S., Demissie, Taye B., Ombito, Japheth O., Gobe, Irene

“…Chemical investigation of the root wood of Erythrina livingstoniana led to the isolation of one previously undescribed isoflavan…”
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Dihydro-β-agarofuran Sesquiterpenes and Pentacyclic Triterpenoids from the Root Bark of Osyris lanceolata by Yeboah, Elizabeth M. O, Majinda, Runner R. T, Kadziola, Anders, Muller, Alfred

“…Three new dihydro-β-agarofuran polyesters, 1α,9β-difuranoyloxy-2-oxodihydro-β-agarofuran (1), 1α,9β-difuranoyloxy-2-oxo-3-enedihydro-β-agarofuran (2), and…”
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GC-MS Analysis and Preliminary Antimicrobial Activity of Albizia adianthifolia (Schumach) and Pterocarpus angolensis (DC) by Abubakar, Mustapha N, Majinda, Runner R T

“…The non-polar components of two leguminoceae species (Schumach), and (DC) were investigated. GC-MS analysis of the crude -hexane and chloroform extracts…”
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A flavanone and antimicrobial activities of the constituents of extracts from Mundulea sericea by Mazimba, Ofentse, Masesane, Ishmael B., Majinda, Runner R.T.

“…In this study, 12 compounds, which include a new flavanone 5-methoxy mundulin (1), were isolated from the leaves, stem bark and twigs of Mundulea sericea…”
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Fast and efficient synthesis of flavanones from cinnamic acids by Bedane, Kibrom Gebreheiwot, Majinda, Runner R. T., Masesane, Ishmael B.

“…A fast and efficient synthesis of flavanones from cinnamic acids in three steps has been developed. First, the cinnamic acid was converted to cinnamyol…”
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New flavonoids from the stem bark of Erythrina caffra Thunb by Desta, Zelalem Yibralign, Sewald, Norbert, Majinda, Runner R.T.

“…Three new flavonoids 5,7-dihydroxy-2′,4′-dimethoxy-5′-formylisoflavanone (erycaffra E) (1),…”
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Antimicrobial and radical scavenging flavonoids from the stem wood of Erythrina latissima by Chacha, Musa, Bojase-Moleta, Gomotsang, Majinda, Runner R.T.

“…The stem wood of Erythrina latissima yielded two isoflavones, erylatissins A 1 and B 2, and a flavanones…”
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An Update of Erythrinan Alkaloids and Their Pharmacological Activities by Majinda, Runner R T

“…The period of the past 5 years has witnessed a remarkable increase in all of the number, structural variety, and complexity of erythrinan alkaloids reported…”
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Three new isoflavonoids from Erythrina caffra by Desta, Zelalem Yibralign, Majinda, Runner R T

“…Three new isoflavonoids, 5,7-dihydroxy-2',4'-dimethoxy-5'-(3-methylbut-2-enyl) isoflavanone (erycaffra A) (1),…”
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Polyphenols: a diverse class of multi-target anti-HIV-1 agents by Andrae-Marobela, Kerstin, Ghislain, Fotso Wabo, Okatch, Harriet, Majinda, Runner R T

“…Polyphenols are a versatile class of compounds that represent secondary metabolites from higher plants and which are abundantly present in the human diet…”
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Antimicrobial and antioxidant flavonoids from the root wood of Bolusanthus speciosus by Erasto, Paul, Bojase-Moleta, Gomotsang, Majinda, Runner R.T

“…Three new flavonoids-5,7,4′-trihydroxy-6-[1-hydroxy-2-methylbuten-2-yl]isoflavone (isogancaonin C), 7,2′-dihydroxy-4′-methoxyisoflav-3-ene (bolusanthin III),…”
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Erythrinaline alkaloids from the flowers and pods of Erythrina lysistemon and their DPPH radical scavenging properties by Juma, Benard F, Majinda, Runner R.T

“…Four new erythrinaline alkaloids ( 1, 2, 4, 8) were isolated from the flowers and pods of Erythrina lysistemon along with 10 known alkaloids, five for the…”
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Extraction and isolation of saponins by Majinda, Runner R T

“…Due to their special structural features, extraction and isolation of saponins poses a serious challenge. Conventional methods have been explored as well as…”
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Antioxidant phenolic compounds from the leaves of Erica Arborea (Ericaceae) by Nazemiyeh, Hossein, Bahadori, Fatemeh, Delazar, Abbas, Ay, Mehmet, Topçu, Gülaçti, Nahar, Lutfun, Majinda, Runner R.T., Sarker, Satyajit D.

“…Reversed-phase HPLC analyses of the methanol extract of the leaves of Erica arborea afforded a novel phenylpropanoid glucoside, named ericarborin, together…”
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Phytochemical constituents of Vangueria infausta: their radical scavenging and antimicrobial activities by Mbukwa, Elbert, Chacha, Musa, Majinda, Runner R. T.

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Radical scavenging activity and total phenolic content of extracts of the root bark of Osyris lanceolata by Yeboah, Elizabeth M O, Majinda, Runner R T

“…The root bark of Osyris lanceolata was screened for its antioxidant potential using three variations of the DPPH radical scavenging method viz a…”
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Flavanones of Erythrina livingstoniana with antioxidant properties by Bedane, Kibrom Gebreheiwot, Kusari, Souvik, Masesane, Ishmael B., Spiteller, Michael, Majinda, Runner R.T.

“…Six new flavanones (1–6), together with six known compounds were isolated from Erythrina livingstoniana. Their structures were elucidated on the basis of NMR…”
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Constituents of Gardenia volkensii : their brine shrimp lethality and DPPH radical scavenging properties by Juma, Bernard F., Majinda, Runner R. T.

“…The seeds and the pulp of Gardenia volkensii yielded one new iridiod, namely 4-(2N-gardenamide)n-butanoic acid, together with the known iridoids genipin and…”
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