Search Results - "Mathenge, Simon G."

Static and varied magnetic fields effects on shrinkage and sprouting characteristics of stored potatoes by Irungu, Francis Gichuho, Ndiritu, Francis G., Mutungi, Christopher M., Mathenge, Simon G., Mahungu, Symon M.

“…The effects of static and varying magnetic fields (MF) on shrinkage and sprouting characteristics of stored potatoes were studied. Static MF was produced by…”
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Plant use of the Maasai of Sekenani Valley, Maasai Mara, Kenya by Bussmann, Rainer W, Gilbreath, Genevieve G, Solio, John, Lutura, Manja, Lutuluo, Rumpac, Kunguru, Kimaren, Wood, Nick, Mathenge, Simon G

“…Traditional plant use is of tremendous importance in many societies, including most rural African communities. This knowledge is however, rapidly dwindling due…”
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Pyrenes and pyrendiones from Uvaria lucida by Moriyasu, Masataka, Takeuchi, Sousuke, Ichimaru, Momoyo, Nakatani, Noriyshi, Nishiyama, Yumi, Kato, Atsushi, Mathenge, Simon G, Juma, Francis D, ChaloMutiso, Patrick B

“…A chemical investigation of the chloroform extract of the roots of Uvaria ludida Benth. (Annonaceae), an important African traditional medicine, led to the…”
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Chemical studies on the roots of Uvaria welwitschii by Moriyasu, Masataka, Nakatani, Noriyoshi, Ichimaru, Momoyo, Nishiyama, Yumi, Kato, Atsushi, Mathenge, Simon G., Juma, Francis D., Chalo Mutiso, Patrick B.

“…A chemical investigation of the chloroform extract of the roots of Uvaria welwitschii (Annonaceae), an African traditional medicine taken for stomach ache, led…”
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Antinociceptive effects of the extracts of Xylopia parviflora bark and its alkaloidal components in experimental animals by Nishiyama, Yumi, Moriyasu, Masataka, Ichimaru, Momoyo, Iwasa, Kinuko, Kato, Atsushi, Mathenge, Simon G., Chalo Mutiso, Patrick B., Juma, Francis D.

“…In the present study, we attempted to elucidate the antinociceptive activity of Xylopia parviflora bark using the acetic acid-induced writhing test, hot plate…”
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Enhancement of potato (Solanum tuberosum L) postharvest quality by use of magnetic fields – A case of shangi potato variety by Irungu, Francis G., Tanga, Chrysantus M., Ndiritu, Francis G., Mathenge, Simon G., Kiruki, Fredrick G., Mahungu, Symon M.

“…Production of potatoes in the developing countries has been on the rise. This reinforces the growing importance of potatoes throughout Africa, Asia, and Latin…”
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Hydroxyespintanol and schefflerichalcone: two new compounds from Uvaria scheffleri by Ichimaru, Momoyo, Nakatani, Noriyoshi, Moriyasu, Masataka, Nishiyama, Yumi, Kato, Atsushi, Mathenge, Simon G., Juma, Francis D., ChaloMutiso, Patrick B.

“…A chemical investigation of the petroleum ether extract and chloroform extract of the root of Uvaria scheffleri Diels (Annonaceae) led to the isolation of two…”
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Chemical constituents and biological activities of Zanthoxylum usambarense by He, Weidong, Puyvelde, Luc Van, Kimpe, Norbert De, Verbruggen, Luc, Anthonissen, Kristel, Flaas, Mark Van der, Bosselaers, Jan, Mathenge, Simon G., Mudida, Francis P.

“…Bioassay‐guided fractionation of the dichloromethane extracts of the roots and the bark of Zanthoxylum usambarense led to the isolation of two physiologically…”
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Cytotoxic C-Benzylated Dihydrochalcones from Uvaria acuminata by Ichimaru, Momoyo, Nakatani, Noriyoshi, Takahashi, Tomoko, Nishiyama, Yumi, Moriyasu, Masataka, Kato, Atsushi, Mathenge, Simon G., Juma, Francis D., Nganga, Joseph N.

“…Two new C-benzylated dihydrochalcones, isochamuvaritin (1) and acumitin (2), have been isolated from the African medicinal plant Uvaria acuminata, together…”
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Tropane alkaloids from Erythroxylum emarginatum by Nishiyama, Yumi, Moriyasu, Masataka, Ichimaru, Momoyo, Sonoda, Maki, Iwasa, Kinuko, Kato, Atsushi, Juma, Francis D., Mathenge, Simon G., Mutiso, Patrick B. Chalo

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Secondary and tertiary isoquinoline alkaloids from Xylopia parviflora by Nishiyama, Yumi, Moriyasu, Masataka, Ichimaru, Momoyo, Iwasa, Kinuko, Kato, Atsushi, Mathenge, Simon G., Chalo Mutiso, Patrick B., Juma, Francis D.

“…Isoquinoline alkaloids, 10,11-dihydroxy-1,2-dimethoxynoraporphine ( 4) and parvinine ( 36) were isolated from the secondary and tertiary alkaloidal fraction of…”
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Quaternary isoquinoline alkaloids from Xylopia parviflora by Nishiyama, Yumi, Moriyasu, Masataka, Ichimaru, Momoyo, Iwasa, Kinuko, Kato, Atsushi, Mathenge, Simon G, Chalo Mutiso, Patrick B, Juma, Francis D

“…From the quaternary alkaloidal fraction of the bark and the root of Xylopia parviflora (Annonaceae), four isoquinoline alkaloids, xylopinidine,…”
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Structural Elucidation of New Flavanones Isolated from Erythrina abyssinica by Ichimaru, Momoyo, Moriyasu, Masataka, Nishiyama, Yumi, Kato, Atsushi, Mathenge, Simon G, Juma, Fransis D, Nganga, Joseph N

“…Three new prenylated flavanones, abyssinin I (1), II (2), and III (3), have been isolated from the African medicinal plant Erythrina abyssinica, together with…”
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Neurotrophic and antileukemic daphnane diterpenoids from Synaptolepis kirkii by He, Weidong, Cik, Miroslav, Van Puyvelde, Luc, Van Dun, Jacky, Appendino, Giovanni, Lesage, Anne, Van der Lindin, Ilse, Leysen, Josée E, Wouters, Walter, Mathenge, Simon G, Mudida, Francis P, De Kimpe, Norbert

“…Biological assay guided fractionation of a dichloromethane extract of Synaptolepis kirkii led to the isolation of four new and five known daphnane-type…”
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A Benzochromene from the Roots of Pentas bussei by BUKURU, Jacques F., VAN, Tuyen Nguyen, VAN PUYVELDE, Luc, MATHENGE, Simon G., MUDIDA, Francis P., DE KIMPE, Norbert

“…A new homoprenylated benzochromene, methyl-5,10-dihydroxy-7-methoxy-3-methyl-3-[4-methyl-3-pentenyl]-3H-benzo[f]chromene-9-carboxylate (1), was isolated from…”
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Kirkinine, a New Daphnane Orthoester with Potent Neurotrophic Activity from Synaptolepis kirkii by He, Weidong, Cik, Miroslav, Lesage, Anne, Van der Linden, Ilse, De Kimpe, Norbert, Appendino, Giovanni, Bracke, Johan, Mathenge, Simon G, Mudida, Francis P, Leysen, Josée E, Van Puyvelde, Luc

“…The bioassay-guided fractionation of a dichloromethane extract from the roots of Synaptolepis kirkii using neuronal viability as a model allowed the isolation…”
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A Benzochromene from the Roots of Pentas b ussei by Bukuru, Jacques F, Van, Tuyen Nguyen, Van Puyvelde, Luc, Mathenge, Simon G, Mudida, Francis P, De Kimpe, Norbert

“…A new homoprenylated benzochromene, methyl-5,10-dihydroxy-7-methoxy-3-methyl-3-[4-methyl-3-pentenyl]-3H-benzo[f]chromene-9-carboxylate (1), was isolated from…”
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Absolute configurations of two acyclic triterpenoids from Ekebergia capensis by Nishiyama, Yumi, Moriyasu, Masataka, Ichimaru, Momoyo, Kato, Atsushi, Mathenge, Simon G, Nganga, Joseph N, Juma, Francis D

“…The absolute configurations of two acyclic triterpenoids 1 and 2, previously isolated from the bark of Ekebergia capensis (Meliaceae) have been determined by…”
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Isolation of Alkaloidal Constituents of Zanthoxylum usambarense and Zanthoxylum chalybeum Using Ion-Pair HPLC by Kato, Atsushi, Moriyasu, Masataka, Ichimaru, Momoyo, Nishiyama, Yumi, Juma, Francis D, Nganga, Joseph N, Mathenge, Simon G, Ogeto, John O

“…Quaternary alkaloids of two Kenyan medicinal plants belonging to the genus Zanthoxylum, Z. usambarense and Z. chalybeum, were examined using ion-pair HPLC…”
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Minor Flavanones from Erythrina a byssinica by Moriyasu, Masataka, Ichimaru, Momoyo, Nishiyama, Yumi, Kato, Atsushi, Mathenge, Simon G, Juma, Francis D, Nganga, Joseph N

“…Four new prenylated flavanones, abyssinone-V 4‘-methyl ether (1) and abyssinoflavanones IV (2), V (3), and VI (4), have been isolated as minor flavanones from…”
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