Author

Sylvia Awino Opiyo

Observed names: Opiyo, S.A., Opiyo, Sylvia, S. A. Opiyo, Sylvia A. Opiyo, Sylvia Awino, Sylvia Opiyo

Institution: Murang'a University of Technology

Observed institutions: Maseno University, Murang'a University of Technology, Technical University of Munich

ORCID: 0000-0002-7355-6355

Observed ORCID: 0000-0002-7355-6355

OpenAlex ID: A5029978292

Phytoecdysteroids from the Stem Bark of Vitex doniana and Their Anti-Inflammatory Effects

2012 · Charles Ochieng, Ismail Ishola, et al. · Planta Medica · 36

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7α-Acetylugandensolide and antimicrobial properties of Warburgia ugandensis extracts and isolates against sweet potato pathogens

2011 · Sylvia A. Opiyo, Lawrence O.A. Manguro, et al. · Phytochemistry Letters · 31

Cyclooxygenase inhibitory compounds from Gymnosporia heterophylla aerial parts

2017 · Charles O. Ochieng, Sylvia A. Opiyo, et al. · Fitoterapia · 27

Bioactive carbazole alkaloids from Alysicarpus ovalifolius (Schumach)

2015 · Angeline Atieno Ochung’, Lawrence Arot Oyango Manguro, et al. · Journal of the Korean Society for Applied Biological Chemistry · 21

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Antimicrobial Compounds from Terminalia brownii against Sweet Potato Pathogens

2011 · Sylvia A. Opiyo, Lawrence O.A. Manguro, et al. · The Natural Products Journal · 20

Development of a Multiplex Pcr Technique for Simultaneous Detection of Sweet Potato Feathery Mottle Virus and Sweet Potato Chlorotic Stunt Virus

2010 · Sylvia A. Opiyo, Elijah Ateka, et al. · Journal of Plant Pathology · 16

Chemical composition and repellency of Nigella sativa L. seed essential oil against Anopheles gambiae sensu stricto

2020 · Ephantus G. Ndirangu, Sylvia A. Opiyo, et al. · DOAJ (DOAJ: Directory of Open Access Journals) · 15

Triterpenes of Commiphora holtziana oleo-gum resin

2009 · Lawrence Onyango Arot Manguro, Sylvia Awino Opiyo, et al. · Canadian Journal of Chemistry · 15

Survey of Sweet Potato Viruses in Western Kenya and Detection of Cucumber Mosaic Virus

2010 · Sylvia A. Opiyo, Elijah Ateka, et al. · Journal of Plant Pathology · 13

Chemical Constituents of Essential Oils from Three Eucalyptus Species Acclimatized in Ethiopia and Kenya

2010 · Lawrence O. A. Manguro, Sylvia A. Opiyo, et al. · Journal of Essential Oil Bearing Plants · 12

Morphometric Study of Senna didymobotrya (Fresen.) H. S. Irwin and Barneby in Kenya

2017 · Pascaline Jeruto, P.F. Arama, et al. · Journals & Books Hosting (International Knowledge Sharing Platform) · 11

Biopesticidal Extractives and Compounds from Warburgia ugandensis against Maize Weevil (Sitophilus zeamais)

2015 · Sylvia A. Opiyo, Lawrence O. A. Manguro, et al. · The Natural Products Journal · 11

A new sterol diglycoside from Conyza floribunda

2009 · Sylvia A. Opiyo, Joseph A. Ogur, et al. · GRO · 11

Chemical constituents of Ocimum kilimandscharicum Guerke acclimatized in Kakamega Forest, Kenya

2019 · A. M. Makenzi, L. O. A. Manguro, et al. · Bulletin of the Chemical Society of Ethiopia · 9

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A Review of Biological Activities and Phytochemistry of Rhus Species

2021 · Sylvia A. Opiyo, Peter W. Njoroge, et al. · 8

Analgesics from Lonchocarpus eriocalyx Harms

2018 · Angeline Atieno Ochung’, Phillip O. Owuor, et al. · DOAJ (DOAJ: Directory of Open Access Journals) · 8

Flavonol glycosides with insecticidal activity from methanol extract of Annona mucosa Jacq. leaves

2019 · Albert Mulianga Makenzi, Lawrence Onyango Arot Manguro, et al. · DOAJ (DOAJ: Directory of Open Access Journals) · 7

A review of 13C NMR spectra of drimane sesquiterpenes

2019 · Sylvia A. Opiyo · DOAJ (DOAJ: Directory of Open Access Journals) · 7

Some Antibacterial and Antifungal Compounds from Root Bark of Rhus natalensis

2019 · Peter W. Njoroge, Sylvia A. Opiyo · 7

Warburgia Ugandensis: A Review of Compounds and Bioactivity

2023 · Sylvia Opiyo · International Journal of Pharmacognosy and Chemistry · 6

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Characterization of Clays from selected sites for Refractory Application

2019 · Hassan M. Lomertwala, Peter W. Njoroge, et al. · International Journal of Scientific and Research Publications · 6

Evaluation of Warburgia ugandensis Extracts and Compounds for Crop Protection against Prostephanus truncates

2020 · Sylvia A. Opiyo · Advances in Analytical Chemistry of Scientific & Academic Publishing · 5

Characterization of Immunogenic Soluble Crude Proteins from Biomphalaria Pfeifferi Against Schistosoma mansoni

2020 · Kennedy M. Kuria, Sylvia A. Opiyo · 5

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Triterpenes from Elaeodendron schweinfurthianum and Their Antimicrobial Activities against Crop Pathogens

2017 · Sylvia Awino, Lawrence Onyango Arot Manguro, et al. · 5

Analgesic Activity of Conyza Floribunda Extracts in Swiss Albino Mice

2021 · Sylvia A. Opiyo, Kennedy K. Muna, et al. · 4

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Works count: 43

Citation count: 336

H-index: 11

I10-index: 13