J. Orwa

Publications45
h-index13
Citations393
Highly Influential Citations15
Claim Author Page
Author pages are created from data sourced from our academic publisher partnerships and public sources.

Recommended Authors

  • B. Cowling
  • 789 Publications • 16,046 Citations
  • R. Booy
  • 423 Publications • 12,516 Citations
  • G. Rukunga
  • 43 Publications • 1,083 Citations
  • F. Jansman
  • 64 Publications • 1,085 Citations
  • Publications
  • Influence
Sequencing of bacitracin A and related minor components by liquid chromatography/electrospray ionization ion trap tandem mass spectrometry.
A selective reversed-phase liquid chromatography/mass spectrometry (LC/MS(n)) method is described for the characterization of related compounds in commercial bacitracin samples. Mass spectral data… Expand
  • 28
  • 4
The use of Toddalia asiatica (L) Lam. (Rutaceae) in traditional medicine practice in East Africa.
Toddalia asiatica (L) Lam. (Rutaceae) has been used by traditional health practitioners in East Africa for management of diseases, however, the extent of its usefulness has not been established to… Expand
  • 59
  • 2
  • PDF
Mass spectrometric fragmentation of cyclic peptides belonging to the polymyxin and colistin antibiotics studied by ion trap and quadrupole/orthogonal-acceleration time-of-flight technology.
Electrospray ionization linked to quadrupole/orthogonal-acceleration time-of-flight (Q/oaTOF) and ion trap equipment was used to study the fragmentation behavior of the linear side-chain cyclized… Expand
  • 24
  • 1
Liquid chromatography-ion trap tandem mass spectrometry for the characterization of polypeptide antibiotics of the colistin series in commercial samples.
A selective reversed-phase liquid chromatography-tandem mass spectrometry method is described for the characterization of related substances in the colistin complex. Mass spectral data were acquired… Expand
  • 26
  • 1
Herbal medicine in Kenya: evidence of safety and efficacy.
  • J. Orwa
  • Medicine
  • East African medical journal
  • 1 July 2002
  • 28
  • 1
Traditional healers and the management of malaria in Kisumu district, Kenya.
OBJECTIVE To document the ethnobotanical information on malaria treatment with the goal of eventually testing the medicinal plant extracts for antiplasmodial activity. DESIGN A prospective study.… Expand
  • 20
  • 1
Nutritional value and consumption of black ants (Carebara vidua Smith) within the Lake Victoria region in Kenya.
The edible insects of the Lake Victoria region which provided food and medicine, have suffered the effects of mismanaged environment. Our case study of Carebara vidua Smith (black ant) which is an… Expand
  • 32
  • 1
  • PDF
Antimalarial and safety evaluation of extracts from Toddalia asiatica (L) Lam. (Rutaceae).
ETHNOPHARMACOLOGICAL RELEVANCE Toddalia asiatica (L) Lam. (Rutaceae) is a medicinal plant traditionally used in Kenya by many communities for the treatment of malaria and other ailments. All parts of… Expand
  • 20
  • 1
Antiplasmodial and larvicidal compounds of Toddalia asiatica root bark
AbstractFrom the n-hexane, ethyl acetate and methanol extracts of Toddalia asiatica root bark were isolated eight compounds (1–8) which were identified on the basis of both spectroscopic and physical… Expand
  • 6
  • 1
Use of mayflies as total replacement of Rastrineobola argentea in diets for catfish, Clarias gariepinus in Lake Victoria basin.
  • 3
  • 1
...
1
2
3
4
5
...