Karine Ndjoko
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Explore the profile of Karine Ndjoko including associated specialties, affiliations and a list of published articles.
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Articles
13
Citations
100
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Recent Articles
1.
Colombo R, Yariwake J, Queiroz E, Ndjoko K, Hostettmann K
Phytochem Anal
. 2006 Oct;
17(5):337-43.
PMID: 17019935
HPLC-UV-MS (APCI-MS/MS and CID/MS) was utilised for the identification of eight additional flavone glycosides from sugarcane (Saccharum officinarum L., Gramineae) extracts of bagasse, leaves and juice ('garapa'). Relevant information about...
2.
Tiberti L, Yariwake J, Ndjoko K, Hostettmann K
J Chromatogr B Analyt Technol Biomed Life Sci
. 2006 Oct;
846(1-2):378-84.
PMID: 17011840
A comparative analysis of the flavonoid components of the leaves of two medicinal plants known in Brazil as "espinheira santa", namely, Maytenus ilicifolia Mart. ex Reiss. and M. aquifolium Mart....
3.
Colombo R, Yariwake J, Queiroz E, Ndjoko K, Hostettmann K
J Chromatogr A
. 2005 Jul;
1082(1):51-9.
PMID: 16038194
Sugarcane (Saccharum officinarum L., Gramineae) bagasse and leaves were investigated for their flavonoid content and transgenic sugarcane ("Bowman-Birk" and "Kunitz") was compared with non-modified ("control") plants. Analyses were carried out...
4.
Daskiewicz J, Depeint F, Viornery L, Bayet C, Comte-Sarrazin G, Comte G, et al.
J Med Chem
. 2005 Apr;
48(8):2790-804.
PMID: 15828817
A library of 42 natural and synthetic flavonoids has been screened for their effect on cell proliferation and apoptosis in a human colonic cell line (HT-29). Examples of different classes...
5.
Mroczek T, Ndjoko K, Glowniak K, Hostettmann K
J Chromatogr A
. 2004 Dec;
1056(1-2):91-7.
PMID: 15595537
On-line structure characterization of pyrrolizidine alkaloids in two various plant species (Onosma stellulatum W.K., family Boraginaceae and Emilia coccinea Sims., family Compositae) was performed by a newly elaborated RP-HPLC ion...
6.
Urbain A, Marston A, Queiroz E, Ndjoko K, Hostettmann K
Planta Med
. 2004 Oct;
70(10):1011-4.
PMID: 15490334
In order to discover new acetylcholinesterase (AChE) inhibitors, different plant extracts were screened by a previously established TLC bioautographic method. The methanol extract of Gentiana campestris leaves exhibited significant inhibition...
7.
Alonso-Salces R, Ndjoko K, Queiroz E, Ioset J, Hostettmann K, Berrueta L, et al.
J Chromatogr A
. 2004 Sep;
1046(1-2):89-100.
PMID: 15387175
Apple polyphenols were characterised by means of hyphenated techniques such as HPLC coupled to UV photodiode array detection (LC-DAD) and to mass spectrometry (LC-MS). LC-MS using atmospheric pressure ionisation (APCI)...
8.
Zanolari B, Ndjoko K, Ioset J, Marston A, Hostettmann K
Phytochem Anal
. 2003 Aug;
14(4):193-201.
PMID: 12892413
The development and validation of a rapid qualitative and quantitative method based on an HPLC-UV-MS technique with atmospheric pressure chemical ionisation and electrospray ionisation for the analysis of yohimbine in...
9.
Wolfender J, Ndjoko K, Hostettmann K
J Chromatogr A
. 2003 Jul;
1000(1-2):437-55.
PMID: 12877183
In order to discover new bioactive compounds from plant sources which could become new leads or new drugs, extracts should be submitted at the same time to chemical screening and...
10.
Chaaib F, Queiroz E, Ndjoko K, Diallo D, Hostettmann K
Planta Med
. 2003 Apr;
69(4):316-20.
PMID: 12709897
Phytochemical investigation of the CH 2 Cl 2 extract of Fagara zanthoxyloides Lam. (Rutaceae) led to the isolation of eleven compounds. One phenylethanoid derivative is a new natural product. The...