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Tropical Journal of Pharmaceutical Research
Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
ISSN: 1596-5996
EISSN: 1596-9827
Vol. 15, No. 2, 2016, pp. 363-369
Bioline Code: pr16048
Full paper language: English
Document type: Research Article
Document available free of charge

Tropical Journal of Pharmaceutical Research, Vol. 15, No. 2, 2016, pp. 363-369

 en Pharmacokinetics of Caffeic Acid from Methanol Seed Extract of Syzygium cumini check for this species in other resources L in Rats
Islam, Muhammad; Shehzadi, Naureen; Salman, Muhammad; Zahid, Fakhra; Khan, Humaira M.; Amjad, Sohail; Khan, Muhammad T.; Danish, Muhammad Z.; Bukhari, Nadeem I. & Hussain, Khalid


Purpose: To describe caffeic acid-based pharmacokinetics of methanol extract of seed of Syzygium cumini check for this species in other resources L. in rats.
Methods: A dose of the extract (500 mg, equivalent to 37.135 mg caffeic acid) was administered orally to 6 male Wister rats, weighing 200 ± 10 g. Blood samples (0.5 mL), collected from the tail vein at 0, 15, 30, 60, 120, 240 and 720 min, were processed and analyzed using high performance liquid chromatography and detected with florescent light detector (FLD).
Results: Following the administration of the extract, caffeic acid achieved maximum plasma concentration (5.96 ± 0.49 μg/mL) in 1.0 h which was also the time to achieve maximum concentration (Tmax). Mean resident time (MRT) and half-life (t1/2) were 4.092 ± 0.94 h and 0.14 ± 0.01 h, respectively.
Conclusion: The results indicate that absorption of caffeic acid from the oral route is fast, but lower amounts are absorbed. The method developed for the extraction of caffeic acid from the plasma and HPLC determination may be useful in establishing phyto-bioequivalence between Syzygium cumini seed products.

Caffeic acid; Pharmacokinetics; Syzygium cumini; Phytobioequivalence; Absorption

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