News Updates Friday 22nd Feb 2019 :
  • Welcome to INPRESSCO, world's leading publishers, We have served more than 10000+ authors
  • Articles are invited in engineering, science, technology, management, industrial engg, biotechnology etc.
  • Paper submission last date of Jan/Feb 2019 is 23 Feb 2019, Submit online or at
  • Our journals are indexed in NAAS, University of Regensburg Germany, Google Scholar, Cross Ref etc.
  • DOI is given to all articles

Biological Activities of Extracts of Different Spices and Plants

Author : Mohamed Sellami, Bouthaina Ghariani, Hanen Louati, Nabil Miled and Youssef Gargouri

Pages : 1051-1060
Download PDF

Aqueous, alcoholic and hexanic extracts of different spices and plants materials were investigated for their antioxidant and antibacterial activities. The total flavonoid contents of extracts varied from 1.65 μg quercetin equivalent/mg (water extract of red pepper) to 340.13 μg quercetin equivalent/mg (alcoholic extract of miswak). The aqueous extract of black tea and the ethanolic extracts of both cinnamon and clove displayed the highest total phenolic contents with 196.57, 194.06 and 198.16 μg gallic acid equivalent/mg, respectively. Antioxydant activities of extracts were assessed using DPPH-free radical scavenging method. Ethanolic and aqueous extracts of cinnamon, ethanolic extract of clove and aqueous extract of coffee displayed the strongest antioxidant activity with IC50 values of 1.45, 1.96, 2.16, 3.02 and 5.4 μg/ml, respectively. Antibacterial activities of extracts against several bacterial genera, known to be pathogenic to humans, were investigated using the agar well diffusion method. The hexanic extracts were effective against most of the microorganisms tested. Particularly, S. xylosus was found to be highly sensitive to most of the hexanic extracts and especially to those of miswak, clove and turmeric with minimal inhibitory concentrations values of 15.62 and 31.25 and 62.5 μg/mL, respectively.

Keywords: spices, plants, antibacterial, antioxidant, total phenolics, total flavonoids

Article published in International Journal of Current  Engineering  and Technology, Vol.3,No.3(Aug- 2013)



Call for Papers
  1. IJCET- Jan/Feb 2019 Issue

    Submission Last Date
    23 Feb
  2. DOI is given to all articles
  3. Current Issue
  4. IJTT-March-2019
  5. IJAIE-March-2019
  6. IJCSB-March-2019
  • Inpressco Google Scholar
  • Inpressco Science Central
  • Inpressco Global impact factor
  • Inpressco aap

International Press corporation is licensed under a Creative Commons Attribution-Non Commercial NoDerivs 3.0 Unported License
©2010-2018 INPRESSCO® All Rights Reserved