International Journal of Chemical Studies
Vol. 6, Issue 2 (2018)
CuO nanoparticle mediated elicitation of polyphenols and antioxidant activity in chicory (Cichorium intybus L.)
Author(s): Lenin Laishram, Naveen Chandra Pant, Oinam Surjit Singh, Rakesh Dhoundiyal, Karishma Joshi and CS Pandey
Abstract: The present study on effect of CuO nanoparticles on Cichorium intybus L. significantly enhanced the polyphenols content in treated plants at 10 and 20 DAT. Higher total phenol content i.e., 28.171±0.125 and 30.759±1.730 mg gallic acid equivalents g-1 extract, was observed 20 DAT in shoots and roots of treated plants, respectively. Higher flavonoid content i.e., 9.450±0.220 and 12.878±0.648 mg quercetin equivalents g-1 extract was also observed at 20 DAT in both shoots and roots of treated plants. The tannin content at 20 DAT in shoots and roots of treated plants also differed significantly w.r.t shoots and roots of control at 10 and 20 DAT, respectively. The shoots and roots of treated plants showed significantly (p≤0.05) higher total antioxidant activity at 10 DAT. The total antioxidant activity within shoots showed a significant (p≤0.01) positive correlation (0.938) with total antioxidant activity observed in roots of Chicorium. Phenol and flavonoid content within the roots showed a positive correlation with total antioxidant activity within the roots i.e., 0.241 and 0.384, respectively. Highest scavenging of DPPH radical was observed within shoots and roots of treated plants at 10 DAT, and it differed significantly (p≤0.05) w.r.t corresponding activity at 20 DAT. DPPH radical scavenging within shoots showed a significant positive correlation (p≤0.01) with corresponding activity in roots (0.939). DPPH radical scavenging activity within roots showed a negative correlation with total phenol, flavonoid and content within the roots (i.e., -0.453, -0.348 and -0.415, respectively) as observed by lower IC50 values of the extracts. Thus the results clearly show that CuO nanoparticles significantly enhanced polyphenols and corresponding antioxidant activity in Cichorium.
Pages: 3270-3276 | 270 Views 19 Downloads
How to cite this article:
Lenin Laishram, Naveen Chandra Pant, Oinam Surjit Singh, Rakesh Dhoundiyal, Karishma Joshi, CS Pandey. CuO nanoparticle mediated elicitation of polyphenols and antioxidant activity in chicory (Cichorium intybus L.). Int J Chem Stud 2018;6(2):3270-3276.