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Effect of Drying Method on Phytochemical Compositions and Inhibition Efficiency of Alchornea Laxiflora and Mucuna Flagellepes Leaves Extracts in Corrosion Prevention
American Journal of Physical Chemistry
Volume 8, Issue 2, June 2019, Pages: 32-40
Received: Jun. 15, 2019; Accepted: Jul. 13, 2019; Published: Aug. 13, 2019
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Adebayo Oluwafemi Lawrence, Department of Chemical and Process Engineering, University of Strathclyde, Glasgow, United Kingdom; Chemistry Department, College of Education, Ikere, Nigeria
Emmanuel Folorunso Olasehinde, Department of Chemistry, Federal University of Technology, Akure, Nigeria
Labunmi Lajide, Department of Chemistry, Federal University of Technology, Akure, Nigeria
Daniel Oloruntoba, Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Nigeria
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This study was aimed at investigating the influence of different drying methods on the photochemical composition and inhibition efficiency of Alchornea laxiflora and Muccuna flagellepes leaves extracts in corrosion prevention. The fresh samples of the leaves were collected, sorted, dried using two different drying methods viz; air drying and sun drying methods. The dried plant samples were ground separately sieved using 0.25µm and then extracted with ethanol using maceration method and then concentrated the filtrate in a water bath at 600C to obtained air dried Alchornea laxiflora leaves (AALL), air dried Muccuna flagellepes leaves (AMFL), sun dried Alchornea laxiflora leaves (SALL) and sun dried Muccuna flagellepes leaves (SMFL) extracts. The extract of each sample was analyzed separately for their phytochemical constituents using appropriate methods. From the results, there was variation in the composition in respect of the phytochemical of interest but it could be concluded that the drying methods have little effect on the phytochemical composition of the studied plant but air drying methods could be adopted as it gave highest content (AALL: Sapolin 45.55 mg/g, tannin 10.58mg/g, flavnoid 7.49mg/g, Terpenoid 7.06 mg/g, Alkaloid 35.61mg/g, phytobalatin 2.43mg/g and cardiac glycoside 4.72mg/g; AMFL: Sapolin 28.55mg/g, Tannin 5.39 mg/g, Flavnoid 6.42 mg/g, Terpenoid 5.94 mg/g, Alkaloid 4.53mg/g, Cardiac glycoside 6.33 mg/g; SALL: Saponin 20.00mg/g, Tannin 4.04 mg/g, Flavnoid 1.91 mg/g, Terpenoid 6.03 mg/g, Alkaloid 12.56 mg/g, Phytobalatin 2.57 mg/g, Cardiac glycoside 3.86mg/g: SMFL: Sapolin 15.00 mg/g, Tannin 3.82 mg/g, Terpenoid 4.82 mg/g, Alkaloid 6.25 mg/g and cardiac glycoside 4.93 mg/g. The corrosion inhibition efficiency of the samples extract on mild steel in 1.0M HCl solution was investigated using weight loss measurements. The weight loss measurement indicates an increase in corrosion inhibition efficiencies that reach 90.02% and 84.92% in AALL and AMFL extract and 79.74% and 72.12 in the SALL and SMFL extract respectively. The weight loss data established that the inhibition efficiency on mild steel increases with increase in the concentration of the plant extracts but decreased with increase in temperature. Thermodynamic parameters such as enthalpy change, entropy change, and activation energy were evaluated. Kinetics of the reaction in the presence of the extracts revealed that it follows a first order reaction and the half-life increased as the concentration of the extract increases.
Alchornea Laxiflora Leaves, Mucuna Flagellepes Leaves, Phytochemical, Corrosion, Thermodynamics, Kinetics
To cite this article
Adebayo Oluwafemi Lawrence, Emmanuel Folorunso Olasehinde, Labunmi Lajide, Daniel Oloruntoba, Effect of Drying Method on Phytochemical Compositions and Inhibition Efficiency of Alchornea Laxiflora and Mucuna Flagellepes Leaves Extracts in Corrosion Prevention, American Journal of Physical Chemistry. Vol. 8, No. 2, 2019, pp. 32-40. doi: 10.11648/j.ajpc.20190802.11
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V. S. Sastri, Corrosion Inhibitors Principles and applications. John Wiley & Sons: New York; 1998.
P. B. Raja, M. G. Sethuraman, Mater. Lett. 62 (2008) 113–116.
D. K. Singh, S. Kumar, G. Udayabhanu, and R. P. John, “4(N, N-dimethyl amino) benzaldehyde nicotinic hydrazone as corrosion inhibitor for mild steel in 1M HCl solution: An experimental and theoretical study, “Journal of Molecular Liquids, 2016, vol. 216, pp. 738–746.
K. K. Alaneme, S. J. Olusegun, and O. T. Adelowo, “Corrosion inhibition and adsorption mechanism studies of Hunteria umbellata seed husk extracts on mild steel immersed in acidic solutions,” Alexandria Engineering Journal, 2016, vol. 55, no. 1, pp. 673–681.
M. V. Fiori-Bimbi, P. E. Alvarez, H. Vaca, and C. A. Gervasi, “Corrosion inhibition of mild steel in HCL solution by pectin,” Corrosion Science, 2015, vol. 92, pp. 192–199.
P. Roy, P. Karfa, U. Adhikari, and D. Sukul, “Corrosion inhibition of mild steel in acidic medium by polyacrylamide grafted Guar gum with various grafting percentage: effect of intramolecular synergism,” Corrosion Science, 2014, vol. 88, pp. 246–253.
G. Sigircik, T. Tüken, and M. Erbil, “Assessment of the inhibition efficiency of 3, 4- diaminobenzonitrile against the corrosion of steel,” Corrosion Science, 2016, vol. 102, pp. 437–445.
K. Krishnaveni and J. Ravichandran, “Effect of aqueous extract of leaves of orinda tinctoria on corrosion inhibition of aluminium surface inHCl medium, “Transactions of Nonferrous Metals Society of China, 2014, vol. 24, no. 8, pp. 2704–2712.
M. S. Rabeta, and S. Y. Lai. Effects of drying, fermented and unfermented tea of Ocimum tenuiflorum Linn on the antioxidant capacity. International Food Research Journal, 2013 20 (4): 1601-1608.
B. S. Davi, and S. Rajandran. Influence of garlic extract on the inhibition efficiency of trisodium citrate-Zn2+ system. International Journal of Chemical Science and Technology, 2011, 1: 79–87.
P. C. Okafor, V. I. Osabor, and E. E. Ebenso, Eco-friendly corrosion inhibitor: Inhibitive action of ethanol extracts of Garcinia kola for the corrosion of mild steel in H2SO4 solutions, Pigment and Resin Technology, 2007, 35 (5): 299-305.
E. E. Oguzie, Influence of halide ions on the inhibitive effect of Congo red dye on the corrosion of mild steel in sulphuric acid solution. Material Chemistry and Physics, 2005, 87 (1): 212–217.
S. S. Handa, S. P. S Khanuga, G. Longo, D. D. Rakesh: Extraction Technologies for medicinal and Aromatic plants (1st edn.), no. 66. Italy: United Nations Industrial Development Organization and the International Centre for Science and High Technology, 2008: 747–752.
N. O., Eddy Ethanol Extract of Phyllantus amarus as a green inhibitor for the corrosion of mild steel in H2SO4Portugaliae Electrochemical Acta, 2009; 27 (5): 579-589.
J. B. Harborne, Phytochemical Methods: A Guide to Modern Techniques of plant Analysis. Chapman & Hall Ltd, London, 1973, 278pp.
D. E. Okwu, Evaluation of the Chemical Composition of indigenous species and flavouring agents, Global Journal of Pure and Applied Science, 2001. 7 (3), 455-459.
O. O. Odeja, G. Obi, C. E. Ogwuche, E. E. Elemike, O. O. Oderinlo. International Journal of Herbal Medicine, 2014; 2 (4): 26-3.
A. Sofowara, Medicinal Plants and Traditional Medicine in Africa, Ibadan, Nigeria, Spectrum Book Ltd., 1993, 289.
O. Odeja, G. Obi, C. Ene Ogwuche,, E. E. Elemike,, and Y. Oderinlo, Phytochemical Screening, Antioxidant and Antimicrobial activities of Senna occidentalis (L.) Leaves Extract, Journal of Clinical Phytoscience, 2015, 2-6.
De Souza F. S. and A. Spinelli, “Caffeic acid as a green corrosion inhibitor for mild steel,” Corrosion Science, 2009, vol. 51, no. 3, pp. 642–649.
Abdel-Gaber A. M., B. A. AbdEL-Nabey, M. Saadawy, Corros. Sci., 2009, 51 p. 1038.
Oguzie E. E. Corros. Sci., 2008, 50, p. 2993.
Olasehinde, E. F, Ogunjobi, J. K., Akinlosotu, O. M., Omogbehin, S. A., Investigation of the Inhibitive Properties of Alchornea laxiflora leaves on the Corrosion of Mild Steel in HCl: Thermodynamics and Kinetic Study ‘Journal of American Science, 2015; 11 (1s).
A. Tosun, M. Ergun: Protection of Corrosion of Carbon Steel by Inhibitors in Containing Solutions, G. U. Journal of Science, 2006, 19 (3), 149-154.
P. R. Vijayalakshmi, R. Rajalakshmi and S. Subhashini, Corrosion Inhibition of Aqueous Extract of Cocos nucifera -Coconut Palm-Petiole Extract from Destructive Distillation for the Corrosion of Mild Steel in Acidic Medium. Portugaliae Electrochemical Acta, 2011; 29 (1): 14-15.
M. Lebrini, F. Robert, A. Lecante, C. Roos Corrosion inhibition of C38 steel in 1M hydrochloric acid medium by alkaloids extract from Oxandra asbeckii plant. Corrosion Science. 2012; 53 (2): 687–695.
B. U. Ugi, I. E. Uwah, C. N. Kelvin, Combating corrosion of mild steel in hydrogen tetraoxosulphate (VI) acid environment using green corrosion inhibitors: Chysophyllum albidum plant. Journal of Applied Chemical Science International, 2016, 6 (4): 169–179.
A. O. James, O. Akaranta, Inhibition of Corrosion of Zinc in Hydrochloric Acid Solution by Red Onion Skin Acetone Extract, Res. J. Chem. Sci., 2011, 1 (1): 31-37.
O. O. Adeyemi, O. O. Olubomehin,: Investigation of Anthocleista djalonensis Stem Bark Extract as Corrosion Inhibitor for Aluminum. The pacific Journal of Science and Technology, 2010, 11 (2): 455-462.
L. A. Nnanna, B. N. Onwuagba, I. M. Mejeha, K. B. Okeoma, Inhibition effects of some plant extracts on the acid corrosion of aluminium alloy, African Journal of Pure and Applied Chemistry, 2010, 4 (1), p. 11-16.
M. A. Chidiebere, E. E. Oguzie, L. Liu, Y. Li & F. Wang, Adsorption and corrosion inhibiting effect of riboflavin on Q235 mild steel corrosion in acidic environments. Mater. Chem. Phys. 2015, 156, 95-104.
E. S. Ferreira, C. Giacomelli, F. C. Giacomelli A. Spinelli, Evaluation of the inhibitor effect of ascorbic acid on the corrosion of mild steel. Mater. Chem. Phys. 2004, 83,129–134.
S. Manimegalai and P. Manjul: Thermodynamic and Adsorption studies for corrosion inhibition of Mild steel in Aqueous Media by Sargasam swartzii (Brown algae) j. Mater. Environ. Sci. 2015, 6 (6) 1629-1637.
N. O. Eddy Ethanol Extract of Phyllantus amarus as a green inhibitor for the corrosion of mild steel in H2SO4 Portugaliae Electrochemical Acta, 2009; 27 (5): 579-589.
E. E. Ebenso, Effect of halide ions on the corrosion inhibition of mild steel in H2SO4 using methyl red. Part 1 Bull. Electrochem. 2003; 19: 209–216.
F. Bentiss, M. Lebrini, H. Vezin, F., Chai, M., Traisnel, M. Lagrene, Enhanced corrosion resistance of carbon steel in normal sulfuric acid medium by some macrocyclic polyether compounds containing a 1,3,4-thiadiazole moiety AC impedance and computational studies. Corr. sci. 2005, 51, 2165–2173.
U. J. Ekpe, P. C. Okafor, E. E. Ebenso. Inhibition of the Acid Corrosion of Aluminium by some derivatives of Thiosemicarbazon, Bulletin of Chemical Society of Ethiopia, 2004; 18 (2): 181-192.
A. L. Obike, C. N. Emeruwa, V. I. Ajiwe, J. C. Igwe. Corrosion Inhibition and Adsorption Behaviour of Methanol Extract of Spondias cytherea leaves on Mild Steel Corrosion in 5.0MH2SO4, InternationalJournal of Innovative Research in Science, Engineering and Technology, 2016, (5) 2319–8753.
S. S. Shivakumar, K. N. S. Mohana, Ziziphus mauritiana leaves extract as corrosion inhibitor for mild steel in sulphuric acid and hydrochloric acid solution. European Journal of Chemistry. 2012; 3 (4): 426–432.
M. A. Quraishi, D. K. Yadav, I. Ahmad: Green approach to corrosion inhibition by black pepper extract in hydrochloric acid solution. The Open Corrosion Journal. 2009; 2: 56–60.
H. Cang, W. Shi, J. Shao, Q. Xu: Study of Stevia rebaudiana leaves as green corrosion inhibitor for mild steel in sulphuric acid by electrochemical techniques. International Journal of Electrochemical Science. 2012; 7 (4): 3726–36.
R. S. Mayanglambam, V. Sharma, G. Singh: Musa paradisiacal extract as a green inhibitor for corrosion of mild steel in 0.5M sulphuric acid solution. Portugaliae Electrochemical Acta. 2011; 29 (6): 405–417.
H. F. Chahul, C. O. Akalezi, A. M. Ayuba, Effect of adenine, guanine and hypoxanthine on the corrosion of mild steel in H3PO4 Int. J. Chem. Sci. 2015 (7) 2006-3350.
Q. B. Zhang, Y. X. Hua, Corrosion inhibition of mild steel by alkyl imidazolium ionic liquids in hydrochloric acid, Electro. chem. Acta. 2009, (54) 1881-1887.
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