Kinetics Release of Cymbopogon Citatrus Essential Oil from Starch Beads: For Food Security in Nigeria

Authors

  • Itodo, I. N 2Department of Pharmacology and Toxicology, College of Veterinary Medicine, Federal University of Agriculture, Zuru, Kebbi State, Nigeria
  • Ada Gabriel 2Department of Pharmacology and Toxicology, College of Veterinary Medicine, Federal University of Agriculture, Zuru, Kebbi State, Nigeria
  • Nnamonu, L. A Department of Pharmacology and Toxicology, College of Veterinary Medicine, Federal University of Agriculture, Zuru, Kebbi State, Nigeria
  • Tor-Anyii, T. A. Department of Pharmacology and Toxicology, College of Veterinary Medicine, Federal University of Agriculture, Zuru, Kebbi State, Nigeria

DOI:

https://doi.org/10.47672/ajfsn.1725

Keywords:

Cymbopogon Citatrus, Kinetics, Starch Beads, Oil

Abstract

Purpose: The essential oil of Cymbopogon citratus was extracted using a green method (i.e. essential oil still), encapsulated into cassava starch matrix using sodium alginate as a binder.

Materials and methods: The encapsulated sodium alginate starch beads were characterized using Scanning Electron Microscope (SEM) and Fourier Transform Infrared Spectrophotometer (FTIR), the release kinetics of the oil was monitored by UV-Visible Spectrophotometry from two (2) aqueous media, buffer of pH 4 and pH 9, and analysed before exploring their potential for insecticide and repellant property and controlled release.

Findings: The result for SEM showed the sodium alginate starch beads were spherical in shape, average radius of 5 µm, modal area of 0.10 µm2 and average size of 852.28 nm and were good absorbent of essential oil in which its volatility can be entrapped. Release kinetics showed its maximum peak at 2 hours and data obtained spectrophotometrically were further fitted to the various Kinetics Models such as First Order, Pseudo Second Order, Zero Order and Higuchi Order Kinetics Model from which their equations gave (R2= 0.9991, 0.9188) (K= 0.1547, 0.0738), (R2= 0.9962, 0.9201) (K= -0.0071, -0.0038), (R2= 0.9929, 0.8059) (K= 0.0065, 0.0247) and (R2= 0.8389, 0.7216) (K= 0.033, 0.0392), respectively, from the two (2) aqueous media, buffer of pH 4 and pH 9, and it followed the First Order Kinetic Model, which indicated the absorption of the encapsulated essential oil into the porous material of the sodium alginate starch beads and its FTIR showed the functionalities such as OH, CO, CHO, C=C, =C-H and C-H present conformed to the structure of citral, starch and algin.

Implications to Theory, Practice and Policy: The green method of the extraction of essential oils as shown in Appendix viii (i.e. the locally made essential oil still) should be improved upon to ease extraction of essential oil from barks, roots, seeds and leaves of plants.

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Published

2024-01-03

How to Cite

Itodo, Gabriel, A. ., Nnamonu, & Tor-Anyii. (2024). Kinetics Release of Cymbopogon Citatrus Essential Oil from Starch Beads: For Food Security in Nigeria. American Journal of Food Sciences and Nutrition, 5(3), 1–10. https://doi.org/10.47672/ajfsn.1725

Issue

Vol. 5 No. 3 (2023): Vol 5 No 3 (2023)

Section

Articles

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Copyright (c) 2023 Itodo, I. N, Ada Gabriel, Nnamonu, L. A, Tor-Anyii, T. A.

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