Development of Aloe vera-green banana Saba-curcumin composite film for colorimetric detection of Ferrum (II)

Vonnie Merillyn Joseph and Bong, Jing Ting and Rovina Kobun and Erna Husna Kana and Ling, Felicia Wen Xia and Nur ‘Aqilah Nasir Md and Roswanira Abdul Wahab (2022) Development of Aloe vera-green banana Saba-curcumin composite film for colorimetric detection of Ferrum (II). Polymers, 14 (2353). pp. 1-16. ISSN 2073-4360

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URL: https://www.mdpi.com/2073-4360/14/12/2353/htm

Abstract

This study was performed to develop and characterize a bio-film composed of Aloe vera (Aloe barbadensis), green banana Saba (Musa acuminata x balbisiana), and curcumin for the detection of Fe2+ ions. Cross-linking interaction between banana starch-aloe vera gel and banana starch-curcumin enhanced l the sensing performance of the composite film towards divalent metal ions of Fe2+. The morphological structure of the Aloe vera-banana starch-curcumin composite revealed a smooth and compact surface without cracks and some heterogeneity when observed under Scanning Electron Microscopy (SEM). The thickness, density, color property, opacity, biodegradation, moisture content, water-solubility, water absorption, swelling degree, and water vapor permeability of bio-films were measured. The incorporation of aloe vera gel and curcumin particles onto the banana starch film has successfully improved the film properties. The formation of the curcumin-ferrum (II) complex has triggered the film to transform color from yellow to greenish-brown after interaction with Fe2+ ions that exhibit an accuracy of 101.11% within a swift reaction time. Good linearity (R2 = 0.9845) of response on colorimetric analysis was also obtained in Fe2+ ions concentration that ranges from 0 to 100 ppm, with a limit of detection and quantification found at 27.84 ppm and 92.81 ppm, respectively. In this context, the film was highly selective towards Fe2+ ions because no changes of color occur through naked eye observation when films interact with other metal ions, including Fe3+, Pb2+, Ni2+, Cd2+, and Cu2+. Thus, these findings encourage curcumin-based starch films as sensing materials to detect Fe2+ ions in the field of food and agriculture.

Item Type:	Article
Keyword:	Bio-film , Heavy metals , Natural source , Sensor
Subjects:	Q Science > QD Chemistry > QD1-999 Chemistry T Technology > TX Home economics > TX1-1110 Home economics > TX341-641 Nutrition. Foods and food supply
Department:	FACULTY > Faculty of Food Science and Nutrition
Depositing User:	SAFRUDIN BIN DARUN -
Date Deposited:	30 Sep 2022 18:56
Last Modified:	30 Sep 2022 18:56
URI:	https://eprints.ums.edu.my/id/eprint/34180

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