Influence of betalain natural dye from red beet in gum acacia biopolymer: optical and electrical perspective
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Himadri Mullick
Abstract
In this study, the development and characterization of a plant-derived biopolymer, gum acacia, chemically modified by an herbal dye, red beetroot (Latin Beta vulgaris) has been presented. Red beetroot, a flowering plant with abundant phytochemicals, prevents diseases and produces colorful chromophores. Chromophores interact with incident intense electromagnetic field and thereby absorb radiation in ultraviolet and/or visible region of the spectrum, promoting low to high-level electron excitation between different energy states. Such transition influences variation in optical and electrical properties of the system. Optical properties of both biopolymer unmodified gum acacia specimen and after modification with red beet induced chromophore are investigated by UV–visible absorption spectroscopy. Pronounced light absorption is observed in the visible range of the spectrum compared to the unmodified specimen in which absorption is found to be observed in the deep ultraviolet range. Electrical characterization of the modified biopolymer with red beetroot extract suggests eviation from ideal dielectric relaxation obeying Debye mechanism. Electrical conductivity is found to be enhanced over pure specimen. These properties are eligible for application in energy storage devices, especially as a sensitizer in photovoltaic material which are ongoing extensive research area.
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Research ethics: Not applicable.
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Author contributions: Author is the sole contributor.
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Competing interests: The author declares no conflict of interest regarding this article.
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Research funding: Author expresses gratitude to Bose Institute, Kolkata, India and Jadavpur University, Kolkata, India for providing laboratory facility. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
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Data availability: No.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Material Properties
- Influence of betalain natural dye from red beet in gum acacia biopolymer: optical and electrical perspective
- Effect of molecular weight distribution on the structure and properties of polypropylene cast film and stretched microporous membrane
- Preparation and Assembly
- Preparation and properties of dynamic crosslinked styrene butadiene rubber
- Antimicrobial hydrocolloid composite sponge with on-demand dissolving property, consisting mainly of zinc oxide nanoparticles, hydroxypropyl chitosan, and polyvinyl alcohol
- Engineering and Processing
- Multiobjective optimization of injection molding parameters based on the GEK-MPDE method
Artikel in diesem Heft
- Frontmatter
- Material Properties
- Influence of betalain natural dye from red beet in gum acacia biopolymer: optical and electrical perspective
- Effect of molecular weight distribution on the structure and properties of polypropylene cast film and stretched microporous membrane
- Preparation and Assembly
- Preparation and properties of dynamic crosslinked styrene butadiene rubber
- Antimicrobial hydrocolloid composite sponge with on-demand dissolving property, consisting mainly of zinc oxide nanoparticles, hydroxypropyl chitosan, and polyvinyl alcohol
- Engineering and Processing
- Multiobjective optimization of injection molding parameters based on the GEK-MPDE method
