Biomass valorization of liquid whey into carbon quantum dots via hydrothermal process for food pathogenic bactericidal activity and photocatalytic degradation of brilliant red dye

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dc.authoridchawla, Prince/0000-0002-2383-7925
dc.contributor.authorThakur, Sweezee
dc.contributor.authorBains, Aarti
dc.contributor.authorKumar, Anil
dc.contributor.authorGoksen, Gulden
dc.contributor.authorYaqoob, Mudasir
dc.contributor.authorParvez, Mohammad Khalid
dc.contributor.authorAl-Dosari, Mohammed S.
dc.date.accessioned2025-03-17T12:27:17Z
dc.date.available2025-03-17T12:27:17Z
dc.date.issued2024
dc.departmentTarsus Üniversitesi
dc.description.abstractWhey is the primary waste material of the dairy industries; therefore, the present study focuses on the valorization of milk processing industry-originated liquid whey into valuable products, specifically liquid whey carbon quantum dots (LW-CQDs) for pathogenic bactericidal and photocatalytic dye reduction efficacy. Facile synthesis of fluorescent LW-CQDs was carried out by employing a green hydrothermal approach at 200 degrees C for 12 h. Several analytical techniques were used to confirm the thermally stable spherical particles, measuring 9.04 +/- 0.76 nm size in diameter, primarily composed of carbon and oxygen LW-CQDs. The presence of diverse functional groups (hydroxyl, carboxyl, carbonyl, and methyl groups) of LW-CQDs contributed to overall optical properties, which manifested a blue emission peak at 418 nm with 240 nm excitation wavelength in fluorescence spectroscopy. UV-Visible spectra featured two peaks (pi -> pi * transition of C = C bonds and n -> pi * transition of C = O bonds) at around 249 and 293 nm, respectively. Moreover, the synthesized LW-CQDs exhibited a significantly higher zone of inhibition (25.98 +/- 0.17 mm) and significantly lower minimum inhibitory concentration (4.47 +/- 0.01 mu l/ml) against the Staphylococcus aureus. In addition, LW-CQDs revealed a higher killing rate of reaction for S. aureus as compared to K. pneumoniae, P. aeruginosa, and S. typhi and remarkably degraded 92.95 % of brilliant red dye under visible light (2000 lux). Hence, these facile LW-CQDs hold potential for applications in the effectiveness of antimicrobial and photocatalytic dye reduction activity, which show valuable contributions to both waste valorization and sustainable material development.
dc.description.sponsorshipKing Saud University, Riyadh, Saudi Arabia [RSP2024R379]
dc.description.sponsorshipThe research was funded through the Researchers Supporting Project Number (RSP2024R379) , King Saud University, Riyadh, Saudi Arabia.
dc.identifier.doi10.1016/j.fbio.2024.103764
dc.identifier.issn2212-4292
dc.identifier.issn2212-4306
dc.identifier.scopus2-s2.0-85187025773
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.fbio.2024.103764
dc.identifier.urihttps://hdl.handle.net/20.500.13099/2172
dc.identifier.volume58
dc.identifier.wosWOS:001218233400001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofFood Bioscience
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectDye reduction
dc.subjectPhotoluminescence
dc.subjectAntimicrobial
dc.subjectSpectroscopy
dc.subjectSensors
dc.subjectCircular economy
dc.titleBiomass valorization of liquid whey into carbon quantum dots via hydrothermal process for food pathogenic bactericidal activity and photocatalytic degradation of brilliant red dye
dc.typeArticle

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