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Volume 16
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10.3390/app16031472
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Article

Ultrasound-Assisted Extraction of Carotenoids from Carrot Pomace: Process Optimization and Application Potential

by
Oana Emilia Constantin
1,
Genica Florina Oncica
1,
Florina Stoica
2,
Roxana Nicoleta Rațu
1,3,
Nicoleta Stănciuc
1,
Marija Banožić
4,
Nada Ćujić Nikolić
5,
Claudia Mureșan
6 and
Gabriela Râpeanu
1,*
1
Department of Food Science, Food Engineering, Biotechnology and Aquaculture, Faculty of Food Science and Engineering, Dunărea de Jos University of Galati, 800201 Galați, Romania
2
Department of Pedotechnics, Faculty of Agriculture, “Ion Ionescu de la Brad” University of Life Sciences, 3 Mihail Sadoveanu Alley, 700489 Iasi, Romania
3
Department of Food Technologies, Faculty of Agriculture, “Ion Ionescu de la Brad” University of Life Sciences, 3 Mihail Sadoveanu Alley, 700489 Iasi, Romania
4
Faculty of Agriculture and Food Technology, University of Mostar, Biskupa Čule bb, 88000 Mostar, Bosnia and Herzegovina
5
Institute for Medicinal Plants Research “Dr. Josif Pančić”, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
6
Faculty of Food Engineering, Tourism, and Environmental Protection, Aurel Vlaicu University of Arad, 2 Elena Dragoi Street, 310330 Arad, Romania
*
Author to whom correspondence should be addressed.
Appl. Sci. 2026, 16(3), 1472; https://doi.org/10.3390/app16031472
Submission received: 30 December 2025 / Revised: 20 January 2026 / Accepted: 30 January 2026 / Published: 2 February 2026
(This article belongs to the Special Issue Sustainable Recovery of Bioactive Compounds from Food Industry By-Products)
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Abstract

Carrots, scientifically referred to as Daucus carota L., are widely recognized as one of the most consumed vegetables, frequently utilized in culinary applications and juice manufacturing, both commercially and domestically. This results in significant amounts of waste, primarily from the pomace. Carrot pomace represents a promising low-cost raw material for the production of value-added ingredients for the food and feed industries. The extraction of total carotenoids (TC) and the evaluation of antioxidant activity (AA) were optimized in this study by employing environmentally friendly methods, including ultrasonication. The Central Composite Design (CCD) was utilized in order to establish a response surface approach for the purpose of evaluating the impacts of extraction duration, temperature, and the ratio of material to solvent on the recovery of TC and AA. Under optimal conditions, the TC content was 38.20 mg/g of dry weight, with an antioxidant capacity of 1522.02 μmol TE/g DW, as determined by the ABTS assay. According to the findings, the optimal parameters for extraction were a temperature of 58.9 °C, a solvent mixture ratio of 20.35 mL/g, and a duration of 51 min. The proposed ultrasound-assisted process provides a sustainable and scalable approach for carrot pomace valorization, contributing to the development of circular and resource-efficient agro-industrial processing.
Keywords: Daucus carota L.; carrot pomace; carotene extraction; antioxidant activity; CCD Daucus carota L.; carrot pomace; carotene extraction; antioxidant activity; CCD

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MDPI and ACS Style

Constantin, O.E.; Oncica, G.F.; Stoica, F.; Rațu, R.N.; Stănciuc, N.; Banožić, M.; Ćujić Nikolić, N.; Mureșan, C.; Râpeanu, G. Ultrasound-Assisted Extraction of Carotenoids from Carrot Pomace: Process Optimization and Application Potential. Appl. Sci. 2026, 16, 1472. https://doi.org/10.3390/app16031472

AMA Style

Constantin OE, Oncica GF, Stoica F, Rațu RN, Stănciuc N, Banožić M, Ćujić Nikolić N, Mureșan C, Râpeanu G. Ultrasound-Assisted Extraction of Carotenoids from Carrot Pomace: Process Optimization and Application Potential. Applied Sciences. 2026; 16(3):1472. https://doi.org/10.3390/app16031472

Chicago/Turabian Style

Constantin, Oana Emilia, Genica Florina Oncica, Florina Stoica, Roxana Nicoleta Rațu, Nicoleta Stănciuc, Marija Banožić, Nada Ćujić Nikolić, Claudia Mureșan, and Gabriela Râpeanu. 2026. "Ultrasound-Assisted Extraction of Carotenoids from Carrot Pomace: Process Optimization and Application Potential" Applied Sciences 16, no. 3: 1472. https://doi.org/10.3390/app16031472

APA Style

Constantin, O. E., Oncica, G. F., Stoica, F., Rațu, R. N., Stănciuc, N., Banožić, M., Ćujić Nikolić, N., Mureșan, C., & Râpeanu, G. (2026). Ultrasound-Assisted Extraction of Carotenoids from Carrot Pomace: Process Optimization and Application Potential. Applied Sciences, 16(3), 1472. https://doi.org/10.3390/app16031472

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