Characterization of β-carotene Extracted from Orange Peels and its Use as a Natural Colorant and Antioxidant in Ice Cream
Abd El-Rahman, M., Darwish, S., Megali, H., Abd El-Hakim, H. (2019). Characterization of β-carotene Extracted from Orange Peels and its Use as a Natural Colorant and Antioxidant in Ice Cream. EKB Journal Management System, 47(2), 173-185. doi: 10.21608/ejfs.2019.17836.1023
Mokhless Abd El-Rahman; Soumia Darwish; Hamada K. H. Megali; Hassan I. Abd El-Hakim. "Characterization of β-carotene Extracted from Orange Peels and its Use as a Natural Colorant and Antioxidant in Ice Cream". EKB Journal Management System, 47, 2, 2019, 173-185. doi: 10.21608/ejfs.2019.17836.1023
Abd El-Rahman, M., Darwish, S., Megali, H., Abd El-Hakim, H. (2019). 'Characterization of β-carotene Extracted from Orange Peels and its Use as a Natural Colorant and Antioxidant in Ice Cream', EKB Journal Management System, 47(2), pp. 173-185. doi: 10.21608/ejfs.2019.17836.1023
Abd El-Rahman, M., Darwish, S., Megali, H., Abd El-Hakim, H. Characterization of β-carotene Extracted from Orange Peels and its Use as a Natural Colorant and Antioxidant in Ice Cream. EKB Journal Management System, 2019; 47(2): 173-185. doi: 10.21608/ejfs.2019.17836.1023

Characterization of β-carotene Extracted from Orange Peels and its Use as a Natural Colorant and Antioxidant in Ice Cream

Egyptian Journal of Food Science
Article 15, Volume 47, Issue 2, 2019, Page 173-185  XML PDF (1.09 MB)
Document Type: Original Article
DOI: 10.21608/ejfs.2019.17836.1023
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Authors
Mokhless Abd El-Rahman email 1; Soumia Darwish1; Hamada K. H. Megali2; Hassan I. Abd El-Hakim2
1Food Sci. and Tech. Fac. of Agric. Assiut Uni. Assiut, Egypt
2Horti. Crops Tech. Res. Dept., Food Tech. Res. Institute, Agric. Res. Center, Giza, Egypt
Abstract
The orange manufacturing sector produces great quantities of waste, mostly orange peels that generate environmental issues. These residues are rich sources of pigments and bioactive chemicals. β-carotene is one of the carotenoids, an antioxidant fat-soluble pigment. This study was performed to extract β-carotene from orange peels and investigate its stability to some treatments, including temperature, storage, light, pH and its antioxidant characteristics. Carotenoids were determined and identified using high performance liquid chromatography. The total content of phenolic compounds and flavonoids in the dried orange peels were found to be 16.12 and 2.06 mg / g, and β-carotene 14.51 mg/100 g, respectively. Additionally, antioxidant activity of orange peels powder was found to be 88.65% based on DPPH assay. As storage duration and the exposure to high temperature and light increased, beta-carotene degradation increased, while it was more stable in the alkaline medium. The antioxidant activity of β-carotene extract was found to be comparable to that of industrial BHT based on oil oxidation stability assay. In the sensory evaluation, panelists preferred ice cream incorporated with 1% β-carotene extract. During storage of ice cream for 21 days at -18˚C, the β-carotene content decreased by about 5%.
Keywords
orange peels; β-carotene; stability
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