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Research Article Open access CC BY 4.0

Extraction of Natural Food Color from Tomato, Carrot and Turmeric

Fahriha Nur A Kabir, Shohel Rana Palleb, Md. Abdul Halim, Sourav Biswas Nayan, M. Burhan Uddin, Mohammad Gulzarul Aziz

European Journal of Nutrition & Food Safety · pp. 175–188 · Published 9 May 2024

10.9734/ejnfs/2024/v16i51433

Abstract

The demand for natural and healthier food products has increased dramatically in recent years due to growing consumer awareness of the impact food has on health as well as evidence of adverse effects from various ingredients, including some additives. This study evaluates the extraction method, solvent effects, precipitation, identification, purification, and lycopene, carotene, and curcumin content from turmeric, carrot, and tomato. Along-side, tomato, carrot, and turmeric samples were subjected to two different extraction and purification processes: solvent extraction for lycopene and carotene, and alkalization for curcumin. The samples were extracted and purified at room temperature (30ºC) and chilled (4ºC) for a period of three weeks. Tomato extracts had lycopene contents ranging from 0.0153 to 0.0362 mg/100g. obtained carotene content, which was then extracted using a solvent in the range of 61.43 to 81.72 mg/100g. The alkalization process produced a curcumin concentration of 91.17 to 110.41 mg/100g. Comparing the ethyl acetate extraction technique to the anti-solvent method, a greater amount of lycopene (red) and carotene (orange) precipitation was obtained. The maximum amount of curcumin precipitation obtained in lower pH solution. Lower pH is important to maintain the stability of curcumin precipitation. The experience of this research work suggested that lycopene from tomatoes, carotene from carrots, and curcumin from turmeric might be an excellent source to meet the increasing need for natural colorants.

Natural color lycopene carotene curcumin tomato carrot turmeric food colorin food color

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