Evaluation of extracts from potato and tomato wastes as natural antioxidant additives

María Del Carmen Robles-Ramírez, Ricardo Monterrubio-López, Rosalva Mora-Escobedo, María Del Carmen Beltrán-Orozco

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6 Citations (Scopus)

Abstract

The industrialization of potato and tomato produces large amount of wastes. Previous studies have demonstrated that these by-products are rich in antioxidant compounds. In this study, the composition and antioxidant efficacy of extracts from potato and tomato by-products were determined in order to evaluate their potential as food additives. Potato and tomato wastes showed to be good sources of fiber, protein and antioxidants. The antioxidant activity and total phenolic, carotenoid and lycopene contents were determined in methanol, ethanol and acetone extracts of the residues. Methanol was the best solvent for the extraction of phenolics while acetone was the best in the extraction of carotenoids in both residues. The greatest antioxidant activity (14.10 μmol Trolox/g) resulted when potato peels were extracted with ethanol. The oxidative stability of canola oil containing either ethanol extracts of potato and tomato wastes (200 and 400 mg/kg) or the synthetic antioxidant BHT (200 mg/kg), compared to oil without antioxidants, was evaluated by measuring their peroxide values, conjugated dienes and p-anisidine value after 72 and 144 h storage at 65 °C. The order of antioxidant efficacy was as follows: potato peels > BHT > tomato residues. The results showed that ethanol extracts of potato and tomato waste could be used as natural antioxidant additives in the protection of vegetable oils.
Original languageAmerican English
Pages (from-to)66-73
Number of pages58
JournalArchivos Latinoamericanos de Nutricion
StatePublished - 1 Mar 2016

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Lycopersicon esculentum
Solanum tuberosum
Antioxidants
Ethanol
Butylated Hydroxytoluene
Carotenoids
Acetone
Methanol
Food Additives
Plant Oils
Peroxides
Oils

Cite this

Del Carmen Robles-Ramírez, M., Monterrubio-López, R., Mora-Escobedo, R., & Del Carmen Beltrán-Orozco, M. (2016). Evaluation of extracts from potato and tomato wastes as natural antioxidant additives. Archivos Latinoamericanos de Nutricion, 66-73.
Del Carmen Robles-Ramírez, María ; Monterrubio-López, Ricardo ; Mora-Escobedo, Rosalva ; Del Carmen Beltrán-Orozco, María. / Evaluation of extracts from potato and tomato wastes as natural antioxidant additives. In: Archivos Latinoamericanos de Nutricion. 2016 ; pp. 66-73.
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Del Carmen Robles-Ramírez, M, Monterrubio-López, R, Mora-Escobedo, R & Del Carmen Beltrán-Orozco, M 2016, 'Evaluation of extracts from potato and tomato wastes as natural antioxidant additives', Archivos Latinoamericanos de Nutricion, pp. 66-73.

Evaluation of extracts from potato and tomato wastes as natural antioxidant additives. / Del Carmen Robles-Ramírez, María; Monterrubio-López, Ricardo; Mora-Escobedo, Rosalva; Del Carmen Beltrán-Orozco, María.

In: Archivos Latinoamericanos de Nutricion, 01.03.2016, p. 66-73.

Research output: Contribution to journalArticleResearchpeer-review

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Del Carmen Robles-Ramírez M, Monterrubio-López R, Mora-Escobedo R, Del Carmen Beltrán-Orozco M. Evaluation of extracts from potato and tomato wastes as natural antioxidant additives. Archivos Latinoamericanos de Nutricion. 2016 Mar 1;66-73.