The aim of this research was to assess the physico-chemical properties and shelf-life of press-extracted oils at two temperatures (60 °C and 80 °C) from five Peruvian castor bean ecotypes. A wide variation for all traits was observed. Low acidity index, low peroxide index and absence of p-anisidine were recorded. The total tocopherol contents ranged from 798 to 1040 mg/kg. A higher antioxidant capacity was detected in methanolic extracts than in the hexane extract. From the Rancimat performed at 150-170 °C, the predicted shelf-life at 25 °C ranged from 0.15 to 8.93 years; the higher extraction temperature led to a longer shelf-life, probably because of enzyme inactivation.
Physico-chemical characteristics and oxidative stability of oils from different Peruvian castor bean ecotypes [Características físico-químicas y estabilidad oxidativa de aceites de diferentes ecotipos de ricino peruano] / L. Huamán, S. Huincho, E. Aguirre, G. Rodriguez, A. Brandolini, A. Hidalgo. - In: GRASAS Y ACEITES. - ISSN 0017-3495. - 73:1(2022 Mar), pp. e445.1-e445.14. [10.3989/gya.1016202]
Physico-chemical characteristics and oxidative stability of oils from different Peruvian castor bean ecotypes = Características físico-químicas y estabilidad oxidativa de aceites de diferentes ecotipos de ricino peruano
A. Hidalgo
Ultimo
2022
Abstract
The aim of this research was to assess the physico-chemical properties and shelf-life of press-extracted oils at two temperatures (60 °C and 80 °C) from five Peruvian castor bean ecotypes. A wide variation for all traits was observed. Low acidity index, low peroxide index and absence of p-anisidine were recorded. The total tocopherol contents ranged from 798 to 1040 mg/kg. A higher antioxidant capacity was detected in methanolic extracts than in the hexane extract. From the Rancimat performed at 150-170 °C, the predicted shelf-life at 25 °C ranged from 0.15 to 8.93 years; the higher extraction temperature led to a longer shelf-life, probably because of enzyme inactivation.File | Dimensione | Formato | |
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