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Título

Content of carotenoids, tocopherols, sterols, triterpenic and aliphatic alcohols, and volatile compounds in six walnuts (Juglans regia L.) varieties

AutorAbdallah, I. B.; Tlili, N.; Martínez-Force, Enrique ; Pérez Rubio, Ana Gracia ; Pérez Camino, María del Carmen ; Albouchi, A.; Boukhchina, Sadok
Fecha de publicación2015
EditorElsevier
CitaciónFood Chemistry 173: 972- 978 (2015)
Resumen© 2014 Elsevier Ltd. All rights reserved. The aim of this work was to study the content of tocopherols, sterols, triterpenic and aliphatic alcohols, carotenoids, and volatile compounds in the kernel oils from six walnut (Juglans regia L.) varieties. The levels of β-carotene ranged between 0.22 and 0.62 mg/kg, followed by lutein (0.01-0.06 mg/kg). The total content of tocopherol ranged from 186.5 to 436.2 mg/kg of the extracted oil and the major isoform in all samples was γ-tocopherol. The most abundant phytosterol was β-sitosterol (974-1494 mg/kg) followed by campesterol then Δ-5-avenasterol. The major triterpenic alcohol was cycloartenol (226.4-532.1 mg/kg). Hexacosanol (9.71-28.15 mg/kg) was the major aliphatic alcohol. The detected volatile compounds were pentanal, hexanal, nonanal, 2-decenal and hexanol. The statistical analysis showed significant differences between varieties, which are probably due to genetic factors.
URIhttp://hdl.handle.net/10261/122650
DOI10.1016/j.foodchem.2014.10.095
Identificadoresdoi: 10.1016/j.foodchem.2014.10.095
issn: 1873-7072
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