Quantification of Sterol Contents in Almond (PrunusamygdalusL.) Oils

Document Type: Research Article

Authors

1 Max Rubner-Institut (MRI) Federal Research Institute for Nutrition and Food, Department for Safety and Quality for Cereals Schützenberg 12 D-32756 Detmold, GERMANY

2 Department of Food Engineering, Faculty of Agricultural, Selcuk University, 42031 Konya, TURKEY

Abstract

In this study, the sterol contents of almond kernel oils collected from naturally growing almond trees in Mersin province were determined. Generally, the sterol contents of almond oil samples varied depending on almond types. The major sterols in almond oils wereß-sitosterol,
5-avenasterol and campesterol, followed by 5,24-stigmastadienol, stigmasterol, sitostanol, and cholesterol. While β-sitosterol contents of almond oils varied between 1986 mg/kg (T26) and 3908
mg/kg (T16), 5-avenasterol contents of almond oils samples were in the range between 215.9 mg/kg (T31) and 581.7 mg/kg (T16). In addition, campesterol contents of oils were found from 75.8 mg/kg (T31) to 172.3 mg/kg (T16). Interestingly, all sterol contents (except cholesterol, brassicasterol
and 7-campesterol) of T16 almond oil were found higher than those of the other almond types.
The current study showed that almond kernels of the investigated almond types from Turkey are potential sources of valuable oil which might be used as edible oil or industrial applications.

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Main Subjects


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