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Sterols and squalene in apricot (Prunus armeniaca L.) kernel oils: the variety as a key factor
Magdalena Rudzińska1, Paweł Górnaś2, Marianna Raczyk1
1b Faculty of Food Science and Nutrition, Institute of Food Technology of Plant Origin , Poznań University of Life Sciences , Poznań , Poland.
Abstract:
The profile of sterols and squalene content in oils recovered from the kernels of 15 apricot (Prunus armeniaca L.) varieties were investigated. Nine sterols (campesterol, β-sitosterol, Δ5-avenasterol, 24-methylene-cycloartanol, cholesterol, gramisterol, Δ7-stigmasterol, Δ7-avenasterol and citrostadienol) were identified in apricot kernel oils. The β-sitosterol was the predominant sterol in each cultivar and consisted of 76-86% of the total detected sterols. The content of total sterols and squalene were significantly affected by the variety and ranged between 215.7-973.6 and 12.6-43.9 mg/100 g of oil, respectively.
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