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vol. 8, nr. 3 (2006)
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Content of sterols in celeriac
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Ewa Jabłońska-Ryś, Marta Zalewska-Korona
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Department of Fruit and Vegetable Processing, Agricultural University, ul. Doświadczalna 50, 20-950 Lublin |
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vol. 8 (2006), nr. 3,
pp. 603-609
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abstract:
Seven species of celeriac (‘Jabłkowy’, ‘Odrzański’, ‘Makar’, ‘Gol’, ‘Luna’, ‘Mentor’ and ‘Cisko’) were analysed in terms of their content of sterols, using GC/MS. Campesterol, stigmasterol and β-sitosterol were identified among this group of compounds. Statistical analysis showed that the amount of these compounds varies markedly depending on the celeriac variety. The largest amount of total sterols was found in the ‘Jabłkowy’ variety (198.30 mg kg-1 of fresh material) and the ‘Gol’ variety (190.43 mg kg-1 of fresh material). The content of stigmasterol was measured to be 99.68 mg kg-1 of fresh material in ‘Jabłkowy’ and 103.80 mg kg-1 of fresh material in ‘Gol’. The amount of β-sitosterol in these varieties was 79.07 mg kg-1 and 65.81 mg kg-1 of fresh material, respectively. The content of campesterol, on the other hand, was measured to be 19.55 and 20.83 mg kg-1 of fresh material, respectively. Plant oils which contain from 100 to 500 mg of sterols per 100 g are considered to be the best source of those compounds. ‘Jabłkowy’ and ‘Gol’ celeriac varieties contain much less sterols (approximately 20 mg per 100 g of fresh material) than plant oils. However, they are considered to be fairly good sources of sterols because of higher rate of consumption than oils.
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keywords:
celeriac, species, campesterol, stigmasterol, β-sitosterol , GC/MS
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original in:
Polish
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