Journal
FOOD CHEMISTRY
Volume 219, Issue -, Pages 126-130Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.09.130
Keywords
3-Monochloropropane.-1,2-diol; Glycidyl esters; Palm olein oil; Deep-fat frying; Potatoes
Funding
- Putra Grant, Universiti Putra Malaysia [GP-IBT/2013/9419500]
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The effects of frying duration, frying temperature and concentration of sodium chloride on the formation of 3-monochloropropane-1,2-diol (3-MCPD) esters and glycidyl esters (GEs) of refined, bleached and deodorized (RBD) palm olein during deep -fat frying (at 160 degrees C and 180 degrees C) of potato chips (0%, 1%, 3% and 5% NaCI) for 100 min/d for five consecutive days in eight systems were compared in this study. All oil samples collected after each frying cycle were analyzed for 3-MCPD esters, GEs, free fatty acid (FFA)contents, specific extinction at 232 and 268 nm (K-232 and K-268), p-anisidine value (pAV), and fatty acid composition. The 3-MCPD ester trend was decreasing when the frying duration increased, whereas the trend was increasing when frying temperature and concentration of NaCl increased. The GEs trend was increasing when the frying temperature, frying duration and concentration of NaCl increased. All of the oil qualities were within the safety limit. (C) 2016 Elsevier'Ltd. All rights reserved.
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