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  • Title: Effect of oil marinades with garlic, onion, and lemon juice on the formation of heterocyclic aromatic amines in fried beef patties.
    Author: Gibis M.
    Journal: J Agric Food Chem; 2007 Dec 12; 55(25):10240-7. PubMed ID: 17988088.
    Abstract:
    Effects of the application of oil marinades with garlic, onion, and lemon juice on the formation of heterocyclic aromatic amines (HAAs) in fried beef patties were investigated. Two different statistical design models were used. In the screening experiment, a significant inhibition of formation of MeIQx was determined only by addition of garlic (p < 0.05). When the amount of garlic was changed from 2 to 20 g/100 g of marinade, the estimated MeIQx content in patties was reduced about 70%. MeIQx (0.38-1.22 ng/g), 4,8-DiMeIQx (n.d.-0.45 ng/g), PhIP (n.d.-0.09 ng/g), norharman (0.76-13.5 ng/g), and harman (2.9-21.5 ng/g) were found in fried patties. The results of two-level and three-level fractional factorial design experiments confirmed the first investigation. They showed a stronger reduction in MeIQx in patties with the addition of increasing amounts of garlic (p < 0.01) and onion (p < 0.05) in marinades. A higher content of lemon juice in marinades led to only a marginal reduction in MeIQx (p > 0.05). The optimum amounts of onion, garlic, and lemon juice that achieved a maximum reduction of HAAs were calculated as 31.2%, 28.6%, and 14.6% in marinade.
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