Lipid oxidation in food is as sodated with the development of rancidity and oxidative deterioration. Fish. on high content of polyunsaturated fatty acids(PUFA) is highly to lipid oxidation during manipulation, processing, and cooking. As a consequence of oxidative spoilage. lipid hydroperoxides are formed, which, in turn, are unstable and decompose to aldehydes, ketones, alcohols, acids or hydrocarbons(St. Angelo, 1996). These so-called secondary oxidation products can change food quality namely, colour, texture, flavour and odour(Fernandez. Pérez- Alvarez. & Fernandez-Lopez. 1997). One of the most important products of oxidation is malondialdehyde(MDA). which is thought to be a carcinogenic initiator and mutagen. MDA has often been used as marker of oxidative damage in biological samples(Kinter. 1995) and foods(St. Angelo. 1996). The most widely used method for determination of MDA is the spectrophotometric determination of the pink fluorescent MDA-thiobarbituric acid(MDA-TBA) com- plex produced after reaction with 2-thiobarbituric acid(TBA) at low pH and high temperature(Bergamo. Fedele, Balestrieri. Abres- cia, & Ferrara, 1998). This simple technique is used in fish analysis,
Lipid oxidation in food is as sodated with the development of rancidity and oxidative deterioration. Fish. on high content of polyunsaturated fatty acids(PUFA) is highly to lipid oxidation during manipulation, processing, and cooking. As a consequence of oxidative spoilage. lipid hydroperoxides are formed, which, in turn, are unstable and decompose to aldehydes, ketones, alcohols, acids or hydrocarbons(St. Angelo, 1996). These so-called secondary oxidation products can change food quality namely, colour, texture, flavour and odour(Fernandez. Pérez- Alvarez. & Fernandez-Lopez. 1997). One of the most important products of oxidation is malondialdehyde(MDA). which is thought to be a carcinogenic initiator and mutagen. MDA has often been used as marker of oxidative damage in biological samples(Kinter. 1995) and foods(St. Angelo. 1996). The most widely used method for determination of MDA is the spectrophotometric determination of the pink fluorescent MDA-thiobarbituric acid(MDA-TBA) com- plex produced after reaction with 2-thiobarbituric acid(TBA) at low pH and high temperature(Bergamo. Fedele, Balestrieri. Abres- cia, & Ferrara, 1998). This simple technique is used in fish analysis,
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