Chemistry Reference
In-Depth Information
portion of -tocopherol into the water phase of the association colloids in bulk
oil (Koga, 1994). Overall, this work suggests that the presence of physical
structure can also impact the activity of free radical scavengers.
10.7 Conclusions
Unfortunately, the number of antioxidants available to food manufacturers is
limited and the approval of new antioxidants is unlikely due to economic
barriers including expensive government approval for new food additives.
Therefore if the food industry is to better control oxidation reactions, existing
antioxidants must be used more efficiently. In order to accomplish this goal, a
better understanding of the mechanisms by which lipids oxidize and antioxidants
inhibit oxidation is needed. More research in lipid oxidation chemistry in
complex food systems will lead to the development of novel antioxidant
technologies that substantially increase the ability of food manufacturers to
inhibit oxidative rancidity. Overcoming this challenge will allow food
manufacturers to produce healthier foods will elevated levels of polyunsaturated
fatty acids that can be delivered to the consumer without risk of quality
deterioration.
10.8 References
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antioxidants to inhibit lipid oxidation in foods'. In, Dissertation, University of
Massachusetts, Amherst.
ALAMED J, CHAIYASIT W, MCCLEMENTS DJ and DECKER EA (2009), `Relationships between
free radical scavenging and antioxidant activity in foods', J Agric Food Chem, 57,
2969±2976.
AMI Â D, LU I B, KOVA EVI G and TRINAJSTI N (2009), `Bond dissociation enthalpies
calculated by the PM3 method confirm activity cliffs in radical scavenging of
flavonoids', Mol Divers, 13, 27±36.
AMORATI R, FERRONI F, LUCARINI M, PEDULLI GF and VALGIMIGLI L (2002), `A quantitative
approach to the recycling of -tocopherol by coantioxidants', J Org Chem, 67,
9295±9303.
ARUOMA OI, HALLIWELL B, AESCHBACH R and LOLIGERS J (1992), `Antioxidant and
prooxidant properties of active rosemary constituents ± carnosol and carnosic
acid', Xenobiotica, 22, 257±268.
BAST A and HAENEN G (1988), `Interplay between lipoic acid and glutathione in the
protection against microsomal lipid peroxidation', Biochim Biophys Acta, 963,
558±561.
BERKOWITZ J, ELLISON GB and GUTMAN D (1994), `Three methods to measure RH bond
energies', J Phys Chem, 98, 2744±2765.
BOHM F, EDGE R, LAND EJ, MCGARVEY DJ and TRUSCOTT TG (1997), `Carotenoids enhance
vitamin E antioxidant efficiency', J Am Chem Soc, 119, 621±622.
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