Factors affecting vitamin degradation in oil-in-water nano-emulsions

Autor: Jin-Mi Jung, Michel Ollivon, Perla Relkin
Rok vydání: 2009
Předmět:
Zdroj: Journal of Thermal Analysis and Calorimetry. 98:13-18
ISSN: 1572-8943
1388-6150
DOI: 10.1007/s10973-009-0340-9
Popis: Fat fractions composed by different proportions of low (LMT) or high (HMT) melting temperature triacylglycerols were used, alone or in mixture with α-tocopherol for the preparation of oil-in-water protein stabilised nano-emulsions. Addition of α-tocopherol to the LMT or HMT fat fractions was accompanied by different changes in the emulsion characteristics such as fat droplet size distributions, under-cooling and polymorphic transitions, in parallel with different extent of α-tocopherol degradation reactions. Our results showed higher immobilisation pattern of α-tocopherol molecules and higher protection against degradation when incorporated in higher size fat droplets, which presented 2Lα → 2Lβ′ polymorphic transitions under cooling and re-heating cycles.
Databáze: OpenAIRE