EFFECT OF HIGH FREQUENCY ULTRASOUNDS ON LYCOPENE AND TOTAL PHENOLIC CONCENTRATION, ANTIOXIDANT PROPERTIES AND α-GLUCOSIDASE INHIBITORY ACTIVITY OF TOMATO JUICE
AbstractThe effect of high frequency ultrasound on lycopene and total phenolic concentration, antioxidant properties and α-glucosidase inhibitory activity of tomato juice was investigated. To this purpose, tomato juice was subjected to high frequency ultrasound (378 and 583 kHz) at increasing energy densities (up to 250 MJ/m3). Results relevant to the treatments at high frequency providing an energy density of 250 MJ/m3 were compared with those obtained at 24 kHz delivering the same energy density. Lycopene and total phenolic concentration, as well as the α-glucosidase inhibitory activity of tomato juice, were not affected by ultrasound regardless the frequency and energy density. However, the antioxidant properties were negatively affected by high frequency ultrasound.
Copyright Agreement with Authors
Before publication, after the acceptance of the manuscript, Authors have to sign a Publication Agreement with "Italian Journal of Food Science", granting and assigning to "Italian Journal of Food Science" the perpetual right to distribute the work free of charge by any means and in any parts of the world, including the communication to the public through the journal website.
License for Published Contents