americana (avocado) fruit is known to be a rich source
of proteins and minerals, as well as vitamins. Although many biological
activities have been reported for avocado fruit, far less attention
has been paid to the biological properties of its lipid-soluble
bioactive substances. The aim of this study was to evaluate the
antioxidant and antihemolytic activity of lipid-soluble bioactive
compounds of avocado fruit. Materials and methods.
Antioxidant and antihemolytic activity of lipid-soluble bioactive
compounds of avocado fruit was assessed by employing different methods.
Also, the ability of avocado fruit to protect fluorescein against
oxidant-induced bleaching was evaluated. Results and discussion.
The tested sample showed good antioxidant and antihemolytic activities. There
was no significant difference between the reducing power of lipid-soluble bioactive
substances in avocado fruits and ascorbic acid (p < 0.05).
The tested sample showed weak ferrous ion-chelating activity.
The sample exhibited moderate hydrogen peroxide scavenging activity, but
exhibited good antioxidant activity. Avocado fruit showed very good activity
against 2,2′-azobis(2-amidinopropane) dihydrochloride- and hydrogen
peroxide-induced hemolysis in erythrocytes. Furthermore, it showed good
protective effects against peroxyl radical-induced bleaching in fluorescein.
Conclusion. Lipid-soluble bioactive substances of avocado fruit
showed good activity in all of the studied models.