66550

DEVELOPMENT AND APPLICATION OF ACTIVE BIO-PACKAGING INCORPORATED WITH BABASSU OIL AND HIBISCUS FLOWER ON CONSERVATION OF APPLES

Favorite this paper

The interest in preserving, improving quality and facilitating the transport of food and at the same time reducing packaging waste has encouraged the exploration of new materials, such as active packaging produced from renewable sources. Since babassu (Orbignya phalerata) oil (BO) is rich in lauric acid, a component with antifungal and bactericidal properties, and the roselle flower (Hibiscus sabdariffa), a medicinal plant with antibacterial and antioxidant characteristics, these resources become potential active compounds (AC). The aim of this work was to develop films and coatings incorporated with BO or Hibiscus and to evaluate the effects of the application of these coatings on apples. The filmogenic solutions were prepared by the casting method, using cassava starch plasticized with glycerol as polymer matrix and BO or Hibiscus as AC. Films were characterized in terms of their thickness and optical properties, whereas the effect on the changes of weight loss, color, total soluble solids, pH, and titratable acidity on coated apples during 15 days at 25°C were evaluated. All films presented homogeneous surface with no bubbles and good handling characteristics. The addition of BO promoted an increase in the luminosity of the films, while for the Hibiscus an opposite effect was observed. The chromatic parameters and visual analysis revealed the tendency of the films to reflect the characteristic color of the AC used in the formulations. The coated fruits lost mass at a lower rate than the control fruits. The use of coatings promoted better preservation of texture and color characteristics of apples and slowed fruit ripening. These facts proved that the coatings added with active compounds (BO or Hibiscus) were crucial for the maintenance of visual quality and extending the shelf life of apples, being very promising materials in the production of active packages.