Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Performance of Gelatin Films Reinforced with Cloisite Na+ and Black Pepper Essential Oil Loaded Nanoemulsion

Version 1 : Received: 31 August 2021 / Approved: 2 September 2021 / Online: 2 September 2021 (12:48:03 CEST)

How to cite: Saranti, T.; Melo, P.; Cerqueira, M.; Aouada, F.; Moura, M. Performance of Gelatin Films Reinforced with Cloisite Na+ and Black Pepper Essential Oil Loaded Nanoemulsion . Preprints 2021, 2021090040 (doi: 10.20944/preprints202109.0040.v1). Saranti, T.; Melo, P.; Cerqueira, M.; Aouada, F.; Moura, M. Performance of Gelatin Films Reinforced with Cloisite Na+ and Black Pepper Essential Oil Loaded Nanoemulsion . Preprints 2021, 2021090040 (doi: 10.20944/preprints202109.0040.v1).

Abstract

The concern about consuming eco-friendly products has motivated research in the development of new materials. Therefore, films based on natural polymers have been used to replace traditional polymers. This study consists of a production of films based on gelatin reinforced with black pepper essential oil-loaded nanoemulsions and Cloisite Na+. The films were characterized by water vapor permeability, mechanical and thermal properties, surface contact angle, X-ray diffraction and scanning electron microscopy. It was observed that the films containing the nanoemulsion have higher permeability values and an increase in their mechanical resistance. The addition of nanoclay contributed to an increase in the surface hydrophobicity of the film and an increase in the tensile strength at break by about 150%. The addition of essential oil nanoemulsions led to an increase in thermal stability. The presence of clay dispersion contributed to the formation of a surface that was slightly rougher and grainier. The addition of the black pepper essential oil nanoemulsion resulted in an increase in porosity of the gelatin matrix. Through X-ray diffraction analysis, it was possible to conclude that both the polymeric gelatin matrix and the essential oils nanoemulsion are intercalated with the clay dispersion.

Keywords

Nanocomposite Films; Mechanical Properties; Water Vapor Permeability; Food Packaging

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