Open AccessEvaluation of the physicochemical and antibacterial properties of films based on biopolymers incorporating Zingiber officinale extract
Author(s) -
Gabriel Augusto Rodrigues,
Wanderson de Oliveira dos Santos,
Geoffroy Roger Pointer Malpass,
Mônica Hitomi Okura,
Rafaela C. Sanfelice,
Ana Cláudia Granato
Publication year - 2020
Publication title -
research, society and development
Language(s) - English
Resource type - Journals
ISSN - 2525-3409
DOI - 10.33448/rsd-v9i8.6199
Subject(s) - chitosan , swelling , solubility , antimicrobial , bacillus cereus , zingiber officinale , chemistry , polysaccharide , materials science , nuclear chemistry , food science , chemical engineering , organic chemistry , traditional medicine , bacteria , composite material , medicine , biology , genetics , engineering
Polysaccharides are a sustainable material for coatings and edible films, as they are nontoxic, widely available in nature and have selective permeability to CO2 and O2. In this work, a laboratory research on a quali/quantitative basis, sodium alginate films were developed, with and without post-film cross-linking, as well as chitosan films incorporating Z. officinale extract as an antimicrobial additive. Several properties such as solubility, moisture content, swelling, morphology and antimicrobial activity of prepared films were compared. The alginate films with crosslinking and incorporation of extract of Z. officinale showed the best characteristics to be used as medicated dressing, since it presents low solubility in water, higher swelling, and lower moisture content. In addition, the alginate film with crosslinking and incorporation of medium concentration of Z. officinale extract showed antimicrobial activity against Bacillus cereus.