Title:	Biodegradable bioactive films based on sorghum starch and glycerol incorporated with jabuticaba (Plinia cauliflora) and jambolan (Syzygium cumini) peels extracts.
Authors:	CORREIA, V. T. da V. SILVA, N. H. A. FRONZA, P. VIEIRA, A. L. S. SILVA, A. L. M. N. da COSTA, I. M. COSTA, T. J. N. SOUZA, B. M. S. de QUEIROZ, V. A. V. SILVA, W. A. da MELO, J. O.-F. FANTE, C. A.
Affiliation:	VINÍCIUS TADEU DA VEIGA CORREIA, EMPRESA DE PESQUISA AGROPECUARIA DE MINAS GERAIS; NAYANA HAYSS ARAÚJO SILVA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; PÃMELLA FRONZA, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO; ANA LUIZA SANTOS VIEIRA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; ANA LUIZA MENDES NUNES DA SILVA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; ISABELLA MACIEL COSTA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; TAYNAN JONATHA NEVES COSTA, UNIVERSIDADE FEDRAL DE MINAS GERAIS; BRUNA MARIA SALOTTI DE SOUZA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; VALERIA APARECIDA VIEIRA QUEIROZ, CNPMS; WASHINGTON AZEVEDO DA SILVA, UNIVERSIDADE FEDERAL DE SAO JOAO DEL-REI; JULIO ONESIO-FERREIRA MELO, UNIVERSIDADE FEDERAL DE SAO JOAO DEL-REI; CAMILA ARGENTA FANTE, UNIVERSIDADE FEDERAL DE MINAS GERAIS.
Date Issued:	2026
Citation:	International Journal of Biological Macromolecules, v. 347, 150744, 2026.
Description:	Growing interest in renewable and biodegradable resources has encouraged industries to reduce reliance on petrochemical-based packaging. As an alternative, films developed from unconventional starch sources and fruit by-products have been explored. This study aimed to produce films from sorghum starch combined with jabuticaba and jambolan extracts from freeze-dried peels and to evaluate their physical, barrier, optical, thermal, mechanical, and biodegradation properties. Films prepared with sorghum starch were supplemented with glycerol and incorporated with jabuticaba (JT) or jambolan (JB) freeze-dried peels extracts. The formulations included control film (without extract) and films with added extract at concentrations of 5% (JT5% or JB5%) and 10% (JT10% or JB10%). Anthocyanin levels above 4.40 and 7.29 mg C3Geq 100 g− 1 were detected in JT5% and JT10%, respectively. The highest luminosity (L* = 88.82) was observed in the control film. Extract-enriched films showed opacity values above 1.7. JT10% exhibited the greatest thickness (0.17 mm), while JB10% had the highest water solubility (22.36%). JT5% displayed the highest water vapor permeability (2.09 g⋅mm/ h⋅m2 ⋅kPa). Extract addition did not influence puncture resistance, however, tensile strength decreased, with JB10% showing the lowest value (1.65 MPa). JT10% demonstrated the greatest flexibility, with 26.86% elongation at break. Scanning electron microscopy revealed no cracks but a more homogeneous surface in the control film. All films exhibited characteristic bands of starch–glycerol thermoplastics and fully degraded within 7 days. Overall, the films developed exhibited a combination of adequate mechanical performance, modified optical, and rapid biodegradation, supporting their potential use as materials for packaging food applications.
Thesagro:	Sorgo Antocianina Amido Jabuticaba Jambolão Embalagem Biodegradação
Keywords:	Biopolímero Glicerol
DOI:	https://doi.org/10.1016/j.ijbiomac.2026.150744
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPMS)