TY - JOUR
T1 - Physico-chemical and antiadhesive properties of poly(Lactic acid)/grapevine cane extract films against food pathogenic microorganisms
AU - Díaz-Galindo, Edaena Pamela
AU - Nesic, Aleksandra
AU - Cabrera-Barjas, Gustavo
AU - Dublan-García, Octavio
AU - Ventura-Aguilar, Rosa Isela
AU - Vázquez-Armenta, Francisco Javier
AU - de Oca, Saúl Aguilar Montes
AU - Mardones, Claudia
AU - Ayala-Zavala, Jesús Fernando
N1 - Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2020/12
Y1 - 2020/12
N2 - The aim of this study was evaluation of the physico-chemical properties and adhesion of microorganisms on poly(lactic acid) (PLA)-based films loaded with grapevine cane extract (5–15 wt%). The films were processed in a compression molding machine and characterized by mechanical, thermal, water vapor barrier and microbiological tests. The best physical-chemical properties for PLA film containing 10 wt% of extract were obtained. The addition of 10 wt% of extract into PLA films led to decrease of tensile strength for 52% and increase in elongation at break for 30%. The water vapor barrier of this film formulation was enhanced for 55%. All films showed thermal stability up to 300◦C. The low release of the active compounds from films negatively influenced their antimicrobial and antifungal activity. Botrytis cinerea growth inhibition onto PLA containing extracts (PLA-E) films was in the range between 15 and 35%. On the other side, PLA/extract films exhibited the antiadhesive properties against Pseudomonas aeruginosa, Pectobacterium carotovorum, Saccharomyces pastorianus, and Listeria monocytogenes, which could imply their potential to be used as sustainable food packaging materials for preventing microbial contamination of food.
AB - The aim of this study was evaluation of the physico-chemical properties and adhesion of microorganisms on poly(lactic acid) (PLA)-based films loaded with grapevine cane extract (5–15 wt%). The films were processed in a compression molding machine and characterized by mechanical, thermal, water vapor barrier and microbiological tests. The best physical-chemical properties for PLA film containing 10 wt% of extract were obtained. The addition of 10 wt% of extract into PLA films led to decrease of tensile strength for 52% and increase in elongation at break for 30%. The water vapor barrier of this film formulation was enhanced for 55%. All films showed thermal stability up to 300◦C. The low release of the active compounds from films negatively influenced their antimicrobial and antifungal activity. Botrytis cinerea growth inhibition onto PLA containing extracts (PLA-E) films was in the range between 15 and 35%. On the other side, PLA/extract films exhibited the antiadhesive properties against Pseudomonas aeruginosa, Pectobacterium carotovorum, Saccharomyces pastorianus, and Listeria monocytogenes, which could imply their potential to be used as sustainable food packaging materials for preventing microbial contamination of food.
KW - Food packaging
KW - Polylactic acid (PLA) film
KW - Stilbenes
KW - Surface microbial adhesion
UR - http://www.scopus.com/inward/record.url?scp=85097656479&partnerID=8YFLogxK
U2 - 10.3390/polym12122967
DO - 10.3390/polym12122967
M3 - Artículo
AN - SCOPUS:85097656479
SN - 2073-4360
VL - 12
SP - 1
EP - 15
JO - Polymers
JF - Polymers
IS - 12
M1 - 2967
ER -