Active biodegradable films based on thermoplastic starch and poly (e-caprolactone): technological application of antioxidant extracts from rice husk

Abstract

Modelado de la biodegradación en biorreactores de lodos de hidrocarburos totales del petróleo intemperizados en suelos y sedimentos (Biodegradation modeling of sludge bioreactors of total petroleum hydrocarbons weathering in soil and sediments)

Thermoplastic Starch-Based Blends with Improved Thermal and Thermomechanical Properties

“…These types of blends have been studied for the improvement of their mechanical and thermal properties [ 13 ]. Cassava starch and PCL films, in the presence of an antioxidant, showed that the thermal properties of TPS were affected, which was interpreted as partial compatibility between polymers; however, tensile stress was reduced by 6% with the incorporation of PCL [ 25 ]. In another work, with the cassava starch–PCL blend, it was observed that the incorporation of PCL generated immiscibility, forming systems with starch as a dispersed phase, observed by electron microscopy.…”

Development of thermoplastic starch/poly(butylene adipate‐co‐terephthalate) biobased active packaging films and potential usage in the food industry

“…Studies show that rice husk has a high antioxidant activity despite its low phenolic component content, which shows that the phenolic groups found are highly reactive. 11,34,35 Besides that, knowledge when it is incorporated into a polymer matrix, extrusion conditions with high temperatures negatively affect the rice husk and lose its antioxidant properties at a high rate. During extrusion, issues pertaining to combustion, adhesion, and homogeneous distribution have been observed across all concentrations.…”

“…To improve the antioxidant properties of biobased films, herbal extracts such as red grapes, grape seeds, thyme, green tea, rosemary, various essential and aromatic oils, as well as industrial fruit and vegetable processing wastes can be potential sources due to their high content of polyphenols. 2,11 This study focuses on the optimization of biobased active packaging film production using thermoplastic starch (TPS) and poly(butylene adipate-co-terephthalate) (PBAT). Antioxidant grape seed oil, alpha-tocopherol, and rice husk were used to provide active properties to the resulting films.…”

“…Active packaging is a modern approach to using food packaging films containing compounds such as antioxidants and antimicrobial substances to extend the shelf life of foods and preserve their quality throughout their shelf life. To improve the antioxidant properties of bio‐based films, herbal extracts such as red grapes, grape seeds, thyme, green tea, rosemary, various essential and aromatic oils, as well as industrial fruit and vegetable processing wastes can be potential sources due to their high content of polyphenols 2,11 …”

Physicochemical properties of biodegradable films of spine yam (Dioscorea rotundata), hydroxypropylmethylcellulose and clove oil (Syzygium aromaticum)

“…Essential oils are natural, volatile, complex compounds characterized, strong odour and are formed by aromatic plants as secondary metabolites, they are used in the preservation of foods and as an anti-inflammatory, antimicrobial, analgesic, sedative, spasmolytic and locally anaesthetic remedies. These oils have antioxidant and antifungal activity due to their phenol and terpenoid content, and this makes them potential additives in the production of food preservation packaging (Arezoo et al, 2019;Acosta et al, 2016;Peláez and Rodríguez, 2016;Valderrama, 2018;Mehdizadeh et al, 2020;Jahani et al, 2020;Piñeros-Guerrero et al, 2020). Jamróz et al (2018) used lavender essential oil in polymeric films composed of starch, furcellaria and gelatin in concentrations of 2%, 4% and 6%.…”