Biodegradation of Films Based on Natural and Synthetic Biopolymers Using an Aquatic System from Active Sludge

Bonilla, Jeannine; Paiano, Renan Braga; Lourenço, Rodrigo Vinícius; Bittante, Ana Mônica Quinta Barbosa; Sobral, Paulo José do Amaral

doi:10.1007/s10924-020-01962-x

Cited by 13 publications

(7 citation statements)

References 48 publications

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“…Furthermore, the biodegradability of PVA depends on hydrolysis and its molecular weight [ 58 ]. Bonilla et al [ 59 ] studied the biodegradability of natural gelatin (GEL) and sodium caseinate (SCas) and synthetic poly(vinyl alcohol) (PVA) and poly(lactic acid) (PLA) biopolymers films using an aquatic system from active sludge. Biodegradation was determined by measuring the dissolved oxygen over 28 days with closed respirometers.…”

Section: Resultsmentioning

confidence: 99%

PVA-Based Films with Strontium Titanate Nanoparticles Dedicated to Wound Dressing Application

Kaczmarek-Szczepańska,

Zasada,

Wekwejt

et al. 2024

Polymers

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Bioactive materials may be applied in tissue regeneration, and an example of such materials are wound dressings, which are used to accelerate skin healing, especially after trauma. Here, we proposed a novel dressing enriched by a bioactive component. The aim of our study was to prepare and characterize poly(vinyl alcohol) films modified with strontium titanate nanoparticles. The physicochemical properties of films were studied, such as surface free energy and surface roughness, as well as the mechanical properties of materials. Moreover, different biological studies were carried out, like in vitro hemo- and cyto-compatibility, biocidal activity, and anti-biofilm formation. Also, the degradation of the materials’ utilization possibilities and enzymatic activity in compost were checked. The decrease of surface free energy, increase of roughness, and improvement of mechanical strength were found after the addition of nanoparticles. All developed films were cyto-compatible, and did not induce a hemolytic effect on the human erythrocytes. The PVA films containing the highest concentration of STO (20%) reduced the proliferation of Eschericha coli, Pseudomonas aeruginosa, and Staphylococcus aureus significantly. Also, all films were characterized by surface anti-biofilm activity, as they significantly lowered the bacterial biofilm abundance and its dehydrogenase activity. The films were degraded by the compost microorganism. However, PVA with the addition of 20%STO was more difficult to degrade. Based on our results, for wound dressing application, we suggest using bioactive films based on PVA + 20%STO, as they were characterized by high antibacterial properties, favorable physicochemical characteristics, and good biocompatibility with human cells.

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Section: Resultsmentioning

confidence: 99%

PVA-Based Films with Strontium Titanate Nanoparticles Dedicated to Wound Dressing Application

Kaczmarek-Szczepańska,

Zasada,

Wekwejt

et al. 2024

Polymers

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“…Thanks to these features, they are used in packaging and also in active packaging with incorporated bioactive and nutraceutical compounds [ 13 , 149 ]. The film-forming capacity and biodegradability of milk proteins make them a promising alternative to conventional non-biodegradable packaging [ 150 ]. Composite films containing milk protein-based biopolymers degrade in a very short time, with 100% degradation on day one without harmful residues.…”

Section: Biodegradable Food Packagingmentioning

confidence: 99%

Advancements in Biodegradable Active Films for Food Packaging: Effects of Nano/Microcapsule Incorporation

Baghi

Gharsallaoui

Dumas

et al. 2022

Foods

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Food packaging plays a fundamental role in the modern food industry as a main process to preserve the quality of food products from manufacture to consumption. New food packaging technologies are being developed that are formulated with natural compounds by substituting synthetic/chemical antimicrobial and antioxidant agents to fulfill consumers’ expectations for healthy food. The strategy of incorporating natural antimicrobial compounds into food packaging structures is a recent and promising technology to reach this goal. Concepts such as “biodegradable packaging”, “active packaging”, and “bioactive packaging” currently guide the research and development of food packaging. However, the use of natural compounds faces some challenges, including weak stability and sensitivity to processing and storage conditions. The nano/microencapsulation of these bioactive compounds enhances their stability and controls their release. In addition, biodegradable packaging materials are gaining great attention in the face of ever-growing environmental concerns about plastic pollution. They are a sustainable, environmentally friendly, and cost-effective alternative to conventional plastic packaging materials. Ultimately, a combined formulation of nano/microencapsulated antimicrobial and antioxidant natural molecules, incorporated into a biodegradable food packaging system, offers many benefits by preventing food spoilage, extending the shelf life of food, reducing plastic and food waste, and preserving the freshness and quality of food. The main objective of this review is to illustrate the latest advances in the principal biodegradable materials used in the development of active antimicrobial and antioxidant packaging systems, as well as the most common nano/microencapsulated active natural agents incorporated into these food-packaging materials.

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“…Similar biodegradation behaviors were observed with active lms incorporated with plant hydroethanolic extracts, which are rich in phenolics compounds having antioxidant and antimicrobial activities, carried out by compostability 129 or respirometry. 130,131 Conclusions and future directions Due to the importance of active lms for food preservation, scientic research has extensively been developed in this domain during the last decade. The studies have been focused mainly on the incorporation of natural non-polar bioactive compounds, namely essential oils extracted from plants, generally with lipophilic characters, causing various difficulties to incorporate them into hydrophilic biomaterial matrices, principally because its solvent is water.…”

Section: Chemical Stability and Biodegradability Of Active Lms Loaded With Nanoemulsionsmentioning

confidence: 99%

Advances in biopolymeric active films incorporated with emulsified lipophilic compounds: a review

et al. 2021

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Biodegradation of Films Based on Natural and Synthetic Biopolymers Using an Aquatic System from Active Sludge

Cited by 13 publications

References 48 publications

PVA-Based Films with Strontium Titanate Nanoparticles Dedicated to Wound Dressing Application

PVA-Based Films with Strontium Titanate Nanoparticles Dedicated to Wound Dressing Application

Advancements in Biodegradable Active Films for Food Packaging: Effects of Nano/Microcapsule Incorporation

Advances in biopolymeric active films incorporated with emulsified lipophilic compounds: a review

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