DES-ultrasonication processing for cellulose nanofiber and its compounding in biodegradable starch based packaging films through extrusion

Kesari, Aman Kumar; Mandava, Srimukhi; Munagala, Chandan Kumar; Nagar, Harsha; Aniya, Vineet

doi:10.1016/j.indcrop.2022.115566

Cited by 12 publications

(2 citation statements)

References 46 publications

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“…The commercial starch/polybutylene adipate terephthalate exhibited a tensile strength of 5.6 MPa and high flexibility with elongation at a break of up to 137%. On the other hand, the commercial co-polyester/polylactic acid showed low flexibility with elongation at a break of 9.7% but exhibited excellent stiffness with high Young's modulus and tensile strength, as shown in Table 4 [41,42]. Unfortunately, starch films and starch/1% MCC exhibited low mechanical strength, while the starch film with 5% MCC displayed brittle behavior, resulting in mechanical properties inferior to those of both commercial biodegradable packaging films.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Study of Biocomposite Films Based on Cassava Starch and Microcrystalline Cellulose Derived from Cassava Pulp for Potential Medical Packaging Applications

Jeencham,

Chiaoketwit,

Numpaisal

et al. 2024

Applied Sciences

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This study aimed to develop biocomposite films based on cassava starch and microcrystalline cellulose (MCC) derived from cassava pulp for potential medical packaging applications. MCC was extracted from cassava pulp, and its structure and chemical composition, crystallinity, and thermal properties were characterized. The MCC showed a yield of 14.92% and crystallinity of 46.91%. Different MCC contents (1%, 3%, and 5% w/w of starch) were incorporated into cassava starch films. The effects of MCC contents on film properties, including morphology, thickness, mechanical strength, chemical interactions, moisture content, surface wettability, and water activity index, were studied. The effects of UV-C sterilization on the disinfection of starch/MCC on film properties were determined. Results showed that all starch/MCC films exhibited good transparency and thickness ranging from 127 to 144 µm. As MCC content increased from 1 to 5%, Young’s modulus and tensile strength of the films improved significantly from 112.12 to 488.89 MPa and 3.21 to 11.18 MPa, respectively, while elongation at break decreased from 44.74 to 4.15%. Incorporating MCC also reduced film surface wettability, with the water contact angle increasing from 69.17° to 102.82°. The starch/3%MCC holds promise as a biocomposite film for medical packaging applications, offering advantages in terms of good transparency, mechanical properties, and surface hydrophobicity. Furthermore, the absence of microbial growth in the sterilized gauze pad with sealing in the sterilized starch/3%MCC film confirms that the UV-C sterilization, 30 min for each side at 254 nm effectively eliminated any microorganisms present on the starch/3%MCC film without damaging the film properties. This finding highlights a reliable approach to ensuring the sterility of starch/MCC films for medical packaging applications.

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Section: Mechanical Propertiesmentioning

confidence: 99%

Study of Biocomposite Films Based on Cassava Starch and Microcrystalline Cellulose Derived from Cassava Pulp for Potential Medical Packaging Applications

Jeencham,

Chiaoketwit,

Numpaisal

et al. 2024

Applied Sciences

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“…202,203 The use of renewable polymers as packaging materials is increasingly current, with starch gradually becoming the most relevant alternative for the development of packaging. [204][205][206][207][208][209][210][211][212][213] A major advantage is that starch-based films can be produced by thermal processing and casting, with casting being the most used method in the laboratory. 214 The main disadvantages of starch-based films are related to low mechanical strength, sensitivity and solubility in water and limited water vapor barrier properties.…”

Section: Starch: Generalities and Gelatinizationmentioning

confidence: 99%

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Silva

Rios

Santana

2023

Polymers from Renewable Resources

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The limited degradation of synthetic polymers used in food packaging when discarded in the environment is a major concern for society. Therefore, industry and academia have sought to develop biodegradable and eco-friendly materials for single-use in packaging. An interesting alternative for the food industry is biodegradable polymeric films, which is why different biopolymers have been used in the production of sustainable packaging. It is worth mentioning that the use of biodegradable polymers is one of the most successful innovations in the industry to address issues related to the environment. Among the available raw materials, starch extracted from different renewable sources is very promising for this purpose, due to its abundance, low-cost compared to other polymers and ability to produce non-toxic films. However, when used alone, pure starch has many limitations, which can be overcome by developing a mixture with other polymers (polymer blends), preferably from renewable and biodegradable sources, such as poly(lactic acid) (PLA). In this context, the absence of literature reviews evidencing the results of the application of films in foods led us to write this article, given the importance of polymer blends produced with different types of starch (cassava, corn, pea, potato, rice and wheat) and the PLA matrix. According to the results, it is clear that polymer blends based on PLA/Starch for food packaging are very promising, already being part of the industries solutions, aiming to minimize the large volume of plastic waste of petrochemical origin discarded in nature. Obviously, as with any technology, more research is needed to further improve the performance of the films, and while much research has made great strides, there are still limitations that prevent the commercialization of these materials.

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Facile production of cellulose nanofibers from raw elephant grass by an aluminum chloride-enhanced acidic deep eutectic solvent

Yuan

Huang

Jiang

et al. 2023

International Journal of Biological Macromolecules

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DES-ultrasonication processing for cellulose nanofiber and its compounding in biodegradable starch based packaging films through extrusion

Cited by 12 publications

References 46 publications

Study of Biocomposite Films Based on Cassava Starch and Microcrystalline Cellulose Derived from Cassava Pulp for Potential Medical Packaging Applications

Study of Biocomposite Films Based on Cassava Starch and Microcrystalline Cellulose Derived from Cassava Pulp for Potential Medical Packaging Applications

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Facile production of cellulose nanofibers from raw elephant grass by an aluminum chloride-enhanced acidic deep eutectic solvent

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