Production of biodegradable starch nanocomposites using cellulose nanocrystals extracted from coconut fibers

Cerqueira, Jamile Costa; Penha, Josenai da Silva; Oliveira, Roseane Santos; Guarieiro, Lílian Lefol Nani; Melo, Pollyana da Silva; Barbosa, Josiane Dantas Viana; Machado, Bruna Aparecida Souza

doi:10.1590/0104-1428.05316

Cited by 22 publications

(22 citation statements)

References 58 publications

(92 reference statements)

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“…Concerning the renewable sources of raw materials, there are several possible lignocellulosic materials for the isolation of whiskers: vegetable sources, such as cotton, coconut fiber, corn cobs, pineapple leaves, manioc residues, palm fiber, residual biomass from palm oil extraction, banana fibers, hemp, wood pulp, old newspaper and recycled newsprint, microcrystalline cellulose (MCC), bacterial cellulose, the product of which is named bacterial nanocellulose, microbial cellulose or biocellulose, and animal sources, such as tunicates and marine biomass …”

Section: Physicochemical Characterization Of Cellulose Nanocrystalsmentioning

confidence: 99%

“…The light birefringence (Δ n ) is considered a confirmatory parameter of the presence of nanocrystals and enables assessment of the efficiency of the hydrolysis process . The reported optical anisotropy is important to determine adequate dispersibility and stability of crystals in suspension—a property required to achieve good results when nanocrystals are incorporated in a polymeric matrix for mechanical reinforcement, resulting from the ability of CNCs to self‐assemble . This phenomenon is based on the balance between the translational and orientational components of the entropy.…”

Section: Physicochemical Characterization Of Cellulose Nanocrystalsmentioning

confidence: 99%

“…Furthermore, CNCs have been used for the improvement of mechanical and barrier properties of biocomposites (called green composites since they are produced from the junction of natural fibers and biodegradable polymers), and polymer matrices for nanometric reinforcement in flexible films for the packaging and paper industries, barrier films, and antimicrobial films . Azeredo et al, for example, found an increase in the shelf life of acerolas (also known as West Indian cherry) coated with a film of fruit pulp, alginate and linter, and coconut nanocellulose.…”

Section: Technological Potential Of Cncs: the Development Of A New Gementioning

confidence: 99%

“…In addition, CNCs are capable to self‐organize and produce materials with improved appearance, thermal properties, and barrier performances . These properties can be exploited in numerous fields, including the pharmaceutical industry and regenerative medicine, with the development of new formulations and drug delivery systems, such as emulsions, liposomes, aerogels and hydrogels, DNA hybrid nanomaterials, polymeric films, adhesives and coatings, packaging applications, tissue engineering, wound healing, cardiovascular applications, diagnostics using bioimaging, and targeting and sensing uses …”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Cellulose Nanocrystals as a Sustainable Raw Material: Cytotoxicity and Applications on Healthcare Technology

Pelegrini

Ré

Oliveira

et al. 2019

Macro Materials & Eng

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Cellulose nanocrystals (CNCs) are an environmentally friendly natural material, consisting of rod‐like crystalline nanoparticles, called whiskers, or nanocrystalline cellulose. The derivation of different natural sources, aligned to their biocompatibility, biodegradability, and versatility, make them a class of fascinating materials with widespread industrial use. In addition, the cellulose species possess intriguing physicochemical and mechanical properties. This paper provides an overview of recent progress in the area of cellulosic nanocomposites, along with details of their structure and liquid crystalline behavior as nematic and cholesteric lyotropic materials. Guidance is subsequently provided for the physicochemical analysis of these materials, including X‐ray diffraction, transmission electron microscopy, optical evaluation, thermogravimetric analysis, and differential scanning calorimetry. Additionally, the functional chemical and physical properties of CNCs are correlated to the resulting nanotoxicity in in vitro and in vivo assays. This review points to relevant concerns, such as sources for the synthesis of CNCs, the nanomaterial size, and the surface chemistry, that must be overcome in order to attain safe use of CNC‐based nanomaterials. The challenging perspectives on the ongoing research are presented in order to explore the technological and industrial perspectives on the use of CNC for the generation of cost‐effective advanced nanomaterials based on cellulosic fibers.

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Section: Physicochemical Characterization Of Cellulose Nanocrystalsmentioning

confidence: 99%

Section: Physicochemical Characterization Of Cellulose Nanocrystalsmentioning

confidence: 99%

Section: Technological Potential Of Cncs: the Development Of A New Gementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cellulose Nanocrystals as a Sustainable Raw Material: Cytotoxicity and Applications on Healthcare Technology

Pelegrini

Ré

Oliveira

et al. 2019

Macro Materials & Eng

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“…Starch consists of two polysaccharides, amylose, and amylopectin, which are semicrystalline, oval, truncated, and rounded granules, varying according to the amylaceous source . Thus, there are several commercial sources of starch; however, starch from cassava has been widely studied by Brazilian researchers for the production of flexible films, mainly due to the high cassava production in the country, as well as the material's availability, good ability to form films and low cost . Studies have shown that films obtained from cassava starch have good homogeneity, flexibility, transparency, and rapid biodegradability .…”

Section: Introductionmentioning

confidence: 99%

Development and application starch films: PBAT with additives for evaluating the shelf life of Tommy Atkins mango in the fresh‐cut state

Leal

Rosa

Penha

et al. 2019

J of Applied Polymer Sci

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In this study, formulations of cassava starch and poly(butylene adipate-co-terephthalate) flexible films were developed, with glycerol, coconut nanocellulose, annatto, and citric acid in different concentrations, as well as the effectiveness of the selected materials in fresh-cut mangoes storage was evaluated. The tensile strength of the different formulations varied from 1.90 (E4) to 6.65 MPa (E3c), and the strain varied from 206.31 (E1c) to 278.41% (E8); this variation was dependent on the percentage of the polymer matrix incorporated. The a w values of the formulations ranged from 0.396 (E2) to 0.569 (E3c). The Formulations E4 and E7 (with additives) presented good properties and were selected to condition mangoes. The micrographs of these films showed regions of micropores that can facilitate the diffusion of water from the packaged product to the surface, allowing decreases in moisture and a w , which is associated with higher color maintenance during fruit storage. E7 presented better barrier properties than E4 (lower values of WVP and water solubility) which may have influenced in a positive way to maintain the stability of the package in the studied period. E7 can be considered as a viable alternative for minimally processed mango storage.

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Development and application of fruit and vegetable based green films with natural bio‐actives in meat and dairy products: a review

Thakur

Raposo

2023

J Sci Food Agric

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In recent years, foodborne outbreaks and food plastic waste accumulation in the environment have impelled a hunt for new, sustainable, novel and innovatory food packaging interventions to face microbial contamination, food quality and safety. Pollution caused from wastes generated by agricultural activities is one of chief rising concerns of the environmentalists across the globe. A solution to this problem is effective and economic valorization of residues from agriculture sector. It would ensure that the by‐products/residues from one activity act as ingredients/raw materials for another industry. An example is fruit and vegetable waste based green films for food packaging. Edible packaging is a well‐researched area of science where numerous biomaterials have been already explored. Along with dynamic barrier properties, these biofilms often exhibit antioxidant and antimicrobial properties as function of the bioactive additives (e.g. essential oils) often incorporated in them. Additionally, these films are made competent by use of recent technologies (e.g. encapsulation, nano‐emulsions, radio‐sensors) to ensure high end performance and meet the principles of sustainability. Livestock products such as meat, poultry and dairy products are highly perishable and depend largely upon the mercy of packaging materials to enhance their shelf life. In this review, all the above‐mentioned aspects are thoroughly covered with a view to project fruit and vegetable based green films (FVBGFs) as a potential and viable packaging material for livestock products, along with a discussion on role of bio‐additives, technological interventions, properties and potential applications of FVBGFs in livestock products. © 2023 Society of Chemical Industry.

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Production of biodegradable starch nanocomposites using cellulose nanocrystals extracted from coconut fibers

Cited by 22 publications

References 58 publications

Cellulose Nanocrystals as a Sustainable Raw Material: Cytotoxicity and Applications on Healthcare Technology

Cellulose Nanocrystals as a Sustainable Raw Material: Cytotoxicity and Applications on Healthcare Technology

Development and application starch films: PBAT with additives for evaluating the shelf life of Tommy Atkins mango in the fresh‐cut state

Development and application of fruit and vegetable based green films with natural bio‐actives in meat and dairy products: a review

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