Recent advances in nanocellulose-based different biomaterials: types, properties, and emerging applications

Khalid, Muhammad Yasir; Rashid, Ans Al; Arif, Zia Ullah; Ahmed, Waqas; Arshad, Hassan

doi:10.1016/j.jmrt.2021.07.128

Cited by 153 publications

(71 citation statements)

References 235 publications

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“…Cellulose, in the form of nanostructures, is considered one of the most promising green materials of recent acquisition [ 31 ]. NC materials have many advantageous properties, such as chemical inertness, excellent mechanical properties, large specific surface area, and the availability of numerous hydroxyl groups that can be readily functionalized via chemical reactions [ 32 ].…”

Section: Resultsmentioning

confidence: 99%

Valorization of Kiwi Peels: Fractionation, Bioactives Analyses and Hypotheses on Complete Peels Recycle

Cairone

Garzoli

Menghini³

et al. 2022

Foods

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Kiwi fruit samples (Actinidia deliciosa Planch, cv. Hayward) represent a suitable and good source for fibers obtainment as well as for polyphenolic and carotenoid extraction. With this aim, in this study they were submitted to a double phase extraction to separate insoluble fibers by an organic phase containing lipophilic substances and an hydroalcoholic phase containing polyphenols and soluble fibers. Insoluble fibers could be separated by filtration and sent to be micronized and reused. Hydroalcoholic fractions were then furtherly fractionated by solid-phase extraction. Data coming from the color CIEL*a*b* and the HPLC-DAD analyses of the extracts were compared and correlate with those coming from the SPME-GC/MS analysis of either the finely shredded peels or of the extracts. The obtained extracts were also submitted to anti-radical activity evaluation and anti-Candida activity. Results show that all of the obtained residues are value added products. Hypotheses were also made about the nature and the possible recycle of the obtained purified solid residue.

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Section: Resultsmentioning

confidence: 99%

Valorization of Kiwi Peels: Fractionation, Bioactives Analyses and Hypotheses on Complete Peels Recycle

Cairone

Garzoli

Menghini³

et al. 2022

Foods

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“…All chemicals were used without further purification. PHB pellets (P304) from Biomer (Schwalbach am Taunus, Germany) with a density of 1.24 g/cm 3 were used as the polymer matrix in the composites.…”

Section: Methodsmentioning

confidence: 99%

“…The composite films were prepared by mixing PHB and modified celluloses (2 wt%) in a 30 cm 3 Brabender mixing chamber(Brabender GmbH & Co. KG, Duisburg, Germany) at 165 • C for 7 min, followed by molding on a two-rollmill to obtain sheets. These were further compression-molded in a P200E press (Dr. Collin, Ebersberg, Germany) at 175 • C with 120 s of preheating at 0.5 MPa and 60 s of compression at 10 MPa.…”

Section: Preparation Of the Phb/modified Cellulose Composite Filmsmentioning

confidence: 99%

“…Currently, petroleum is used in everything that requires electricity [1], and the dependence on petroleum-based plastics increases the demand for oil, which drags along an increased need for energy, and so on. The focus of research in recent years has been to reduce this demand by exploring more natural-based materials with the aim to replace classic, fossil-based plastics [2][3][4]. Promising results have been obtained with poly-(3-hydroxybutyrate) (PHB), an aliphatic microbial polyester that shows similar mechanical and thermal properties to polypropylene with the added bonuses of better barrier properties and biodegradability [5].…”

Section: Introductionmentioning

confidence: 99%

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Microfibrillated Cellulose Grafted with Metacrylic Acid as a Modifier in Poly(3-hydroxybutyrate)

et al. 2021

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This work proposes a new method for obtaining poly(3-hydroxybutyrate) (PHB)/microfibrillated cellulose (MC) composites with more balanced properties intended for the substitution of petroleum-based polymers in packaging and engineering applications. To achieve this, the MC surface was adjusted by a new chemical route to enhance its compatibility with the PHB matrix: (i) creating active sites on the surface of MC with γ-methacryloxypropyltrimethoxysilane (SIMA) or vinyltriethoxysilane (SIV), followed by (ii) the graft polymerization of methacrylic acid (MA). The high efficiency of the SIMA-MA treatment and the lower efficiency in the case of SIV-MA were proven by the changes observed in the Fourier transform infrared FTIR spectra of celluloses. All modified celluloses and the PHB composites containing them showed good thermal stability close to the processing temperature of PHB. SIMA-modified celluloses acted as nucleating agents in PHB, increasing its crystallinity and favoring the formation of smaller spherulites. A uniform dispersion of SIMA-modified celluloses in PHB as a result of the good compatibility between the two phases was observed by scanning electron microscopy and many agglomerations of fibers in the composite with unmodified MC. The dual role of SIMA-MA treatment, as both compatibilizer and plasticizer, was pointed out by mechanical and rheological measurements. This new method to modify MC and obtain PHB/MC composites with more balanced stiffness–toughness properties could be a solution to the high brittleness and poor processability of PHB-based materials.

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“…As fontes de NC são diversas, como por exemplo: fibras de folhas de abacaxi, espiga de milho, bagaço de cana de açúcar, casca de arroz, palha de trigo, casa de cevada, fibras de estrume, fibra de kenaf, fibras de sisal, resíduos de chá, juta, fibra de algodão, casca de soja, fibra de óleo de dendê, casca de jaca, polpa de eucalipto, pinha, tronco de palma, bambu, resíduo de papel, casca de banana, resíduo industrial de cerveja, linho, algodão e além de derivados de fontes vegetais como algas, bactérias e fungos (KHALID et al, 2021;MARAKANA et al, 2021;ZAKI et al, 2021); .…”

Section: Nanoceluloseunclassified

Diagnóstico Da Produção Agrícola Do Estado Do Paraná E Alternativas De Destinação Dos Resíduos Agroindustriais

Silva¹,

Espadrizano²,

Porto³

et al. 2022

Cad. Geogr.

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O estado do Paraná situa-se como um importante polo do agronegócio e do setor agroindustrial nacional, com produção tanto no eixo alimentar quanto não-alimentar. No presente estudo, realizou-se o diagnóstico da produção agrícola do estado do Paraná com base nos dados consolidados do ano de 2018, investigou-se a contribuição de cada região intermediária do estado e realizou-se uma apresentação das principais possibilidades de valorização de resíduos agroindustriais. Por meio de dados do IBGE e IPARDES, as três principais culturas do estado do Paraná são a de cana-de-açúcar, soja e milho, seguindo a mesma tendência nacional, sendo o terceiro estado brasileiro com maior produção agrícola entre cultura temporárias e permanentes. Avaliou-se que a região de Curitiba é a que apresenta maior capacidade financeira do setor agroindustrial embora a região Noroeste do estado do Paraná seja a aquela que produz mais toneladas de grãos. Fato interpretado como a inclusão da região portuária do litoral do estado na região de Curitiba e a necessidade da instalação de mais agroindústrias no Noroeste do Estado. A compostagem, alimentação animal, biossorventes, compensados, compósitos, biocombustíveis e biotecnologia foram apontadas como possibilidades de valorização de resíduos agroindustriais, contribuindo para a sustentabilidade das cadeias produtivas. Dessa forma, espera-se com este trabalho favorecer o desenvolvimento do setor agroindustrial do estado do Paraná e divulgar as potencialidades de destinação de resíduos agroindustriais, completando o ciclo de beneficiamento agrícola.

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Recent advances in nanocellulose-based different biomaterials: types, properties, and emerging applications

Cited by 153 publications

References 235 publications

Valorization of Kiwi Peels: Fractionation, Bioactives Analyses and Hypotheses on Complete Peels Recycle

Valorization of Kiwi Peels: Fractionation, Bioactives Analyses and Hypotheses on Complete Peels Recycle

Microfibrillated Cellulose Grafted with Metacrylic Acid as a Modifier in Poly(3-hydroxybutyrate)

Diagnóstico Da Produção Agrícola Do Estado Do Paraná E Alternativas De Destinação Dos Resíduos Agroindustriais

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