Production of nanocellulose fibers from pinecone biomass: Evaluation and optimization of chemical and mechanical treatment conditions on mechanical properties of nanocellulose films

Rambabu, N.; Panthapulakkal, Suhara; Sain, M.; Dalai, Ajay K.

doi:10.1016/j.indcrop.2015.11.083

Cited by 179 publications

(84 citation statements)

References 32 publications

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“…The images also confirm that the aqueous dispersions contain nanocrystals, which primarily consist of individual and some aggregate fibrils. This was consistent with the structural model proposed by Battista and Smith (1962) and with the results obtained by Samir et al (2005), Rosa et al (2010), Thomas et al (2015), Rambabu et al (2016) and Silva et al (2012).…”

Section: Characterization Of Nanocellulose From Green Coconut Fiberssupporting

confidence: 93%

“…The coconut cellulose nanocrystals obtained with longer hydrolysis time and a lower temperature by Rosa et al (2010) had an average L and D of 197 and 5.8 nm, respectively, and a L/D ratio of 39. The results found in this study were also consistent with those found by other authors, who characterized the dimensions of nanocellulose from different ligno-cellulosic sources (Bondeson et al, 2006;Elazzouzi-Hafraoui et al, 2008;Roohani et al, 2008;Silva et al, 2012;Rambabu et al, 2016). Methods used to prepare nanocellulose are inexpensive; in addition, green coconut bark is widely available, and its disposal is a problem.…”

Section: Characterization Of Nanocellulose From Green Coconut Fiberssupporting

confidence: 91%

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Characterization of cassava starch films plasticized with glycerol and strengthened with nanocellulose from green coconut fibers

Machado¹,

Reis²,

Cruz³

et al. 2017

Afr. J. Biotechnol.

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The aim of this study was to obtain and characterize biodegradable films of cassava starch plasticized with glycerol and reinforced with nanocellulose from coconut fibers. The mechanical and physicalchemical properties of the nano-biocomposites films obtained were evaluated. The method used to investigate the viability of incorporating coconut nanocellulose in films was applied through a statistical design of the response surface of 17 formulations containing three independent variables (starch, glycerol and nanocellulose). The films were prepared through casting technique, and the effect of different concentrations of the ingredients in each formulation was investigated by monitoring the dependent variables. The green coconut fiber was composed of 32% cellulose, 38% lignin and 0.25% hemicellulose resulted in nanocellulose with a length (L)/diameter(D) value of 38.9±4.7 after the acid hydrolysis process (64% H 2 SO 4 ; 50°C; 10-15 min). The incorporation of nanocellulose resulted in significant changes (p<0.05) in the barrier and mechanical properties. Additionally, there was a significant increase in the Young's modulus and in the tensile of the nano-biocomposites. Consequently, there was a decrease in the percentage of elongation. Thus, films formulated from cassava starch plasticized with glycerol could have significantly altered mechanical, technical and barrier properties due to the incorporation of coconut nanocellulose.

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Section: Characterization Of Nanocellulose From Green Coconut Fiberssupporting

confidence: 93%

Section: Characterization Of Nanocellulose From Green Coconut Fiberssupporting

confidence: 91%

Characterization of cassava starch films plasticized with glycerol and strengthened with nanocellulose from green coconut fibers

Machado¹,

Reis²,

Cruz³

et al. 2017

Afr. J. Biotechnol.

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show abstract

“…The production of cellulose nanocrystals from different lignocellulosic fibers has attracted interest in the scientific and industrial community in recent years. This has been owing to their mechanical and thermal properties, cost effectiveness, and versatility [20,21] . Nanocrystals are generally characterized by high solidity and crystallinity, which afford sustainability.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2017

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“…Bleaching, which was applied after alkali hydrolysis, also helped eliminate phenolic groups in lignin, leading to the disruption of the lignin structure Motaung & Mtibe, 2015). Previous works indeed reported similar decrease in the lignin content after alkaline treatment with NaOH and NaClO 2 (Rambabu, Panthapulakkal, Sain, & Dalai, 2015).…”

Section: Chemical Compositionmentioning

confidence: 88%

Characterization of Nanofibrillated Cellulose Produced by Different Methods from Cabbage Outer Leaves

Khukutapan

Chiewchan

Devahastin

2018

Journal of Food Science

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NFC could be produced from cabbage outer leaves, which are an abundantly available by-product of a vegetable processing plant, via the combined hydrothermal and mechanical pretreatment without the use of any chemicals. This chemical-free preparation process is highly desirable as it leaves no residues in the product and causes no chemical waste that needs to be treated. Cabbage-based NFC also exhibits similar characteristics to that prepared via a chemically treated route.

show abstract

Production of nanocellulose fibers from pinecone biomass: Evaluation and optimization of chemical and mechanical treatment conditions on mechanical properties of nanocellulose films

Cited by 179 publications

References 32 publications

Characterization of cassava starch films plasticized with glycerol and strengthened with nanocellulose from green coconut fibers

Characterization of cassava starch films plasticized with glycerol and strengthened with nanocellulose from green coconut fibers

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

Characterization of Nanofibrillated Cellulose Produced by Different Methods from Cabbage Outer Leaves

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