High quality fluorescent cellulose nanofibers from endemic rice husk: Isolation and characterization

Kalita, Eeshan; Nath, B.K.; Deb, Payel; Agan, F.; Islam, Md. Rofiqul; Saikia, Koushik

doi:10.1016/j.carbpol.2014.12.075

Cited by 85 publications

(34 citation statements)

References 29 publications

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“…Yield of pure cellulose from 7.77 g of G. glabra sample was recorded as 4.0 g. This value was found close to the values reported in previous cellulose isolation literature; 29-30% for hard wood, 37 32.8% for raw rice husk, 34 33.98% for capimmombaca (Panicum maximum), 28 49.43% for blue agave FIGURE 2. X-ray diffraction profiles of cellulose extracted from the roots of Glycyrrhiza glabra and commercial cellulose.…”

Section: Cellulose Contentmentioning

confidence: 60%

“…22 Previous studies conducted on cellulose isolation from various sources also reported similar XRD peaks; 15.7°, 22.8°, and 34.1°for old corrugated container fibers, 33 16.4°, 22.9°, and 35.2°for cellulose composite films, 29 15°, 23°c ellulose nanocrystals extracted from capimmombaca (Panicum maximum) 28 and 15.5°, 22.5°, and 34.6°for endemic rice husk. 34 Crystallinity Index of G. glabra cellulose was recorded as 70%. CrI value was also compared with some previous studies such as 77% for capimmombaca (Panicum maximum), 28 79% for bacterial cellulose 35 , and 79% for CNC.…”

Section: X-ray Diffractionmentioning

confidence: 99%

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Determination of Bovine Serum Albumin Adsorption Capacity of Newly Obtained Cellulose extracted from Glycyrrhiza glabra (Licorice)

2016

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Exploration of biodegradable and renewable composites ingredients is of great importance. Up to now, roots extract of Glycyrrhiza glabra has been used for different medicinal purposes but remaining cellulose-rich residues have not been evaluated for isolation of any green materials like cellulose. Here in this study, cellulose was successfully isolated from the roots of G. glabra by using conventional cellulose extraction method. The obtained product was characterized using FT-IR, XRD, and SEM. FT-IR and XRD analyses confirmed the identity of the product. The crystallinity index of cellulose isolates was calculated from XRD data as 70%. The cellulose content of the roots on dry basis was recorded as 48.5%. Three types of surface morphologies were observed: smooth non-porous surface, surface with fibril bundles, and porous surface having thin cellulose fibrils. In addition, bovine serum albumin (BSA) adsorption capacity of G. glabra cellulose was determined and compared with that of commercial cellulose. Newly obtained cellulose from the roots of G. glabra exhibited a higher affinity for BSA protein at neutral pH.

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Section: Cellulose Contentmentioning

confidence: 60%

Section: X-ray Diffractionmentioning

confidence: 99%

Determination of Bovine Serum Albumin Adsorption Capacity of Newly Obtained Cellulose extracted from Glycyrrhiza glabra (Licorice)

2016

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“…In the initial region from 25 to 150 ° C, the weight loss was mainly due to evaporation of the moisture or low molecular weight compounds . The initial thermal degradation of nanocellulose occurred at 268 °C corresponding to decomposition of sulfated crystalline segments of the sample . A dramatic weight loss occurred in the temperature range of 268 to 349 °C which was attributed to the breakdown of those crystalline segments which were not attacked by sulfuric acid and glycosidic linkage of cellulose .…”

Section: Resultsmentioning

confidence: 99%

“…A dramatic weight loss occurred in the temperature range of 268 to 349 °C which was attributed to the breakdown of those crystalline segments which were not attacked by sulfuric acid and glycosidic linkage of cellulose . The last weight loss which took place around 460 °C was related to the breakage of amorphous components causing formation of char . The high thermal stability of isolated nanocellulose from BS can make it a promising candidate to be applicable as an reinforcing material in biocomposites processing…”

Section: Resultsmentioning

confidence: 99%

Isolation of Nanocellulose from Broomcorn Stalks and Its Application for Nanocellulose/Xanthan Film Preparation

et al. 2019

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Nanocellulose extraction from broomcorn stalk was conducted using acid hydrolysis followed by sonication. The influence of acid concentration, hydrolysis time and temperature on nanocellulose isolation was studied. The minimum size and maximum yield of isolated nanocellulose were 40 nm and 71%, respectively obtained at acid concentration of 45 wt%, temperature of 45 °C and time of 75 min. The isolated nanocellulose was characterized through dynamic light scattering, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, X‐ray diffraction and thermogravimetric analysis. The results demonstrated the extraction of highly charged nanocellulose (–42.4 mV) with entangled network, high crystallinity (53%) and thermal stability (initial degradation at 268 °C). Xanthan gum films with different contents of isolated nanocellulose were prepared by solution casting method. The mechanical behavior of developed films was analyzed through tensile test. From the results, the sample with the loading of 60 wt% of nanocellulose displayed best properties with the tensile strength of 6.0125 MPa and Young's modulus of 14.64 MPa.

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“…The opacity was determined in the range of 200-800 nm using UV-vis spectrophotometer (Shimadzu 1700, Japan) (Kalita et al, 2015).…”

Section: Photoluminescence (Pl) and Uv-vis Spectroscopymentioning

confidence: 99%

Production of renewable cellulose nanopaper from culinary banana (Musa ABB) peel and its characterization

Khawas

Das

Deka

2016

Industrial Crops and Products

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High quality fluorescent cellulose nanofibers from endemic rice husk: Isolation and characterization

Cited by 85 publications

References 29 publications

Determination of Bovine Serum Albumin Adsorption Capacity of Newly Obtained Cellulose extracted from Glycyrrhiza glabra (Licorice)

Determination of Bovine Serum Albumin Adsorption Capacity of Newly Obtained Cellulose extracted from Glycyrrhiza glabra (Licorice)

Isolation of Nanocellulose from Broomcorn Stalks and Its Application for Nanocellulose/Xanthan Film Preparation

Production of renewable cellulose nanopaper from culinary banana (Musa ABB) peel and its characterization

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