Preparation of convertible cellulose from rice straw using combined organosolv fractionation and alkaline bleaching

Ke-hui, Luo; Wang, Yuexin; Xiao, Huzong; Song, Guangsen; Cheng, Qunpeng; Fan, Guozhi

doi:10.1088/1755-1315/237/5/052053

Cited by 12 publications

(4 citation statements)

References 6 publications

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“…However, these treatments have to be optimised since MC crystallinity depends on the plant source, and it can be evidenced by the FTIR characteristic bands observed in the 2918-2851 cm -1 and 3800-3000 cm -1 , regions, as well as other characteristic peaks observed for lignin and hemicellulose fractions. Luo et al (2019) obtained a yield of 93.2% for MC extracted from RS using organosolv fractionation for 6 h followed by bleaching for 10 h.…”

Section: Microcrystalline Cellulose From Rsmentioning

confidence: 99%

Rice straw as a valuable source of cellulose and polyphenols: Applications in the food industry

Ramos

Laveriano-Santos

Sebastián

et al. 2023

Trends in Food Science & Technology

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Section: Microcrystalline Cellulose From Rsmentioning

confidence: 99%

Rice straw as a valuable source of cellulose and polyphenols: Applications in the food industry

Ramos

Laveriano-Santos

Sebastián

et al. 2023

Trends in Food Science & Technology

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“…This increase may be due to the higher NFC content in the polymer matrix and the fact that all the diffraction patterns showed an increase in the peak intensity compared to the pure HPMC films. However, as more amorphous HPMC is introduced, the peak intensity of the HPMC/NFC films may show an overall decrease in the peak intensity (Luo et al 2019).…”

Section: Xrd Analysis Of the Hpmc/nfc Nanocomposite Filmsmentioning

confidence: 99%

Hydroxypropyl methylcellulose nanocomposites containing nano fibrillated cellulose (NFC) from Agave americana L. for food packaging applications

Krishnadev

Subramanian

Lakshmanan

et al. 2021

BioRes

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Hydroxypropylmethylcellulose (HPMC) is popularly known as a hydrocolloid for potential use as a biopolymer film. The films of HPMC exhibit brittleness, lacking flexibility, but they can provide a gas barrier. With the aim of improving the HPMC film properties, nanofibrillated cellulose (NFC) from the succulent plant Agave americana L was incorporated as reinforcement material using the solution casting method. The films were prepared with three different amounts of NFC with glycerol as a plasticizer. The incorporation of the NFC into the nanocomposite films showed a 1,000-fold reduction in the gas permeability. However, significant improvements in the tensile strength (TS), the elongation at break (EAB), and Young’s modulus (YM) were only observed with 1% NFC. A higher moisture content (24.5%) and a higher solubility (59.5%) were observed in the HPMC/NFC-1 film, which also exhibited the best biodegradability loss of the films that were observed with a 92.8% degradation rate in 15 d of soil burial studies. Therefore, the results evidence that the HPMC/NFC films might be potentially suitable as food wrap packaging on perishable produce of fruits and vegetables to maintain their quality attributes and prolong the storage life.

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“…19,20 Luo et al reported CEL production from rice straw using the organosolv approach, followed by bleaching with Na 2 CO 3 / H 2 O 2 and then treating with hydrochloric acid, obtaining a fraction with a CEL content of 92.4%. 21 Nie et al reported a comparative study of rice straw using the organosolv process containing 60% n-butanol, n-propanol, ethanol, and methanol in water at 75 °C for 3 h, achieving 89% of the CEL-rich residue. 22 Amiri et al also reported that using 75% ethanol with 1% H 2 SO 4 at 180 °C for 60 min resulted in 66.9% solid recovery, containing 62.3% CEL out of 49.2% CEL present in untreated rice straw.…”

Section: Introductionmentioning

confidence: 99%

“…Luo et al reported CEL production from rice straw using the organosolv approach, followed by bleaching with Na 2 CO 3 /H 2 O 2 and then treating with hydrochloric acid, obtaining a fraction with a CEL content of 92.4% . Nie et al reported a comparative study of rice straw using the organosolv process containing 60% n -butanol, n -propanol, ethanol, and methanol in water at 75 °C for 3 h, achieving 89% of the CEL-rich residue .…”

Section: Introductionmentioning

confidence: 99%

Consecutive Organosolv and Alkaline Pretreatment: An Efficient Approach toward the Production of Cellulose from Rice Straw

et al. 2021

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The efficient removal of silica from rice straw and separation of its major components is essential for further valorization to produce value-added products. With regard to this, the isolation of cellulose (CEL), hemicellulose (HEM), and lignin (LIG) is imperative but quite challenging. Among several pretreatments of lignocellulosic biomass, the organosolv approach is deemed as one of the promising methods. Here, we present two different two-step approaches for the removal of silica and disintegration of significant components from rice straw, especially CEL; (i) base pretreatment, followed by organosolv treatment in the presence of organic acid, and (ii) organosolv pretreatment in the presence of organic acid, followed by base treatment. After each treatment, the recovered solid components are confirmed by various characterization techniques such as Fourier-transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscopy, and thermogravimetric analysis. Method 2 demonstrates 82% total removal of HEM and LIG along with 90.4% of silica removal from rice straw to obtain CEL. Furthermore, the obtained crude CEL is found to be with a purity of 78%. Excellent removal of silica (90.4%) reflects that in a test study, the crude CEL obtained from method 2 gives a higher yield of butyl glucosides (59.6%) than rice straw, which affords 45.0% of butyl glucosides.

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Preparation of convertible cellulose from rice straw using combined organosolv fractionation and alkaline bleaching

Cited by 12 publications

References 6 publications

Rice straw as a valuable source of cellulose and polyphenols: Applications in the food industry

Rice straw as a valuable source of cellulose and polyphenols: Applications in the food industry

Hydroxypropyl methylcellulose nanocomposites containing nano fibrillated cellulose (NFC) from Agave americana L. for food packaging applications

Consecutive Organosolv and Alkaline Pretreatment: An Efficient Approach toward the Production of Cellulose from Rice Straw

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