Efficient Extraction and Structural Characterization of Hemicellulose from Sugarcane Bagasse Pith

Xie, Yitong; Guo, Xin; Ma, Zhiyu; Gong, Jingwei; Wang, Haisong; Lv, Yanna

doi:10.3390/polym12030608

Cited by 30 publications

(13 citation statements)

References 42 publications

(56 reference statements)

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“…Besides, the principal hemicellulose of the rind is xylose (15.49%), followed by galactose (0.78%) and arabinose (0.03%), whereas the hemicellulose monosaccharide content of pith is very low. It is noteworthy that the pith has extremely lower lignin which distinguishes itself from the other stalk pith, e.g., pith from corn stalk (12.6% lignin, [ 24 ]), pith from sugarcane bagasse stalk (20.3% lignin, [ 25 ]), and pith from Miscanthus×giganteus stalk (19.4% lignin, [ 26 ]).…”

Section: Resultsmentioning

confidence: 99%

A Comparative Investigation on Structural and Chemical Differences between the Pith and Rind of Sunflower Stalk and Their Influences on Nanofibrillation Efficiency

et al. 2022

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The structure and chemical composition of cell walls play a vital role in the bioconversion and utilization of plants. In the present study, the cell wall structure and chemical composition of pith and rind from sunflower stalks were compared and correlated to their nanofibrillation efficiency with ultrasonic treatment. Mild chemical pretreatment using 1% or 4% NaOH without any bleaching process were applied prior to ultrasonication nanofibrillation. Significant structural and chemical differences were demonstrated between the pith and rind, with the former exhibiting a much lower lignin and hemicellulose contents, higher pectin, much looser cell structure and higher cell wall porosity than the latter. Alkaline treatment alone was sufficient to eliminate most of the hemicellulose and pectin from stalk pith, whereas only partial removal of hemicellulose and lignin was achieved for the woody rind part. After 30 min of ultrasonic treatment, the stalk pith exhibited fully defibrillated fibrils with a continuous and entangled micro/nanofibrillated network, whereas numerous micron-sized fiber and fragments remained for the rind. The results indicated that stalk pith is less recalcitrant and easier to be fibrillated with ultrasonication than rind, which must be correlated to their distinct differences in both structure and chemical composition.

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Section: Resultsmentioning

confidence: 99%

A Comparative Investigation on Structural and Chemical Differences between the Pith and Rind of Sunflower Stalk and Their Influences on Nanofibrillation Efficiency

et al. 2022

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“…Hemicellulose was extracted from sugarcane bagasse pith using an ultrasound-assisted alkaline method according to our previous report [35]. PVA-1799 (alcoholysis degree = 99%; Mw = 75,000 g/mol) was purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China).…”

Section: Methodsmentioning

confidence: 99%

Active Biodegradable Polyvinyl Alcohol–Hemicellulose/Tea Polyphenol Films with Excellent Moisture Resistance Prepared via Ultrasound Assistance for Food Packaging

Guo

Wang

et al. 2021

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Poor water-vapor barriers and mechanical properties are common problems of biobased films. To maintain food quality, the barrier and its strength performance need to be improved. Tea polyphenols (TP) are a natural active substance, and their benzene ring structure provides a barrier for them as a film material. Films that incorporate TP also have enriched functionalities, e.g., as antioxidants. Here, active poly (vinyl alcohol) (PVA)-hemicellulose (HC)/TP films with good moisture resistance and antioxidant capacity were prepared via ultrasound assistance. The effects of TP incorporation and ultrasonication on the physical, antioxidant, and micromorphological properties of the films were investigated. Results showed that the addition of TP improved the thermal stability and water-vapor permeability (WVP) of the composite films. When a PVA-HC/TP composite film with a PVA-HC to TP mass ratio of 100:10 was treated with ultrasonication for 45 min, tensile strength was 25.61 Mpa, which was increased by 54% from the film without any treatment, and water-vapor permeability (WVP) value declined from 49% to 4.29 × 10−12 g·cm/cm2·s·Pa. More importantly, the films’ DPPH scavenging activity increased to the maximal levels of 85.45%. In short, these observations create a feasible strategy for preparing high-performance biodegradable active-packaging films.

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“…Different hemicellulose fractions can be separated based on their solubility through acidification or precipitation in ethanol/water mixtures. [ 283,301 ]…”

Section: Food Losses and Waste As Precursors Of Biocolloids And Advan...mentioning

confidence: 99%

“…In most cases, a preliminary removal of extractives and nonpolymeric sugars is required, considered as impurities. [283,301] Hemicelluloses are mostly extracted by alkaline treatments using diluted aqueous NaOH or KOH solutions, but other treatments, for example, based on H 2 O 2 , have also been reported. [302] After solubilization, hemicelluloses are isolated by precipitation from the soluble phase.…”

Section: Isolation Of Polysaccharides and Polyphenolsmentioning

confidence: 99%

The Food–Materials Nexus: Next Generation Bioplastics and Advanced Materials from Agri‐Food Residues

et al. 2021

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The most recent strategies available for upcycling agri‐food losses and waste (FLW) into functional bioplastics and advanced materials are reviewed and the valorization of food residuals are put in perspective, adding to the water–food–energy nexus. Low value or underutilized biomass, biocolloids, water‐soluble biopolymers, polymerizable monomers, and nutrients are introduced as feasible building blocks for biotechnological conversion into bioplastics. The latter are demonstrated for their incorporation in multifunctional packaging, biomedical devices, sensors, actuators, and energy conversion and storage devices, contributing to the valorization efforts within the future circular bioeconomy. Strategies are introduced to effectively synthesize, deconstruct and reassemble or engineer FLW‐derived monomeric, polymeric, and colloidal building blocks. Multifunctional bioplastics are introduced considering the structural, chemical, physical as well as the accessibility of FLW precursors. Processing techniques are analyzed within the fields of polymer chemistry and physics. The prospects of FLW streams and biomass surplus, considering their availability, interactions with water and thermal stability, are critically discussed in a near‐future scenario that is expected to lead to next‐generation bioplastics and advanced materials.

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Efficient Extraction and Structural Characterization of Hemicellulose from Sugarcane Bagasse Pith

Cited by 30 publications

References 42 publications

A Comparative Investigation on Structural and Chemical Differences between the Pith and Rind of Sunflower Stalk and Their Influences on Nanofibrillation Efficiency

A Comparative Investigation on Structural and Chemical Differences between the Pith and Rind of Sunflower Stalk and Their Influences on Nanofibrillation Efficiency

Active Biodegradable Polyvinyl Alcohol–Hemicellulose/Tea Polyphenol Films with Excellent Moisture Resistance Prepared via Ultrasound Assistance for Food Packaging

The Food–Materials Nexus: Next Generation Bioplastics and Advanced Materials from Agri‐Food Residues

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