Hydrothermal pretreatment of biomass-waste-garlic skins in the cellulose nanofiber production process

Yeganeh, Fariba; Chiewchan, Naphaporn; Chonkaew, Wunpen

doi:10.1007/s10570-022-04452-6

Cited by 18 publications

(9 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absorption bands present in the 2800–3000 cm −1 range correspond to the -CH stretching vibrations of the -CH 3 - and -CH 2 - groups of lignin in the samples. The intense absorption band at 1730 cm −1 corresponding to the stretching vibration of the -C=O bond in the beta position of the acetyl or carboxylic acid groups is observed for WS and HCWS eco-materials, and it is caused by the presence of holocellulose (the carbohydrate fraction of woody materials that is insoluble in water) in these samples [ 49 ]. A decrease in the intensity of the absorption bands mentioned above in the spectra of eco-materials obtained by the HTC process could indicate the degradation of the low molecular weight of polysaccharides during hydrothermal treatment.…”

Section: Resultsmentioning

confidence: 99%

Walnut Shell Biowaste Valorization via HTC Process for the Removal of Some Emerging Pharmaceutical Pollutants from Aqueous Solutions

Țurcanu

Matei

Râpă

et al. 2022

IJMS

View full text Add to dashboard Cite

This research emphasizes the performance of some eco-friendly carbon materials as hydrochars (HC) obtained by the hydrothermal carbonization (HTC) process applied to walnut shell (WS) biowaste. These materials display promising properties that can be used for environmental applications such as emerging pharmaceutical pollutant retention from water sources. Thus, three hydrochars coded HCWS1, HCWS2, and HCWS3 were obtained using a dynamic autoclave in specific conditions—temperature of 220 °C, autogenous pressure, 1:10 biomass–water weight ratio—and for three different reaction times, 1 h, 6 h, and 12 h. The HCWSs were characterized by means of ATR-FTIR and SEM-EDS analyses and tested as possible adsorbents to assess the removal efficiencies of some emerging pharmaceutical pollutants (paracetamol and methylene blue) by UV–VIS spectrophotometry. Kinetic and adsorption studies were carried out. The best results were obtained for the HCWS3 hydrochar. Further perspectives include an activation step of the hydrochars and their testing on other emerging pharmaceutical pollutants.

show abstract

Section: Resultsmentioning

confidence: 99%

Walnut Shell Biowaste Valorization via HTC Process for the Removal of Some Emerging Pharmaceutical Pollutants from Aqueous Solutions

Țurcanu

Matei

Râpă

et al. 2022

IJMS

View full text Add to dashboard Cite

show abstract

“…Therefore, GP has a comparatively high cellulose content, and it is a desirable material for utilization in the fabrication of bio-composites [13]. Only a small number of studies have been published on CNC extraction from GP and the use of CNCs as strengthening elements in many polymeric mixtures [14]. Similar to CNCs, montmorillonite (MMt) clay has a great strengthening property, and it is the most popular natural clay that has been successfully employed in many nanocomposite production methods [15].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Bio-Nanocomposite Packaging Films with PVA, MMt Clay Nanoparticles, CNCs, and Essential Oils for the Postharvest Preservation of Sapota Fruits

Poongavanam,

Subramaniyan,

Sellamuthu

et al. 2023

Polymers

View full text Add to dashboard Cite

Sapota is an important climacteric fruit with limited shelf life. A special system must be employed to extend the shelf life of sapota fruits. In the present study, polyvinyl alcohol (PVA) and montmorillonite clay (MMt)-based bio-nanocomposite films (BNFs) were integrated at various concentrations (2%, 4%, 6%, and 8%) into cellulose nanocrystals (CNCs), produced from garlic peels (GPs). The BNF loaded with 8% CNC has a better crystallinity index and mechanical properties than the other concentrations of CNC. Therefore, the 8% CNC-incorporated BNF (BNF-8) was selected for further packaging studies. The combined effect of BNF-8 with ajwain essential oil (AO) and oregano essential oil (OO) vapors and BNF-8 with carbendazim (commercial fungicide-CARB) were investigated. In this study, the BNF-based packagings are categorized into five types, viz: BNF+8% CNC (BNF-8), BNF-8+AO, BNF-8+OO, BNF-8+CARB and the non-packaged fruits (control). The shelf-life duration, antioxidant activity, firmness, decay index, and sensory quality were evaluated in order to identify the effectiveness of packaging treatment on sapota fruits. BNF-8+CARB, BNF-8+AO, and BNF-8+OO packaging extended the shelf life of sapota fruits to up to 12 days and maintained the overall physiochemical parameters and sensory qualities of the fruits. Therefore, the BNF-8+AO and BNF-8+OO packaging materials are appropriate alternatives to commercial fungicides for the preservation of sapota during postharvest storage.

show abstract

“…The preparation of CNFs is considerably influenced by various pretreatment parameters, such as liquid-to-solid ratio, temperature, time, and [MEA][(HOA)(H 2 OA)] content. Thus, the optimization of the pretreatment parameters for CNF production is crucial for obtaining maximum yield, 12 improving the feasibility of commercial applications for the produced CNFs.…”

Section: Introductionmentioning

confidence: 99%

Response surface optimization of ionic liquid pretreatments for maximizing cellulose nanofibril production

Peng,

Zhu,

Liu

et al. 2023

RSC Adv.

View full text Add to dashboard Cite

show abstract

Hydrothermal pretreatment of biomass-waste-garlic skins in the cellulose nanofiber production process

Cited by 18 publications

References 55 publications

Walnut Shell Biowaste Valorization via HTC Process for the Removal of Some Emerging Pharmaceutical Pollutants from Aqueous Solutions

Walnut Shell Biowaste Valorization via HTC Process for the Removal of Some Emerging Pharmaceutical Pollutants from Aqueous Solutions

Fabrication of Bio-Nanocomposite Packaging Films with PVA, MMt Clay Nanoparticles, CNCs, and Essential Oils for the Postharvest Preservation of Sapota Fruits

Response surface optimization of ionic liquid pretreatments for maximizing cellulose nanofibril production

Contact Info

Product

Resources

About