Pretreatment of Cellulose By Electron Beam Irradiation Method

Jusri, Nur Amira Aida; Azizan, Amizon; Ibrahim, Nur; Salleh, Ruzitah Mohd; Rahman, Mohd Azizi Abdul

doi:10.1088/1757-899x/358/1/012006

Cited by 5 publications

(2 citation statements)

References 14 publications

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“…Other physical pretreatment methods aim at reducing the crystallinity of cellulose to improve accessibility for further conversion. One example is the irradiation with electron beams with doses of up to 1000 kGy, resulting in a 14% reduction of the crystallinity of microcrystalline cellulose (Jusri et al 2018). Further types of radiation are employed to treat lignocellulosic biomass prior to fermentation.…”

Section: Physical Pretreatment Methodsmentioning

confidence: 99%

Material utilization of green waste: a review on potential valorization methods

Langsdorf

Volkmar

Holtmann

et al. 2021

Bioresour. Bioprocess.

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Considering global developments like climate change and the depletion of fossil resources, the use of new and sustainable feedstocks such as lignocellulosic biomass becomes inevitable. Green waste comprises heterogeneous lignocellulosic biomass with low lignin content, which does not stem from agricultural processes or purposeful cultivation and therefore mainly arises in urban areas. So far, the majority of green waste is being composted or serves as feedstock for energy production. Here, the hitherto untapped potential of green waste for material utilization instead of conventional recycling is reviewed. Green waste is a promising starting material for the direct extraction of valuable compounds, the chemical and fermentative conversion into basic chemicals as well as the manufacturing of functional materials like electrodes for electro-biotechnological applications through carbonization. This review serves as a solid foundation for further work on the valorization of green waste.

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Section: Physical Pretreatment Methodsmentioning

confidence: 99%

Material utilization of green waste: a review on potential valorization methods

Langsdorf

Volkmar

Holtmann

et al. 2021

Bioresour. Bioprocess.

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“…Referring to the means of cellulose degradation, HPMC can be degraded by acid or alkali, mechanical method, biological method and ion radiation (Yang et al, 2022). Ionizing radiation includes gamma rays, electron beams, X-rays, alpha rays, and beta rays; the majority of studies to date have focused on the in uence of gamma rays and EBI on cellulose and paper sheets (Hwang et al, 2021;Jusri et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Study on Low Viscosity Hydroxypropyl Methylcellulose Obtained by Electron Beam Irradiation and Its Role in Powder Modification

Cheng,

Wang,

Hong

et al. 2023

Preprint

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In this study, hydroxypropyl Methylcellulose (HPMC) with lower viscosity was obtained by electron beam irradiation (EBI), and its physical modifiers for pharmaceutical powders was investigated when it was used during spray drying. After HPMC was irradiated at a dose of 150 kGy, the main structure of HPMC was not affected, and the substitution degree of methoxy and hydroxypropyl was not destroyed significantly. As the irradiation dose increased from 10 to 150 kGy, the molecular weight and viscosity of HPMC decreased continuously. The results of spray drying showed that HPMC could quickly migrate to the surface of the liquid medicine to cover droplets during spray drying and atomization, which improved the hygroscopicity and increased the softening point of spray-dried powder. And the powder water content is lower. After the powder is prepared into particles, the dissolution rate of particles is faster. Therefore, the modified powder exhibits better physical properties. The low viscosity HPMC obtained by electron beam irradiation is suitable for powder modification materials during spray drying, and is expected to be developed as excipient in traditional Chinese medicine and other industries.

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Mechanical Pretreatment Options on Biofuel Biomass Feedstock Discussing on Biomass Grindability Index Relating to Particle Size reduction—A Review

Azizan

Jusri

2021

Lecture Notes in Mechanical Engineering

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Pretreatment of Cellulose By Electron Beam Irradiation Method

Cited by 5 publications

References 14 publications

Material utilization of green waste: a review on potential valorization methods

Material utilization of green waste: a review on potential valorization methods

Study on Low Viscosity Hydroxypropyl Methylcellulose Obtained by Electron Beam Irradiation and Its Role in Powder Modification

Mechanical Pretreatment Options on Biofuel Biomass Feedstock Discussing on Biomass Grindability Index Relating to Particle Size reduction—A Review

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