Enhanced Enzymatic Hydrolysis of Rice Straw Pretreated by Oxidants Assisted with Photocatalysis Technology

Chang, Ken-Lin; Wang, Xiaoqin; Han, Yang‐Su; Deng, Hao; Liu, Jingyong; Lin, Yuan-Chung

doi:10.3390/ma11050802

Cited by 11 publications

(3 citation statements)

References 33 publications

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“…Indulin AT, a popular pine kraft lignin with a low degree of sulfonation, was selected as the lignin substrate of reference. Complementarily, in view of the previous literature on the depolymerization of lignin for the production of valuable chemicals via nanoparticle-catalyzed photoreaction, , the assistance of the [C 2 mim][OAc]-based treatment with UV irradiation in combination with nanoparticles (TiO 2 or AgCl), and optionally in the presence of a well-known oxidizing agent such as H 2 O 2 , has also been explored.…”

Section: Introductionmentioning

confidence: 99%

Capacity of Aqueous Solutions of the Ionic Liquid 1-Ethyl-3-methylimidazolium Acetate to Partially Depolymerize Lignin at Ambient Temperature and Pressure

Pena,

Rodil,

Rodríguez

2024

J. Agric. Food Chem.

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Lignin is a very attractive and abundant biopolymer with the potential to be a biorenewable source of a large number of value-added organic chemicals. The current state-of-the-art methods fail to provide efficient valorization of lignin in this regard without the involvement of harsh conditions and auxiliary substances that compromise the overall sustainability of the proposed processes. Making an original approach from the set of mildest temperature and pressure conditions, this work identifies and explores the capacity of an aqueous solution of the nonvolatile ionic liquid 1-ethyl-3-methylimidazolium acetate ([C 2 mim][OAc]) to partially depolymerize technical lignin (Indulin AT) by means of a treatment consisting in the simple contact at ambient temperature and pressure. Among a considerable number of valuable phenolic molecules that were identified in the resulting fluid, vanillin (yield of about 3 g/kg) and guaiacol (yield of about 1 g/kg) were the monophenolic compounds obtained in a higher concentration. The properties of the post-treatment solids recovered remain similar to those of the original lignin, although with a relatively lower abundance of guaiacyl units (in agreement with the generation of guaiacyl-derived phenolic molecules, such as vanillin and guaiacol). The assistance of the treatment with UV irradiation in the presence of nanoparticle catalysts does not lead to an improvement in the yields of phenolic compounds.

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Section: Introductionmentioning

confidence: 99%

Capacity of Aqueous Solutions of the Ionic Liquid 1-Ethyl-3-methylimidazolium Acetate to Partially Depolymerize Lignin at Ambient Temperature and Pressure

Pena,

Rodil,

Rodríguez

2024

J. Agric. Food Chem.

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“…More holes and increasing hydroxyl radical concentration were provided for oxidative degradation of organic contaminants by introducing oxidizing agents such as H 2 O 2 , S 2 O 8 − and IO 4 − . Therefore, a higher pretreatment efficiency can be obtained ( Chang et al., 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Light-driven lignocellulosic biomass conversion for production of energy and chemicals

Ouyang¹,

Wang²,

Gao³

et al. 2022

iScience

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“…The subject of research on the physical-mechanical properties of rice grains has already been addressed by researchers, because the specificity of rice grain processing and the energy demand of processing lines, e.g., grinding, drying, pelleting, etc., depends largely on these properties [11][12][13][14][15][16][17]. In their research, Zeng, et al [18] focused on modeling cracking of rice grains depending on the grain indicators for the grinding process and modeling grinding and crushing processes using the discrete element method DEM.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Processing Properties of Rice Grains

et al. 2020

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Strength properties of grains have a significant impact on the energy demand of grinding mills. This paper presents the results of tests of strength and energy needed the for destruction of rice grains. The research aim was to experimentally determine mechanical and processing properties of the rice grains. The research problem was formulated in the form of questions: (1) what force and energy are needed to induce a rupture of rice grain of the Oryza sativa L. of long-grain variety? (2) what is the relationship between grain size and strength parameters and the energy of grinding rice grain of the species Oryza sativa L. long-grain variety? In order to find the answer to the problems posed, a static compression test of rice grains was done. The results indicate that the average forces needed to crush rice grain are 174.99 kg m·s−2, and the average energy is 28.03 mJ. There was no statistically significant relationship between the grain volume calculated based on the volumetric mass density Vρ and the crushing energy, nor between the volume Vρ and other strength properties of rice grains. In the case of Vs, a low negative correlation between strength σmin and a low positive correlation between the power inducing the first crack were found for the grain size related volume. A low negative correlation between the grain thickness a3, stresses σmin and work WFmax was found as well as a low positive correlation between thickness a3 and the force inducing the first crack Fmin.

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Enhanced Enzymatic Hydrolysis of Rice Straw Pretreated by Oxidants Assisted with Photocatalysis Technology

Cited by 11 publications

References 33 publications

Capacity of Aqueous Solutions of the Ionic Liquid 1-Ethyl-3-methylimidazolium Acetate to Partially Depolymerize Lignin at Ambient Temperature and Pressure

Capacity of Aqueous Solutions of the Ionic Liquid 1-Ethyl-3-methylimidazolium Acetate to Partially Depolymerize Lignin at Ambient Temperature and Pressure

Light-driven lignocellulosic biomass conversion for production of energy and chemicals

Mechanical and Processing Properties of Rice Grains

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