Effective Utilization of Moso-Bamboo (Phyllostachys heterocycla) with Hot-Compressed Water

Kumagai, Shinya; Hirajima, Tsuyoshi

doi:10.1007/978-3-642-54458-3_7

Cited by 5 publications

(13 citation statements)

References 19 publications

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“…This indicates that decomposition of hemicellulose is easier than that of cellulose in hot compressed water. This agrees with the findings of Kumagai et al, where easier hemicellulose decomposition was attributed to the difference in the reaction temperature for effective decomposition: 180˚C for hemicellulose and 240˚C for cellulose [7]. Reaction times longer than 20 min show decreased organic acids recovery.…”

Section: Resultssupporting

confidence: 92%

“…The decrease in hemicellulose in the solid residue and the increase in xylose extraction yields showed a good correlation. Furthermore, glucose can be converted to ethanol by biological method, and both glucose and xylose are precursors of furans obtained by dehydration [7]. Furfural, a typical furan, has many applications in the fields of oil refinery, plastics, pharmaceutics, agrochemical industries, and non-petroleum-derived saccharidederived chemicals [8] [9].…”

Section: Introductionmentioning

confidence: 99%

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Monosaccharide Recovery from Peat and Peatified Wood by Ultrasonication Pretreatment and Hydrothermal Treatment

Nonaka

Hirajima

Kumagai

2017

IJCCE

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Peat and peatified wood are significant carbohydrate resources in tropical rainforests. The carbohydrates of cellulose and hemicellulose are important sources of monosaccharides for both vital activities and industrial applications, such as furan production of furfural and hydroxymethyl furfural. Hydrothermal treatment at 200˚C and ultrasonic irradiation pretreatment were used to recover monosaccharides from the abovementioned resources. The monosaccharide recovery from peat was shown to be higher than that from peatified wood. The conversion to organic acids is considered to proceed rapidly because acids are always detected with monosaccharides. This conversion is outstripped by the organic acid-to-gas reaction for treatment times longer than 20 min. The monosaccharide recovery from peatified wood was improved by the ultrasonication pretreatment. It is considered that ultrasonic irradiation broke down lignin blockages, enabling water molecules to access the carbohydrates more easily in the subsequent hydrothermal treatment.

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Monosaccharide Recovery from Peat and Peatified Wood by Ultrasonication Pretreatment and Hydrothermal Treatment

Nonaka

Hirajima

Kumagai

2017

IJCCE

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“…Upon hydrothermal treatment, the moisture content and ash content of sawdust decreased. Decreased ash content is mainly explained by the dissolution of mineral matter at hydrothermal conditions . Not all the mineral matter dissolves in hydrothermal liquid.…”

Section: Resultsmentioning

confidence: 99%

“…This is mainly due to hemicellulose degradation at hydrothermal conditions. Hemicellulose degradation also resulted intensification of other biomass components, which is observable from CO stretching vibrations at 1,694 cm −1 , aromatic skeletal vibration derived from lignin at 1,602 cm −1, guaiacyl unit of lignin at 1,266 cm −1. The presence of CO structure was also mentioned in the study of Fuertes and Sevilla .…”

Section: Resultsmentioning

confidence: 99%

Pyrolysis and combustion characteristics and kinetics of wood sawdust and wood sawdust hydrochar

Kabakcı

2019

Env Prog and Sustain Energy

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This study compares the pyrolysis and combustion characteristics with the kinetics of wood sawdust and its hydrochar. Wood sawdust hydrochar was obtained by the hydrothermal treatment of wood sawdust (biomass/water: 1 g/4 mL) at 220°C, where the residence time was set as 90 min. After hydrothermal carbonization, carbon content and heating value were both increased by 14%. Pyrolysis and combustion of wood sawdust and its hydrochar were performed by thermogravimetric analysis at 10, 20, 30, and 40°C/min. Kissinger–Akahira–Sunose (KAS) method, Friedman method, Flynn–Wall–Ozawa (FWO) method, and Kissinger method were used for analyzing the pyrolysis data. For combustion, only KAS and FWO methods were used to determine the kinetic parameters. As compared to wood sawdust pyrolysis, average activation energy of hydrochar pyrolysis was lower (150.36 kJ/mol by using KAS method, 153.05 kJ/mol by using FWO method). Based on mean activation energies, pyrolysis reaction of hydrochar was more favorable than its combustion. In combustion, average activation energy of hydrochar combustion reaction was higher; indicating that combustion of wood sawdust was more favorable.

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“…Hence, the moso bamboo has more potential for the development of a botanical aphicide. Furthermore, the utilization of moso bamboo in botanical fungicide, cosmetics and health products also had some successful applications …”

Section: Discussionmentioning

confidence: 99%

Laboratory and field evaluation of the aphidicidal activity of moso bamboo (Phyllostachys pubescens) leaf extract and identification of the active components

Gao

Shi

Liao

et al. 2019

Pest Management Science

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BACKGROUND Botanical pesticides increasingly play important roles in the control of agricultural pests. In this study, the aphidicidal effect of moso bamboo (Phyllostachys pubescens) extract against mustard aphid was confirmed, the main active compounds identified, and aphidicidal mechanism of the most active compound established. RESULTS When the treatment concentration was 10.0 g L−1, the corrected mortality of bamboo leaf extract (BE) was 53.22 ± 5.20% and the petroleum ether component of bamboo leaf extract (PE) reached 82.76 ± 4.50%, which also showed a synergistic effect with imidacloprid. Four flavonoids were identified as the main active components in the BE via activity tracking and phytochemical method. Isoorientin had an LC50 of 313.22 mg L−1, and affected the activities of acetylcholinesterase and peroxidase significantly, revealing the possible aphidicidal mechanism. When the treatment of 11.1% PE·imidacloprid was 200 mL, the control effect was 99.07%, which was better than that observed with 10% of imidacloprid or 0.5% of matrine. CONCLUSIONS These data provide a better understanding of the aphidicidal activity and aphidicidal mechanism of moso bamboo leaf extract and the most active compound, isoorientin. This will help in developing a more effective botanical aphicide. © 2019 Society of Chemical Industry

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Effective Utilization of Moso-Bamboo (Phyllostachys heterocycla) with Hot-Compressed Water

Cited by 5 publications

References 19 publications

Monosaccharide Recovery from Peat and Peatified Wood by Ultrasonication Pretreatment and Hydrothermal Treatment

Monosaccharide Recovery from Peat and Peatified Wood by Ultrasonication Pretreatment and Hydrothermal Treatment

Pyrolysis and combustion characteristics and kinetics of wood sawdust and wood sawdust hydrochar

Laboratory and field evaluation of the aphidicidal activity of moso bamboo (Phyllostachys pubescens) leaf extract and identification of the active components

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