Article
Materials Science, Paper & Wood
Jonathan Sergio Chavez-Rosales, Luis Fernando Pintor-Ibarra, Nicolas Gonzalez-Ortega, Rocio Orihuela-Equihua, Faustino Ruiz-Aquino, Concepcion Lujan-alvarez, Jose Guadalupe Rutiaga-Quinones
Summary: The basic chemical composition and calorific value of 19 samples of pine sawdust from different forest industries in five states of the Mexican Republic were determined. Significant statistical differences were found among the samples, indicating the potential of pine sawdust biomass for obtaining densified solid biofuels.
Article
Environmental Sciences
T. de Paula Protasio, J. S. da Costa, M. V. Scatolino, M. D. R. Lima, M. R. de Assis, M. G. da Silva, L. Bufalino, A. F. Dias Junior, P. F. Trugilho
Summary: The study reveals the relationships between chemical compounds and pyrolysis behavior of lignocellulosic wastes from Amazonian crops. Cocoa pod husk and palm empty fruit bunch showed the lowest initial degradation temperatures, while maize cob exhibited high thermal degradation rate and mass loss. Biomasses with higher extractives contents exhibited pronounced mass losses at temperatures below 300 degrees Celsius.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Oswaldo Moreno-Anguiano, Artemio Carrillo-Parra, Jose G. Rutiaga-Quinones, Christian Wehenkel, Marin Pompa-Garcia, Francisco Marquez-Montesino, Luis F. Pintor-Ibarra
Summary: The study focused on the feasibility and performance of utilizing Luffa aegyptiaca, Agave durangensis, and Pennisetum sp. to manufacture particleboards. The results showed that L. aegyptiaca fruit had higher holocellulose content, suitable for particleboards with higher mechanical resistance, while Pennisetum sp. leaves were ideal for making particleboards with high resistance to water absorption.
Article
Materials Science, Paper & Wood
Aman Gupta, Bhupender Dutt, Sonika Sharma
Summary: The effects of thermal modification on Pinus roxburghii were examined using various chemical parameters. Wood samples were thermally modified at temperatures of 80, 120, 160, and 200 degrees C for durations of 2, 4, and 6 h. Different temperatures and heating times led to variations in chemical properties, with the exception of cold water soluble extractives. Among the parameters studied, the highest mean values of cold water extractives (8.20%), hot water soluble extractives (12.7%), holocellulose content (71.8%), and ash content (1.46%) were recorded at 120 degrees C, whereas the highest mean values of alcohol benzene soluble extractives (13.9%) and lignin content (33.7%) were observed at 200 degrees C. The lowest mean values of cold water soluble extractives (5.82%), hot water soluble extractives (9.27%), holocellulose content (65.8%), and ash content (1.03%) were found at 200 degrees C, while the highest value of alcohol benzene soluble extractives (12.2%) and lignin content (28.0%) were found at 80 degrees C.
Article
Polymer Science
Zhaoyang Yu, Dongnian Xu, Jinbo Hu, Shanshan Chang, Gonggang Liu, Qiongtao Huang, Jin Han, Ting Li, Yuan Liu, Xiaodong (Alice) Wang
Summary: This study aims to investigate the mechanism behind the quenching of lignin's autofluorescence in L. alata and finds that the abundant extractives in L. alata may be responsible for the autofluorescence quenching.
Article
Environmental Sciences
Paula S. Barbosa, Marcio H. P. Barbosa, Bruno de F. H. de Faria, Reinaldo F. Teofilo
Summary: Generic procedures for the determination of extractives and carbohydrates were improved specifically for sugarcane bagasse, with optimized extraction time and separation method. The percentages of different carbohydrates in the extractive-free biomass were determined.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Agricultural Engineering
Jianyi Jiang, Yao Peng, Yangyang Ran, Jinzhen Cao
Summary: The study shows that hygrothermal modification of wood improves its decay resistance, and the formation of pseudo lignin plays a key role in this process. Pseudo lignin exhibits significant inhibition effect against brown rot fungus, but its effect against white rot fungus is less obvious.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Plant Sciences
Diana Barros, Elia Fernandes, Meirielly Jesus, Lillian Barros, Jose Ignacio Alonso-Esteban, Preciosa Pires, Manuela Vaz Velho
Summary: This study aimed to assess the value of the primary by-product of Pinus pinaster bark from the Minho region of Portugal. The research examined the bark's chemical and thermal characteristics and revealed its potential for producing valuable chemicals.
Article
Agricultural Engineering
Italo Pisano, Lalitha Gottumukkala, Daniel J. Hayes, James J. Leahy
Summary: Accurate composition analysis of biomass is essential in determining its potential uses and processing methods. This study focused on assessing lignocellulosic constituents in forestry, agricultural, and underutilised waste residues, with emphasis on hemicellulose monomers. Variations were observed in structural sugars content, hemicellulose concentration, and composition among different feedstock types and fractions.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Materials Science, Paper & Wood
Yus Andhini Bhekti Pertiwi, Futoshi Ishiguri, Haruna Aiso, Denny Irawati, Jyunichi Ohshima, Naoto Habu, Shinso Yokota
Summary: This study investigates the decay resistance and chemical changes in wood caused by decay by Fomitopsis palustris and Trametes versicolor in two tropical fast-growing tree species. The results show that the decay intensity and chemical component changes vary depending on the type of fungus.
CELLULOSE CHEMISTRY AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Yining Lin, Qiang Ge, Jinquan Wan, Yan Wang, Congyun Zhu
Summary: This paper investigates the performance of Fe-N-doped biochar as persulfate activators for wastewater treatment. The results show that the lignocellulosic and elemental compositions of the biomass feedstock significantly affect the catalytic activity of the prepared catalysts. Moreover, optimizing the pyrolysis temperature and time can improve the activation performance of Fe-N-biochar.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Review
Biochemistry & Molecular Biology
Odile Francesca Restaino, Concetta Valeria L. Giosafatto, Seyedeh Fatemeh Mirpoor, Marcella Cammarota, Sondos Hejazi, Loredana Mariniello, Chiara Schiraldi, Raffaele Porta
Summary: Posidonia oceanica (L.) Delile is a seagrass plant that forms large underwater meadows in the Mediterranean basin. Its decomposed leaves create protective banquettes on the coasts, while its root fragments accumulate as egagropili on the shoreline. These egagropili have potential applications in various fields, such as biotechnological processes, environmental decontamination, bioplastics, and construction materials.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Polymer Science
David Hentges, Philippe Gerardin, Pierre Vinchelin, Stephane Dumarcay
Summary: This study investigated the intraspecific macromolecule variation in different wood tissues of different tree species using analytical pyrolysis. The results showed that lignin determined via analytical pyrolysis-GC/MS can be used to identify variations in lignin content, and principal component analysis helped identify specific markers for different species, tissues, or heights.
Article
Chemistry, Applied
Han Zhang, Ming Liu, Yang Yang, Wei Chen, Jinjiao Zhu, Shihong Zhang, Haiping Yang, Hanping Chen, Yingquan Chen
Summary: A comprehensive examination of the interaction between holocellulose and lignin during secondary pyrolysis of biomass is crucial for optimizing pyrolysis products. In this study, a self-designed micro-pyrolysis device with a U-tube reactor was used to investigate the interaction between holocellulose and lignin model compounds. The study focused on the content and distribution of liquid/gaseous products to identify potential interaction reaction pathways. The results showed that the interaction between holocellulose and lignin enhanced the formation of furan products while inhibiting the conversion to anhydrous pyranose. The cleavage of methoxy groups on lignin model compounds played a significant role in their interaction with holocellulose. Phenolic hydroxyl groups on holocellulose monomers increased their activity, leading to specific cracking and condensation reactions with lignin model compounds.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Agronomy
Francois Maillard, Valentin Leduc, Chloe Viotti, Allison L. L. Gill, Emmanuelle Morin, Arnaud Reichard, Isabelle Ziegler-Devin, Bernhard Zeller, Marc Buee
Summary: In temperate forests, fungi play a crucial role in the decomposition of leaf litter. However, their influence on the chemical changes in leaf litter remains poorly understood. This study aimed to determine the main factors driving leaf litter chemical transformation during decomposition by conducting a long-term transplantation experiment.
Article
Forestry
A. Q. Nyrud, K. M. A. Heltorp, Anders Roos, Francisco X. Aguilar, Katja Lahtinen, Noora Viholainen, Sami Berghall, Anne Toppinen, B. J. Thorsen, Matleena Kniivila, Antti Haapala, Elias Hurmekoski, T. Hujala, H. F. Hoen
Summary: This study investigated public attitudes towards multi-storey wood buildings in seven European countries and found that the level of knowledge about wood buildings was lower in countries where brick, stone, and concrete were commonly used in construction, such as the United Kingdom, Germany, and Denmark. Finland and Sweden had the most positive attitudes towards wood buildings. The study also identified factors such as fire vulnerability, material solidity, indoor environment, and moisture vulnerability that influenced people's perception of wood buildings as a nice place to live.
SCANDINAVIAN JOURNAL OF FOREST RESEARCH
(2024)