Article
Plant Sciences
Santiago Linorio Ferreyra Ramos, Maria Teresa Gomes Lopes, Carlos Meneses, Gabriel Dequigiovanni, Jeferson Luis Vasconcelos de Macedo, Ricardo Lopes, Alexandre Magno Sebbenn, Rogerio Freire da Silva, Therezinha de Jesus Pinto Fraxe, Elizabeth Ann Veasey
Summary: This study evaluated the diversity and genetic structure of the natural populations of Astrocaryum aculeatum in the Brazilian Amazon and proposed conservation and management strategies. The study found high genetic diversity within populations and a moderate level of genetic structure potentially influenced by historical events.
Review
Food Science & Technology
Ana Paula da Fonseca Machado, Roberto de Paula do Nascimento, Mariana da Rocha Alves, Livia Mateus Reguengo, Mario Roberto Marostica Junior
Summary: Latin America boasts a variety of native plants, including the Astrocaryum genus, which have potential medicinal and technological uses. Two native Brazilian fruits, tucuma-do-Amazonas and tucuma-do-Para, are rich in antioxidants and bioactive compounds, showing promise in preventing and treating diseases. Additionally, tucuma plants have potential industrial applications such as biofuel production and alternative packaging materials.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Agricultural Engineering
Rahmad Mohd Taib, Nurhayati Abdullah, Nur Syairah Mohamad Aziz
Summary: This study investigated the fast pyrolysis of banana pseudo-stem (BPS) to determine the optimal conditions for maximum liquid yield, finding that a pyrolysis temperature of 500°C and a residence time of 1.02 s were ideal. Under these conditions, a total liquid yield of 39.4% was achieved, with a high heating value of approximately 5.35 MJ/kg for the BPS liquid obtained. The BPS bio-oil was found to contain common functional groups and chemical compounds related to phenols.
BIOMASS & BIOENERGY
(2021)
Review
Chemistry, Analytical
Dengle Duan, Danhong Chen, Liyin Huang, Yongchuan Zhang, Yayun Zhang, Qin Wang, Gengsheng Xiao, Weili Zhang, Hanwu Lei, Roger Ruan
Summary: Activated carbon (AC) is widely used in various important fields, and the conversion of renewable lignocellulosic biomass (LB) is an economical and environmentally friendly way to produce AC. This review summarizes the effects of various process parameters on AC production and discusses the properties and characteristics of AC derived from LB, as well as its application in fast catalytic pyrolysis processes. Comparisons of catalytic performance between LB-derived AC, commercial AC, and zeolite-based catalysts for upgrading bio-oil are also investigated in this study.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Materials Science, Textiles
Antonio Claudio Kieling, Genilson Pereira Santana, Maria Cristina Dos Santos, Jose Costa De Macedo Neto, Gilberto Garcia Del Pino, Marcos Dantas Dos Santos, Sergio Duvoisin Jr, Tulio Hallak Panzera
Summary: The study investigated a novel wood-plastic composite made from recycled polypropylene and Tucuma endocarp powder without coupling agents, which addresses social and environmental issues. The addition of Tucuma endocarp powder can increase the elastic modulus and dynamic friction coefficient, while reducing the strength and burning rate, showing potential for sustainable engineering applications.
FIBERS AND POLYMERS
(2021)
Article
Chemistry, Applied
Priscila Marquezan Copetti, Samanta da Silva Gundel, Pablo Sebastian Britto de Oliveira, Fernanda Reis Favarin, Andiara Prates Ramos, Francieli Guedes Pintos, Lauren Pappis, Andre Guendel, Alencar Kolinski Machado, Aline Ferreira Ourique, Michele Rorato Sagrillo
Summary: The objective of this study was to produce and characterize nanoemulsions containing tucuma extract and evaluate their performance in terms of antitumor activity, cytotoxicity, and oxidative metabolism. The results showed that the nanoemulsions had desirable physicochemical characteristics, remained stable during storage, and exhibited better antileukemic effects compared to free extract. Therefore, nanoemulsions have the potential to be promising carriers of natural compounds for disease treatment.
NATURAL PRODUCT RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Benjamin Caudle, Victor D. Brandao, Maximilian B. Gorensek, Chau-Chyun Chen
Summary: A model for fluidized-bed pyrolysis of biomass is extended to simulate intensified autothermal operation. By replacing the external heat source with partial oxidation of char and pyrolysate species, the throughput of a given reactor is significantly increased. Experimental results show that the biomass throughput can be increased by about 3 times with minimal loss of valuable products.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Analytical
Farah Amalina, Santhana Krishnan, A. W. Zularisam, Mohd Nasrullah
Summary: The scarcity of fossils and the environmental problems associated with their production has increased the demand for sustainable alternatives. Microwave-assisted pyrolysis (MAP) of biomass is a highly sustainable and renewable method for producing bio-oil and value-added products. This paper evaluates the parameters influencing MAP yields and suggests the use of Response Surface Methodology (RSM) through the Central Composite Design (CCD) method for optimizing MAP systems. The study highlights the need for a comprehensive investigation of various factors and the construction of an optimized MAP system at the pilot scale for commercialization.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Green & Sustainable Science & Technology
Flavio A. de Freitas, Igor R. S. Mendonca, Silma de S. Barros, Wanison G. A. Pessoa Jr, Ingrity S. C. Sa, Larissa B. Gato, Edson P. Silva, Marco A. S. Farias, Francisco X. Nobre, Paulo J. S. Maia, Stefan Iglauer, Kaori K. Y. Isla
Summary: This study aimed to utilize the electrolytic paste of spent AA batteries as a catalyst for biodiesel production. The heat-treated electrolytic paste showed higher catalytic activity and achieved good conversion rates in esterification reactions. The results suggest that the utilization of waste batteries can be a potentially efficient and eco-friendly method for biodiesel production.
Article
Energy & Fuels
Jaskaran Singh Malhotra, Roudabeh Valiollahi, Henrik Wiinikka
Summary: Introducing carbon-based electrode materials into the value chain of biorefinery can potentially increase profits. In this study, carbon-based supercapacitor electrode materials were synthesized by chemically activating bio-oil and bio-char precursors, resulting in hierarchical porous structures with high surface areas. These materials exhibited nearly double the specific capacitance compared to commercially available activated carbon. Using bio-oil as the precursor offered the advantage of lower metal impurities and slightly better energy storage performance than bio-char. Additionally, a normalized energy storage value was presented for each material to aid in selecting the best economic route for the concept.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Green & Sustainable Science & Technology
Arvind Nanduri, Shreesh S. Kulkarni, Patrick L. Mills
Summary: This review highlights recent advances in experimental techniques for probing gas-phase reactive/stable intermediates in fast pyrolysis and catalytic fast pyrolysis of lignocellulosic biomass, including isotopic labeling studies and advanced analytical systems. The discussion focuses on the molecular-level mechanistic information provided by these methods and compares similarities in hydrocarbon pool species formed during methanol-to-olefins and biomass fast pyrolysis.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Engineering, Environmental
Liqiang Lu, Xi Gao, Aytekin Gel, Gavin M. Wiggins, Meagan Crowley, Brennan Pecha, Mehrdad Shahnam, William A. Rogers, James Parks, Peter N. Ciesielski
Summary: Building an accurate universal model for biomass pyrolysis is challenging due to its sensitivity to critical material attributes such as chemical species and physical sizes. This study implemented a biomass pyrolysis kinetics in an open-source CFD software, validated against experimental data, and showed sensitivity of pyrolysis yields to feedstock compositions through a reaction scheme with heterogeneous reactions and species. The study's results can guide the development of accurate models for fast pyrolysis reactors under various operating conditions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Matheus Henrique Jantsch, Viviane Martins Bernardes, Juliana Sorraila Oliveira, Daniela Ferreira Passos, Guilherme Lopes Dornelles, Alessandra Guedes Manzoni, Fernanda Licker Cabral, Jean Lucas Gutknecht da Silva, Maria Rosa Chitolina Schetinger, Daniela Bitencourt Rosa Leal
Summary: This study demonstrated that Tucuma extract can prevent memory loss and oxidative damage caused by induced hyperlipidemia in rats, suggesting a neuroprotective effect and nutraceutical potential. The findings offer a potential therapy for preventing brain diseases and improving overall health through the consumption of Tucuma.
JOURNAL OF FOOD BIOCHEMISTRY
(2021)
Article
Chemistry, Medicinal
Beatriz da Silva Rosa Bonadiman, Claudia Chaves, Charles Elias Assmann, Grazielle Castagna Cezimbra Weis, Audrei de Oliveira Alves, Amanda Leitao Gindri, Claudio Chaves, Ivana Beatrice Manica da Cruz, Ariane Zamoner, Margarete Dulce Bagatini
Summary: Tucuma, an important Amazon fruit, has been shown to have a relevant chemical matrix rich in antioxidant molecules, which could significantly contribute to improving human health conditions. Research suggests that Tucuma extract can reduce oxidative and molecular damage, as well as maintain DNA integrity in retinal pigment epithelium (RPE) cells.
JOURNAL OF MEDICINAL FOOD
(2021)
Article
Polymer Science
Antonio Claudio Kieling, Jose Costa de Macedo Neto, Gilberto Garcia del Pino, Ricardo da Silva Barboza, Francisco Rolando Valenzuela Diaz, Jose Luis Valin Rivera, Meyli Valin Fernandez, Cristobal Galleguillos Ketterer, Alvaro Gonzalez Ortega, Roberto Iquilio Abarzua
Summary: Composites with natural lignocellulosic fillers are being explored as sustainable alternatives to conventional materials due to their lower costs and weight. This study investigates a new composite material made of epoxy resin, powdered tucuma endocarp, and kaolin, aiming to reduce environmental impact. The samples were characterized using SEM and FTIR, and mechanical properties were determined. The results showed an interaction between the components and reduced mechanical properties, making these composites suitable for sustainable engineering applications with lower mechanical strength requirements.
Article
Chemistry, Analytical
Guanshuai Zhang, Shanjian Liu, Dongmei Bi, Zhisen He, Jia Liu, Yinjiao Liu
Summary: Hydrogen peroxide pretreatment was applied for fast pyrolysis of corn stalks, and it was found that the pretreatment effectively promoted lignin depolymerization and decreased the reaction activation energy. The pretreatment also increased the cellulose content and removed alkali and alkaline earth metals from the biomass. The pH of the hydrogen peroxide solution affected the removal of lignin and ash by the pretreatment, and the composition of bio-oil changed significantly, with a significant increase in the relative content of levoglucosan after pretreatment.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2024)
