Article
Agricultural Engineering
Zhenghui Liu, Enze Shi, Feng Ma, Kankan Jiang
Summary: The valorization of wheat straw for xylose and glucose recovery using maleic acid in the pretreatment was studied. Optimal conditions for xylose recovery were determined through response surface methodology. Enzymatic hydrolysis of maleic acid-pretreated wheat straw achieved high cellulose conversion and low degradation product, providing a strategy for fermentable sugars production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Weiqi Wei, Baoxian Wang, Xiaoxiang Wang, Rongxin Ling, Yongcan Jin
Summary: In this study, five acid or alkali catalyzed ethylene glycol (EG) organosolv pretreatments were proposed and compared for sugar production from bagasse. The results showed that EG/H2O-HCl pretreatment was more efficient for both hemicellulose and lignin remove, while EG/H2O-NaOH pretreatment was beneficial for lignin remove but weak for hemicellulose degradation. Both pretreatments have good capacity to reserve the cellulose in pretreated solids.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Keli Ye, Yanjun Tang, Danning Fu, Tianying Chen, Mian Li
Summary: In this study, magnesium oxide was used for pretreatment of corncob to improve lignin removal and enhance sugar yield through enzymatic hydrolysis. Under optimal conditions, a high glucose and xylose yield was obtained. This work contributes to improving the corncob pretreatment process and promoting its utilization.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Materials Science, Paper & Wood
Wei-Lun Lim, Ahmad Anas Nagoor Gunny, Farizul Hafiz Kasim, Subash C. B. Gopinath, Nor Helya Iman Kamaludin, Dachyar Arbain
Summary: This study investigates the feasibility of OA-ChCl DES as a green solvent for acidic DES hydrolysis, producing OA-ChCl DES CNC with nano-sized range and stable dispersion. The OA-ChCl DES CNC showed efficient cleavage of hydrogen bonds in pulp under acidic conditions and exhibited superior thermal stability compared to SA-CNC.
Article
Engineering, Environmental
Carmen Padilla-Rascon, Juan Miguel Romero-Garcia, Inmaculada Romero, Encarnacion Ruiz, Eulogio Castro
Summary: Olive stones are the main by-product of the olive oil industry, and this study proposes an integrated multiproduct biorefinery for their utilization. The operational conditions for producing high sugar recovery and lignin recovery were optimized, resulting in promising yields. Therefore, olive stones can be considered as a potential raw material for multiproduct biorefinery.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Agricultural Engineering
Dwi Ajias Pramasari, Maulida Oktaviani, Ahmad Thontowi, Awan Purnawan, Riksfardini Annisa Ermawar, Dewi Sondari, Riska Surya Ningrum, Raden Permana Budi Laksana, Adetya Lianawati, M. Zuvan Maulana Fahrezi, Qotrunnada Salsabila, Euis Hermiati
Summary: This study successfully extracted xylose from sugarcane trash through optimizing the acid hydrolysis process and further produced xylitol. The results show that using the hydrolysate in a stepwise and repeated manner can increase the concentration of xylose. Additionally, specific yeast strains were able to produce xylitol regardless of the presence of high concentrations of inhibitors.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Energy & Fuels
Phan Huy Hoang, Thai Dinh Cuong
Summary: A feasible catalytic process was developed for the simultaneous direct production of 5-hydroxymethylfurfural (HMF) and furfural from corncob biomass. By optimizing the conditions, the yields of HMF and furfural were significantly improved while the formation of levulinic acid was reduced.
Review
Biotechnology & Applied Microbiology
Angelo B. Banares, Grace M. Nisola, Kris Nino G. Valdehuesa, Won-Keun Lee, Wook-Jin Chung
Summary: This review discusses the causes of D-xylonic acid accumulation in metabolically engineered XOP-utilizing microorganisms, and how to address this issue through different engineering and synthetic biology techniques, with a focus on bacterial strains. Additionally, the ability of certain microorganisms to produce and tolerate D-xylonic acid is also examined as an important aspect in developing efficient microbial cell factories.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Agricultural Engineering
Zhen Zhu, Rong Huang, Shuangquan Yao, Yiruo Liu, Qibo Zhang, Xin Zhou, Kankan Jiang
Summary: In this study, sugarcane bagasse was pretreated using a renewable organic acid (xylonic acid) derived from the biooxidation of xylose. The effects of reaction temperature and time on the release of fermentable xylose and glucose were investigated. After optimization, a pretreatment with 1% xylonic acid at 190 degrees C for 30 min was selected, resulting in a release of 70% xylose and an enzymatic hydrolysis yield of 86.5%. The pretreated hydrolysate liquor was also shown to be suitable for xylonate production through the biooxidation of Gluconobacter oxydans. Additionally, the sequential process of xylonic acid pretreatment and saccharification provides a pathway for recycling lignin as value-added bioproducts. Overall, this study presents a green-like strategy for fully utilizing sugarcane bagasse.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Shanshan Xiong, Chao Luo, Zhihao Yu, Na Ji, Lingjun Zhu, Shurong Wang
Summary: The study developed a dual-functional carbon-based solid acid catalyst for the cascade conversion of saccharides, achieving high yields of levulinic acid and furfural. The catalyst exhibited excellent hydrothermal stability, with high conversion rates and low activation energy.
Article
Chemistry, Physical
Rui Li, Qixuan Lin, Yingxiong Wang, Weiran Yang, Xinxin Liu, Weiying Li, Xiaohui Wang, Xiaoying Wang, Chuanfu Liu, Junli Ren
Summary: Efficient conversion of glucose to pentose (xylose and arabinose) and formic acid was achieved using non-toxic artificial zeolite and green solvent of gamma-butyrolactone-H2O. The selective conversion of glucose to desired products was regulated by controlling Bronsted acid strength, offering a new approach to utilize glucose for expanding the varieties of platform chemicals.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Biotechnology & Applied Microbiology
Tai Man Louie, Kailin Louie, Samuel DenHartog, Sridhar Gopishetty, Mani Subramanian, Mark Arnold, Shuvendu Das
Summary: The study introduced a two-stage strategy for producing bio-xylitol from D-xylose using recombinant Pichia pastoris expressing a heterologous xylose reductase gene. The biotransformation was shown to be efficient with high conversion rates, and the whole cells could be reused without loss of activity. This method can be applied to other oxidoreductase reactions, demonstrating its potential for various industrial applications beyond xylitol production.
MICROBIAL CELL FACTORIES
(2021)
Article
Agricultural Engineering
Rodrigo Pagano Martins, Alison Andrei Schmatz, Lidyane Aline de Freita, Marcia Justino Rossini Mutton, Michel Brienzo
Summary: The study investigated the influence of different treatments on hemicellulose solubilization, xylose and glucose production from sweet sorghum bagasse, stalk, and leaves. Results showed that using 10% NaOH for pretreatment of bagasse and stalks resulted in the most effective hemicellulose solubilization, while biomasses pretreated with 10% H2O2 exhibited high enzymatic hydrolysis yield.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Energy & Fuels
A. Varilla-Mazaba, J. A. Raggazo-Sanchez, M. Calderon-Santoyo, S. del Moral, J. Gomez-Rodriguez, M. G. Aguilar-Uscanga
Summary: This study aimed to optimize the acid hydrolysis of sugarcane bagasse to obtain the maximum xylose and minimum acetic acid concentration. Response surface methodology and desirability criterion were used to find the optimal reaction conditions, which were validated through experiments.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Jinke Hu, Qiong Wang, Wen Wang, Zihan Xu, Juan Fu, Qingli Xu, Zhongming Wang, Zhenhong Yuan, Fei Shen, Wei Qi
Summary: SCPR140-1, a stable solid acid catalyst synthesized from chloromethyl polystyrene resin, showed high selectivity for xylose production and effectively deconstructed the structure of corncob during catalytic pretreatment. Compared to other similar reports, SCPR140-1 was not only synthesized through a simpler process but also demonstrated more stable catalytic activity during multiple recycling runs.
Article
Engineering, Chemical
Eddy Plasquy, Jose Maria Garcia Martos, Maria del Carmen Florido Fernandez, Rafael Ruben Sola-Guirado, Juan Francisco Garcia Martin
Summary: The study examines the use of warm water to warm up olives before grinding to maintain a desired temperature, which is crucial for high-quality oil extraction. Results show the feasibility of the method and potential for further automation to improve efficiency and quality in olive processing.
Review
Engineering, Chemical
Francisco Jose Sanchez-Borrego, Paloma Alvarez-Mateos, Juan F. Garcia-Martin
Summary: Bio-oil is a promising source of chemicals and renewable fuels that can replace fossil fuels and be produced through pyrolysis. It contains various value-added chemicals, such as aromatic compounds, suitable for a range of applications.
Editorial Material
Engineering, Chemical
Miguel Torres-Garcia, Paloma Alvarez-Mateos, Juan Francisco Garcia-Martin
Article
Food Science & Technology
Chao-Hui Feng, Chiko Otani, Yuichi Ogawa, Juan F. Garcia-Martin
Summary: The Terahertz time-domain spectroscopy (THz-TDS) system was used to analyze the spectral changes of sausage hog and sheep casings before and after casing modification, showing higher absorbances for modified cases. The drying process under nitrogen gas significantly reduced the drying time for natural hog casing made from soy oil.
Review
Engineering, Chemical
Eddy Plasquy, Jose Maria Garcia-Martos, Maria C. Florido, Rafael Ruben Sola-Guirado, Juan Francisco Garcia Martin
Summary: Research on cold storage of olive fruit has been conducted for over 50 years, with a focus on the physiological response and oil quality impact. The changing climate, new harvesting techniques, and consumer demands are expanding the need for diverse temperature management. Future prospects of research are based on the current state of cold storage research and broader fruit temperature management perspective.
Article
Food Science & Technology
Karine Cristine Kaufmann, Klicia Araujo Sampaio, Juan F. Garcia-Martin, Douglas Fernandes Barbin
Summary: The study demonstrates that coriander oil can be effectively distinguished from adulterated oils using principal component analysis, linear discriminant analysis, and k-nearest neighbors algorithm. The performance of Partial Least Squares regression models also shows their potential utility in quality control processes.
Article
Agronomy
Francisco-Jose Sanchez-Borrego, Noelia Garcia-Criado, Juan F. Garcia-Martin, Paloma alvarez-Mateos
Summary: This study investigates the pyrolysis of orange waste and orange pruning to produce biochar and bio-oil for high-added-value compounds. The obtained biochar showed potential for reducing the sulphur content in waste cooking oil.
Article
Plant Sciences
Francisco Jose Sanchez-Borrego, Tomas Juan Barea de Hoyos-Limon, Juan Francisco Garcia-Martin, Paloma Alvarez-Mateos
Summary: Olive stones can be valorized through pyrolysis to obtain biochar and bio-oil, with temperature being the key parameter affecting the product distribution. Impregnated olive stones result in higher amounts of high-added-value products. The specific surface area of biochar has an impact on the esterification yield.
Review
Chemistry, Analytical
Juan Francisco Garcia Martin
Summary: The physico-chemical parameters of olive oil quality can be effectively measured using near-infrared spectroscopy (NIRS), with high precision for several important parameters. NIRS is suitable for predicting nutritional contents and has the potential for analyzing other parameters, although further improvement of mathematical models is required.
Article
Engineering, Chemical
Sebastian Sanchez, Inmaculada Olivares, Juan G. Puentes, Rafael Orpez, M. Dolores La Rubia, Rafael Pacheco, Juan F. Garcia Martin
Summary: The addition of high-purity NMT improved the extraction yields and quality of olive oil, especially enhancing the content of antioxidant compounds and increasing the oxidative stability of the oil.
Editorial Material
Engineering, Chemical
Juan Francisco Garcia Martin, Miguel Torres Garcia, Paloma Alvarez Mateos
Review
Acoustics
Qing-An Zhang, Hongrong Zheng, Junyan Lin, Guangmin Nie, Xuehui Fan, Juan Francisco Garcia-Martin
Summary: As a non-thermal physical technology, ultrasound is widely used in various food processing operations, including filtration, freezing, thawing, sterilization, cutting, extraction, aging, etc. It is also applied in the processing of meat products, fruits and vegetables, and dairy products. However, there is a lack of systematic sorting and summarizing of the impact of ultrasound on different characteristics of wine. This review aims to systematically summarize the current achievements and problems of ultrasound application in winemaking, including extraction, fermentation, aging, and sterilization, and discuss its advantages, disadvantages, and future development.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Engineering, Chemical
Antonio Rosales Martinez, Juan F. Garcia-Martin, Ignacio Rodriguez-Garcia
Summary: Significant efforts have been made to develop sustainable reduction reactions for organic and bioorganic compounds, with the selection of reagents and solvents playing a crucial role. Cp2TiCl/H2O has emerged as a safe, efficient, selective, and low-cost reagent, offering a sustainable alternative for organic compound reduction. This study focuses on describing the intermediates, mechanisms, and representative examples to enhance understanding of reductions facilitated by this system. Future perspectives are discussed, including the use of its analog Cp2TiCl/D2O as a powerful tool for preparing deuterated phenols as internal standards for analyzing bioactive phenols in olive oil.
Article
Engineering, Chemical
Fangchen Ding, Changzhou Zuo, Juan Francisco Garcia-Martin, Yan Ge, Kang Tu, Jing Peng, Hongmei Xiao, Weijie Lan, Leiqing Pan
Summary: Different packaging materials, such as PVC, PE, and EPE, have significant effects on the near infrared (NIR) prediction of mango quality. The spectral interferences resulting from these materials can be reduced using spectral filtering methods. Combining spectral filtering with variable selection methods can further improve the prediction accuracy of mango quality parameters.
JOURNAL OF FOOD ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
Eddy Plasquy, Maria C. Florido, Rafael Ruben Sola-Guirado, Jose Maria Garcia Martos, Juan Francisco Garcia Martin
Summary: This study examined how the oxygen consumption and carbon dioxide production of olive fruit in a closed container varied at different temperatures, finding that olives may transition to anaerobic respiration quickly in high temperature environments.
FERMENTATION-BASEL
(2021)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
