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Lee JW, Choi EJ, Ryu WB, Hong GP. Characterization of temperature-dependent subcritical water hydrolysis pattern of strong and floury rice cultivars and potential utilizations of their hydrolysates. Food Chem 2024; 445:138737. [PMID: 38350199 DOI: 10.1016/j.foodchem.2024.138737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 01/16/2024] [Accepted: 02/09/2024] [Indexed: 02/15/2024]
Abstract
This study investigated the effects of subcritical water (SW) temperatures on the hydrolysis pattern and characteristics of hydrolysates prepared with strong rice (SR) and floury rice (FR). The characteristics of the hydrolysates were generally dependent on the rice cultivar in the SW temperature range of 150-250 °C, while the cultivar dependence was diminished at temperatures greater than 300 °C. Based on brix and reducing sugar content, an optimal production of rice hydrolysates was obtained at a SW temperature range of 200-250 °C. However, thermal conversion of sugar into acids, 5-hydroxymethylfurfural (HMF) and furfural was manifested at 250 °C. The rice hydrolysates prepared at 250 ∼ 300 °C had the highest antioxidant activity with strong umami intensity, but they suppressed the growth of prebiotics. Therefore, the present study demonstrated that controlling the SW temperature is crucial to improve rice hydrolysis efficiency and to regulate the physiological activity of the hydrolysates.
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Affiliation(s)
- Jong Won Lee
- Department of Food Science and Biotechnology, and Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, South Korea
| | - Eun Jung Choi
- R&D Research Center, Life Salad Inc., Seoul 03909, South Korea
| | - Wang Bo Ryu
- R&D Research Center, Life Salad Inc., Seoul 03909, South Korea
| | - Geun-Pyo Hong
- Department of Food Science and Biotechnology, and Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, South Korea.
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Alonso-Riaño P, Illera AE, Benito-Román O, Melgosa R, Bermejo-López A, Beltrán S, Sanz MT. Degradation kinetics of sugars (glucose and xylose), amino acids (proline and aspartic acid) and their binary mixtures in subcritical water: Effect of Maillard reaction. Food Chem 2024; 442:138421. [PMID: 38244443 DOI: 10.1016/j.foodchem.2024.138421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/22/2023] [Accepted: 01/10/2024] [Indexed: 01/22/2024]
Abstract
A systematic kinetic study was conducted in subcritical water medium in the temperature range from 150 to 200 °C for pure glucose, xylose, proline and aspartic acid as well as binary mixtures of sugars + amino acids to understand the reaction kinetics and interactions among biomass components and to discern the influence of Maillard reaction (MR) on the overall reaction kinetics. The main degradation products identified for glucose and xylose were the respective dehydration products, hydroxymethyl furfural and furfural, yielding an increasing solid residue with temperature (15.9 wt% at 200 °C) with an augmented heating value. The degradation of sugars and amino acids in binary systems was faster compared to pure compounds due to MR and the production of dehydration products was delayed when considering total sugar conversion. Higher relative reactivity in MR was observed for xylose over glucose showing also higher antioxidant activity.
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Affiliation(s)
- P Alonso-Riaño
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - A E Illera
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - O Benito-Román
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - R Melgosa
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - A Bermejo-López
- Department of Chemical Engineering, Faculty of Science and Technology, University of the Vasque Country UPV/EHU, Barrio Sarriena, s/n, 48940 Leioa, Bizkaia, Spain
| | - S Beltrán
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - M T Sanz
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain.
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Girimonte A, Stefani A, Mucci C, Giovanardi R, Marchetti A, Innocenti M, Fontanesi C. Electrochemical Performance of Metal-Free Carbon-Based Catalysts from Different Hydrothermal Carbonization Treatments for Oxygen Reduction Reaction. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:173. [PMID: 38251138 PMCID: PMC10820196 DOI: 10.3390/nano14020173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/07/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
This research investigates the difference between products obtained through two hydrothermal carbonization treatments. Our aim is to synthesize metal-free, carbon-based catalysts for the oxygen reduction reaction (ORR) to serve as efficient and cost-effective alternatives to platinum-based catalysts. Catalysts synthesized using the traditional hydrothermal approach exhibit a higher electrocatalytic activity for ORR in alkaline media, despite their more energy-intensive production process. The superior performance is attributed to differences in the particle morphology and the chemical composition of the particle surfaces. The presence of functional groups on the surfaces of catalysts obtained via a traditional approach significantly enhances ORR activity by facilitating deprotonation reactions in an alkaline environment. Our research aims to provide a reference for future investigations, shifting the focus to the fine-tuning of surface chemical compositions and morphologies of metal-free catalysts to enhance ORR activity.
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Affiliation(s)
- Aldo Girimonte
- Department of Engineering, DIEF, University of Modena and Reggio Emilia, via Vivarelli 10, 41125 Modena, Italy; (A.G.); (C.M.); (R.G.)
| | - Andrea Stefani
- Department of Physics, FIM, University of Modena and Reggio Emilia, via Campi 213, 41125 Modena, Italy;
| | - Clara Mucci
- Department of Engineering, DIEF, University of Modena and Reggio Emilia, via Vivarelli 10, 41125 Modena, Italy; (A.G.); (C.M.); (R.G.)
| | - Roberto Giovanardi
- Department of Engineering, DIEF, University of Modena and Reggio Emilia, via Vivarelli 10, 41125 Modena, Italy; (A.G.); (C.M.); (R.G.)
| | - Andrea Marchetti
- Department of Chemical and Geological Science, DSCG, University of Modena and Reggio Emilia, via Campi 103, 41125 Modena, Italy;
| | - Massimo Innocenti
- Department of Chemistry, “Ugo Schiff”, University of Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy;
- National Interuniversity Consortium of Materials Science and Technology (INSTM), via G. Giusti 9, 50121 Firenze, Italy
| | - Claudio Fontanesi
- Department of Engineering, DIEF, University of Modena and Reggio Emilia, via Vivarelli 10, 41125 Modena, Italy; (A.G.); (C.M.); (R.G.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), via G. Giusti 9, 50121 Firenze, Italy
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Boucard H, Weiss-Hortala E, Gueye F, Espitalier F, Barna R. Insights in mechanisms of carbonaceous microparticles formation from black liquor hydrothermal conversion. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104817] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pipitone G, Zoppi G, Frattini A, Bocchini S, Pirone R, Bensaid S. Aqueous phase reforming of sugar-based biorefinery streams: from the simplicity of model compounds to the complexity of real feeds. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.09.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hydrothermal Carbon/Carbon Nanotube Composites as Electrocatalysts for the Oxygen Reduction Reaction. JOURNAL OF COMPOSITES SCIENCE 2020. [DOI: 10.3390/jcs4010020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The oxygen reduction reaction is an essential reaction in several energy conversion devices such as fuel cells and batteries. So far, the best performance is obtained by using platinum-based electrocatalysts, which make the devices really expensive, and thus, new and more affordable materials should be designed. Biomass-derived carbons were prepared by hydrothermal carbonization in the presence of carbon nanotubes with different oxygen surface functionalities to evaluate their effect on the final properties. Additionally, nitrogen functional groups were also introduced by ball milling the carbon composite together with melamine. The oxygen groups on the surface of the carbon nanotubes favor their dispersion into the precursor mixture and the formation of a more homogenous carbon structure with higher mechanical strength. This type of structure partially avoids the crushing of the nanotubes and the carbon spheres during the ball milling, resulting in a carbon composite with enhanced electrical conductivity. Undoped and N-doped composites were used as electrocatalysts for the oxygen reduction reaction. The onset potential increases by 20% due to the incorporation of carbon nanotubes (CNTs) and nitrogen, which increases the number of active sites and improves the chemical reactivity, while the limiting current density increases by 47% due to the higher electrical conductivity.
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Rey-Raap N, Enterría M, Martins JI, Pereira MFR, Figueiredo JL. Influence of Multiwalled Carbon Nanotubes as Additives in Biomass-Derived Carbons for Supercapacitor Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:6066-6077. [PMID: 30652469 DOI: 10.1021/acsami.8b19246] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Glucose-derived carbon/carbon nanotube (CNT) hybrid materials were prepared by hydrothermal carbonization of glucose in the presence of CNTs and subsequent carbonization, physical activation, or chemical activation. The proportion of CNTs added during the hydrothermal polymerization of glucose was varied to ascertain the optimum dose to maximize the performance of the carbon hybrids in supercapacitor applications. Both the thermal treatment applied and the addition of CNTs lead to changes in the textural and chemical properties of the activated carbons. It was observed that samples bearing CNTs exhibit higher number of nucleation centers for glucose oligomers to polymerize, and consequently, the behavior of the hydrothermal carbon toward activation differs according to the activating agent employed. Moreover, the initial chemical speciation dominated by acidic groups shifts to more basic functionalities (quinones and carbonyl groups) with the addition of CNTs. The effect of the different physicochemical properties of the prepared carbons on their electrochemical behavior was evaluated. The addition of 2 wt % of CNTs and subsequent chemical activation leads to electrode materials yielding 206 F g-1 and 78% of capacitance retention up to 0.8 V and 20 A g-1 and high rate cyclability (97% after 5000 cycles). The outstanding performance is ascribed to the high surface area, narrow mesopores, and phenol/carbonyl surface functionalities, which enhance molecular diffusion, the amount of stored energy, and electronic transportation, respectively.
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Affiliation(s)
| | | | - José Inácio Martins
- Lab2PT, Instituto de Ciências Sociais , Universidade do Minho , 4710-057 Braga , Portugal
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Jamale T, Dhokare A, Satpute K, Kulkarni R, Usulumarty D, Vishwanath B, Noronha S, Hase N. Epidemic of Chemical Peritonitis in Patients on Continuous Ambulatory Peritoneal Dialysis: A Report from Western India. Perit Dial Int 2016; 36:347-9. [PMID: 27230600 DOI: 10.3747/pdi.2015.00055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
While non-infectious etiologies like chemical irritants are rare causes of epidemics of peritonitis, this possibility should be considered when one encounters an unusual clustering of peritonitis cases. We describe here an epidemic of chemical peritonitis at our center.
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Affiliation(s)
- Tukaram Jamale
- Nephrology, Seth GS Medical college, KEM Hospital, Mumbai, India
| | | | - Kushal Satpute
- Chemical Engineering, Indian Institute of Technology, Mumbai, India
| | - Renu Kulkarni
- Chemical Engineering, Indian Institute of Technology, Mumbai, India
| | - Deepa Usulumarty
- Nephrology, Bombay Hospital Institute of Medical Sciences, Mumbai, India
| | - Billa Vishwanath
- Nephrology, Bombay Hospital Institute of Medical Sciences, Mumbai, India
| | - Santosh Noronha
- Chemical Engineering, Indian Institute of Technology, Mumbai, India
| | - Niwrutti Hase
- Nephrology, Seth GS Medical college, KEM Hospital, Mumbai, India
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Purnomo A, Yudiantoro YAW, Putro JN, Nugraha AT, Irawaty W, Ismadji S. Subcritical water hydrolysis of durian seeds waste for bioethanol production. INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY 2015. [DOI: 10.1007/s40090-015-0059-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Brunner G. Processing of Biomass with Hydrothermal and Supercritical Water. HYDROTHERMAL AND SUPERCRITICAL WATER PROCESSES 2014. [DOI: 10.1016/b978-0-444-59413-6.00008-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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12
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Huang C, Long Z, Miyauchi M, Qiu X. A facile one-pot synthesis of Cu–Cu2O concave cube hybrid architectures. CrystEngComm 2014. [DOI: 10.1039/c4ce00250d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel Cu–Cu2O concave cube hybrid architectures were preparedviaa facile solution method.
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Affiliation(s)
- Caijin Huang
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002, China
| | - Zhen Long
- State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials
- Southwest University of Science and Technology
- Mianyang 621010, China
| | - Masahiro Miyauchi
- Department of Metallurgy and Ceramic Science
- Tokyo Institute of Technology
- Meguro-ku, 152-8552 Japan
| | - Xiaoqing Qiu
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002, China
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13
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Yu-Wu QM, Weiss-Hortala E, Barna R. Hydrothermal conversion of glucose in multiscale batch processes. Analysis of the gas, liquid and solid residues. J Supercrit Fluids 2013. [DOI: 10.1016/j.supflu.2013.03.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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