Enhancing biohydrogen production from xylose through natural FeS < sub > 2 < /sub > ore: Mechanistic insights
This study shed light on the underlying mechanisms contributing to the improved performance of biohydrogen production from xylose during dark fermentation through the supplementation of natural FeS2 ore.PMID:38552859 | DOI:10.1016/j.biortech.2024.130632 (Source: Bioresource Technology)
Source: Bioresource Technology - March 29, 2024 Category: Biotechnology Authors: Yun Xu Miao-Yu Deng Si-Jia Li Yi-Cheng Yuan Hao-Yu Sun Quan Wang Rong-Ping Chen Lei Yu Source Type: research
Towards valorization of rice straw into bioethanol and lignin: Emphasizing critical role of deep eutectic solvent components in biorefining process
Bioresour Technol. 2024 Mar 27;399:130635. doi: 10.1016/j.biortech.2024.130635. Online ahead of print.ABSTRACTDeep eutectic solvents (DESs) offer a potential opportunity in biomass utilization industries. This work emphasized the impact of hydrogen bond donors (HBD) and acceptors (HBA) on deconstruction and valorization of rice straw. Acidity, alkyl chain length, hydrogen bonding ability and functional groups of HBD and HBA appeared to be important factors affecting the fractionated pulps and lignins, which further influenced ethanol fermentation. Among the candidate DESs, lactic acid/guanidine hydrochloride (LGH) was prov...
Source: Bioresource Technology - March 29, 2024 Category: Biotechnology Authors: Pengfei Zhao Fulong Pu Changsheng Su Yefan Wan Texin Huang Xuedan Hou Di Cai Source Type: research
Self-Buffering system for Cost-Effective production of lactic acid from glucose and xylose using Acid-Tolerant Issatchenkia orientalis
This study presents a cost-effective strategy for producing organic acids from glucose and xylose using the acid-tolerant yeast, Issatchenkia orientalis. I. orientalis was engineered to produce lactic acid from xylose, and the resulting strain, SD108XL, successfully converted sorghum hydrolysates into lactic acid. In order to enable low-pH fermentation, a self-buffering strategy, where the lactic acid generated by the SD108XL strain during fermentation served as a buffer, was developed. As a result, the SD108 strain produced 67 g/L of lactic acid from 73 g/L of glucose and 40 g/L of xylose, simulating a sugar composition o...
Source: Bioresource Technology - March 29, 2024 Category: Biotechnology Authors: Ye-Gi Lee Nam Kyu Kang Chanwoo Kim Vinh G Tran Mingfeng Cao Yasuo Yoshikuni Huimin Zhao Yong-Su Jin Source Type: research
Remediation of polycyclic aromatic hydrocarbons polluted soil by biochar loaded humic acid activating persulfate: performance, process and mechanisms
Bioresour Technol. 2024 Mar 27:130633. doi: 10.1016/j.biortech.2024.130633. Online ahead of print.ABSTRACTThe remediation for polycyclic aromatic hydrocarbons contaminated soil with cost-effective method has received significant public concern, a composite material, therefore, been fabricated by loading humic acid into biochar in this study to activate persulfate for naphthalene, pyrene and benzo(a)pyrene remediation. Experimental results proved the hypothesis that biochar loaded humic acid combined both advantages of individual materials in polycyclic aromatic hydrocarbons adsorption and persulfate activation, achieved sy...
Source: Bioresource Technology - March 29, 2024 Category: Biotechnology Authors: Yuxin Ke Xing Zhang Yuhang Ren Xiaoli Zhu Shaocheng Si Kou Bing Ziye Zhang Junqiang Wang Baoshou Shen Source Type: research
Reducing N < sub > 2 < /sub > O emissions from nitritation reactors under hypersaline conditions
This study focuses on nitrous oxide (N2O) emissions during hypersaline (4 % salinity) nitritation in continuously fed and mixed fixed bed reactors. In the presence of high concentrations of nitrite and ammonium, the percent yield of N2O emissions from ammonium removed decreased with increasing dissolved oxygen (DO). However, N2O production continued even at a high DO of 15 mg/L. Bulk ammonium concentration (not ammonia) was found to be the main controlling factor for N2O emissions under high and low DO during both nitritation and nitrification. Reducing bulk ammonium concentrations below 1 mg N/L in the nitritation reactor...
Source: Bioresource Technology - March 29, 2024 Category: Biotechnology Authors: Samah Abasi Sheldon Tarre Michal Green Source Type: research
Nitrite accumulation performance and microbial community of Algal-Bacterial symbiotic system constructed by Chlorella sp. And Navicula sp
Bioresour Technol. 2024 Mar 26;399:130638. doi: 10.1016/j.biortech.2024.130638. Online ahead of print.ABSTRACTChlorella sp. and Navicula sp. were separately used to construct an algal-bacterial symbiotic system in two identical sequencing batch reactors (R1 and R2) to explore the influence of algal species differences on nitrite accumulation. The Navicula-bacterial symbiotic system showed a higher nitrite accumulation efficiency of 85% and a stronger resistance to ammonia load. It secreted twice as many extracellular polymeric substances than the Chlorella-bacterial symbiotic system. Nitrospira and SM1A02 were the dominant...
Source: Bioresource Technology - March 28, 2024 Category: Biotechnology Authors: Xiangjing Yang Yonglin Liao Ming Zeng Yujie Qin Source Type: research
The significant contribution of comammox bacteria to nitrification in a constructed wetland revealed by DNA-based stable isotope probing
This study investigated the contributions of CMX and two canonical ammonia-oxidizing microorganisms, ammonia-oxidizing bacteria (AOB) and archaea to nitrification in four regions (sediment, shoreside, adjacent soil, and water) of a typical CW using DNA-based stable isotope probing. The results revealed that CMX not only widely occurred in sediment and shoreside zones with high abundance (5.08 × 104 and 6.57 × 104 copies g-1 soil, respectively), but also actively participated in ammonia oxidation, achieving ammonia oxidation rates of 1.43 and 2.00 times that of AOB in sediment and shoreside, respectively. Phylogenetic ana...
Source: Bioresource Technology - March 28, 2024 Category: Biotechnology Authors: Anqi Zhang Mingyang Zhu Yize Zheng Zhichao Tian Guangli Mu Maosheng Zheng Source Type: research
Bioprospecting of Chlamydomonas reinhardtii for boosting biofuel-related products production based on novel aggregation-induced emission active extracellular polymeric substances nanoprobes
This study can potentially open new strategies to boost microalgal-based biofuel production.PMID:38548032 | DOI:10.1016/j.biortech.2024.130636 (Source: Bioresource Technology)
Source: Bioresource Technology - March 28, 2024 Category: Biotechnology Authors: Yan Wang Yubing Hu Jiezhang Mo Tin Yan Wong Jingjing Liu Parodi Alessandro Ben Zhong Tang Wen-Xiong Wang Neng Yan Source Type: research
Leaching characteristics of nutrients in food waste digestate-derived biochar
This study investigated the leaching characteristics and speciation changes of nutrients in food waste digestate (FWD)-derived biochar pyrolyzed at 350 °C (BC350), 450 °C (BC450), and 550 °C (BC550). BC350 featured inorganic nitrogen, while BC450 and BC550 contained elevated organic nitrogen. Nitrogen, potassium, and dissolved organic carbon were released via a quick surface wash-off process. Polyphosphates prevailed in BC350 and leached through a fast diffusion-controlled process. BC450 and BC550 were dominated by Ca/Mg orthophosphates and released via a slow dissolution-controlled process. Leachates from BC450 and BC5...
Source: Bioresource Technology - March 28, 2024 Category: Biotechnology Authors: Xiaoxiao Zhang Yuqing Sun Qiaozhi Zhang Wenjing Tian Eakalak Khan Daniel C W Tsang Source Type: research
Nitrite accumulation performance and microbial community of Algal-Bacterial symbiotic system constructed by Chlorella sp. And Navicula sp
Bioresour Technol. 2024 Mar 26:130638. doi: 10.1016/j.biortech.2024.130638. Online ahead of print.ABSTRACTChlorella sp. and Navicula sp. were separately used to construct an algal-bacterial symbiotic system in two identical sequencing batch reactors (R1 and R2) to explore the influence of algal species differences on nitrite accumulation. The Navicula-bacterial symbiotic system showed a higher nitrite accumulation efficiency of 85% and a stronger resistance to ammonia load. It secreted twice as many extracellular polymeric substances than the Chlorella-bacterial symbiotic system. Nitrospira and SM1A02 were the dominant fun...
Source: Bioresource Technology - March 28, 2024 Category: Biotechnology Authors: Xiangjing Yang Yonglin Liao Ming Zeng Yujie Qin Source Type: research
The significant contribution of comammox bacteria to nitrification in a constructed wetland revealed by DNA-based stable isotope probing
This study investigated the contributions of CMX and two canonical ammonia-oxidizing microorganisms, ammonia-oxidizing bacteria (AOB) and archaea to nitrification in four regions (sediment, shoreside, adjacent soil, and water) of a typical CW using DNA-based stable isotope probing. The results revealed that CMX not only widely occurred in sediment and shoreside zones with high abundance (5.08 × 104 and 6.57 × 104 copies g-1 soil, respectively), but also actively participated in ammonia oxidation, achieving ammonia oxidation rates of 1.43 and 2.00 times that of AOB in sediment and shoreside, respectively. Phylogenetic ana...
Source: Bioresource Technology - March 28, 2024 Category: Biotechnology Authors: Anqi Zhang Mingyang Zhu Yize Zheng Zhichao Tian Guangli Mu Maosheng Zheng Source Type: research
Bioprospecting of Chlamydomonas reinhardtii for boosting Biofuel-Related product production based on novel Aggregation-Induced emission active extracellular polymeric substances nanoprobes
This study can potentially open new strategies to boost microalgal-based biofuel production.PMID:38548032 | DOI:10.1016/j.biortech.2024.130636 (Source: Bioresource Technology)
Source: Bioresource Technology - March 28, 2024 Category: Biotechnology Authors: Yan Wang Yubing Hu Jiezhang Mo Tin Yan Wong Jingjing Liu Parodi Alessandro Ben Zhong Tang Wen-Xiong Wang Neng Yan Source Type: research
Leaching characteristics of nutrients in food waste digestate-derived biochar
This study investigated the leaching characteristics and speciation changes of nutrients in food waste digestate (FWD)-derived biochar pyrolyzed at 350 °C (BC350), 450 °C (BC450) and 550 °C (BC550). BC350 featured inorganic nitrogen, while BC450 and BC550 contained elevated organic nitrogen. Nitrogen, potassium, and dissolved organic carbon were released via a quick surface wash-off process. Polyphosphates prevailed in BC350 and leached through a fast diffusion-controlled process. BC450 and BC550 were dominated by Ca/Mg orthophosphates and released via a slow dissolution-controlled process. Leachates from BC450 and BC55...
Source: Bioresource Technology - March 28, 2024 Category: Biotechnology Authors: Xiaoxiao Zhang Yuqing Sun Qiaozhi Zhang Wenjing Tian Eakalak Khan Daniel C W Tsang Source Type: research
Enhancing simultaneous saccharification and co-fermentation of corncob by Kluyveromyces marxianus through overexpression of putative transcription regulator
Bioresour Technol. 2024 Mar 24;399:130627. doi: 10.1016/j.biortech.2024.130627. Online ahead of print.ABSTRACTOverexpression of a gene with unknown function in Kluyveromyces marxianus markedly improved tolerance to lignocellulosic biomass-derived inhibitors. This overexpression also enhanced tolerance to elevated temperatures, ethanol, and high concentrations of NaCl and glucose. Inhibitor degradation and transcriptome analyses related this K. marxianusMultiple Stress Resistance (KmMSR) gene to the robustness of yeast cells. Nuclear localization and DNA-binding domain analyses indicate that KmMsr is a putative transcriptio...
Source: Bioresource Technology - March 24, 2024 Category: Biotechnology Authors: Kehui Zhang Ziyun Jiang Xingjiang Li Dongmei Wang Jiong Hong Source Type: research
Dual disintegration of microalgae biomass for cost-effective biomethane production: Energy and cost assessment
Bioresour Technol. 2024 Mar 24;399:130630. doi: 10.1016/j.biortech.2024.130630. Online ahead of print.ABSTRACTThe present study aims to enhance the biomethane production potential of microalgae via a dual disintegration process. During this process, the microalgae biomass was firstly subjected to cell wall weakening by thermochemical disintegration (TC) (50 to 80 °C), pH adjustment with alkali, NaOH (6 to 10) and time (0 to 10 min) and, secondly, by bacterial disintegration (BD). TC-BD disintegration was comparatively higher (33 %) than BD (24 %), TC (8.5 %), and control (7 %). A more significant VFA accumulation of 2816 ...
Source: Bioresource Technology - March 24, 2024 Category: Biotechnology Authors: Yukesh Kannah Ravi S Kavitha Siham Y Al-Qaradawi J Rajesh Banu Source Type: research
