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Maximizing biomass utilization: An integrated strategy for coproducing multiple chemicals

journal of Energy Chemistry 2025年第1期100卷 180-191页

作者： Byeongchan Ahn Sua jo jonggeol na J.Jay Liu Young-Ju Kim Wangyun Won Department of Chemical and Biological Engineering Korea University Department of Chemical Engineering (Integrated process) Kyung Hee University Department of Chemical Engineering and Materials Science Ewha Womans University Department of Chemical Engineering Pukyong National University Resources Engineering Plant Research Department Korea Institute of Geoscience and Mineral Resources

Lignocellulosic biomass is one of the viable solutions to alleviate the global warming. However, the limited utilization of biomass majorly focused on cellulose and hemicellulose restricts the economic and environmental feasibilities. To cope with this issue, we proposed an integrated process of co-producing 1,6-hexanediol（1,6-HDO） with tetrahydrofuran and adipic acid from biomass, referred to as Strategy A. To compare the impacts of lignin upgrading and feedstock, Strategy B, which co-produces tetrahydrofuran alone, and Strategy C, which is the traditional route to produce 1,6-HDO from fossil fuels, were used. Heat networks are also designed to reduce operating costs and indirect carbon emissions due to energy consumption, saving 87% and 83% of the heat and cooling requirements, respectively, in Strategy A. The market competitiveness of Strategy A was evaluated by determining the minimum selling price through techno-economic analysis, and sustainability was thoroughly investigated by quantifying the environmental impacts through both midpoint and endpoint life-cycle assessments（LCAs）.Strategy A was found to be the most favorable both economically（USRDSCHARDOLLAR3,402/ton） and environmentally（-26.9 kg CO2eq.）. This indicates that lignin valorization is not only economically but also environmentally preferred. Finally, changes in economic and environmental feasibilities depending on economic, process, and environmental parameters were investigated using sensitivity and uncertainty analyses. The results of these analyses provide valuable insight into bio-based chemical production.

关键词： Carbon capture and utilization

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Bee wax coated water-soluble fraction of bee venom improved altered glucose homeostasis in streptozotocin-induced diabetic rats

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journal of Traditional Chinese Medicine 2019年第6期39卷 842-852页

作者： Rangachari Balamurugan Jeong Hwa Kim Mi-na jo Chenglian Xue Jin kyu Park Jae Kwon Lee Department of Beesen Lab 204Beesen Co.Ltd.Bioventure TownYuseong Daero 1662Dae Jeon 34054Republic of Korea Department of Biology Education College of EducationChungbuk National UniversityCheongju 28644Republic of Korea

OBJECTIVE:To evaluate the anti-diabetic efficacy of orally administered bee wax coated water-soluble fraction of bee venom(BWCBVA)drug over orally administered bee wax(BW)and intraperitoneally administered whole bee venom(BV)in streptozotocin(STZ)-induced diabetic ***:Diabetes induced by intraperitoneal administration of 60 mg/kg STZ was treated with BWCBVA,BW,and BV for 21 *** biochemical,protein and histological changes,and physical characteristics of BWCBVA were then ***:The BWCBVA group shows significantly decreased blood glucose level as compared to the BW and intraperitoneally administered whole BV treated ***,BWCBVA significantly normalizes the serum biochemical parameters and increases the body ***,administration of BWCBVA significantly reverses the altered liver expression of phosphatidylinositide 3-kinases-p85 and liver *** analysis of the pancreas an increase in the islet cell numbers and decrease inβ-cell ***-administering BWCBVA 0.25 mg/kg with nifedipine(6.8 mg/kg)and nicorandil(13.8 mg/kg)to the diabetic rats results in insulin secretion through enhanced calcium ion *** performance liquid chromatography and gas chromatography was performed to identify the pharmacologically important compounds present in ***:Our results indicate that BWCBVA,an orally administered colon specific drug delivery system,can be effective in treating diabetes mellitus.

关键词： Diabetes Mellitus Waxes Bee venoms Streptozotocin

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Enhancement of vertical phase separation in sequentially deposited organic photovoltaics through the independent processing of additives

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journal of Energy Chemistry 2024年第7期94卷 768-777页

作者： Damin Lee Changwoo Park Gayoung Ham Young Yong Kim Sung-nam Kwon Junyeong Lee Sungjin jo Seok-In na Hyojung Cha Department of Hydrogen and Renewable Energy Kyungpook National UniversityDaegu 41566Republic of Korea Department of Energy Convergence and Climate Change Kyungpook National UniversityDaegu 41566Republic of Korea Pohang Accelerator Laboratory(PAL) Pohang University of Science and Technology(POSTECH)PohangGyeongbuk 37673Republic of Korea Department of Flexible and Printable Electronics Jeonbuk National UniversityJeonju-siJeollabuk-do 54896Republic of Korea School of Energy Engineering Kyungpook National UniversityDaegu 41566Republic of Korea

Herein,the impact of the independent control of processing additives on vertical phase separation in sequentially deposited (SD) organic photovoltaics (OPVs) and its subsequent effects on charge carrier kinetics at the electron donor-acceptor interface are *** film morphology exhibits notable variations,significantly depending on the layer to which 1,8-diiodooctane (DIO) was *** incidence wide-angle X-ray scattering analysis reveals distinctly separated donor/acceptor phases and vertical crystallinity details in SD ***-of-flight secondary ion mass spectrometry analysis is employed to obtain component distributions in diverse vertical phase structures of SD films depending on additive *** addition,nanosecond transient absorption spectroscopy shows that DIO control significantly affects the dynamics of separated charges in SD *** SD OPVs,DIO appears to act through distinct mechanisms with minimal restriction,depending on the applied *** study emphasizes the significance of morphological optimization in improving device performance and underscores the importance of independent additive control in the advancement of OPV technology.

关键词： Sequential deposition Vertical phase separation Charge dynamics Organic photovoltaics Nonfullerene acceptors

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Antiphospholipid syndrome with renal and splenic infarction after blunt trauma:A case report

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World journal of Clinical Cases 2022年第26期10卷 9404-9410页

作者： na-A Lee Eui-Sung Jeong Hyun-Seok Jang Yun-Chul Park Ji-Hyoun Kang Jung-Chul Kim Young-Goun jo Division of Trauma Department of SurgeryChonnam National University Medical School and HospitalGwangju 61469South Korea Division of Rheumatology Department of Internal MedicineChonnam National University Medical School and HospitalGwangju 61469South Korea

BACKGROUND In trauma patients,bleeding is an immediate major *** the same time,there are few cases of acute vascular occlusion after blunt trauma,and it is unclear what assessment and diagnosis should be considered for these ***,we describe a patient diagnosed with antiphospholipid syndrome after a hypercoagulable workup for acute renal and splenic vascular occlusion due to blunt *** SUMMARY A 20-year-old man was admitted to the emergency department with abdominal pain after hitting a tree while riding a sled 10 h *** had no medical *** investigations revealed occlusion of the left renal artery with global infarction of the left kidney and occlusion of branches of the splenic artery with infarction of the central portion of the *** revascularization of the left renal artery occlusion through percutaneous transluminal angioplasty failed due to difficulty in passing the wire through the total *** the presence of acute multivascular occlusions in a young man with low cardiovascular risk,additional laboratory tests were performed to evaluate *** results suggested a high possibility of antiphospholipid *** with a subcutaneous injection of enoxaparin was started and changed to oral warfarin after two *** diagnosis was confirmed,and he continued to visit the rheumatology outpatient clinic while taking *** A hypercoagulable workup can be considered in trauma patients with acute multivascular occlusion,especially in young patients with low cardiovascular risk.

关键词： Wounds and injuries Wounds Nonpenetrating Antiphospholipid syndrome Renal artery obstruction Splenic infarction Case reports

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Cloning and characterization of gene-resistant analogs(RGAs)involved in rust(Puccinia psidii) resistance in Eucalyptus grandis

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journal of Forestry Research 2015年第3期26卷 711-718页

作者： Marcelo Luiz Laia Acelino Couto Alfenas Sergio Hermínio Brommonschenkel Shinitiro Oda Eduardo josé de Melo Inaê Mariêde Araú jo Silva Janaína Fernandes Gonalves Ariadne Marques Departamento de Engenharia Florestal Universidade Federal dos Vales do Jequitinhonha e Mucuri DiamantinaMinas Gerais 39100-000 Brazil Departamento de Fitopatologia Universidade Federal de Viosa Viosa Minas Gerais 36570-900 Brazil Suzano Bahia Sul Celulose S/A Suzano So Paulo Brazil

Disease-resistant genes play an important role in defending against a variety of pathogens and insect pests in plants. Most of the disease-resistant genes encode pro- teins with conserved leucine rich repeat and nucleotide binding site domains. In this study, we cloned and char- acterized gene-resistant analogs （RGAs） from Eucalyptus grandis using degenerate PCR, with primers specifically targeting these two domains. The amplified fragments were cloned into the pGEM-T vector and transformed into Escherichia coli. Among the 90 clones obtained, 13 were sequenced and compared with each other and with previ- ously identified gene-resistant diseases. A BLASTX search in GenBank revealed high similarities among the con- served domains of these cloned genes with RGA genes. Some clones, however, showed no significant similarity with Dna sequences in GenBank. Southern blotting ana- lysis identified several polymorphic RFLP loci between distinct genotypes. However, none of them co-segregated with the Puccinia psidii Winter resistance gene 1 （Ppr1） in a population study.

关键词： Cloning Conserved domains RGAs Rust Eucalyptus

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Threats to Independence in Assurance of Sustainability Reports

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journal of Tourism and Hospitality Management 2018年第1期6卷 28-37页

作者： Janaína Borges de Almeida Wilde Gomes Araújo Federal University of Tocantins PalmasBrazil

A growing number of companies are submitting their sustainability reports to an external assurance ***,this fact is raising theoretical questions regarding the independence of the assurance *** this context,the objective of this work is to verify how it is possible to threat the independence in assurance of sustainability *** research is bibliographical and *** sustainability reports were analyzed from 2007 to *** case is the enterprise Vale *** result shows that there was no concomitant execution of audit and assurance services by the company;there are approaches to reporting independence,either in the title or in a specific paragraph;it exists an identification of the recipient,varying between board of directors,shareholders and other interested parties,nevertheless,throughout 2013-2014,there was no *** issued from 2013 to 2016 show that improvements need to be made by the assured *** in these cases is questionable,since the assurer may act as a consultant,which demonstrates management *** audit of the financial statements and assurance services may cause an impression of threats to independence;however,the results did not show it in the analyzed *** researches concerning assurance of sustainability reports independence are recommended.

关键词： independence assurance sustainability

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Separating component parts of soil respiration under Robinia pseudoacacia plantation in the Taihang Mountains,China

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journal of Forestry Research 2017年第3期28卷 529-537页

作者： na Zhao Ping Meng Xinxiao Yu College of Soil and Water Conservation Beijing Forestry University Research Institute of Forestry Chinese Academy of Forestry

Partitioning the respiratory components of soil surface CO2 efflux is important in understanding carbon turnover and in identifying the soil carbon sink/source function in response to land-use change. The sensitivities of soil respiration components on changing climate patterns are currently not fully understood. We used trench and isotopic methods to separate total soil respiration into autotrophic （RA） and heterotrophic components （RH）. This study was undertaken on a Robinia pseudoacacia L. plantation in the southern Taihang Mountains, China. The fractionation of soil ^13CO2 was analyzed by comparing the δ^13C of soil CO2 extracted from buried steel tubes with results from Gas Vapor Probe Kits at a depth of 50 *** the preliminary test （2.03‰）. The results showed that the contribution of autotrophic respiration （fra） increased with increasing soil *** contribution of heterotrophic respiration （fR/4） declined with increasing soil depth. The contribution of autotrophic respiration was similar whether estimated by the trench method （fra, 23.50%） or by the isotopic method in which a difference in value of ^13C between soil and plant prevailed in the natural state （RC, 21.03%）. The experimental error produced by the trench method was insignificant as compared with that produced by the isotopic method, providing a technical basis for further investigations.

关键词： Autotrophic respiration Heterotrophic respiration Isotopic method Trenched method

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大麝鼩韩国种群与俄罗斯远东种群之间的遗传分化:基于线粒体Cyt b基因的分析(英文)

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兽类学报 2014年第4期34卷 381-386页

作者： KOH Hung Sun SHEREMETIEVA Irina jo Jae Eun SIN Dong Soen KIM Jin Seong AN na Hyeon Department of Biology Chungbuk National UniversityCheongju 361-763Korea Institute of Biology and Soil Science Russian Academy of SciencesVladivostok 690022Russia

为重新分析韩国大麝鼩种群与相邻的俄罗斯远东种群之间的遗传分化情况,我们获得9条来自韩国4个地点和俄罗斯3个地点的大麝鼩线粒体细胞色素b基因(Cyt b)全序列,并将其与来自Gen Bank的4条Cyt b全序列和4条Cyt b部分序列进行比较。结果... 详细信息

为重新分析韩国大麝鼩种群与相邻的俄罗斯远东种群之间的遗传分化情况,我们获得9条来自韩国4个地点和俄罗斯3个地点的大麝鼩线粒体细胞色素b基因(Cyt b)全序列,并将其与来自Gen Bank的4条Cyt b全序列和4条Cyt b部分序列进行比较。结果发现韩国的大麝鼩并非只有一种基因型,因此,在利用Cyt b部分序列进行种群遗传学分析时需格外注意。基于Cyt b全序列分析,发现韩国的大麝鼩与俄罗斯远东地区的大麝鼩之间存在1.08%的平均JC距离和7个位点的差异,推测韩国的大麝鼩与俄罗斯远东地区的大麝鼩在包括末次冰盛期在内的很长时期都没有进行过遗传交流。目前的测序结果不支持当前认为大麝鼩为单系群的亚种分类理论,支持韩国大麝鼩是***亚种的分类理论,但还需进一步对中国东北地区的样品进行测序分析后才能最终确认。

关键词：生物地理学 Dna系统分类学 Cyt b基因大麝鼩韩国俄罗斯远东地区

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Anatomical distributional defects in mutant genes associated with dominant intermediate Charcot-Marie-Tooth disease type C in an adenovirus-mediated mouse model

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Neural Regeneration Research 2017年第3期12卷 486-492页

作者： Seo Jin Lee Sandesh Panthi Hyun Woo jo Jaeyoung Cho Min-Sik Kim na Young Jeong In Ok Song Junyang Jung Youngbuhm Huh Department of Biomedical Science Graduate SchoolKyung Hee UniversityDongdaemun-guSeoulKorea Department of Medicine Graduate SchoolKyung Hee UniversityDongdaemun-guSeoulKorea Department of Applied Chemistry College of Applied ScienceKyung Hee UniversityYongin-siGyeonggi-doKorea Department of Anatomy and Cell Biology College of MedicineDong-A UniversitySeo-guBusanKorea Department of Reproductive Endocrinology and Infertility Department of Obstetrics and GynecologyCheil General HospitalDankook University College of MedicineJung-guSeoulKorea Department of Anatomy and Neurobiology College of MedicineKyung Hee UniversityDongdaemun-guSeoulKorea

Dominant intermediate Charcot-Marie-Tooth disease type C（DI-CMTC） is a dominantly inherited neuropathy that has been classified primarily based on motor conduction velocity tests but is now known to involve axonal and demyelination ***-CMTC is linked to tyrosyl-t Rna synthetase（YARS）-associated neuropathies,which are caused by E196 K and G41 R missense mutations and a single de novo deletion（153-156 del VKQV）.It is well-established that these YARS mutations induce neuronal dysfunction,morphological symptoms involving axonal degeneration,and impaired motor *** present study is the first to describe a novel mouse model of YARS-mutation-induced neuropathy involving a neuron-specific promoter with a deleted mitochondrial targeting sequence that inhibits the expression of YARS protein in the *** adenovirus vector system and in vivo techniques were utilized to express YARS fusion proteins with a Flag-tag in the spinal cord,peripheral axons,and dorsal root *** transfection of YARS-expressing viruses,the distributions of wild-type（WT） YARS and E196 K mutant proteins were compared in all expressed regions; G41 R was not *** proportion of Flag/green fluorescent protein（GFP） double-positive signaling in the E196 K mutant-type mice did not significantly differ from that of WT mice in dorsal root ganglion *** adenovirus genes,and even the empty vector without the YARS gene,exhibited GFP-positive signaling in the ventral horn of the spinal cord because GFP in an adenovirus vector is driven by a cytomegalovirus *** present study demonstrated that anatomical differences in tissue can lead to dissimilar expressions of YARS ***,use of this novel animal model will provide data regarding distributional defects between mutant and WT genes in neurons,the DICMTC phenotype,and potential treatment approaches for this disease.

关键词： nerve regeneration tyrosyl-tRna synthetase YARS-associated neuropathy YARS mutation Charcot-Marie- Tooth Disease adenoviral vector-mediated mouse models neural regeneration

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Antibacterial activity and inhibition against Staphylococcus aureus NorA efflux pump by ferulic acid and its esterified derivatives

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Asian Pacific journal of Tropical Biomedicine 2021年第9期11卷 405-413页

作者： Patrícia Gonçalves Pinheiro Gilvandete Maria Pinheiro Santiago fra.cisco Erivaldo Freitas da Silva Ana Carolina Justino de Araújo Cícera Rejane Tavares de Oliveira Priscilla Ramos Freitas Janaína Esmeraldo Rocha joséBezerra de Araújo Neto Maria Milene Costa da Silva Saulo Relison Tintino Irwin Rose Alencar de Menezes Henrique Douglas Melo Coutinho joséGalberto Martins da Costa Departamento de Química Biológica Programa de Pos-Graduação em Química BiológicaUniversidade Regional do Cariri–URCACrato–CEBrazil Programa de Pós-Graduação em Química Centro de CiênciasUniversidade Federal do Ceará–UFCFortaleza–CEBrazil

Objective:To evaluate the inhibitory activity of ferulic acid and four of its esterified derivatives(methyl,ethyl,propyl,and butyl)against resistance mechanisms in Staphylococcus aureus ***:Ferulic acid derivatives were obtained by esterification with methanol,ethanol,propanol,and butanol,and then characterized by hydrogen and carbon-13 nuclear magnetic resonance *** minimum inhibitory concentrations(MIC)of ferulic acid and its esterified derivatives,ethidium bromide,and norfloxacin were obtained using the microdilution test,while the efflux pump inhibition test was conducted by examining reduction in the MICs of norfloxacin and ethidium *** docking was also carried out using the Schrodinger Suite 2015 molecular modeling software.A three-dimensional model of NorA efflux pump was generated using *** best scoring model was used as a receptor for ligand-receptor ***:The methyl and butyl ester derivatives did not demonstrate significant antimicrobial ***,a significant synergic effect was evidenced when norfloxacin was combined with the ethyl and propyl esterified *** docking study demonstrated favorable energy of interaction between ferulate derivatives and NorA,and amino acid residues TYR57,TYR58,and LEU255 were present commonly in stabilizing all *** PCA analysis corroborated the docking hypothesis that the lipophilic character and hydrogen bond interactions were the most relevant characteristics involved with NorA *** pharmacokinetic parameters of ferulic acid derivatives showed good ADMET properties,demonstrating that they can be easily absorbed and have no effect or inhibit the cytochrome P450 enzyme complex,revealing their potential as drug ***:This study provides strong evidence that the molecular basis for this activity is potentially due to the NorA efflux pump.

关键词： Ferulic acid Esterified derivatives Efflux pump Staphylococcus aureus Resistance mechanisms

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