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formation mechanisms of ethyl acetate and organic acids in Kluyveromyces marxianus L1-1 in Chinese acid rice soup

Food Science and Human Wellness 2023年第1期12卷 45-56页

作者： Na Liu Likang Qin Laili Hu Song Miao School of Liquor and Food Engineering Guizhou UniversityGuiyang 550025China Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education) Collaborative Innovation Center for Mountain Ecology&Agro-bioengineering(CICMEAB)College of Life Sciences/Institute of Agro-bioengineeringGuizhou UniversityGuiyang 550025China Teagasc Food Research Centre MooreparkFermoyCo.Cork P61 C996Ireland

This study aims to explore the formation mechanism of ethyl acetate and organic acids in acid rice soup(rice-acid soup)inoculated with Kluyveromyces marxianus L1-1 through the complementary analysis of transcriptome and *** quantity of *** L1-1 varied significantly in the fermentation process of rice-acid soup and the first and third days were the two key turning points in the growth phase of *** ***,the concentrations of ethyl acetate,ethanol,acetic acid,and L-lactic acid increased from day 1 to day *** least 4231 genes and 2937 proteins were identified and 610 differentially expressed proteins were annotated to 30 Kyoto Encyclopedia of Genes and Genomes(KEGG)pathways based on the analysis results of transcriptome and *** key genes and proteins including up-regulated alcohol dehydrogenase family,alcohol O-acetyltransferase,acetyl-CoA C-acetyltransferase,acyl-coenzyme A thioester hydrolase,and down-regulated aldehyde dehydrogenase family were involved in glycolysis/gluconeogenesis pathways,starch and sucrose metabolism pathways,amino sugar and nucleotide sugar metabolism pathways,tricarboxylic acid(TCA)cycle,and pyruvate metabolism pathways,thus promoting the formation of ethyl acetate,organic acids,alcohols,and other *** results revealed the formation mechanisms of ethyl acetate and organic acids in rice-acid soup inoculated with *** L1-1.

关键词： Kluyveromyces marxianus Fermented rice soup Ethyl acetate Organic acid formation mechanism

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Design to enhance sensing performance of ZIF-8 crystals

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Progress in Natural Science:Materials International 2024年第2期34卷 240-250页

作者： Ya-Ru Li Xiuxiu Dong Shu-Yi Pan Lin Luo Hong-Tao Lei Zhen-Lin Xu Guangdong Provincial Key Laboratory of Food Quality and Safety College of Food Science South China Agricultural University Key Laboratory of Modern Agricultural Equipment and Technology (Jiangsu University) Ministry of Education School of Agricultural Engineering Jiangsu University

Metal-organic frameworks（MOFs） are a large class of crystalline porous materials that composed of organic ligands and metal ions,of which zeolitic imidazolate frameworks（ZIFs） are a broad *** most wellknown ZIF-like material is ZIF-8 crystals,which have been the subject of extensive research for ***-8 crystals have been synthesized under various conditions for application in the fields of sensing,drug delivery,and *** paper provides a brief introduction to the preparation methods,formation processes,and formation mechanisms of ZIF-8 crystals in different media,and then explains the effects of different precursor conditions(type of Zn2+,ratio of raw materials,and type of solvent) on ZIF-8 crystals in terms of formation ***,current reports on the application of ZIF-8-based chemiresistive gas sensors,electrochemical,fluorescent and colorimetric sensors are also ***,ZIF-8 crystals with good catalytic properties will be obtained based on rational design for promoting the application in different fields of the sensors.

关键词： formation mechanism Regulation Sensing performance Synthesis method ZIF-8

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Transition metals for stabilizing lithium metal anode:advances and perspectives

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Tungsten 2024年第1期6卷 212-229页

作者： Si-Cheng Miao Ye Jia Zhi-Wen Deng Yan Deng Ruo-Xuan Chen Xue-Mei Zhang Chang-Haoyue Xu Meng Yao Wen-Long Cai Department of Advanced Energy Materials College of Materials Science and EngineeringSichuan UniversityChengdu 610064China

As the capacity of lithium-ion batteries gradually reaches its limit,the high-capacity characteristics of lithium metal batteries(LMBs)make them one of the most promising electrochemical energy storage devices ***,uncontrolled lithium dendrite growth can cause poor cell performance and severe safety issues,seriously slowing down the commercialization of *** metals(TMs)are lithiophilic materials that effectively stabilize lithium metal anode(LMA)and inhibit dendrite ***,the growth of lithium dendrites and the performance of TMs in stabilizing lithium metals are comprehensively discussed in this ***,we elucidated the formation mechanisms of lithium dendrite,and we put forward several strategies to suppress lithium dendrite formation based on the understanding of these ***,the application of TMs and their compounds to stabilize LMA and their corresponding mechanisms are comprehensively ***,further research perspectives of TMs in stabilizing LMA are emphasized in detail.

关键词： Transition metals Lithium metal batteries Lithium dendrite Solid electrolyte interphase formation mechanism

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Characterization and formation mechanisms of fractures and their significance to hydrocarbon accumulation: A case study of Lower Ordovician mid-assemblage formations in central Ordos Basin, China

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Journal of Central South University 2018年第11期25卷 2766-2784页

作者： ZHAO Zi-long ZHAO Jing-zhou REN Hai-jiao LI Jun WU Wei-tao State Key Laboratory of Continental Dynamics Northwest UniversityXi’an 710069China Department of Geology Northwest UniversityXi’an 710069China Shaanxi Key Laboratory of Petroleum Accumulation Geology Xi’an Shiyou UniversityXi’an 710065China School of Earth Sciences and Engineering Xi’an Shiyou UniversityXi’an 710065China

The lower Ordovician mid-assemblage formations in the central Ordos Basin of China host prolific gas resources,and most hydrocarbon reserves are stored in naturally-fractured ***,fracture pathway systems may have a significant impact on reservoir *** article focuses on the core-and laboratory-based characterization of *** the developmental degrees,extended scale,output state and filling characteristics of various types of fractures,the results show that there are three distinct fracture types:1)nearly vertical fractures,2)oblique fractures,and 3)horizontal *** on a systematic study of the characterization of reservoir space,the main geologic setting of natural gas accumulation and the regional tectonic background,type 1 is mainly driven by the tectonic formation mechanism,and type 3 and parts of low-angle fractures in type 2 are induced by the diagenetic formation *** recovered paleopressure for methane-rich aqueous inclusions trapped in fracture-filling cement indicates that the fracture opening and growth are consistent with gas maturation and charge and such high-angle fractures in type 2 are caused by the compound formation *** fractures to hydrocarbon accumulation may play a more significant role in improving the quality of reservoir ***,connected fractures,dissolved pores and cavities together constitute the three-dimensional pore-cave-fracture network pathway systems,with faults serving as the dominant charge pathways of highly pressurized gas in the study *** results demonstrate that protracted growth of a pervasive fracture system is not only the consequence of various formation mechanisms but also intrinsic to quasi-continuous accumulation reservoirs.

关键词： characterization of fracture formation mechanism quasi-continuous accumulation Ordovician mid-assemblage formations Ordos basin

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Reservoir characteristics,formation mechanisms and petroleum exploration potential of volcanic rocks in China

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Petroleum Science 2015年第1期12卷 54-66页

作者： Zhi-Guo Mao Ru-Kai Zhu Jing-Lan Luo Jing-Hong Wang Zhan-Hai Du Ling Su Shao-Min Zhang Research Institute of Petroleum Exploration & Development Petro China State Key Laboratory of Enhanced Oil Recovery Northwest University Xi’an 710069 State Key Laboratory of Continental Dynamics International Iraq FZE Petro China China University of Petroleum

Characterized by complex lithology and strong heterogeneity, volcanic reservoirs in China developed three reservoir space types： primary pores, secondary pores and fractures. The formation of reservoir space went through the cooling and solidification stage （including blast fragmentation, crystallization differentiation and solidification） and the epidiagenesis stage （including metasomatism, filling, weathering and leaching, formation fluid dissolution and tectonism）. Primary pores were formed at the solidification stage, which laid the foundation for the development and transformation of effective reservoirs. Secondary pores were formed at the epidiagenesis stage, with key factors as weathering and leaching, formation fluid dissolution and tectonism. In China, Mesozoic-Cenozoic volcanic rocks developed in the Songliao Basin and Bohai Bay Basin in the east and Late Paleozoic volcanic rocks developed in the Junggar Basin, Santanghu Basin and Ta- rim Basin in the west. There are primary volcanic reser- voirs and secondary volcanic reservoirs in these volcanic rocks, which have good accumulation conditions and great exploration potential.

关键词： Volcanic reservoirs Diagenesis formation mechanism Hydrocarbon exploration

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Hydrothermal Synthesis and mechanism for formation of Novel Micro-Micro-Mesoporous Aluminosilicate Composite Zeolite

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China Petroleum Processing & Petrochemical Technology 2010年第3期12卷 36-42页

作者： QiJian Zhao Tianbo Xu Xin Li Fengyan Sun Guida Institute for Chemical Physics Beijing Institute of Technology Beijing 100081 Department of Applied Chemistry Beijing Institute of Petrochemical Technology

A novel micro-micro-mesoporous aluminosilicate LS-BFMZ （low-silica-BEA（beta）-faujasite （Y）-mesoporous） composite zeolite with the MCM-41 type structure was synthesized through a novel process involving the self- assembly of CTAB surfactant micellae with silica-alumina source originated from alkaline treatment of the beta zeolite. The physical properties of the LS-BFMZ composite zeolite were characterized using various techniques, including XRD, IR and SEM techniques. Meanwhile, a possible mechanism regarding the formation of the LS-BFMZ composite zeolite was proposed.

关键词： micro-micro-mesoporous aluminosilicate hydrothermal synthesis formation mechanism

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Synthesis and formation mechanisms of Calcium Ferrite Compounds

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Journal of Materials Science & Technology 2004年第5期20卷 530-534页

作者： Hesham I.Saleh Inorganic Chemistry Department National Research CenterDokkiCairoEgypt

Calcium ferrite compounds were prepared using calcium nitrate and iron nitrate with different molar ratios, 1:1, 0.5:1, and 1:0.5, respectively. The reactions of formation were investigated at different temperatures following the differential thermal analysis (DTA) results. Calcium ferrite compounds are CaFeO3, Ca2FeO3.5, Ca2Fe2O5, CaFe2O4, CaFe4O7, Ca7.2Fe0.8Fe30O53, Ca3Fe15O25, Ca4Fe14O25, and Ca4Fe9O17. Other reactive species of calcium nitrate are still present after firing at 450℃. Compounds were characterized using X-ray diffraction (XRD), DTA, TG, magnetic susceptibility, infrared spectra and scanning electron microscope (SEM). It is concluded that the formation mechanism of Ca-ferrite compounds depends mainly on the valency of iron cations which in role depends on its molar ratio and the existing atmosphere.

关键词： Ca-ferrite formation mechanism Magnetic susceptibility

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Reservoir differences and formation mechanisms in the Ke-Bai overthrust belt,northwestern margin of the Junggar Basin,China

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Petroleum Science 2010年第1期7卷 40-48页

作者： Zhu Xiaomin Zhu Shifa Xian Benzhong Chen Shuping Kuang Lichun Xue Xinke Xue Jingjing You Xincai State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Faculty of Geoscience China University of Petroleum Beijing 102249 China Research Institute of Petroleum Exploration and Development Xinjiang Oilfield Company CNPC Karamay Xinjiang 834000 China

There are some differences in reservoir quality of clastic rock between the hanging wall and the foot wall of the Ke-Bai overthrust belt, northwestern margin of the Junggar Basin, western China, which affect the efficient petroleum exploration in this highly mature exploration area. Based on a large number of thin-sections, cast thin-sections, and physical property analysis of cores, we systematically discuss the Permian-Jurassic reservoir differences between the hanging wall and the foot wall of the Ke- Bai overthrust fault from the aspects of structural evolution, time-space distribution of the depositional system, diagenesis characteristics, and reservoir quality and analyzed the reasons for the differences in reservoir properties. The overthrusting of the Ke-Bai fault directly results in different burial histories, diagenesis evolution, and porosity evolution between the hanging wall and the foot wall. The diflbrences of reservoir characteristics are mainly embodied in buried depth, grain size, sedimentary facies, diagenetic stage, and reservoir quality. The analysis results showed that burial history and depositional characteristics controlled by overthrusting are direct influencing factors of reservoir differences. Because of shallow burial depth of the hanging wall, the reservoir compaction is weak and primary pores are preserved well. The porosity of reservoir on the hanging wall is generally 10%-25%. The strata on the foot wall are deeply buried, and there are mainly mixed pores with the average porosity of 5%-20%. The favorable reservoir on the foot wall is generally developed near faults or in the channel sand bodies, which are usually dissolution development areas.

关键词： Junggar Basin overthrust belt reservoir differences formation mechanism

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mechanism OF MICROBAND formation IN COLD ROLLED INTERSTITIAL-FREE STEEL

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Transactions of Nanjing University of Aeronautics and Astronautics 2005年第4期22卷 344-350页

作者：沈凯 DUGGAN B J 南京航空航天大学材料科学与技术学院香港大学机械工程系

The mechanism of the shear band formation in the high cold rolled BCC metal is analyzed. Based on the plastic deformation theory, the shear distribution in the deformed grain is calculated by using the Taylor constraint model and the Bishop ＆ Hill maximum work principle. Results show that when the rolling direction （RD） is parallel to a certain direction of a grain, the large localized shear occurs on one slip plane, thus generating microbands in the grain because of the high localized shear strain. The angle between the RD and the shear band is about 30°. The plate-like structure of the microband is formed because of the dislocation double cross slip. The transmission electron microscope （TEM） observation of the microband in the cold rolled BCC metal confirms the formation mechanism of the microband.

关键词： microband plastic deformation formation mechanism transmission electron microscope

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Experimental Insights on the Structural Patterns and Their formation mechanisms of the Xujiaweizi Fault Depression in the Songliao Basin

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Journal of Earth Science 2018年第2期29卷 369-375页

作者： Wei Long Zhongquan Li Ying Li Junliang Chen Fengyu Tan Zhiyi Zheng Jinmiao Hu Runfang Li State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Chengdu 610059 China Key Laboratory of Tectonic Controls on Mineralization and Hydrocarbon Accumulation of Ministry of Land and Resources Chengdu University Of Technology Chengdu 610059 China School of Geosciences King's Colleges University of Aberdeen Aberdeen AB24 3UE UK Exploration and Development Research Institute of Daqing Oilfild Company Ltd. Daqing 163712 China

The Xujiaweizi （XJWZ） fault depression is a primary area for deep-seated gas explo- ration in Daqing. Through seismic profile interpretation, the main sag-controlling fault and struc- tural characteristics in the XJWZ fault depression were analyzed based on folds and faults analysis. A three-dimensional geological model of the XJWZ fault depression was also set up to enable fur- ther discussion by means of structural physical modeling. According to our research, the basic structural framework of the XJWZ fault depression was the result of regional extension. Its forma- tion and evolution were mainly controlled by the Xuxi fault. The structural framework of S-N blocking was due to changes in the fracture attitude. The Xuzhong uplift and the depressions on both sides belong to a normal-fault-related fold and were formed by controlling of the ramp/flat normal fault in the same tectonic movement period.

关键词： structural physical modeling formation mechanism normal-fault-related fold Xujiaweizi fault depression.

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