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Comparison of physicochemical Characterization of Grain Flour from Different Sweet and Grain Sorghum Varieties

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Journal of Food Science and Engineering 2017年第1期7卷 17-28页

作者： Abuelgasim Mohamed Ahmed Qiao-Quan Liu Key laboratory of Crop Genetics and Physiology of Jiangsu Province Co-Innovation Center for Modern Production Technology of Grain Crops Yangzhou University Yangzhou 225009 Jiangsu China Department of Botany and Agrieultural Biotechnology Faculty of Agriculture University of Khartoum Khartoum 13314 Sudan

Worldwide interest about using sweet sorghum （sorghum bicolor L. Moench） as bio-fuel stock is booming and a little has been focused to it is grain flour composition, whereas sorghum is important for the economy of semiarid regions since it thrives and produces both grain and forage. Eight sweet sorghum and four grain sorghum were investigated for chemical composition and physico-chemical characterization. The result showed that amylose content for some sweet varieties was high （YT, 27.10%） as that of grain varieties （GL-1, 27.19%）. Total phenolic content of most sweet varieties was high relative to the grain, whereas most of the grain varieties showed thick gel. Total starch showed significant variation among varieties with higher values obtained from sweet ones （80.20% GL-6 and 82.60% GL-13）. For pasting properties all of sweet varieties clotted upper to the grain varieties in the RVA viscogram. Sweet varieties ranked lower for most of thermal properties than the grain varieties. Current result reflected that sweet varieties studied have prospective future for starch industries and generally characterized by low grain quality in respect to protein content. Among parameter studied protein content, pasting properties and thermal properties clearly exhibited different trends between sweet and grain varieties studied.

关键词： Sorghum sweet sorghum flour amylose content physico-chemical properties grain quality

Contribution to the Hydrochemical Study of Groundwater from the Continental Terminal in Saloum

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Journal of Water Resource and Protection 2022年第2期14卷 51-71页

作者： Sakhel Ndong Baba Ngom Saidou Ndao Alioune Ly Saliou Ngom Séni Tamba UFR Sciences & Technologies University Iba Der Thiam of Thies Thies Senegal laboratory of Sciences and Technologies of Water and Environment (LaSTEE) Polytechnic School of Thies (EPT) Thies Senegal Société Nationale des Eaux du Senegal (SONES) Dakar Senegal

This paper focuses on the study of the aquifer of the Continental Terminal in the south of Saloum river. This study aims to participate in the knowledge of the physicochemical quality and to help understand the origins and processes of the mineralization of the water of the Continental Terminal (CT). physicochemical treatments show an average pH of 6.61 indicating a slightly acidic water overall. The electrical conductivity varies between 37.4 and 12,320 μS·cm-1 with an average of 729.3 μS·cm-1. High conductivities are recorded around the ocean and the Saloum River, indicating higher mineralized waters in these areas. The geochemical study and multivariate statistical analysis indicate three groups of the sampled waters. Group 1 is mainly formed of the Ca-HCO3, Na-HCO3, Ca-Cl and Na-Cl facies. This group is the most common one and is found throughout the southern Saloum area. Group 2, mainly made up of the Ca-HCO3 and Na-HCO3 facies, is located in the center, east, west and north of the zone. The mineralization of these two groups is believed to be of carbonate, evaporitic and/or anthropogenic origin. Group 3 is formed from the Na-Cl facies. This group is located in the north and west of the area (near the ocean and the Saloum river). This group 3 suggests pollution of marine and anthropogenic origin. The calculated base indices suggest cationic exchanges between the waters and the formations of the water table of the terminal continental.

关键词： Continental Terminal Aquifer Saloum Physico-Chemical Quality Mineralization Geochemistry Multivariate Statistical Analysis

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微生物成矿

高校地质学报 2005年第2期11卷 167-180页

作者：李一良王汝成周根涛张传伦 Savannah River Ecology laboratory University of Georgia Drawer E Aiken SC 29803 USA Department of Earth Sciences Nanjing University Nanjing 210093 China School of Earth and Space Sciences University of Science and Technology of China Hefei 230026 China

微生物对生命元素如碳、氮、硫、氧和金属离子的代谢作用能显著的改变微生物周边的外部环境和其内部环境。在一系列的生物地球化学过程中,微生物参与了矿产的沉积(生物成矿)或参与了矿石和岩石的溶解(生物风化)。生物成矿作用有两个途径... 详细信息

微生物对生命元素如碳、氮、硫、氧和金属离子的代谢作用能显著的改变微生物周边的外部环境和其内部环境。在一系列的生物地球化学过程中,微生物参与了矿产的沉积(生物成矿)或参与了矿石和岩石的溶解(生物风化)。生物成矿作用有两个途径:一个叫生物诱导成矿,通过这个过程,微生物分泌出代谢产物导致了之后的矿物颗粒的沉积;另一个叫生物控制成矿,在这个过程中,微生物在控制矿物成核和生长上起到了显著作用。微生物成因的矿物总体来说颗粒都很小和/或有着独特的同位素特征。最普遍的生物成因矿物有碳酸盐、硫化物和铁的氧化物。细胞表面和其分泌的胞外聚合物的结构可以为离子的浓缩、聚合和矿化提供模板,并起到重要作用。地球材料的仿生合成帮助我们了解了在人工条件下的生物成矿机制。此外,在地质环境中生物成因的矿物还可以作为一种生物信号,用来重建地球和其他行星的起源和演化。

关键词：微生物生物成因矿物生物诱导成矿生物控制成矿仿生合成生物信号

Cellulose-based composite scaffolds for bone tissue engineering and localized drug delivery

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Bioactive Materials 2023年第2期20卷 137-163页

作者： Mahsa Janmohammadi Zahra Nazemi Amin Orash Mahmoud Salehi Amir Seyfoori Johnson V.John Mohammad Sadegh Nourbakhsh Mohsen Akbari Faculty of New Sciences and Technologies Semnan UniversitySemnanP.O.Box:19111-35131Iran laboratory for Innovations in Micro Engineering(LiME) Department of Mechanical EngineeringUniversity of Victori1Victori1BCV8P 5C2Canada Terasaki Institute for Biomedical Innovations Los AngelesCA90050USA Biotechnology Center Silesian University of TechnologyAkademicka 2A44-100GliwicePoland Faculty of Materials and Metallurgical Engineering Semnan UniversitySemnanP.O.Box:19111-35131Iran

Natural bone constitutes a complex and organized structure of organic and inorganic components with limited ability to regenerate and restore injured tissues,especially in large bone *** improve the reconstruction of the damaged bones,tissue engineering has been introduced as a promising alternative approach to the conventional therapeutic methods including surgical interventions using allograft and autograft *** composite scaffolds consisting of multifunctional biomaterials in combination with the cells and bioactive therapeutic agents have great promise for bone repair and *** and its derivatives are renewable and biodegradable natural polymers that have shown promising potential in bone tissue engineering ***-based scaffolds possess numerous advantages attributed to their excellent properties of non-toxicity,biocompatibility,biodegradability,availability through renewable resources,and the low cost of preparation and ***,cellulose and its derivatives have been extensively used for delivering growth factors and antibiotics directly to the site of the impaired bone tissue to promote tissue *** review focuses on the various classifications of cellulose-based composite scaffolds utilized in localized bone drug delivery systems and bone regeneration,including cellulose-organic composites,cellulose-inorganic composites,cellulose-organic/inorganic *** will also highlight the physicochemical,mechanical,and biological properties of the different cellulose-based scaffolds for bone tissue engineering applications.

关键词： Cellulose Cellulose derivatives Bone tissue engineering Drug delivery system

Advances on the modification and biomedical applications of acellular dermal matrices

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Journal of Leather Science and Engineering 2022年第1期4卷 268-286页

作者： Yining Chen Xinhua Liu Xin Zheng Xuantao Huang Weihua Dan Zhengjun Li Nianhua Dan Yunbing Wang Key laboratory of Leather Chemistry and Engineering(Sichuan University) Ministry of EducationChengdu 610065China Research Center of Biomedical Engineering Sichuan UniversityChengdu 610065SichuanChina College of Bioresources Chemical and Materials Engineering Institute of Biomass&Functional MaterialsShaanxi University of Science&TechnologyXi’an 710021China National Engineering Research Center for Biomaterials Sichuan University29 Wang Jiang RoadChengdu 610065China.

Acellular dermal matrix(ADM)is derived from natural skin by removing the entire epidermis and the cell components of dermis,but retaining the collagen components of *** can be used as a therapeutic alternative to“gold standard”tissue grafts and has been widely used in many surgical fields,since it possesses affluent predominant physicochemical and biological characteristics that have attracted the attention of ***,the basic science of biologics with a focus on ADMs is comprehensively described,the modification principles and technologies of ADM are discussed,and the characteristics of ADMs and the evidence behind their use for a variety of reconstructive and prosthetic purposes are *** addition,the advances in biomedical applications of ADMs and the common indications for use in reconstructing and repairing wounds,maintaining homeostasis in the filling of a tissue defect,guiding tissue regeneration,and delivering cells via grafts in surgical applications are thoroughly *** review expectedly promotes and inspires the emergence of natural raw collagen-based materials as an advanced substitute biomaterial to autologous tissue transplantation.

关键词： homeostasis removing retaining

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Phase separation in synthetic biology

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Quantitative Biology 2021年第4期9卷 378-399页

作者： Shuyu Shi Wen Si Xiaoyi Ouyang Ping Wei Undergraduate Program of Medicine Peking University Third HospitalBeijing 100191China Academy for Advanced Interdisciplinary Studies Peking UniversityBeijing 100871China School of Physics Peking UniversityBeijing 100871China Center for Quantitative Biology Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China Center for Cell and Gene Circuit Design CAS Key Laboratory of Quantitative Engineering BiologyShenzhen Institute of Synthetic BiologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

Background:The concept of phase separation has been used to describe and interpret physicochemical phenomena in biological systems for *** intracellular macromolecules undergo phase separation,where it plays important roles in gene regulation,cellular signaling,metabolic reactions and so on,due to its unique dynamic properties and biological *** the noticeable importance of phase separation,pioneer researchers have explored the possibility to introduce the synthetically engineered phase separation for applicable cell ***:In this article,we illustrated the application value of phase separation in synthetic *** described main states of phase separation in detail,summarized some ways to implement synthetic condensates and several methods to regulate phase separation,and provided a substantial amount of identical examples to illuminate the applications and perspectives of phase separation in synthetic ***:Multivalent interactions implement phase separation in synthetic *** molecules,light control and spontaneous interactions induce and regulate phase *** synthetic condensates are widely used in signal amplifications,designer orthogonally non-membrane-bound organelles,metabolic pathways,gene regulations,signaling transductions and controllable *** on quantitative analysis,more standardized modules and precise spatiotemporal control of synthetic phase separation may promote the further development of this field.

关键词： phase separation synthetic biology multivalent interaction non-membrane-bound organelle signaling transduction and amplification

Study of the Stability during Aging of Mixed Cashew and Papaya Wine Produced with Palm Wine Sediment

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Food and Nutrition Sciences 2022年第2期13卷 181-194页

作者： Jean Ives Kablan Gnoumou Doudjo Soro Blanchard G. A. Adou Gnagne Ernest K. Koffi Food Chemical and Environmental Process Sciences Félix Houphou&#235 t-Boigny National Polytechnic Institute Yamoussoukro Ivory Coast laboratory of Biochemistry Agriculture and Biological Ressource Valorization Faculty of Biosciences Félix Houphou&#235 t-Boigny University Abidjan Ivory Coast

During the ageing of wine, many reactions occur generating enormous modifications. After pasteurization (65°C/5minutes) of the mixed cashew apple and papaya wine, physicochemical, microbiological and sensory analyses were performed during the two (2) months of aging. The results showed no significant variation between the young wine and the one aged for two (2) months for pH, titratable acidity, alcoholic percentage and density. However, for ESR, vitamin C, total anthocyanins and aroma a significant difference (p ≤ 0.05) was observed. This difference was observed during the first 45 days and then stabilized until the sixtieth day. Values ranged from 6.3°B to 5.5°B;from 84.65 ± 0.6 to 77.9 ± 0.2 mg/100mL;from 165.5 ± 0.8 to 50.25 ± 0.3 mg/100mL for RDE, vitamin C and total anthocyanins respectively. For aroma, there was more development between the young wine and the one aged for two months. Concerning the sanitary quality, there is a progressive decrease of the different germs during the aging period. Except for yeasts, which are undetectable, the load of aerobic mesophilic germs and lactic acid bacteria varies respectively from 3.5 × 105 to 1.4 × 105 CFU/mL and from 1.5 × 105 to 1 × 105 CFU/mL.

关键词： Stability Aging Wine Sediment Papaya Cashew Apple

Synthesis and Structural Analysis of Novel Norspermidine Derivatives

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International Journal of Organic Chemistry 2017年第2期7卷 106-139页

作者： Bogumil Brycki Iwona Kowalczyk Justyna Werner Tomasz Pospieszny Anna Koziróg laboratory of Microbiocides Chemistry Faculty of ChemistryAdam Mickiewicz UniversityPoznańPoland Insitute of Chemistry and Technical Electrochemistry Poznan University of TechnologyPoznańPoland Institute of Fermentation Technology and Microbiology Faculty of Biotechnology and Food SciencesLodz University of TechnologyLódzPoland

A series of new norspermidine derivatives, both nonionic and cationic, have been obtained. Structures of the synthesized compounds have been estab-lished by FTIR, 1H NMR, 13C NMR, 2D NMR, mass spectrometry and element... 详细信息

关键词： Polyamines Norspermidine Phthalimides Quaternary Ammonium Salts Antimicrobial Activity FTIR ^(1)H NMR ^(13)C NMR 2D NMR MS

Ion compaction effect in hollow FePt nanochains with ultrathin shell under low energy ion irradiation

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Nano Research 2022年第10期15卷 9309-9318页

作者： Jialong Liu Jianguo Wu Long Cheng Suyun Niu Zhiqiang Wang Mengyuan Zhu Jingyan Zhang Shouguo Wang Wei Wang School of Mathematics and Physics Beijing University of Chemical TechnologyBeijing 100029China Key laboratory of Shale Gas and Engineering Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing 100029China School of Physics Beihang UniversityBeijing 100029China Beijing Hangxing Machinery Manufacturing Co. Ltd.Beijing 100013China Beijing Smart-chip Microelectronics Technology Co. Ltd.Beijing 100192China Beijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China

The morphology manipulation of nanomaterials by ion irradiation builds a way to precisely control physicochemical *** the continuous irradiation of low energy Ga+,Ne+,and He+ions,an ion compaction effect has been found in hollow FePt nanochains with ultrathin shell that the volumes of the nanochains are gradually compacted by *** deep learning algorithm has been successfully applied to automatically and precisely measure average sizes of spheres in hollow FePt *** compaction under ion irradiation is very fast in the very early period and then proceeds to a slow *** compaction rates in both regions are linearly fitted and all the values are in the order of 10^(–17) to 10^(–14) cm^(2)/*** species and ion current have effect on the compaction *** example,the compaction rate of Ga+ions is larger than those of Ne+and He+ions under an identical current,while irradiation with larger current can compact nanochains *** ion compaction effect originates from the local shear deformation caused by the interaction between incident ions and the electrons of Fe and Pt atoms in the ultrathin *** continuous irradiation,the crystalline clusters of FePt nanchains firstly grow larger and then become *** ion compaction effect can be applied to tune the size and crystal structure of hollow structures with a precise rate by choosing appropriate ion species and current.

关键词： ion compaction effect hollow structure ion irradiation FePt