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添加部分水解罗望子胶对酸木瓜果醋品质的影响

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中国酿造 2024年第6期43卷 168-175页

作者：赵玉琪李延啸田嘉欣吕昂江正强闫巧娟中国农业大学食品科学与营养工程学院北京100083 中国农业大学工学院北京100083 南京财经大学食品科学与工程学院/江苏省现代粮食流通与安全协同创新中心江苏南京210023 中原食品实验室河南漯河462000

该研究以酸木瓜(Chaenomeles speciosa)为原料,通过部分水解罗望子胶(PHTg)对6株乳杆菌的增殖活性测定,选用鼠李糖乳杆菌(Lactobacillus rhamnosus)与酵母菌混菌进行酒精发酵,并从灵石醋醅中筛选鉴定出一株高产醋酸的巴氏醋杆菌巴士亚种... 详细信息

该研究以酸木瓜(Chaenomeles speciosa)为原料,通过部分水解罗望子胶(PHTg)对6株乳杆菌的增殖活性测定,选用鼠李糖乳杆菌(Lactobacillus rhamnosus)与酵母菌混菌进行酒精发酵,并从灵石醋醅中筛选鉴定出一株高产醋酸的巴氏醋杆菌巴士亚种(Acetobacter pasteuranus subsp. pasteuranus)LS-4用于醋酸发酵制备酸木瓜果醋。以未添加PHTg为对照,考察在酒精发酵阶段添加PHTg对酸木瓜果醋品质的影响。结果表明,添加1.0%PHTg,酒精发酵36 h后酒精度达3.3%vol,比对照组提高17.4%;醋酸发酵72 h后总酸含量达42.0 g/L,比对照组提高8.0%。香气成分分析表明,添加PHTg酸木瓜果醋共检出22种香气成分,其中醇类7种、酯类4种、酸类6种、醛酮类3种、酚类和烯烃类各1种,比对照新增了3种香气成分(正丁酸、2-戊酮和壬醛)。感官评价表明,添加PHTg有效提升酸木瓜果醋的口感和气味评分,改善酸木瓜果醋的感官品质。

关键词：酸木瓜果醋部分水解罗望子胶混菌发酵品质

Synthesis and Properties Investigation of Thiophene-aromatic Polyesters: Potential Alternatives for the 2,5-Furandicarboxylic Acid-based ones

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Chinese Journal of Polymer Science 2020年第10期38卷 1082-1091,I0005页

作者： Jing gang Wang Xiao-Qin Zhang ang Shen Jin Zhu Ping An Song Hao Wang Xiao Qing Liu Ning.o Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201China Universty of Chinese Academy ofSciences Bejing 100049China University of Southern Queensland SpringfieldQLD 4300Australia

In order to explore new substitutes for 2,5 furandicarboxylic acid(FDCA)or poly(ethylene 2,5 furandicarboxylate)(PEF)and try to develop more ideal bio based polyesters,several thiophene aromatic polyesters(PETH,PPTH,PBTH,and PHTH)were synthesized from dimethyl thiophene 2,5-dicarboxylate(DMTD)and different diols,including ethylene glycol,1,3-propanediol,1,4-butanediol,and 1,*** chemical structures of obtained polyesters were confirmed by nuclear magnetic resonance spectroscopy(H-NMR and 1'C-NMR).Determined by gPC measurement,their average molecular weight(M.)varied from 5.22 x 10*g/mol to 7.94 x 10*g/mol with the molar-mass dispersity of *** on the DSC and TgA results,the synthesized polyesters PETH,PPTH,and PBTH displayed comparable or even better thermal properties when compared with their FDCA-based *** PETH to PHTH,their Tg varied from 64.6°Cto-1°C while Tsm ranged from 409 C to 380°C in nitrogen atmosphere,PETH showed elongation at break as high as 378%,tensile strength of 67 MPa,and tensile modulus of 1800 ***,the Co2 and o2 barrier of PETH was 12.0 and 6.6 folds higher than those of PET,respectively,and similar to those of *** the overall properties,the synthesized thiophene aromatic polyesters,especially PETH,showed great potential to be used as an excellent bio based packaging material in the future.

关键词： 2,5-Thiophenedicarboxlic acid(TDCA) 2,5 Furandicarborxylic acid(FDCA) Bio based polyesters Brrier properties

Association between Ambient Air Pollution and outpatient Visits for Acute Bronchitis in a Chinese City

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Biomedical and Environmental Sciences 2014年第11期27卷 833-840页

作者： g.o Li Juan ZHAo ang CHEN Ren Jie KAN Hai Dong KUang Xing Ya DepartmentofoccupationalMedicine YangpuHospitalTongjiUniversity Department of occupational Medicine Shanghai Yangpu District Central Hospital Pudong New Area Centers for Disease Control and Prevention School of Public Health Key Laboratory of Public Health Safety of the Ministry of EducationFudan University Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3) Fudan University Research Institute for the Changing g.obal Environment and Fudan Tyndall Centre Fudan University

objective To investigate the short-term association between outdoor air pollution and outpatient visits for acute bronchitis,which is a rare subject of research in the mainland of *** A time-series analysis was conducted to examine the association of outdoor air pollutants with hospital outpatient visits in Shanghai by using two-year daily data（2010-2011）.Results outdoor air pollution was found to be associated with an increased risk of outpatient visits for acute bronchitis in *** effect estimates of air pollutants varied with the lag structures of the concentrations of the *** lag06,a 10 μg/m3 increase in the concentrations of PM10,So2,and No2 corresponded to 0.94%（95% CI：0.83%,1.05%）,11.12%（95% CI：10.76%,11.48%）,and 4.84%（95% CI：4.49%,5.18%） increases in hospital visits for acute bronchitis,*** associations appeared to be stronger in females（P〈0.05）.Between-age differences were significant for So2（P〈0.05）,and between-season differences were also significant for So2（P〈0.05）.Conclusion our analyses have provided the first evidence that the current air pollution level in China has an effect on acute bronchitis and that the rationale for further limiting air pollution levels in Shanghai should be strengthened.

关键词： Air pollution outpatient visits Acute bronchitis Time-series

新型冠状病毒疫苗Ad5-nCoV不同给药途径异源加强接种的系统免疫原性比对分析

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中国药科大学学报 2024年第1期55卷 137-146页

作者：马文煊韩雨红林昂赵维俊中国药科大学基础医学与临床药学学院疫苗中心南京211198 中国药科大学新药安全评价研究中心南京211198 南京农业大学动物医学院南京210095

新冠疫苗异源加强接种可以解决疫苗单一使用时保护效力降低的问题。灭活新冠疫苗联合重组腺病毒载体新冠疫苗(Ad5-nCoV)的序贯接种模式和Ad5-nCoV肌肉注射给药或雾化吸入式给药两种途径已被批准用于临床。本研究在小鼠模型中,系统对比... 详细信息

新冠疫苗异源加强接种可以解决疫苗单一使用时保护效力降低的问题。灭活新冠疫苗联合重组腺病毒载体新冠疫苗(Ad5-nCoV)的序贯接种模式和Ad5-nCoV肌肉注射给药或雾化吸入式给药两种途径已被批准用于临床。本研究在小鼠模型中,系统对比分析了不同接种策略下小鼠体内抗原特异性T细胞、记忆B细胞(MBC)、抗体水平、抗体功能、黏膜免疫应答等关键指标以揭示作用机制。将接种组分为“磷酸盐缓冲液(PBS)对照组”(3×PBS组)、“2针灭活新冠疫苗+1针灭活新冠疫苗”同源加强接种组(3×INA组)、“2针灭活新冠疫苗+1针Ad5-nCoV肌肉注射组”[2×INA+Ad5(im)组]和“2针灭活新冠疫苗+1针Ad5-nCoV滴鼻给药组”[2×INA+Ad5(in)组]。结果显示:2×INA+Ad5(im)组与2×INA+Ad5(in)组异源接种诱导的抗体、Spike特异性T细胞、Spike+MBCs水平均显著高于3×INA组同源接种,Ad5-nCoV在肌肉注射途径下诱导的Spike特异性T细胞、Spike+MBCs水平显著高于滴鼻给药途径。Ad5-nCoV滴鼻加强接种不仅明显诱导血清和支气管灌洗液免疫球蛋白A产生,同时诱导更多中性粒细胞、自然杀伤细胞、树突状细胞向肺组织中募集。本研究系统对比分析了Ad5-nCoV经不同给药途径异源加强接种后诱导的疫苗特异性免疫应答差异,为包括新冠疫苗在内的多种抗感染疫苗提供了预防接种策略指导。

关键词：新型冠状病毒疫苗异源加强接种同源加强接种给药途径免疫原性黏膜免疫

Clinical characteristics and prog.ostic factors of patients with gastric neuroendocrine carcinoma treated with radical surgery

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Chinese Medical Journal 2014年第13期127卷 2419-2422页

作者： Xu Xuefeng Li Jian'ang Han Xu Shi Chenye Jin Dayong Lou Wenhui Department of general Surgery Zhongshan Hospital FudanUniversity Shanghai 200032 China

Backg.ound gastric neuroendocrine carcinomas （g-NECs） are rare tumors that have aggressive biological behaviors and poor prog.osis,but the prog.ostic factors of postoperative patients with g-NEC are still *** aim was to study and explore the clinical characteristics and prog.ostic factors of patients with g-NEC treated with radical *** The clinical data of 43 g-NEC patients who underwent surgery from January 2002 to January 2011 at the Zhongshan Hospital of Fudan University were ***-up was conducted by telephone,mail,or returning visit *** The sizes of the 43 neuroendocrine carcinomas （g3） were 1.5 cm × 1.5 cm × 0.5 cm to 7 cm × 8 cm × 1.5 *** NECs were localized,and 35 had lymph node involvement,of which 1 also had hepatic *** the end of the follow-up,the follow-up rate was 97.7％（42/43）,and the median follow-up time was 22.2 *** median overall survival of g-NEC patients was 36.5 months,and the 1-,3-,and 5-year overall survival rates were 86.0％,51.6％,and 36.7％,*** （P ＜0.05） and lymph node involvement （P ＜0.05） were prog.ostic factors of postoperative g-NEC patients,among which sex was an independent prog.ostic factor （P ＜0.05）,as a survival advantage of female patients over male was *** Most of the g-NECs were diag.osed at an advanced *** prog.osis of g-NECs was related with sex and lymph node involvement,of which sex was an independent prog.ostic factor,with female patients having a survival advantage.

关键词： neuroendocrine tumors stomach neoplasms survival analysis sex

Key emergency response technologies for abrupt air pollution accidents in China

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Journal of Environmental Sciences 2023年第1期123卷 235-254页

作者： Jun Duan Shushuai Mao Pinhua Xie Jianlei Lang ang Li Jingjing Tong Min Qin Jin Xu Zeya Shen Key Laboratory of Environmental optics and Technology Anhui Institute of Optics and Fine MechanicsHFIPSChinese Academy of SciencesHefei 230031China Key Laboratory of Beijing.on Reg.onal Air Pollution Control Faculty of Environment and LifeBeijing University of TechnologyBeijing 100124China School of Environmental Science and optoelectronic Technology University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Reg.onal Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China Institutes of Physical Science and Information Technology Anhui UniversityHefei 230601China

Abrupt air pollution accidents can endanger people’s health and destroy the local ecological *** appropriate emergency response can minimize the harmful effects of accidents and protect people’s lives and *** paper provides an overview of the key emergency response technologies for abrupt air pollution accidents around the g.obe with emphasis on the major achievements that China has obtained in recent *** decades of effort,China has made significant progress in emergency monitoring technologies and equipment,source estimation technologies,pollutant dispersion simulation technologies and *** effective domestic emergency monitoring instruments(e.g.,portable DoAS/FT-IR systems,portable FID/PID systems,portable gC-MS systems,scanning imaging remote sensing systems,and emergency monitoring vehicles)had been developed which can meet the demands for routine emergency response activities.A monitoring layout technique combining air dispersion simulation,fuzzy comprehensive evaluation,and a post-optimality analysis was proposed to identify the optimal monitoring layout scheme under the constraints of limited monitoring *** source estimation technologies,including the forward method and the inversion method,have been established and evaluated under various ***-scale dynamic pollution dispersion simulation systems with high temporal and spatial resolution were further developed.A comprehensive emergency response platform integrating database support,source estimation,monitoring schemes,fast monitoring.of pollutants,pollution predictions and risk assessment was developed based on the technical idea of"source identification-model simulation-environmental monitoring"dynamic interactive *** is expected that the emergency response capability for abrupt air pollution accidents will gradually improve in China.

关键词： Air pollution accidents Emergency response Emergency monitoring Source estimation Pollutant dispersion simulation

Simultaneous removal of Congo red and cadmium(Ⅱ) from aqueous solutions using graphene oxide–silica composite as a multifunctional adsorbent

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Journal of Environmental Sciences 2020年第12期32卷 151-160页

作者： Ebrahim Mahmoudi Sepehr Azizkhani Abdul Wahab Mohammad Law Yong Ng Abdelbaki Benamor Wei Lun ang Muneer Ba-Abbad Department of Chemical and Process Engineering Faculty of Engineering and Built EnvironmentUniversiti Kebangsaan Malaysia43600 BangiSelangor Darul EhsanMalaysia Department of Chemical and Environmental Engineering Faculty of EngineeringUniversiti Putra Malaysia43400 SerdangSelangorMalaysia Department of Chemical Engineering Lee Kong Chian Faculty of Engineering and ScienceUniversiti Tunku Abdul RahmanJalan Sungai LongBandar Sungai LongCheras43000 KajangSelangorMalaysia Centre for Sustainable Process Technology(CESPRo) Faculty of Engineering and Built EnvironmentUniversiti Kebangsaan Malaysia43600 BangiSelangor Darul EhsanMalaysia gas Processing Centre Qatar UniversityP.O.Box 2713DohaQatar

graphene oxide is a very high capacity adsorbent due to its functional g.oups and π-π interactions with other compounds. Adsorption capacity of graphene oxide, however, can be further enhanced by having synergistic effects through the use of mixed-matrix composite. In this study, silica-decorated graphene oxide(Sgo) was used as a high-efficiency adsorbent to remove Congo red(CR) and Cadmium(Ⅱ) from aqueous solutions. The effects of solution initial concentration(20 to 120 mg/l), solution pH(pH 2 to 7), adsorption duration(0 to 140 min) and temperature(298 to 323 K) were measured in order to optimize the adsorption conditions using the Sgo adsorbent. Morphological analysis indicated that the silica nanoparticles could be dispersed uniformly on the graphene oxide surfaces. The maximum capacities of adsorbent for effective removal of Cd(Ⅱ) and CR were 43.45 and 333.33 mg/g based on Freundlich and Langmuir isotherms, respectively. Langmuir and Freundlich isotherms displayed the highest values of Q max for CR and Cd(Ⅱ) adsorption in this study, which indicated monolayer adsorption of CR and multilayer adsorption of Cd(II) onto the Sgo, respectively. Thermodynamic study showed that the enthalpy( H) and gibbs free energy( g) values of the adsorption process for both pollutants were negative, suggesting that the process was spontaneous and exothermic in nature. This study showed active sites of Sgo( π-π, hydroxyl, carboxyl, ketone, silane-based functional g.oups) contributed to an enormous enhancement in simultaneous removal of CR and Cd(Ⅱ) from an aqueous solu-tion, Therefore, Sgo can be considered as a promising adsorbent for future water pollution control and removal of hazardous materials from aqueous solutions.

关键词： graphene-oxide Multifunctional adsorbent Competitive removal Heavy metal-dye removal

Species of Lasiodiplodia associated with mango in Brazil

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Fungal Diversity 2013年第4期61卷 181-193页

作者： Marília W.Marques Nelson B.Lima Marcos Antônio de Morais Jr Maria angélica g.Barbosa Breno o.Souza Sami J.Michereff Alan J.L.Phillips Marcos P.S.Câmara Departamento de Ag.onomia Universidade Federal Rural de Pernambuco52171-900 RecifeBrazil Departamento de genética Universidade Federal de Pernambuco50732-970 RecifeBrazil Embrapa Semi-Árido 56302-970 PetrolinaBrazil Centro de Recursos Microbiológicos Departamento de Ciências da VidaFaculdade de Ciências e TecnologiaUniversidade Nova de Lisboa2829-516 CaparicaPortugal

Mango(Mangifera indica)is a major tropical fruit species cultivated in *** objective of this study was to identify species of Lasiodiplodia associated with dieback and stem-end rot of mango in the semi-arid reg.on of Northeastern Brazil,and compare the species in relation to mycelial g.owth,pathogenicity and virulence.A total of 120 isolates of Lasiodiplodia were used and identifications were made using a combination of morphology and phylogenetic analysis based on partial translation elongation factor 1-αsequence(EF1-α)and internal transcribed spacers(ITS).The following species were identified:Lasiodiplodia crassispora,***,***,***,***,*** and Lasiodiplodia sp..Lasiodiplodia theobromae was the most frequently isolated species,which represented 41%of all the *** this species had been previously reported on mango in Brazil,while the other species represent the first report associated with mango tree diseases in this *** crassispora is reported for the first time associated with mango diseases *** were significant differences in mycelial g.owth rates among the Lasiodiplodia species and also in the optimum temperature for *** species of Lasiodiplodia were pathogenic on mango *** were significant differences in virulence among the species,wherein *** and Lasiodiplodia *** the most virulent,while the least virulent were ***,***,*** and ***.

关键词： Botryosphaeriaceae Mangifera indica ITS EF1-α Phylogeny Virulence

AI Enlightens Wireless Communication: Analyses and Solutions for DMRS Channel Estimation

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China Communications 2023年第5期20卷 275-287页

作者： Bule Sun Zhiqin Wang ang Yang Xiaofeng Liu Shi Jin Peng Sun Rakesh Tamrakar Dajie Jiang Vivo Mobile Communication Co. Ltd.Beijing 100015China China Academy of Information and Communications Technology Beijing 100191China National Mobile Communications Research Laboratory Southeast UniversityNanjing 211189China

In this paper,a systematic description of the artificial intelligence(AI)-based channel estimation track of the 2nd Wireless Communication AI Competition(WAIC)is provided,which is hosted by IMT-2020(5g)Promotion g.oup 5g+AIWork ***,the system model of demodulation reference signal(DMRS)based channel estimation problem and its corresponding dataset are *** the potential approaches for enhancing the performance of AI based channel estimation are discussed from the viewpoints of data analysis,pre-processing,key components and backbone network *** last,the final competition results composed of different solutions are *** is expected that the AI-based channel estimation track of the 2nd WAIC could provide insightful guidance for both the academia and industry.

关键词： MIMo DMRS channel estimation AI data analysis preprocessing model design