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冀北地区致犊牛腹泻奇异变形杆菌的分离鉴定及耐药性研究

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中国预防兽医学报 2024年第1期46卷 24-31页

作者：张召兴韩平王亚男王珍珊张妍郭磊衡江鸿闫港张艳英河北旅游职业学院河北承德067000 河北科技师范学院河北省预防兽医学重点实验室河北秦皇岛066004 承德市农林科学院河北承德067000 承德市双桥区农业农村局河北承德067065

为鉴定冀北地区养殖场中引起犊牛腹泻的病原菌,本实验于2021年~2023年采集冀北地区养殖场中患腹泻病奶肉犊牛的肛拭子、粪便及肝脏等病料样品247份,采用细菌分离培养、形态学观察、生化鉴定和ureR基因的PCR扩增等方法进行细菌的分离鉴定... 详细信息

为鉴定冀北地区养殖场中引起犊牛腹泻的病原菌,本实验于2021年~2023年采集冀北地区养殖场中患腹泻病奶肉犊牛的肛拭子、粪便及肝脏等病料样品247份,采用细菌分离培养、形态学观察、生化鉴定和ureR基因的PCR扩增等方法进行细菌的分离鉴定,结果显示,从采集的247份患腹泻病的奶肉犊牛病料样品中分离并鉴定到102株奇异变形杆菌(PM)。将分离菌人工感染小鼠(0.20 m L/只,含菌量为108cfu/mL),检测PM对小鼠的致病性。结果显示其中72株PM引起小鼠发病与死亡,为致病性PM,小鼠的死亡率在40%~100%。采用PCR方法及K-B药敏纸片法分别检测分离菌的毒力基因、相关耐药基因及耐药性,采用SPSS19软件中的Fisher确切概率法分析PM耐药表型与相关耐药基因之间的相关性。结果显示,毒力基因fliL、zapA、pmf A、atfA、rsb A、ureC、atfC在72株致病性PM中的检出率在63.4%~100%,其他毒力基因的检出率在2.7%~8.1%;72株致病性PM对阿莫西林、氨苄西林、安普霉素等12种药物耐药的菌株占51.4%以上,对其他药物耐药的菌株占6.9%~33.3%,均呈多重耐药性(MDR),且至少耐3类药物;72株致病性PM的β-内酰胺类耐药基因blaOXA、blaCTX-M、blaTEM,磺胺类耐药基因Sul1、Sul2、Sul3,氨基糖苷类耐药基因adA、aac(6’)-Ib,四环素类耐药基因TetA、TetM的检出率在43.2%~98.6%,其他耐药基因检出率在4.2%~33.3%,其耐药表型与耐药基因型之间基本呈正相关(除多粘菌素类和大环内酯类药物外)。本研究为致奶肉犊牛腹泻的奇异变形杆菌病的防控提供了参考。

关键词：犊牛奇异变形杆菌致病性毒力基因耐药性耐药基因

Pregnancy Benefit of Acupuncture on in vitro Fertilization:A Systematic Review and Meta-Analysis

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Chinese Journal of Integrative Medicine 2023年第11期29卷 1021-1032页

作者： zhang Hao-ran zhang Cheng ma Pei-hong SUN Cheng-yi SUN Chong-yang LIU Xiao-yu PU zhen-qing LIN yu-han LIU Bao-yan LIU Cun-zhi yan Shi-yan College of Preschool Education Beijing Youth Politics CollegeBeijing(100102)China School of Acupuncture Moxibustion and TuinaBeijing University of Chinese MedicineBeijing(100029)China School of Acupuncture and Moxibustion Tianjin University of Traditional Chinese MedicineTianjin(301617)China China Academy of Chinese Medical Sciences Beijing(100091)China

Background:Currently,more and more infertility couples are opting for combined acupuncture to improve success rate of in vitro fertilization(IVF).However,evidence from acupuncture for improving IVF pregnancy outcomes remains a matter of ***:To quantitatively summarized the evidence of the efficacy of acupuncture among women undergoing IVF by means of systematic review and ***:Four English(PubMed,Web of Science,EMBASE,and Cochrane Register of Controlled Clinical Trials)and Four Chinese databases(Wanfang Databases,Chinese National Knowledge Infrastructure,Chinese Science and Technology Periodical Database,and SinoMed)were searched from database inception until July 2,*** controlled trials(RCTs)that evaluated the acupuncture’s effects for women undergoing IVF were *** subgroup analysis was conducted with respect to the age of participants,different acupuncture types,type of control,acupuncture timing,geographical origin of the study,whether or not repeated IVF failure,and acupuncture *** analyses were predefined to explore the robustness of *** primary outcomes were clinical pregnancy rate(CPR)and live birth rate(LBR),and the secondary outcomes were ongoing pregnancy rate and miscarriage *** effects model with I^(2)statistics were used to quantify *** bias was estimated by funnel plots and Egger’s ***:A total of 58eligible RCTs representing 10,968 women undergoing IVF for pregnant success were *** CPR and LBR showed a significant difference between acupuncture and control groups[69 comparisons,relative risk(RR)1.19,95%confidence intervals(CI)1.12 to 1.25,I^(2)=0],extremely low evidence;23 comparisons,RR 1.11,95%CI 1.02 to 1.21,I^(2)=14.6,low evidence,*** transcutaneous electrical acupoint stimulation showed a positive effect on both CPR(16 comparisons,RR 1.17,95%CI 1.06 to 1.29;I^(2)=0,moderate evidence)and LBR(9 comparisons,R

关键词： acupuncture Acupuncture stimulation

原位重构限制在三维纳米孔铜内的铋纳米颗粒促电还原CO_(2)

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Science China materials 2024年第3期67卷 796-803页

作者：赵秋玉王静庄严宫磊张薇宁樊唯镏鲁振张永政藤田武志张平薛其坤 School of Physics and Physical Engineering Qufu Normal UniversityQufu 273165China School of Chemistry and Chemical Engineering Shandong UniversityJinan 25010China Institute of Physics Chinese Academy of SciencesBeijing 100190China Advanced Institute for materials Research Tohoku UniversitySendai 980-8577Japan School of Environmental Science and Engineering Kochi University of TechnologyKami 782-8502Japan

由于单金属Bi在CO_(2)还原反应(CO_(2)RR)中效率较低,通过表面工程复合材料提高电导率和产率是一种有吸引力的方法.在此,我们重构了在三维纳米孔铜结构中的原位生长金属Bi纳米颗粒.得益于三维纳米多孔导电网络和Cu与Bi之间的强相互作用,... 详细信息

由于单金属Bi在CO_(2)还原反应(CO_(2)RR)中效率较低,通过表面工程复合材料提高电导率和产率是一种有吸引力的方法.在此,我们重构了在三维纳米孔铜结构中的原位生长金属Bi纳米颗粒.得益于三维纳米多孔导电网络和Cu与Bi之间的强相互作用,Bi@np-Cu费米能级向上移动,表现出优异的电催化二氧化碳还原性能.Bi@np-Cu在-0.97 V的电位下具有97.7%的甲酸法拉第效率,电流密度为82 ma cm^(-2).重要的是,该催化剂在连续催化反应40 h后仍能实现超过90%的法拉第效率.DFT计算表明,np-Cu有效地调节了Bi的电子态,优化了中间吸附能,从而提高了Bi的本征活性.这项工作为纳米多孔金属在催化中的应用提供了一个新视角.

关键词： 3D nanoporous CO_(2)RR Bi nanoparticle electrocatalysis reconstruction

对神经元氧化应激损伤具有保护活性的灵芝化合物体外筛选及作用机理

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南方农业学报 2024年第7期55卷 1935-1948页

作者：马迎春张劲松贾薇于子行杨妍刘艳芳张赫男唐传红张亚平汪雯翰石河子大学生命科学学院新疆石河子832003 上海市农业科学院食用菌研究所/农业农村部南方食用菌资源利用重点实验室/国家食用菌工程技术研究中心/上海市农业遗传育种重点实验室上海201403 上海海洋大学食品学院上海201306

【目的】筛选灵芝中具有保护神经元活性的化合物,并探究其相应的作用机理,为研发具有预防和治疗阿尔茨海默病(AD)功效的灵芝功能性食品、保健品和药品提供科学依据。【方法】基于β-淀粉样蛋白(Aβ)诱导的氧化损伤建立细胞模型,对1,1-... 详细信息

【目的】筛选灵芝中具有保护神经元活性的化合物,并探究其相应的作用机理,为研发具有预防和治疗阿尔茨海默病(AD)功效的灵芝功能性食品、保健品和药品提供科学依据。【方法】基于β-淀粉样蛋白(Aβ)诱导的氧化损伤建立细胞模型,对1,1-二苯基-2-三硝基苯肼(DPPH)自由基清除法、铁离子还原/抗氧化能力检测法和2,2-联氮-双(3-乙基苯并噻唑啉-6-磺酸)二铵盐(ABTS)自由基清除法初步评估得到的抗氧化活性较强的灵芝醇提物进行筛选,并对其神经元保护活性进行评价。进一步利用灵芝醇提物中与抗氧化有关的4种三萜类化合物,验证其活性并通过表面等离子共振技术探究其相关作用机理。【结果】DPPH、ABTS自由基清除及铁离子还原/抗氧化能力等体外理化初筛与细胞水平筛选试验结果表明,6种灵芝醇提物(108、161、106-2、171、173和109)抗氧化保护神经元活性较强,其中108、109和106-2样品对大鼠肾上腺髓质嗜铬瘤细胞(PC12细胞)氧化应激损伤的保护效果最好;灵芝醇提物可通过缓解细胞周期紊乱、抑制细胞早期凋亡、提高超氧化物歧化酶(SOD)活性和谷胱甘肽(GSH)含量,抑制丙二醛(MDA)含量上升来发挥神经元保护作用。灵芝醇提物108、106-2和109中4种三萜类化合物(灵芝醛A、灵芝酸B、灵芝酸C2和灵芝酸LM2)的平均含量占比相对较高。活性验证表明4种化合物对细胞氧化应激损伤均有明显修复效果,其中灵芝醛A与Aβ_(1~42)具有较强的亲和力,其KD值为15.62μmol/L,可通过与Aβ_(1~42)竞争性结合来抑制Aβ_(1~42)与RAGE结合。【结论】灵芝醇提物的抗氧化神经元活性通过灵芝酸C2、灵芝酸B、灵芝酸LM2和灵芝醛A 4种化合物的协同效应来实现。灵芝醛A能通过与RAGE竞争性结合来减轻或抑制Aβ_(1~42)细胞毒性作用。灵芝具有开发防治AD功能性产品的潜力。

关键词：灵芝醇提物淀粉样β蛋白肽灵芝三萜自由基阿尔茨海默病

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CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai yu Bai yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert maarten Boonekamp marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao jianshe Cao Antoine Chance Xuejun Chang yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen jinhui Chen ji-yuan Chen Kai Chen mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng yunlong Chi Pietro Chimenti Wen han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-yun Dai Xinchen Dai Xuwen Dai Antonio De maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong jianin AGH University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui University HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing Normal University Beijing Brown University ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo University Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central China Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan China academy of engineering physics MianyangSichuan China building materials academy Beijing China Center of Advanced Science and Technology Beijing China Institute of Atomic Energy Beijing China jiliang University HangzhouZhejiang China Nuclear Instrument CO. LTDBeijing China University of Geosciences Beijing China University of Geosciences WuhanHubei China University of Mining and Technology XuzhouJiangsu China West Normal University NanchongSichuan Chongqing University Department of PhysicsChongqing Chulalongkorn University Bangkok City University of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell University IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP jiNR) Dubna East China University Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

ICU标准化护理流程在重症脑出血患者中的应用价值

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中国标准化 2024年第18期 261-264页

作者：赵洁杨君艳张珍郭伟韩萍山东大学齐鲁医院

目的:分析ICU标准化护理流程在重症脑出血患者中的应用价值。方法:选择山东大学齐鲁医院于2022年1月至2023年12月ICU收治的126例重症脑出血患者,2022年1月至2022年12月为对照组(63例,采用常规护理流程),2023年1月至2023年12月为观察组(6... 详细信息

目的:分析ICU标准化护理流程在重症脑出血患者中的应用价值。方法:选择山东大学齐鲁医院于2022年1月至2023年12月ICU收治的126例重症脑出血患者,2022年1月至2022年12月为对照组(63例,采用常规护理流程),2023年1月至2023年12月为观察组(63例,实施ICU标准化护理流程),对比两组的干预效果。结果:观察组血压、NIHSS评分、炎症因子水平、并发症发生率、机械通气时间、ICU治疗时间、住院时间均明显低于对照组,差异显著(P<0.05)。结论:在对重症脑出血患者实施临床治疗时,采用ICU标准化护理流程效果更佳,可显著维持血压平稳,降低炎症因子水平,减少并发症发生,促进快速康复,有较高应用价值。

关键词： ICU标准化护理流程重症脑出血应用价值

Insights into the Bamboo Genome:Syntenic Relationships to Rice and Sorghum

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Journal of Integrative Plant Biology 2010年第11期52卷 1008-1015页

作者： Yi-jie Gui yan Zhou yu Wang Sheng Wang Sheng-yue Wang yan Hu Shi-ping Bo Huan Chen Chang-ping Zhou Nai-Xun ma Tian-zhen zhang Long-jiang Fan Institute of Crop Science & Institute of Bioinformatics Zhejiang UniversityHangzhou 310029China State Key Laboratory of Genetic Engineering Department of MicrobiologySchool of Life SciencesFudan UniversityShanghai 200032China hangzhou Dianzi University XiashaHangzhou 310018China MOST Key Laboratory of Health and Disease Genomics Chinese National Human Genome Center at ShanghaiShanghai 201203China National Key Laboratory of Crop Genetics and Germplasm Enhancement Nanjing Agriculture UniversityNanjing 210095China Anji Bamboo Exposition Garden Anji 313300China The Research Institute of Subtropical Forestry Chinese Academy of ForestryFuyang 311400China

Bamboo occupies an important phylogenetic node in the grass family and plays a significant role in the forest *** produced 1.2 Mb of tetraploid moso bamboo （Phyllostachys pubescens *** ex *** Leh.） sequences from 13 bacterial artificial chromosome （BAC） clones,and these are the largest genomic sequences available so far from the subfamily *** content of repetitive elements （36.2%） in bamboo is similar to that in *** rice and sorghum exhibit high genomic synteny with bamboo,which suggests that rice and sorghum may be useful as models for decoding Bambusoideae genomes.

关键词： Bamboos Sorghum Rice Genomes

Comparative analysis of cytochrome P450-like genes from Locusta migratoria manilensis： expression profiling and response to insecticide exposure

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Insect Science 2012年第1期19卷 75-85页

作者： yan-Qiong Guo jian-zhen zhang Mei-Ling yang Liang-zhen yan Kun yan Zhu Ya-ping Guo En-Bo ma Institute of Appfied Biology Shanxi UniversityTaiyuan College of Agriculture Shanxi Agricultural UniversityTaiguShanxi ProvinceChina Department of Entomology Kansas State UniversityManhattanKansasUSA

The cytochrome P450 monooxygenase （cytochrome P450） gene superfamily comprises many genes that may be involved in the biotransformations of pesticides and other xenobiotics. To date, very little is known about cytochrome P450 genes in the oriental migratory locust, Locusta migratoria manilensis. In this study, we carried out a genomewide analysis ofcytochrome P450 genes of the locust to identify putative cytochrome P450 genes and characterize their expression responses to insecticide exposures. We identified 15 cytochrome P450-1ike genes from a locust expressed sequence tag database （LocustDB）. Reverse transcription polymerase chain reaction （RT-PCR） analysis showed that most cytochrome P450-1ike genes displayed different tissue and developmental stage expression patterns. However, most of them were predominantly expressed in the midgnt, gastric caeca, fatbodies, and/or hindgut. Biochemical analysis showed that cytochrome P450 was differentially affected by three different insecticides. Deltamethrin caused significant inductions in 12 h at LD30 （dose to kill 30% of the tested individuals） in the nymphs, whereas malathion and carbaryl did not have significant effect on cytochrome P450 enzyme activity. Further RT-PCR analysis Showed significant increases of transcriptions of several cytochrome P450 genes in deltamethrin-treated locusts. Thus, the increased cytochrome P450 enzyme activity is likely due to increased transcriptions of multiple cytochrome P450 genes in response to deltamethrin exposure. These results are expected to help us better understand the interactions between insecticides and major detoxification enzymes, and possible changes of the susceptibility to other insecticides in deltamethrin-treated insects at various molecular levels.

关键词： cytochrome P450 monooxygenase deltamethrin gene expression profiling insecticide Locusta migratoria manilensis

多源信息融合的中药制造白术饮片多维质量属性一致性的诊断策略

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中国中药杂志 2024年第9期49卷 2434-2440页

作者：韩燕雨吴志生戴平王恺怡赵静张晓梦王晓萌王静郇星月郭新雨李楠姚璐王淑英王逸飞北京中医药大学中药学院北京102488 中药制药与新药开发教育部工程研究中心北京102488 福建中医药大学药学院福建福州350122 北京同仁堂股份有限公司北京100031 北京中医药大学房山医院北京102499

中药饮片的质量控制是中药产业的关键任务之一。该研究基于多源信息融合技术,收集近红外光谱、电子舌感官等信息,建立白术饮片的整体质量一致性评价方法,为白术饮片的整体质量评价提供方法支撑。以23批不同来源的白术样品为研究载体,分... 详细信息

中药饮片的质量控制是中药产业的关键任务之一。该研究基于多源信息融合技术,收集近红外光谱、电子舌感官等信息,建立白术饮片的整体质量一致性评价方法,为白术饮片的整体质量评价提供方法支撑。以23批不同来源的白术样品为研究载体,分别测定静止和运动状态下的近红外光谱信息,电子舌感官信息、水分及浸出物含量,采用多源信息融合技术评价白术饮片的整体质量。结果表明,批号16122103、801000509、801000352、701003656、HX21L01、160956为静止状态白术粉末的差异批次,批号701003298、16122103、701003656、701003107、801000229、18090404为运动状态的白术饮片的差异批次,含水量无差异批次,批号801000509为浸出物含量差异批次,批号150721004、151237、160703004、HX21M01、HX21K04、HX21K01、601003516为电子舌感官信号差异批次。进一步,采用数据层融合对白术饮片进行整体性分析,共发现批号150721004、HX21M01、HX21K04、HX21K01的样本超过95%控制限,与其他样品整体质量存在差异。该研究综合运用水分、近红外光谱等信息,成功对23批次的白术饮片进行差异批次的诊断,实现了质量一致性评价,为中药饮片质量一致性评价提供借鉴。

关键词：中药制造多源信息近红外白术一致性评价