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Effect of different drying methods on the amino acids,α-dicarbonyls and volatile compounds of rape bee pollen

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Food Science and Human Wellness 2024年第1期13卷 517-527页

作者： yanxiang Bi Jiabao ni xiaofeng Xue Zidan Zhou Wenli Tian Valérie Orsat Sha yan Wenjun Peng xiaoming Fang State Key Laboratory of Resource Insects Institute of Apicultural ResearchChinese Academy of Agricultural SciencesBeijing 100093China College of Engineering China Agricultural UniversityBeijing 100083China Bioresource Engineering Dept. McGill UniversitySte-Anne-de-Bellevue QC H9X 3V9Canada

The significant demand for high quality food has motivated us to adopt appropriate processing methods to improve the food nutritional quality and *** this study,the effects of five drying methods,namely,pulsed vacuum drying(PVD),freeze drying(FD),infrared drying(IRD),hot-air drying(HAD)and sun drying(SD)on free amino acids(FAAs),α-dicarbonyl compounds(α-DCs)and volatile compounds(VOCs)in rape bee pollen(RBP)were *** results showed that FD significantly released the essential amino acids(EAAs)compared with fresh samples while SD caused the highest *** was the dominantα-DCs in RBP and the highest loss was observed after *** were the dominant volatiles of RBP and SD samples contained more new volatile substances(especially aldehydes)than the other four drying ***,FD and PVD would be potential methods to effectively reduce the quality deterioration of RBP in the drying process.

关键词： Drying Bee pollen Free amino acids α-Dicarbonyl compounds Volatile compounds

Long-Term Effect of No-Tillage on Soil Organic Carbon Fractions in a Continuous Maize Cropping system of Northeast china

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Pedosphere 2010年第3期20卷 285-292页

作者： HUANG Shan sun yan-ni RUI Wen-Yi LIU Wu-Ren ZHANG Wei-Jian Institute of Applied Ecology Nanjing Agricultural University Nanjing 210095 (China) Jilin academy of Agricultural sciences Changchun 130124 (China) Centre for Agroecology & Farming systems Institute of Crop Science Chinese Academy of Agricultural Sciences Beijing100081 (China)

Increasing evidence has shown that conservation tillage is an effective agricultural practice to increase carbon （C） sequestration in soils. In order to understand the mechanisms underlying the responses of soil organic carbon （SOC） to tillage regimes, physical fractionation techniques were employed to evaluate the effect of long-term no-tillage （NT） on soil aggregation and SOC fractions. Results showed that NT increased the concentration of total SOC by 18.1% compared with conventional tillage （CT） under a long-term maize （Zea mays L.） cropping system in Northeast china. The proportion of soil large macroaggregates （〉 2 000 μm） was higher in NT than that in CT, while small macroaggregates （250-2 000μm） showed an opposite trend. Therefore, the total proportion of macroaggregates （〉 2 000 and 250-2 000μm） was not affected by tillage management. However, C concentrations of macroaggregates on a whole soil basis were higher under NT relative to CT, indicating that both the amount of aggregation and aggregate turnover affected C stabilization. Carbon concentrations of intra-aggregate particulate organic matter associated with microaggregates （iPOM-m） and microaggregates occluded within macroaggregates （iPOM-mM） in NT were 1.6 and 1.8 times greater than those in CT, respectively. Carbon proportions of iPOM-n and iPOM-mM in the total SOC increased from 5.4% and 6.3% in CT to 7.2% and 9.7% in NT, respectively. Furthermore, the difference in the microaggregate protected C （i. e., iPOM-m and iPOM-mM） between NT and CT could explain 45.4% of the difference in the whole SOC. The above results indicate that NT stimulates C accumulation within microaggregates which then are further acted upon in the soil to form macroaggregates. The shift of SOC within microaggregates is beneficial for long-term C sequestration in soil. We also corroborate that the microaggregate protected C is useful as a pool for assessing the impact of tillage management on SOC storage.

关键词： carbon sequestration conservation tillage particulate organic matter physical fractionation soil aggregates

Major types,characteristics and geodynamic mechanism of Upper Paleozoic copper deposits in northern Xinjiang,northwestern china

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Major types,characteristics and geodynamic mechanism of Uppe...

Liming reduces soil phosphorus availability but promotes yield and P uptake in a double rice cropping system

中国科学院地质与地球物理研究所2006学术年会

作者： Chunming Han~a,Wenjiao xiao~3,Guochun Zhao~b,Jingwen Mao~c,Sanzhong Li~d, Zhen yan~a,Qigui Mao~a a State Key Laboratory of Lithospheric Evolution,Institute of Geology and Geophysics,chinese academy of sciences.beijing 100029,P.R.china b Department of Earth sciences.The University of Hong Kong,Pokfulam Road,Hong Kong,china c Institute of Mineral Deposits,chinese academy of Geological sciences.26 Baiwanzhuang Road,beijing, 100037,P.R.china d College of Marine Geosciences.Ocean University of china,Qingdao 266003,Shangdong,P.R.china

Syn- and post-orogenic Cu mineralization in the northern Xinjiang Paleozoic accretionary and collisional orogenic belt in northwestern china is of great economic interest. About 40 Cu-bearing deposits have been discovered in the area,making it one of the most important metallogenic belts in *** to their host rocks,these deposits can be classified into four principal types:(1) volcanic-hosted massive sulfide Cu-Pb-Zn deposits;(2) porphyry Cu-Mo-(Au) deposits;(3) magmatic Cu-ni sulfide deposits;and(4) Cu-Mo-Au-Ag skarn ***,the development of these Upper Paleozoic deposits was closely associated with subduction and collision of the ancient Asian Ocean between the Siberian Block and the Tarim *** important metallogenic epoch involving formation of Cu-Pb-Zn-polymetallic deposits formed during southwestern rollback and associated slab-detachment during Devonian time(400-370 Ma).In southern Altay,southwestern-direct rollback and associated slab-detachment occurred during the Devonian(400-370 Ma),in response to later collision at the accreted continetal margin[xiao,W.J.,Windley,B.F.,Badarch,G.,sun,S., Li,J.L.,Qin,K.Z.,Wang,Z.H.,*** accretionary and convergent tectonics of the southern Altaids:implications for the lateral growth of Central *** of the Geological Society of London 161,339-342],during which the Ashele Cu-Pb-Zn and Keketale Pb-Zn deposits *** led to the accretion of the Junggar Ocean arc system in the Middle *** the Lower to Middle Carboniferous,north-dipping subduction beneath the Dananhu arc triggered the emplacement of granitic porphyries in the Tousuquan and Dananhu island arc belt in the east Tianshan,leading to the formation of the Tuwu and yandong porphyry Cu-Mo-Au-Ag *** the Upper Carboniferous to Lower Permian,large mafic-ultramafic complexes were emplaced during closure of the ancient Tianshan Ocean,resulting in the formation of several magmatic Cu-ni sulfide deposi

关键词： Copper deposits Metallogenic belts Tectonic setting Xinjiang china

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Journal of Integrative Agriculture 2020年第11期19卷 2807-2814页

作者： LIAO Ping Mart BHROS Natasja VAN GESTEL sun yan-ni ZHANG Jun HUANG Shan ZENG Yong-jun WU Zi-ming Kees Jan VAN GROEniGEN Key Laboratory of Crop Physiology Ecology and Genetic BreedingMinistry of Education/Jiangxi Agricultural UniversityNanchang 330045P.R.China Wageningen Environmental Research Wageningen University&ResearchWageningen 6700 AAthe Netherlands Department of Biological sciences Texas Tech UniversityLubbockTX 79409USA Institute of Crop sciences Chinese Academy of Agricultural SciencesBeijing 100081P.R.China Department of Geography College of Life and Environmental SciencesUniversity of ExeterExeter EX44 RJUK

Liming is often applied to alleviate soil acidification and increase crop yield on acidic soils,but its effect on soil phosphorus(P)availability is unclear,particularly in rice *** objective of this study was to examine the effect of liming on rice production,yield and P uptake in a three-year field experiment in a double rice cropping system in subtropical *** also conducted an incubation experiment to investigate the direct effect of liming on soil available P and phosphatase activities on paddy soils in the absence of *** the incubation experiment,liming reduced soil P availability(measured as Olsenextractable P)by 14–17%and inhibited the activity of soil acid ***,lime application increased grain yield,biomass,and P uptake in the *** increased grain yield and P uptake more strongly for late rice(26 and 21%,respectively)than for early rice(15 and 8%,respectively).Liming reduced the concentration of soil available P in the field as well,reflecting the increase in rice P uptake and the direct negative effect of liming on soil P *** together,these results suggest that by stimulating rice growth,liming can overcome direct negative effects on soil P availability and increase plant P uptake in this acidic paddy soil where P is not the limiting factor.

关键词： crop yield subtropical phosphatase activity phosphorus availability soil acidification

ENSO hindcast skill of the IAP-DecPreS near-term climate prediction system:comparison of full-field and anomaly initialization

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Atmospheric and Oceanic Science Letters 2018年第1期11卷 54-62页

作者： sun Qian WU Bo ZHOU Tian-Jun yan Zi-Xiang College of Atmospheric Science Chengdu University of Information TechnologyChengduChina Leshan Central Station of Environment Monitoring LeshanChina LASG Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Atmospheric Science Nanjing University of Information Science and TechnologyNanjingChina

Model initialization is a key process of climate predictions using dynamical models. In this study, the authors evaluated the performances of two distinct initialization approaches--anomaly and full-field initializations--in ENSO predictions conducted using the IAP-DecPreS near-term climate prediction system developed by the Institute of Atmospheric Physics （lAP）. IAP-DecPreS is composed of the FGOALS-s2 coupled general circulation model and a newly developed ocean data assimilation scheme called＇ensemble optimal interpolation-incremental analysis update＇（EnOI-IAU）. It was found that, for IAP-DecPreS, the hindcast runs using the anomaly initialization have higher predictive skills for both conventional ENSO and El nino Modoki, as compared to using the full-field initialization. The anomaly hindcasts can predict super El nino/La nina 10 months in advance and have good skill for most moderate and weak ENSO events about 4-7 months in *** predictive skill of the anomaly hindcasts for El nino Modoki is close to that for conventional ENSO. On the other hand, the anomaly hindcasts at 1- and 4-month lead time can reproduce the major features of large-scale patterns of sea surface temperature, precipitation and atmospheric circulation anomalies during conventional ENSO and El nino Modoki winter.

关键词： Near-term climate predictionsystem ENSO prediction anomaly initialization full-field initialization coupledgeneral circulation model

GDSL esterase/lipases OsGELP34 and OsGELP110/OsGELP115 are essential for rice pollen development

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Journal of Integrative Plant Biology 2020年第10期62卷 1574-1593页

作者： Huihui Zhang Menglong Wang Yiqi Li Wei yan Zhenyi Chang Haoling ni Zhufeng Chen Jianxin Wu Chunjue Xu Xing Wang Deng xiaoyan Tang Guangdong Provincial Key Laboratory of Biotechnology for Plant Development School of Life SciencesSouth China Normal UniversityGuangzhou 510631China Shenzhen Institute of Molecular Crop Design Shenzhen 518107China School of Life sciences Capital Normal UniversityBeijing 100048China School of Life sciences Southern University of Science and TechnologyShenzhen 518055China

Pollen exine contains complex biopolymers of aliphatic lipids and *** development of pollen exine often leads to plant *** mechanisms regulating exine formation have been studied extensively but remain *** we report the analyses of three GDSL esterase/lipase protein genes,OsGELP34,OsGELP110,and OsGELP115,for rice exine ***34 was identified by cloning of a male sterile mutant ***34 encodes an endoplasmic reticulum protein and was mainly expressed in anthers during pollen exine ***34 mutant displayed abnormal exine and altered expression of a number of key genes required for pollen ***110 was previously identified as a gene differentially expressed in meiotic ***110 was most homologous to OsGELP115,and the two genes showed similar gene expression *** OsGELP110 and OsGELP115 proteins were localized in *** knockout of OsGELP110 and OsGELP115 did not affect the plant fertility,but double knockout of both genes altered the exine structure and rendered the plant male ***34 is distant from OsGELP110 and OsGELP115 in sequence,and osgelp34 and osgelp110/osgelp115 mutants were different in anther morphology despite both were male *** results suggested that OsGELP34 and OsGELP110/OsGELP115 catalyze different compounds for pollen exine development.

关键词： development. sterile render

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虚拟模板分子印迹材料固相萃取磺胺类抗生素

化学试剂 2022年第9期44卷 1314-1324页

作者：王艺晓孙宏宵王莉燕纪灵孙大妮刘惠涛宋志花李金花中国科学院烟台海岸带研究所山东省海岸带环境工程技术研究中心中国科学院海岸带环境过程与生态修复重点实验室山东省海岸带环境过程重点实验室山东烟台264003 烟台大学环境与材料工程学院山东烟台264005 烟台大学药学院分子药理和药物评价教育部重点实验室新型制剂与生物技术药物研究山东省高校协同创新中心山东烟台264005 烟台大学化学化工学院山东烟台264005 国家海洋局烟台海洋环境监测中心站山东烟台264006 中国科学院大学北京100049

以磺胺苯(SZ)为虚拟模板,一步沉淀聚合制备虚拟模板分子印迹聚合物(DMIPs)材料,用于同时分散固相萃取(DSPE)水样中4种磺胺类(SAs)抗生素,结合HPLC-UV进行测定。对DMIPs进行表征与吸附性能评价,其对4种SAs的最大吸附量为21.97~30.24 mg/g... 详细信息

以磺胺苯(SZ)为虚拟模板,一步沉淀聚合制备虚拟模板分子印迹聚合物(DMIPs)材料,用于同时分散固相萃取(DSPE)水样中4种磺胺类(SAs)抗生素,结合HPLC-UV进行测定。对DMIPs进行表征与吸附性能评价,其对4种SAs的最大吸附量为21.97~30.24 mg/g,印迹因子均大于2.1。优化DMIPs用量、萃取时间、样品溶液pH等,确定最佳DSPE和HPLC条件。在湖水、海水、自来水中评价方法的分析性能,得到3种水样中的线性范围为1~200μg/L、检出限0.27~0.64μg/L和定量限0.96~2.14μg/L。基质效应(ME%≤6%)结果表明DMIPs-DSPE有效消除了复杂基质干扰,提高了检测准确度。4种SAs在3种水样中的回收率为93.8%~102.6%,相对标准偏差(RSD)为2.6%~7.0%。该DMIPs-DSPE-HPLC-UV法简单快速、灵敏准确,适于复杂样品中痕量SAs多残留分析。

关键词：磺胺类抗生素分子印迹聚合物虚拟模板固相萃取环境水样高效液相色谱

Small P values may not yield robust findings:an example using REST-meta-PD

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Science Bulletin 2021年第21期66卷 2148-2152,M0003页

作者： Xi-Ze Jia Na Zhao Hao-Ming Dong Jia-Wei sun Marek Barton Roxana Burciu nicolas Carrière Antonio Cerasa Bo-Yu Chen Jun Chen Stephen Coombes Luc Defebvre Christine Delmaire Kathy Dujardin Fabrizio Esposito Guo-Guang Fan Federica Di Nardo Yi-Xuan Feng Brett W.Fling Saurabh Garg Moran Gilat Martin Gorges Shu-Leong Ho Fay BHorak xiao Hu xiao-Fei Hu Biao Huang Pei-Yu Huang Ze-Juan Jia Christina Jones Jan Kassubek Lenka Krajcovicova Ajay Kurani Jing Li Qing Li Ai-Ping Liu Bo Liu Hu Liu Wei-Guo Liu Renaud Lopes Yu-Ting Lou Wei Luo Tara Madhyastha ni-ni Mao Grainne McAlonan Martin J.McKeown Shirley Pang Andrea Quattrone Irena Rektorova Alessia Sarica Hui-Fang Shang James M.Shine Priyank Shukla Tomas Slavicek xiao-Peng Song Gioacchino Tedeschi Alessandro Tessitore David Vaillancourt Jian Wang Jue Wang Z.Jane Wang Lu-Qing Wei Xia Wu xiao-Jun Xu Lei yan Jing yang Wan-Qun yang Nai-Lin Yao De-Long Zhang Jiu-Quan Zhang Min-Ming Zhang yan-Ling Zhang Cai-Hong Zhou Chao-Gan yan Xi-nian Zuo Mark Hallett Tao Wu Yu-Feng Zang Center for Cognition and Brain Disorders the Affiliated HospitalHangzhou Normal UniversityHangzhou 310015China Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments Hangzhou 311121China National Basic Science Data Center Beijing 100190China State Key Laboratory of Cognitive Neuroscience and Learning&McGovern Institute for Brain Research Beijing Normal UniversityBeijing 100875China School of Information and Electronics Technology Jiamusi UniversityJiamusi 154007China Neuroscience Program Central European Institute of TechnologyCEITECMasaryk UniversityBrno 62500Czech Republic Department of Applied Physiology and Kinesiology University of FloridaGainesville FL 32611USA Univ.Lille InsermCHU LilleU1172-LilNCog-Lille Neuroscience&CognitionLille F-59000France The Institute for Biomedical Research and Innovation National Research CouncilMangone CS 87050Italy Department of Radiology The First Affiliated Hospital of China Medical UniversityShenyang 110001China Department of Radiology Guangdong Provincial Hospital of Chinese MedicineGuangzhou 510120China Department of Medicine Surgery and DentistryScuola Medica SalernitanaUniversity of SalernoFiscianoSA 132-84084Italy Department of Advanced Medical and Surgery sciences University of Campania“Luigi Vanvitelli”Caserta 81100Italy Eye Center of the 2nd Affiliated Hospital Medical College of Zhejiang UniversityHangzhou 310020China Zhejiang Provincial Key Lab of Ophthalmology Hangzhou 310020China Department of Health and Exercise Science Colorado State UniversityFort Collins CO 80523USA Pacific Parkinson’s Research Centre University of British ColumbiaVancouver BC V6E 2M6Canada Department of Medicine(Neurology)University of British Columbia Vancouver BC V6T 1B7Canada Brain and Mind Center The University of SydneySydney NSW 2006Australia Department of Neurology Ulm UniversityUlm 89081Germany Division of Neurology Department of MedicineQueen Mary HospitalUniversity of Hong KongHong Kong 999077China Department of

Thousands of resting state functional magnetic resonance imaging(RS-f MRI)articles have been published on brain *** precise localization of abnormal brain activity,a voxel-level comparison is *** of the large number of voxels in the brain,multiple comparison correction(MCC)must be performed to reduce false positive rates,and a smaller P value(usually including either liberal or stringent MCC)is widely recommended[1].

关键词：帕金森病 precise correction

Scalable and ultrafast epitaxial growth of single-crystal graphene wafers for electrically tunable liquid-crystal microlens arrays

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Science Bulletin 2019年第10期64卷 659-668页

作者： Bing Deng Zhaowei Xin Ruiwen Xue Shishu Zhang xiaozhi Xu Jing Gao Jilin Tang Yue Qi yani Wang yan Zhao Luzhao sun Huihui Wang Kaihui Liu Mark H. Rummeli Lu-Tao Weng Zhengtang Luo Lianming Tong Xinyu Zhang Changsheng Xie Zhongfan Liu Hailin Peng Center for Nanochemistry (CNC) Beijing Science and Engineering Center for Nanocarbons Beijing National Laboratory for Molecular Sciences (BNLMS) College of Chemistry and Molecular Engineering Peking University Beijing 100871 China beijing Graphene Institute (BCl) Beijing 100094 China Wuhan National Laboratory for Optoelectronics School of Automation National Key Laboratory of Science and Technology on Multispectral Information Processing Huazhong University of Science & Technology Wuhan 430074 China Department of Chemical and Biological Engineering Materials Characterization and Preparation Facility The Hong Kong University of Science and Technology Hong Kong 999077 China State Key Laboratory for Mesoscopic Physics School of Physics Peking University Beijing 100871 China Institute of Functional Nano and Soft Materials (FUNSOM) J iangsu Key Laboratory for Carbon-Based Functional Materials and Devices and Joint International Research Laboratory of Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China academy for Advanced Interdisciplinary Studies Peking University Beijing 100871 China Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province College of Energy Soochow Institute for Energy and Materials Innovations Soochow University Suzhou 215006 China Centre of Polymer and Carbon Materials Polish Academy of Sciences Zabrze 41-819 Poland Wuhan National Laboratory for Optoelectronics Huazhong University of Science & Technology Wuhan 430074 China

The scalable growth of wafer-sized single-crystal graphene in an energy-efficient manner and compatible with wafer process is critical for the killer applications of graphene in high-performance electronics and optoelectronics. Here, ultrafast epitaxial growth of single-crystal graphene wafers is realized on singlecrystal Cu90ni10(1 1 1) thin films fabricated by a tailored two-step magnetron sputtering and recrystallization process. The minor nickel(ni) content greatly enhances the catalytic activity of Cu, rendering the growth of a 4 in. single-crystal monolayer graphene wafer in 10 min on Cu90ni10(1 1 1), 50 folds faster than graphene growth on Cu(1 1 1). Through the carbon isotope labeling experiments, graphene growth on Cu90ni10(1 1 1) is proved to be exclusively surface-reaction dominated, which is ascribed to the Cu surface enrichment in the Cu ni alloy, as indicated by element in-depth profile. One of the best benefits of our protocol is the compatibility with wafer process and excellent scalability. A pilot-scale chemical vapor deposition(CVD) system is designed and built for the mass production of single-crystal graphene wafers, with productivity of 25 pieces in one process cycle. Furthermore, we demonstrate the application of single-crystal graphene in electrically controlled liquid-crystal microlens arrays(LCMLA), which exhibit highly tunable focal lengths near 2 mm under small driving voltages. By integration of the graphene based LCMLA and a CMOS sensor, a prototype camera is proposed that is available for simultaneous light-field and light intensity imaging. The single-crystal graphene wafers could hold great promising for highperformance electronics and optoelectronics that are compatible with wafer process.

关键词： Graphene Ultrafast growth Cuni(1 1 1)thin film Single crystal wafer Liquid crystal microlens arrays