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Total phenolic, flavonoid content, and antioxidant activity of flour, noodles, and steamed bread made from different colored wheat grains by three milling methods

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The Crop Journal 2015年第4期3卷 328-334页

作者： Yaoguang Li Dongyun Ma Dexiang Sun Chenyang Wang Jian Zhang yingxin xie Tiancai Guo Agronomy College National Engineering Research Center for Wheat Henan Agricultural University The Collaborative Innovation Center of Henan Food Crops Henan Agricultural University Institute of Food Science and Technology Henan Agricultural University

The objective of this study was to evaluate the effects of wheat variety, food processing, and milling method on antioxidant properties. Black wheat variety Heibaoshi 1 had the highest total phenolic content(659.8 μg gallic acid equivalents g-1), total flavonoid content(319.3 μg rutin equivalents g-1), and antioxidant activity, whereas light purple wheat variety Shandongzimai 1 had the lowest total flavonoid content(236.2 μg rutin equivalents g-1) and antioxidant activity. Whole wheat flour and partially debranned grain flour had significantly higher total phenolic contents, total flavonoid contents, and antioxidant activity than refined flour(P < 0.05). Compared with flour, total phenolic contents, total flavonoid contents and antioxidant activity decreased in noodles and steamed bread, whereas noodles had slightly higher total phenolic and flavonoid content than steamed bread. Antioxidant activities(by ferric reducing ability of plasma assay) of steamed bread made from whole wheat flour, partially debranned grain flour, and refined flour were 23.5%, 21.1%, and 31.6% lower, respectively, than the corresponding values of flour. These results suggested that black whole wheat flour and partially debranned grain flour are beneficial to human health.

关键词： Total phenolic content Total flavonoid content Milling method Antioxidant activity Colored wheat

Electrically tunable planar liquid-crystal singlets for simultaneous spectrometry and imaging

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Light(Science & Applications) 2024年第11期13卷 2589-2598页

作者： Zhou Zhou Yiheng Zhang yingxin xie Tian Huang Zile Li Peng Chen Yan-qing Lu Shaohua Yu Shuang Zhang Guoxing Zheng Electronic Information School and School of MicroelectronicsWuhan UniversityWuhan 430072China NUS Graduate School National University of SingaporeSingapore 119077Singapore Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore National Laboratory of Solid State Microstructures Key Laboratory of Intelligent Optical Sensing and Manipulationand College of Engineering and Applied SciencesNanjing UniversityNanjing 210093China Peng Cheng Laboratory Shenzhen 518055China New Cornerstone Science Laboratory Department of PhysicsUniversity of Hong KongHong KongChina Department of Electrical and Electronic Engineering University of Hong KongHong KongChina Wuhan Institute of Quantum Technology Wuhan 430206China

Conventional hyperspectral cameras cascade lenses and spectrometers to acquire the spectral datacube,which forms the fundamental framework for hyperspectral ***,this cascading framework involves tradeoffs among spectral and imaging performances when the system is driven toward ***,we propose a spectral singlet lens that unifies optical imaging and computational spectrometry functions,enabling the creation of minimalist,miniaturized and high-performance hyperspectral *** a paradigm,we capitalize on planar liquid crystal optics to implement the proposed framework,with each liquid-crystal unit cell acting as both phase modulator and electrically tunable spectral *** with various targets show that the resulting millimeter-scale hyperspectral camera exhibits both high spectral fidelity(>95%)and high spatial resolutions(~1.7 times the diffraction limit).The proposed“two-in-one”framework can resolve the conflicts between spectral and imaging resolutions,which paves a practical pathway for advancing hyperspectral imaging systems toward miniaturization and portable applications.

关键词： crystal planar singlet

Physiological mechanisms underlying reduced photosynthesis in wheat leaves grown in the field under conditions of nitrogen and water deficiency

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The Crop Journal 2023年第2期11卷 638-650页

作者： Juan Kang Yingying Chu Geng Ma Yanfei Zhang Xiaoyan Zhang Mao Wang Hongfang Lu Lifang Wang Guozhang Kang Dongyun Ma yingxin xie Chenyang Wang College of Agronomy&State Key Laboratory of Wheat and Maize Crop Science Henan Agricultural UniversityZhengzhou 450046HenanChina National Engineering Research Center for Wheat Henan Agricultural UniversityZhengzhou 450046HenanChina

Reduced photosynthesis results directly from nitrogen or water deficiency in wheat plants,and leads to a decrease in grain *** this study,by measuring the effects of water and N deficiencies,both individually and combined,we characterized the responses of wheat(Triticum aestivum *** 49-198)plants to these two deficiencies using physiological measurements and comparative *** decreases in grain yield and leaf photosynthetic performance were observed in all deficiency conditions,and 106 photosynthetic proteins that showed responses were *** deficiency induced the least change in photosynthetic proteins,and similar changes in most of these proteins were also observed for the combined nitrogen and water *** deficiency induced the largest change in photosynthetic proteins and resulted in the lowest 1000-kernel *** decreases in photosynthesis in both the water-deficiency and combined N and water deficiency groups were reflected mainly in an imbalanced ATP/NADPH ratio associated with the light reaction,which influences carbon metabolism in the Calvin *** was respectively stimulated or inhibited by N or water deficiency,while suppression of photorespiratory flux and activation of nitrogen recycling were observed in the combined N and water deficiency *** of photosynthetic proteins between experimental sites suggested that precipitation affected linear electron flow in the photoreaction,and thus photosynthetic *** results provide a baseline for future studies of the roles of these photosynthetic proteins in the response to N or water deficiency and their effect on 1000-kernel weight.

关键词： Wheat Photosynthesis Nitrogen Water Proteomics

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三容对象临界比例度法的参数计算与仿真实验

实验室研究与探索 2020年第6期39卷 102-107页

作者：彭程谢迎新华北科技学院电子信息工程学院河北三河065201

为使学生更好地理解和掌握临界比例度法,以有自衡特性和无自衡特性3容对象为例,在理论证明的基础上,设计了临界比例度法计算机仿真实验。理论部分从奈奎斯特稳定判据、劳斯稳定判据和根轨迹法3种不同角度出发,建立临界比例度法参数与3... 详细信息

为使学生更好地理解和掌握临界比例度法,以有自衡特性和无自衡特性3容对象为例,在理论证明的基础上,设计了临界比例度法计算机仿真实验。理论部分从奈奎斯特稳定判据、劳斯稳定判据和根轨迹法3种不同角度出发,建立临界比例度法参数与3容对象模型参数之间的显函数关系。实验部分使用Matlab/Simulink软件模拟临界比例度法的PID参数调节过程,并使用理论值进行验证。上述计算机仿真中加入理论分析证明的教学方式有助于提升学生理论分析和实践两方面的能力。

关键词：临界比例度法仿真奈奎斯特稳定判据劳斯稳定判据根轨迹法

围栏封育高寒草地植物地上生物量和物种多样性对关键调控因子的响应

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草业科学 2019年第4期36卷 1000-1009页

作者：陈智勇谢迎新刘苗河南农业大学农学院河南郑州450002 中国科学院地理科学与资源研究所北京100101

高寒草地退化日益严重,且限制区域的可持续发展。本研究分析了围栏恢复措施下土壤理化性质的变化对地上生物量和群落多样性的影响,探讨退化草地植物恢复中的关键调控因子。通过对西藏申扎地区退化草地4、5、7、8和9年的围栏样地调查分... 详细信息

高寒草地退化日益严重,且限制区域的可持续发展。本研究分析了围栏恢复措施下土壤理化性质的变化对地上生物量和群落多样性的影响,探讨退化草地植物恢复中的关键调控因子。通过对西藏申扎地区退化草地4、5、7、8和9年的围栏样地调查分析发现:1)退化草地生物多样性、地上生物量和植被盖度均随着围栏年限的增加而先增加后减少,围栏年限为7年时出现拐点;2)土壤含水量、土壤有机质、速效氮和全氮对地上生物量和生物多样性有显著正效应(P <0.05),而土壤pH和容重对地上生物量和生物多样性都表现出显著的负相关关系(P <0.05)。可知,保持或者提升土壤水分和养分是退化草地恢复关键过程,此外,藏北申扎地区退化地恢复的最优围栏年限为7年左右。

关键词：围栏封育群落多样性土壤理化性质地上生物量调控因子

经腹联合经会阴超声诊断溃疡性结肠炎患者回肠储袋肛管吻合术后储袋炎封套炎1例

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中华超声影像学杂志 2023年第2期32卷 176-178页

作者：刘翠景谢迎新赵雅培河北医科大学第二医院东院区超声科石家庄050035

患者男, 16岁, 主因确诊溃疡性结肠炎(ulcerative colitis, UC)2年, 全结直肠切除(total proctocolectmy, TPC)+回肠储袋肛管吻合(ileal pouch-anal anastomosis, IPAA)术后8个月, 便血8 d入院。查体:营养不良, 体质指数(body mass index, BMI)16.03 kg/m^(2), 心肺腹未见异常。超声所见:排便后储袋左右径约78 mm, 前后径约56 mm, 储袋肠壁最厚处约9 mm, 层次结构消失, 回声减低, 右后壁见一宽约6 mm低回声, 并向右后方软组织延续, 形成长约18 mm条形低回声, 边界不清, 形态不规则;封套肠壁最厚处约10 mm, 层次结构消失, 回声减低。彩色多普勒血流显像(color Doppler flow imaging, CDFI):储袋及封套肠壁内可见与肠系膜相连的丰富条带状血流信号(Limberg Ⅳ级)。超声提示:储袋扩张;储袋、封套肠壁增厚, 血流丰富;储袋内瘘形成可能(图1~4)。盆腔MRI提示:储袋扩张;储袋壁增厚;储袋积液或积血;考虑储袋溃疡伴内瘘形成(图5)。电子肠镜显示:储袋及封套黏膜弥漫性水肿、糜烂, 易出血, 可见数处深溃疡;距肛缘约50 mm处可见长约12 mm纵行溃疡, 溃疡旁见一长径约4 mm瘘口, 距肛缘约30 mm处可见吻合口, 提示UC IPAA术后改变;储袋炎、封套炎(图6, 7)。组织病理(HE染色):黏膜慢性活动性炎, 以浆细胞为主(储袋, 活检);急性炎性渗出及炎性肉芽组织(封套, 活检)。入院诊断:UC TPC+IPAA术后;储袋炎、封套炎、吻合口瘘;营养不良。

关键词：溃疡性结肠炎回肠储袋肛管吻合术经会阴超声

基于快速SVDD的无线传感器网络Outlier检测

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仪器仪表学报 2011年第1期32卷 46-51页

作者：谢迎新陈祥光余向明岳彬郭静北京理工大学化工与环境学院北京100081 空军油料研究所北京100076

Outlier是基于无线传感器网络的数据收集应用中常见的数据故障类型,严重影响数据质量。本文提出一种基于快速SVDD的无线传感器网络Outlier检测方法,其基本思想是:首先利用快速SVDD算法获得包含正常样本的最小球形边界,然后通过该边界判... 详细信息

Outlier是基于无线传感器网络的数据收集应用中常见的数据故障类型,严重影响数据质量。本文提出一种基于快速SVDD的无线传感器网络Outlier检测方法,其基本思想是:首先利用快速SVDD算法获得包含正常样本的最小球形边界,然后通过该边界判断未知样本的类别,本法采用训练集约减策略和基于二阶逼近的SMO算法来加速SVDD的训练。基于合成数据和真实数据的仿真实验表明,该方法在确保分类精度的同时,运行速度快,内存开销小,适用于资源有限的无线传感器网络。

关键词：无线传感器网络 Outlier检测 SVDD 训练集约简 SMO算法