Results 21 to 30 of about 6,215 (154)
Zhongguo youzhi, 2022 对碱提酸沉法提取微胚乳玉米蛋白的工艺条件进行优化，并分析其分子质量分布和氨基酸组成。以微胚乳玉米为原料，采用碱提酸沉法提取其中的蛋白质，以玉米蛋白得率为指标，采用单因素试验考察了料液比、提取pH、提取温度和提取时间的影响，采用响应面试验进一步对微胚乳玉米蛋白提取的工艺条件进行了优化。采用SDS-PAGE和氨基酸组成分析比较了最优条件下提取的微胚乳玉米蛋白与普通玉米蛋白的差异。结果表明:微胚乳玉米蛋白的最优提取工艺条件为料液比1∶ 15、提取pH 11.5、提取温度50 ℃、提取时间60 min ...
卫萍，张雅媛，游向荣，邓静友，周葵，杨兆杏 WEI Ping, ZHANG Yayuan, YOU Xiangrong, DENG Jingyou, ZHOU Kui, YANG Zhaoxing
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Antioxidative Effects of Total Flavonoids Extract from Corn Silk on Dried Pork Slices(玉米须总黄酮提取物对猪肉脯抗氧化性影响的研究) [PDF]
Shipin kexue jishu xuebao, 2018 The total flavonoids were extracted from corn silk. The IC50 of ·OH and DPPH radical scavenging of purified total flavonoid were 0.155mg/mL and 0.049mg/mL.The total flavonoids were added to dried pork slices and the antioxidant activity of total ...
HU Jiahui(胡佳慧) +9 more
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Shuitu Baochi Xuebao, 2006 通过盆栽模拟干旱试验，测定了干旱胁迫下玉米根系生长情况和根际土壤中速效N、P、K的含量。结果表明，干旱胁迫抑制了玉米拔节期和抽雄-开花期玉米根系的生长，减弱了玉米根系的吸收能力。干旱胁追下玉米根际NH4^＋-N、NO3^--N、速效P和速效K均发生根际富集现象。其中有效N和速效K含量高于正常供水．而速效P却呈现低于正常供水的趋势。干旱胁追抑制玉米根系生长、减弱根系吸收能力是玉米减产的重要原因。
韩希英, 宋凤斌
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Shuitu Baochi Xuebao, 2005 三峡库区春玉米盆栽水肥耦合试验研究结果表明，水分胁迫导致玉米株高和叶面积指数降低，以拔节期受到影响最大；玉米产量与生物量呈显著正相关关系，产量与根重无显著正相关关系；水氮耦合效应显著，适宜水分和中氮处理下玉米的产量最高，玉米生长发育对氮肥的吸收存在一定的阈值，过多施用氮肥会加剧土壤干旱和作物干旱，水和钾耦合效应对玉米产量影响不显著；水分是影响玉米产量的主导因素，其次是氮效应和钾效应。
吕刚 史东梅
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, 2012 以水稻、高粱和玉米为研究对象,考察了微囊藻毒素对受试作物的毒性差异,研究了不同浓度MC对萌发及萌发初期生长发育的影响,不同灌溉时期对受试作物生长发育的影响,检测指标包括发芽率、株高、鲜重、叶绿素、根系活力等。结果表明,受试作物对微囊藻毒素毒性并不一致,水稻发芽率受到明显抑制,高粱发芽率基本不受影响,玉米出现了低浓度促进、高浓度抑制的现象;MC对水滔、高粱和玉米的光合作用、株高和鲜重没有抑制作用,反而有一定的促进效果;不同灌溉时间条件下的研究结果表明,萌发前对高粱和玉米染毒会明显抑制植株根系活力 ...
刘剑彤, 刘碧波, 吴烨, 耿俊杰
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Spatially Downscaling of Future Food Demand for Policy Planning
World Food Policy, Volume 12, Issue 1, May 2026.ABSTRACT Understanding the subnational dynamics of food demand, while accounting for the evolution of the agrifood system at the global level, remains a challenge for designing food policy to ensure food security. To link global agrifood systems with subnational food policy planning, we downscale per capita food demand for 62 food commodities at the ...
Chun Song +3 more
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不同脂肪源对异育银鲫的生长、体组成和肌肉脂肪酸的影响 [PDF]
, 2011 配制了十种等氮等能的饲料饲喂3.53 g的异育银鲫幼鱼12周,探讨异育银鲫对不同脂肪源的利用效果。十种饲料中分别添加8%的鱼油(FO)、椰子油(CNO)、玉米油(CO)、亚麻油(LO)、大豆油(SO)、菜籽油(RO)、1∶1鱼油-椰子油(FCNO)、1∶1鱼油-玉米油(FCO)、1∶1鱼油-亚麻油(FLO)和1∶1∶1∶1鱼油-椰子油-玉米油-亚麻油混合油(MIX)。每组饲料三个平行,每个平行30尾。实验在循环水养殖系统中进行,水温控制在(24±1)℃。结果表明,在单一脂肪源中 ...
朱晓鸣 +4 more
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Veterinary Dermatology, Volume 37, Issue 2, Page 247-256, April 2026.ABSTRACT Background Identification of offending foods in dogs with adverse food reactions is usually based on “deterioration” during open food challenges. Objectives To examine the placebo effect during double‐blinded, placebo‐controlled food challenges using a predefined set of criteria for relapse.
Evi I. Sofou +4 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang +4 more
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Zhongguo youzhi, 2022 为促进微胚乳玉米醇溶蛋白的开发和应用，以微胚乳玉米为原料，分别采用乙醇浸提法和超声波辅助乙醇浸提法提取玉米醇溶蛋白，通过单因素实验优化工艺条件，并对微胚乳玉米醇溶蛋白的氨基酸组成进行分析。结果表明：乙醇浸提法提取微胚乳玉米醇溶蛋白的最优工艺条件为提取温度50 ℃，提取时间 2.0 h，乙醇体积分数80%，料液比1∶ 12；超声波辅助乙醇浸提法提取微胚乳玉米醇溶蛋白的最优工艺条件为乙醇体积分数80%,超声时间40 min，料液比1∶ 20，超声功率500 W。在各自最优条件下 ...
张泽英1，付思晗2，谢军波2 ZHANG Zeying1，FU Sihan2，XIE Junbo2
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