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相关概念视频

Moisture Content and Bulking of Aggregate01:10

Moisture Content and Bulking of Aggregate

409
The moisture content of aggregates is a crucial factor in construction, particularly in concrete mixing, as it influences the total water required in the mix. Moisture content represents the water coated on the exterior surface of the aggregate existing in a saturated and surface-dry condition. The total water content of a moist aggregate is the sum of its moisture content and water absorption.
When aggregates are exposed to rain or sit in stockpiles, they absorb moisture, which must be...
409

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相关实验视频

Updated: Jan 12, 2026

HPLC Coupled with Chemical Fingerprinting for Multi-Pattern Recognition for Identifying the Authenticity of Clematidis Armandii Caulis
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多维成分定量分析:在中国探索商业果品种.

Jingtao Cui1, Yanchi Zhou2, Xue Lin2

  • 1School of Food Science and Engineering, Hainan University, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety, State Administration for Market Regulation, Haikou 570228, China; Baoting Research Institute of Hainan University, Baoting 572300, China.

Food chemistry
|November 5, 2025
PubMed
概括

由于代谢物中的遗传差异,果的质量和营养因品种而异. 这项研究确定了用于选择优质果品种的关键化合物和生物标志物.

关键词:
在体外抗氧化活性.曼吉弗拉指南 L. 曼吉弗拉指南 L.多元组件分析多元组件分析植物化学品 植物化学品随机森林分析 随机森林分析

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科学领域:

  • 农业科学 农业科学
  • 食品科学 食品科学 食品科学
  • 生物化学 生物化学

背景情况:

  • 果品种在食品质量和营养成分方面表现出显著的差异.
  • 这些差异影响了市场性和消费者的吸引力.
  • 基因型驱动的代谢物变异被假设是潜在的原因.

研究的目的:

  • 调查果品种中基因型和代谢物概况之间的关系.
  • 评估物理化学特征,营养成分,味道化合物,植物化学物质和抗氧化能力.
  • 为了确定果质量差异化的关键生物标志物.

主要方法:

  • 对12种主要的中国果品种进行系统评估.
  • 对物理化学特征,营养成分和生物活性化合物的定量分析.
  • 整合机器学习,包括随机森林建模,用于生物标记物识别.

主要成果:

  • 在各品种之间观察到总可溶糖,黄酸,有机酸,胡卜素和多醇的显著变化.
  • 凯特品种在糖和黄酸中脱而出; 舒/黄在有机酸中; 吉丹在胡卜素中; 果在多和抗氧化活性中.
  • 和胡卜素被确定为分别对抗氧化能力和颜色的主要贡献者.
  • 通过随机森林建模,确定了15个歧视性生物标志物.

结论:

  • 基因型依赖的代谢物变异是果品质多样性的主要驱动因素.
  • 鉴定到的生物标志物为品种选择提供了基础.
  • 这些发现支持通过有针对性的育种和选择开发高价值的果产品.