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相关概念视频

One-Compartment Open Model for IV Bolus Administration: General Considerations01:19

One-Compartment Open Model for IV Bolus Administration: General Considerations

The one-compartment model is a pharmacokinetic tool that models the body as a single, uniform compartment, facilitating the understanding of drug distribution and elimination. This model is particularly beneficial for intravenous (IV) bolus administration, where the drug rapidly circulates throughout the body.
The drug's presence in the body is defined by an equation representing the difference between the rates of drug entry and exit. Key parameters—elimination rate constant, half-life,...
One-Compartment Open Model for IV Bolus Administration: Estimation of Elimination Rate Constant, Half-Life and Volume of Distribution01:09

One-Compartment Open Model for IV Bolus Administration: Estimation of Elimination Rate Constant, Half-Life and Volume of Distribution

The one-compartment open model is a simplified approach used in pharmacokinetics to understand the distribution and elimination of a drug administered through an intravenous bolus. This model assumes rapid drug dispersal throughout the body and elimination using a first-order process. Key pharmacokinetic parameters, such as the elimination rate constant (k), half-life (t1/2), and the apparent volume of distribution (Vd), can be estimated from this model. The elimination rate is calculated from...
One-Compartment Open Model for IV Bolus Administration: Estimation of Clearance00:56

One-Compartment Open Model for IV Bolus Administration: Estimation of Clearance

Clearance is a key pharmacokinetic parameter that quantifies the volume of body fluid from which a drug is entirely removed within a specific time frame. It is crucial in assessing how a drug is eliminated from the body and has critical clinical applications.
In the one-compartment open model for intravenous (IV) bolus administration, clearance is estimated by dividing the elimination rate by the plasma drug concentration. This equation leverages the elimination rate constant and the apparent...
Two-Compartment Open Model: IV Bolus Administration01:18

Two-Compartment Open Model: IV Bolus Administration

The two-compartment model for intravenous (IV) bolus administration illustrates drug distribution in the body, subdividing it into central and peripheral compartments. This model operates on the concept of two-compartment kinetics. The drug's plasma concentration shows a bi-exponential decline following IV bolus administration, signaling the presence of two disposition processes: distribution and elimination.
The disparity between drug input and the sum of drug transfer rates between...
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
Drug Product Stability01:16

Drug Product Stability

The long-term stability of drug products is critical to ensuring their quality, safety, and effectiveness over time. Stability directly influences a product's ability to maintain its intended characteristics, ensuring it performs as expected during its intended shelf life. Key attributes such as drug potency, impurities, dissolution, and other physicochemical measures of performance are tested to assess stability. These parameters indicate how well the product retains its quality over time and...

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Updated: Jul 19, 2026

Semi-Targeted Ultra-High-Performance Chromatography Coupled to Mass Spectrometry Analysis of Phenolic Metabolites in Plasma of Elderly Adults
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使用多醇微囊增加豆奶的稳定性

Mariana Larrauri1,2, Claudia M Asensio1,2, María P Martín2

  • 1Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET), Av. Velez Sarsfield 1611, 5016 Córdoba, Argentina.

Journal of food science and technology
|February 27, 2024
PubMed
概括

添加自由或微封装的花生皮聚醇,可以增强大豆奶的化学,微生物和感官稳定性. 微封装保护这些抗氧化剂,改善饮料的功能性质.

关键词:
抗氧化剂是一种抗氧化剂.微囊 微囊是一种微囊.这是一个花生花生,花生花生.烯酸 (Phenol) 是一种豆乳kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk 在这里可以看到更多的图片

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科学领域:

  • 食品科学 食品科学 食品科学
  • 食品化学 食品化学
  • 食品微生物学 食品微生物学

背景情况:

  • 功能性饮料正在引起行业的兴趣.
  • 添加抗氧化剂到食品中,带来了生物活性保护的挑战.
  • 豆奶的健康益处可以通过添加花生皮多来增强.

研究的目的:

  • 为了评估储存期间添加花生皮聚醇的豆奶中的化学,抗氧化,微生物和感官变化.
  • 为了比较自由花生皮提取物 (BEA) 与大豆奶中的微封装聚醇 (MCBEA) 的作用.
  • 评估微封装作为一种在食品矩阵中保护多的方法.

主要方法:

  • 准备了豆奶样本:对照 (C),花生皮提取物 (BEA) 和微封装聚醇 (MCBEA).
  • 样品在4°C下保存30天.
  • 进行了化学 (氧化物,六),抗氧化剂 (DPPH抑制,含量),微生物 (细菌生长) 和感官分析.

主要成果:

  • 与对照组相比,添加多 (BEA和MCBEA) 改善了大豆奶的化学,微生物和感官稳定性.
  • BEA和MCBEA样本显示了较低的氧化物,六次性,细菌生长,氧化风味和甜味.
  • 免费花生皮提取物 (BEA) 的总含量和抗氧化活性高于微封装多 (MCBEA).

结论:

  • 添加多醇可以提高大豆奶的稳定性和质量属性.
  • 聚醇的微封装保护这些化合物,并允许在豆乳基质内控制释放.
  • 聚烯微封装是一种可行的策略,可以改善饮料的功能性质.