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相关概念视频

Factors Influencing Bioavailability: First-Pass Elimination01:23

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When a drug is taken orally, it undergoes a journey starting from the gastrointestinal (GI) tract, passing through the portal vein, reaching the liver, and finally entering the systemic circulation. This process involves the absorption of the drug across the GI tract. The liver is the primary site for metabolizing the drug, with some metabolism also occurring in the gut wall. This journey significantly reduces the quantity of the drug that reaches the systemic circulation, a phenomenon known as...
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Lipids are large molecules that are generally not water-soluble. Since most of the digestive enzymes in the human body are water-based, there are specific steps the body must take to break down lipids and make them available for use.
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The selection of a drug's delivery route depends upon its physicochemical properties, including lipid or water solubility and ionization, as well as the therapeutic requirement, such as immediate or sustained effect. These routes can be divided into three primary categories: enteral, parenteral, and topical.
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相关实验视频

Updated: Sep 12, 2025

Preparation and Characterization of Nanoliposomes for the Entrapment of Bioactive Hydrophilic Globular Proteins
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食品系统中的脂质体封装:对配方,加工和应用的审查.

Muhammad Abdul Rahim1, Hamdy A Zahran2, Hafiza Madiha Jaffar3

  • 1Department of Food Science & Nutrition, Faculty of Medicine and Allied Health Sciences Times University Multan Pakistan.

Food science & nutrition
|August 6, 2025
PubMed
概括

脂质体封装保护食品生物活性,热力学因素和化学成分影响稳定性和输送. 了解这些特性是功能性食品开发和保存的关键.

关键词:
食品申请 食品申请冷干燥 - 干燥的方法脂质体封装的封装方法具有风湿学性质的物质.用喷雾干燥的方式干燥.

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科学领域:

  • 食品科学与技术 食品科学与技术
  • 材料科学 材料科学 材料科学
  • 生物化学 生物化学

背景情况:

  • 脂质体封装对于保护和提供食品中的生物活性化合物至关重要.
  • 热力学因素显著影响脂质体的结构和功能.

研究的目的:

  • 审查热力学因素和化学成分对食品应用中的脂质体的影响.
  • 探索脂质体属性如何影响封装效率,稳定性和功能.

主要方法:

  • 对脂质体双层 (大型单和多囊泡) 的分析.
  • 专注于化学成分 (疏水尾巴,固醇) 和相变.
  • 评估质特性和稳定技术,如喷雾干燥和冷干燥.

主要成果:

  • 脂质体的化学成分,包括脂和稳定剂,决定了机械和质性质.
  • 膜刚性 (来自和脂质或胆固醇) 影响结构完整性.
  • 灵活的膜增强了大型或脆弱的生物活性物质的封装.

结论:

  • 脂肪体封装在食品工业中越来越多地被要求用于保存和提供功能成分.
  • 讨论了脂质体食品技术的关键挑战和未来研究方向.