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Encapsulation of vitamin A.

A Markus1, Z Pelah

  • 1Institute for Applied Research, Ben-Gurion University, Negev, Beer-Sheva, Israel.

Journal of Microencapsulation
|July 1, 1989
PubMed
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Encapsulation protects Vitamin A from degradation in ruminant stomachs using phase-separation techniques. Substituted cellulosic materials provided the best protection against microbial and enzymatic breakdown.

Area of Science:

  • Ruminant nutrition
  • Nutrient protection technologies
  • Food chemistry

Background:

  • Vitamin A is essential but susceptible to degradation in the ruminant stomach.
  • Protecting nutrients is crucial for animal health and productivity.
  • Phase-separation encapsulation offers a potential solution for nutrient protection.

Purpose of the Study:

  • To develop and evaluate encapsulation methods for protecting Vitamin A in the ruminant stomach.
  • To assess the efficacy of different matrix materials and antioxidants against degradation.
  • To identify the most effective formulation for preserving Vitamin A.

Main Methods:

  • Vitamin A was encapsulated using a phase-separation technique with various matrix components (cellulosic materials, fatty acids, proteins).

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  • Antioxidants like butylated hydroxytoluene and ethoxyquin were incorporated.
  • Encapsulated Vitamin A was exposed to gastric juice (microbial degradation) and pepsin solution (enzymatic degradation) to test protective efficiency.

    • Main Results:

    • Encapsulation effectively protected Vitamin A from both microbial and enzymatic degradation.
    • Formulations using substituted cellulosic materials demonstrated superior protective capabilities.
    • Fatty acids and protein-based matrices offered less protection compared to cellulosic materials.

    Conclusions:

    • Phase-separation encapsulation is a viable strategy for protecting Vitamin A in ruminant digestion.
    • Substituted cellulosic materials are highly effective matrices for enhancing Vitamin A stability.
    • This technology can improve Vitamin A bioavailability and efficacy in ruminant diets.