title: Encapsulation of vitamin A.
abstract: Vitamin A was protected from degradation in the first compartment of the ruminant stomach by encapsulation by a phase-separation technique. The matrix components consisted of substituted cellulosic materials, fatty acids or a variety of proteins. Antioxidants such as butylated hydroxytoluene and ethoxyquin were incorporated in the formulations. The protective efficiency of the formulations as estimated by exposing the encapsulated vitamin A to gastric juice (microbial degradation) and to a pepsin solution (enzymatic degradation). The capsules prepared with substituted cellulosic materials gave the best protection to vitamin A from degradation.
authors.affiliation: Institute for Applied Research, Ben-Gurion University, Negev, Beer-Sheva, Israel.
authors.forename: A
authors.initials: A
authors.lastname: Markus
authors.forename: Z
authors.initials: Z
authors.lastname: Pelah
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004339:Drug Compounding / Q000379:methods; D005750:Gastric Juice / Q000378:metabolism*; D010434:Pepsin A; D014801:Vitamin A / Q000378:metabolism*
chemical_list: D014801:Vitamin A; D010434:Pepsin A