• Login
    View Item 
    •   Athenaeum Home
    • University of Georgia Theses and Dissertations
    • University of Georgia Theses and Dissertations
    • View Item
    •   Athenaeum Home
    • University of Georgia Theses and Dissertations
    • University of Georgia Theses and Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Enzymatic synthesis of structured lipids containing DHA, ARA, capric, and palmitic acids suitable for use as fat blend in infant formula

    Thumbnail
    Date
    2015-08
    Author
    Alvarez, Carlos Andres
    Metadata
    Show full item record
    Abstract
    A structured lipid (SL) with substantial amount of palmitic acid at the sn-2 position and enriched with capric acid (C), was produced in two enzymatic interesterification stages by using immobilized lipase, Lipozyme® TL IM (Novozymes North America Inc., Franklinton, NC). The substrates for the reactions were high melting point palm stearin (HMPS), high oleic sunflower oil (HOSO) and tricaprin (TC). The SL was characterized for total and positional fatty acid (FA) profiles, triacylglycerol (TAG) molecular species, free fatty acid content, melting and crystallization profiles. The final SL contained 20.13 mol% of total palmitic acid from which nearly 40% was located at the sn-2 position. The total capric acid content was 21.22 mol%, mostly at the sn-1 and sn-3 positions. The predominant TAGs in the SL were OPO, POP and CLC. The melting completion and crystallization onset temperatures of the SL were 27.7°C and 6.1°C, respectively. The yield for the overall reaction was 90 wt%. This SL might be totally or partially used in commercial fat blends for infant formula.
    URI
    http://purl.galileo.usg.edu/uga_etd/alvarez_carlos_a_201508_ms
    http://hdl.handle.net/10724/33965
    Collections
    • University of Georgia Theses and Dissertations

    About Athenaeum | Contact Us | Send Feedback
     

     

    Browse

    All of AthenaeumCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    About Athenaeum | Contact Us | Send Feedback