Potential of a Soft Spreadable Margarine Produced from Waste Chicken Fat and Corn Oil Catalyzed by the Thermomyces lanuginosus (Tl Im) Lipozyme

Low-fat bread spreads have become very popular since conventional spreads have been shown to be unhealthy due to high amounts of saturated fat and trans fatty acids. Two interesterified products, sample 16 (4% Thermomyces lanuginosus lipozyme, 4:1 molar ratio of chicken fat to corn oil and 42 h of i...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Pakistan journal of nutrition : PJN 2012, Vol.11 (4), p.360-366
Hauptverfasser: Tasirin, Afida, Said, Mamot
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Low-fat bread spreads have become very popular since conventional spreads have been shown to be unhealthy due to high amounts of saturated fat and trans fatty acids. Two interesterified products, sample 16 (4% Thermomyces lanuginosus lipozyme, 4:1 molar ratio of chicken fat to corn oil and 42 h of interesterification at 50 degree C) and sample 17 (4% lipozyme, 2:1 molar ratio of chicken fat to corn oil and 42 h of interesterification at 30 degree C), were selected that had the highest Solid Fat Content (SFC) at 30 degree C. Both the samples contained high proportions of low melting triglycerides, which explains the lower melting temperatures (sample 16, -37.45 degree C to 31.40 degree C; sample 17, -39.78 degree C to 35.4 degree C) and crystallization temperatures (sample 16, 0.58*C to -38.90 degree C; sample 17, -2.45 degree C to -34.27 degree C for sample 17) and solid fat content (sample 16, 3.2% at 20 degree C; sample 17, 3.5% at 20 degree C). The enzymatic process caused the Free Fatty Acid (FFA) values to increase from 0.13-0.48% (sample 16) and 0.16-0.66% (sample 17). The final product (sample 16) had a smaller and less dense fat particle and is a low-cost alternative for soft spreads. The crystallization and melting properties of blends of chicken fat and corn oil result in a product that has a wide plastic range but still contains an unsaturated fatty acid content nearly equal to those based on plant sources.
ISSN:1680-5194
1994-7984
DOI:10.3923/pjn.2012.360.366