Oat Fiber As a Carrier for Curcuminoids
Sara Sayanjali, Luz Sanguansri, Roman Buckow, Sally Gras, Mary Ann Augustin
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | AMER CHEMICAL SOC | Published : 2014
The curcuminoid-carrying potential of oat fiber was examined as a potential route to overcome the low aqueous solubility of curcuminoids. Aqueous dispersions of oat fiber were mixed with curcuminoids solubilized in ethanol to obtain curcuminoids-oat fiber (1% w/w) dispersions in aqueous ethanol (2% v/v). Centrifugation of the curcuminoids-oat fiber dispersions resulted in a supernatant (95.3% w/w: 0.11% w/w protein, 0.17% w/w β-glucan) and precipitate (4.74% w/w: 0.18% w/w protein, 0.11% w/w β-glucan) with the curcuminoids being almost equally partitioned into both fractions. Curcuminoids solubility in the supernatant was markedly greater than that in aqueous ethanol and water. The curcumino..View full abstract
S.S. has an International Postgraduate Research Scholarship and an Australian postgraduate award from the Australian federal government. S.G. is supported by the ARC Dairy Innovation Hub and the Particulate Fluids Processing Centre at The University of Melbourne.