Effect of maltodextrin dextrose equivalent and ultrasonic emulsification on encapsulation performance of tocochromanol from rice bran oil deodorizer distillate.

Tocopherol (Toc) and tocotrienol (T3) are two types of tocochromanol. T3 is attracting more attention to health research and is considered more beneficial than Toc. In this study, rice bran oil deodorizer distillate (RBODD) was utilized as a source of vitamin E extraction due to its high concentration of T3. Since vitamin E is water-insoluble and susceptible to oxidation, encapsulation was conducted in this investigation. The purpose of the research was to examine the effect of various dextrose equivalents (DE) of maltodextrin and ultrasonic emulsification time (UT) on tocochromanol contents and profiles in encapsulated powder. The study used tapioca starch and maltodextrin (DE-7, DE-10, and DE-16) as wall materials. Different durations of UT at 0, 30, and 60 min were investigated. The results showed that DE-10 and 0 min of UT were suitable conditions for producing the encapsulated vitamin E. The yield of encapsulation was over 90%. Moreover, encapsulation efficiency and entrapment efficiency were 89% and 44%, respectively. The obtained encapsulated vitamin E contained high tocochromanol (284 mg/g) and T3 (238 mg/g) with low moisture content (2 g/100 g) and surface oil (27 g/100 g). The encapsulated vitamin E which was extracted from RBODD exhibits bioavailability and nutritional potentials beneficial for various industries including food and pharmacy. [ABSTRACT FROM AUTHOR]