Patent No. EP2781161 (titled "Oil Or Fat Composition, Chocolate And Combined Confectionery") was filed by Fuji OIL on Oct 31, 2012. The application was issued on Jan 16, 2019.
An oil-and-fat composition for chocolate that prevents oil-and-fat migration and bloom in composite confectionery. The composition comprises 40-90 wt% of an oil-and-fat (A) with 50 wt% or more of stearoylstearoylstearate (StOSt) and 10-60 wt% of an oil-and-fat (B) with a StLSt/StOSt ratio of 0.08 or less and a StStO/StOSt ratio of 0.03 or less. The composition is used in a chocolate that exhibits excellent resistance to low-temperature bloom and softening, as well as good meltability in the mouth.

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