At 50 C, the auto-oxidation of quercetin occurs, so that the content decreases, whereas at 95 C, quercetin aglycone content increased,due to a deglycosylation reaction of the monoglycosides. The
decreasing content, compared to the initial concentration for the quercetin derivatives, is in descending order quercetin-3-Ogalactoside quercetin-3-O-glucoside > quercetin-3-Orhamnoside> quercetin-3-O-xyloside > quercetin-3-O-arabinoside.The order is similar to stability results in apple juice