Rapeseed oil is the mostly used edible vegetable oil in Germany since many years. Unfortunately, considerable amounts of rapeseed oils evoke various off-flavors. Therefore, the aim was to elucidate the fusty/musty off-flavor in a native cold-pressed rapeseed oil and the fishy off-flavor in a steam-treated rapeseed oil using the molecular sensory science concept. In the present study, the key aroma compounds evoking the distinct off-flavors were successfully decoded by comparison with rapeseed oils eliciting the desired sensory attributes. Additionally, marker compounds for the fusty/musty off-flavor were established both in the oil and the seed, which are the basis for an instrumental-analytical method for quality control of the raw material.
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Rapeseed oil is the mostly used edible vegetable oil in Germany since many years. Unfortunately, considerable amounts of rapeseed oils evoke various off-flavors. Therefore, the aim was to elucidate the fusty/musty off-flavor in a native cold-pressed rapeseed oil and the fishy off-flavor in a steam-treated rapeseed oil using the molecular sensory science concept. In the present study, the key aroma compounds evoking the distinct off-flavors were successfully decoded by comparison with rapeseed oi...
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