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High Erucic Acid Rapeseed

General

High Erucic Acid Rapeseed (HEAR) has been grown commercially for many years and contracts are available throughout the UK.

HEAR is the same plant species (Brassica napus) as conventional double low oilseed rape, but the oil profile of the seed is different.  The early varieties of oilseed rape contained high levels of erucic acid but this was considered to have deleterious effects on human health.  Breeding programmes produced varieties with low levels of erucic acid in rapeseed oil and glucosinolates in rapeseed meal, the so-called "double low" types which typically contain less than 2% erucic acid.  In contrast, HEAR varieties contain up to 50 - 55% erucic acid in the oil.

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