Method for removing glucosinolates from oilseed meals
AssigneeNuseed Global Innovation Ltd.
InventorsMark Hetherington, Travis Hoffman, Michael Lindenbaum
Life of this patent
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Abstract
A process to remove the glucosinolates of oilseed meals, such as Brassica carinata oilseed meals, is provided. In one embodiment, exogenous myrosinase is used to convert the glucosinolates to volatile isothiocyanate compounds, which can then be removed under conditions of mild heat and negative pressure. In another embodiment, heat and pressure are used to remove glucosinolates from Brassica carinata oilseed. The processed meals may contain less than 80% of their starting levels of glucosinolates and may be suitable for use in various applications, including as animal feeds.
Claims17
A process for producing a meal fraction of Brassica carinata oilseed having reduced sinigrin content, the process comprising:
- heating and applying pressure to the oilseed before, during or after the extraction of oil wherein the heating and applying pressure to the oilseed before, during or after the extraction of oil comprises:
- a. pressing seeds of Brassica carinata oilseed to produce oilseed flakes;
- b. cooking the oilseed flakes;
- c. pressing the cooked oilseed flakes to remove oil from the oilseed flakes, thereby producing an oil fraction and a meal fraction;
- d. treating the meal fraction with solvent to extract residual oil;
- e. desolventizing-toasting the treated meal fraction;
- and
- f. drying the meal fraction, and
- recovering a meal fraction of Brassica carinata having a sinigrin content that is reduced by greater than 50%, 55%, 60%, 65%, 70%, or 75% compared to the Brassica carinata oilseed prior to processing,
- wherein the sinigrin content of the recovered meal fraction of Brassica carinata oilseed is less than 20 μmol per g of meal, optionally less than 15 μmol per g of meal.
The process according to 1, wherein the meal fraction is cooled prior to the step of treating the meal fraction to extract residual oil.
The process according to 1, wherein the heating and applying pressure to the oilseed before, during or after the extraction of oil further comprises a step of pre-treating the seeds of Brassica carinata oilseed prior to the step of pressing the seeds.
Dependencies are inferred from the claim text.