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.
Claims20
A meal fraction produced from Brassica carinata oilseed,
- wherein said Brassica carinata oilseed comprises between about 60 and about 100 μmol total glucosinolates per gram of oilseed,
- and wherein sinigrin constitutes more than 90% of the total glucosinolate content of the Brassica carinata oilseed,
- and wherein said meal fraction comprises less than 20 μmol sinigrin per gram of meal.
A meal fraction produced from Brassica carinata oilseed, said meal fraction comprising
- total glucosinolates in an amount of less than 20 μmol per gram of meal,
- sinigrin in an amount of less than 15 μmol per gram of meal,
- a moisture content of less than 20%,
- wherein said Brassica carinata oilseed comprises between about 60 and about 100 μmol total glucosinolates per gram of oilseed,
- and wherein sinigrin constitutes more than 90% of the total glucosinolate content of the Brassica carinata oilseed.
A meal fraction produced from Brassica carinata oilseed, wherein said meal fraction comprises less than 20 μmol sinigrin per gram of meal, produced by a process comprising:
- obtaining Brassica carinata oilseed comprising between about 60 and about 100 μmol total glucosinolates per gram of oilseed in which sinigrin constitutes more than 90% of the total glucosinolate content of the Brassica carinata oilseed;
- pressing seeds of Brassica carinata oilseed to produce oilseed flakes;
- cooking the oilseed flakes;
- pressing the cooked oilseed flakes to remove oil from the oilseed flakes, thereby producing an oil fraction and a meal fraction;
- treating the meal fraction with hexane to extract residual oil;
- desolventizing-toasting the hexane-extracted meal fraction to remove residual hexane;
- drying the meal fraction to a moisture content of 12% or less, and
- recovering a meal fraction of Brassica carinata having a sinigrin content of less than 20 μmol per gram of meal.
Dependencies are inferred from the claim text.