US 9,232,812 B2Granted

Apparatus and method for hydrolysis of a protein containing raw material and application of the resulting hydrolysis products

AssigneeMarine Bioproducts A.S.

InventorsStig Soerensen, Kjartan Sandnes, Harald Hagen, Karstein Pedersen

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Abstract

Apparatus and methods for hydrolyzing protein-containing raw material into water soluble protein and other products. The apparatuses and methods comprise an optional collection or processing stage in which protein-containing raw material, such as fish or animal carcasses from food production plants, are collected and optionally processed. The raw material is then reacted with one or more enzymes to hydrolyze the protein present, after which the one or more enzymes are inactivated and the components separated. The processes and apparatuses, which can be run as a batch processes or, advantageously as a continuous processes, can yield water soluble protein, oils, bone meal and other products that have utility as food or food additives.

Claims36

Dependent claims

A method for continuous, low emulsion hydrolysis of protein-containing raw material derived from the group consisting of fish, animal, and plant material comprising the steps of:

a) providing an apparatus comprising a hydrolysis area, an inactivation area, and a separation area;
b) hydrolyzing said raw material in the hydrolysis area by reacting a reaction mixture comprising said raw material and at least one enzyme present in said hydrolysis area, wherein the reaction mixture contains both solids and liquid, and wherein upon hydrolysis, said reaction mixture further comprises hydrolysis product;
c) inactivating said reaction mixture from the hydrolysis area in the inactivation area to substantially inactivate the enzyme present in the reaction mixture;
and
d) separating the reaction mixture in the separation area that receives at least a portion of the reaction mixture from the inactivation area and is capable of separating it into two or more components, including at least one substantially liquid component which comprises water-soluble protein;
and including at least one substantially solid containing component;
wherein the hydrolysis area, inactivation area, and separation area operate in a continuous mode and maintain an even and continuous flow mode of said reaction mixture;
and operated such that any emulsion present in said liquid component is present in an amount is maintained below 10% of the reaction mixture.

5 more elements

A method for continuously hydrolyzing a reaction mixture of a protein containing fish, animal or vegetable raw material into a liquid phase (13) and a solid phase (12), comprising the steps of:

a) providing a plant for the continuous hydrolysis of a reaction mixture of the protein containing animal or vegetable raw material, into at least a liquid phase
(13) and at least a solid phase (12) said plant comprising a preparation section (1) a hydrolysis section (4) connected thereto, an inactivation section (7) connected to the hydrolysis section (4) and a final processing section (17) connected to the inactivation section, said hydrolysis section (4) comprising at least one substantially tube-shaped hydrolysis reactor (6) having a first feeder screw (20) for conveying a reaction mixture of enzyme and raw material through the at least one tube-shaped hydrolysis reactor (6) and onward into the inactivation section (7) having at least one inactivation reactor (8) connected to the hydrolysis section (4) with an inlet end (9) and an exit end (10) positioned opposite to it, characterized by the exit end (10) of the at least one inactivation reactor (8) having at last one outlet (14) for the solid phase (12) and at least one outlet (16) for the liquid phase (13) positioned at a distance from the outlet (14) for the solid phase (12) dividing up the raw material;
mixing the raw material with the enzyme;
b) hydrolyzing the raw material enzymatically for a determined period of time in the hydrolysis section;
c) inactivating the enzymes which are present in the reaction mixture, in the inactivation reactor (8),
d) letting out continuously the solid phase (12) and the liquid phase (14) from the reaction mixture in the inactivation reactor (8), characterized by the liquid phase (13) comprising a fatty fraction and an aqueous fraction with a content of dissolved and non-dissolved ingredients of protein origin, the fatty fraction and the aqueous fraction being let out from the inactivation reactor (8) continuously either separately at identical or different rates or as a collective homogenized suspension and wherein the hydrolysis section, inactivation section, and separation section operate in a continuous mode and maintain an even and continuous flow mode of said reaction mixture;
and
wherein any emulsion present in said liquid component is maintained below 10% of the reaction mixture.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/909,587Filed 21 Oct 2010 · division
Priority: DK 2002 018592 Dec 2002
Published: US 2011/0033889 A110 Feb 2011
Granted: 12 Jan 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

A23J 1/10
Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites: from hair, feathers, horn, skins,…
A23J 1/002
From waste materials, e.g. kitchen waste: from animal waste materials
A23J 1/04
Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites: from fish or other sea animals
A23J 3/341
Using enzymes: of animal proteins

Family

Application10/725,039Parent of this division · filed 2 Dec 2003
US 2011/0033889 A1Pre-grant publication · published 10 Feb 2011
US 8,173,014 B2Parent of this division
US 2005/0037109 A1Published application
US 9,232,812 B2This patent

From the US filing history. Foreign family members aren’t listed.