Method for producing a granular biomass which contains an oxidation-sensitive valuable substance

Patent metadata

Field	Value
Publication number	US-2017298318-A1
Application number	US-201515516038-A
Country	US
Kind code	A1
Filing date	Sep 22, 2015
Priority date	Oct 2, 2014
Publication date	Oct 19, 2017
Grant date	—

Abstract

According to the invention, it has been found that a particulate biomass containing an oxidation-sensitive material of value can be converted into a particularly easy-to-handle product in a gentle manner if it is subjected to a granulation with the addition of an agglomeration auxiliary.

First claim

1 - 17 . (canceled)

18 . A method for producing a particulate biomass having an oxidation-sensitive material of value, said method comprising granulating a particulate starting biomass in the presence of an agglomeration auxiliary.

19 . The method of claim 18 , wherein carbohydrates, or modified carbohydrates, are used as the agglomeration auxiliary.

20 . The method of claim 18 , wherein polysaccharides, or modified polysaccharides, are used as the agglomeration auxiliary.

21 . The method of claim 18 , wherein the agglomeration auxiliary is selected from the group consisting of: guaran; gum Arabic; guar gum; locust bean gum; xanthan gum; agar; carrageenan; a maltodextrin; starch; cellulose or its derivatives; hemicellulose or its derivatives; alginic acid; maltodextrin; and mixtures thereof.

22 . The method of claim 21 , wherein said agglomeration auxiliary is selected from the group consisting of: modified cellulose; maltodextrin; and mixtures thereof.

23 . The method of claim 18 , wherein proteins are used as the agglomeration auxiliary.

24 . The method of claim 18 , wherein organic polymers are used as the agglomeration auxiliary.

25 . The method of claim 18 , wherein inorganic substances are used as the agglomeration auxiliary.

26 . The method of claim 18 , wherein the starting biomass is obtained by spray drying a fermentation broth containing the biomass.

27 . The method of claim 18 , wherein the biomass comprises cells from the taxon Labyrinthulomycetes.

28 . The method of claim 18 , wherein the oxidation-sensitive material of value is a PUFA.

29 . The method of claim 18 , wherein:
a) the agglomeration auxiliary is selected from the group consisting of: guaran; gum Arabic; guar gum; locust bean gum; xanthan gum; agar; carrageenan; a maltodextrin; cornstarch; tapioca starch; potato starch,; cellulose or its derivatives; hemicellulose or its derivatives; alginic acid; maltodextrin; casein, gelatine, collagen; wheat gluten; lignosulphonate; polymethylolcarbamides; polyacrylic acids; polyvinyl alcohols; bentonites; hexametaphosphate and mixtures thereof; b) the particulate starting biomass has been obtained by spray drying a fermentation broth containing the biomass; c) the biomass comprises cells from family Thraustochytriaceae; d) the oxidation-sensitive material of value is an omega-3-fatty acid.

30 . A particulate biomass having an oxidation-sensitive material of value, comprising an agglomeration auxiliary in an amount of from 0.05 to 6% by weight.

31 . The particulate biomass of claim 30 , wherein the agglomeration auxiliary is a carbohydrate or a modified carbohydrate.

32 . The particulate biomass of claim 30 , wherein said biomass comprises a hydrophilic or hydrophobic silicate in an amount of from 0.05 to 6% by weight.

33 . The particulate biomass of claim 30 , wherein at least 80% by weight of the particles have a particle diameter (grain size) of from 100 to 2000 μm.

34 . The particulate biomass claim 30 , wherein said biomass comprises cells from the taxon Labyrinthulomycetes.

35 . The particulate biomass of claim 30 , wherein the oxidation-sensitive material of value is a PUFA.

36 . The particulate biomass of claim 30 , comprising an agglomeration auxiliary in an amount of from 0.4 to 4% by weight, wherein:
a) the agglomeration auxiliary is selected from the group consisting of: carboxymethylcellulose; hydroxypropylmethylcellulose, maltodextrin; and a hydrophilic or hydrophobic silicate in an amount of from 0.1 to 5% by weight; b) at least 90% by weight of the particles have a particle diameter (grain size) of from 100 to 1000 μm; c) the biomass comprises cells selected from one or more genera selected from the group consisting of: Thraustochytrium; Schizochytrium; Aurantiochytrium; Oblongichytrium; and Ulkenia; and d) the oxidation-sensitive material of value is an omega-3-fatty acid.

37 . A feedstuff or foodstuff comprising the particulate biomass of claim 30 .

Assignees

• Evonik Degussa Gmbh

Inventors

• Rabe Christian
• Dernedde Mathias
• Schrickel Alexander
• Priefert Horst
• Eils Stefan
• Diehl Michael

Classifications

• A23L5/00

  Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor · CPC title

• A23K20/00

  Accessory food factors for animal feeding-stuffs · CPC title

• A23K10/16

  Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions (A23K10/12 takes precedence) · CPC title

• A61K8/37

  Esters of carboxylic acids · CPC title

• A23L31/00

  Edible extracts or preparations of fungi; Preparation or treatment thereof · CPC title