Process for Manufacturing a Feed Composition

Patent metadata

Field	Value
Publication number	US-2016150808-A1
Application number	US-201414900765-A
Country	US
Kind code	A1
Filing date	Jun 24, 2014
Priority date	Jun 26, 2013
Publication date	Jun 2, 2016
Grant date	—

Abstract

In the steam pelleting of feed components which include starch, the addition of an alpha-amylase to the raw material meal can reduce energy consumption (energy input) in the feed press, and increase the throughput (capacity per hour), and it may be possible to reduce the temperature in the pellet press.

First claim

1 . A process for manufacturing a pelleted feed composition comprising the steps of:
a) mixing feed components comprising starch with an alpha-amylase, b) steam treating the mixture (a) to a water content below 20% by weight, and c) pressing the steam treated mixture (b) to form pellets, at conditions so as to reduce energy consumption in step (c) compared to a process without the alpha-amylase.

2 . The process of claim 1 , wherein the alpha-amylase is included in the mixture (a) in liquid or powder form.

3 . The process of claim 1 , wherein the alpha-amylase is derived from bacteria, particularly from Bacillus.

4 . The process of claim 1 , wherein the alpha-amylase has a melting point above 75° C.

5 . The process of claim 1 , wherein the alpha-amylase is included in the mixture (a) in an amount of at least 2 g enzyme protein per ton of feed component.

6 . The process of claim 1 , wherein the temperature after pelleting of the steam treated mixture is above 75° C.

7 . The process of claim 1 , wherein the temperature of the feed mixture remains below 105° C.

8 . The process of claim 1 , wherein the mixture before step (b) has a water content of 8-16% w/w.

9 . The process of claim 1 , wherein the mixture after step (b) has a water content below 19%.

10 . The process of claim 1 , wherein the total residence time in steps b) and c) is below 15 seconds.

11 . The process of claim 1 , wherein the mixture (a) further includes a second enzyme, particularly in the form of granules.

12 . The process of claim 1 , wherein the granules have a coating comprising a salt.

13 . The process of claim 12 , wherein the coating comprises at least 60% w/w of the salt.

14 . The process of claim 12 , wherein the salt in the coating is selected from the group consisting of NaCl, Na 2 CO 3 , NaNO 3 , Na 2 HPO 4 , Na 3 PO 4 , NH 4 Cl, (NH 4 ) 2 HPO 4 , NH 4 H 2 PO 4 , (NH 4 ) 2 SO 4 , KCl, K 2 HPO 4 , KH 2 PO 4 , KNO 3 , Na 2 SO 4 , K 2 SO 4 , KHSO 4 , MgSO 4 , ZnSO 4 , CuSO 4 and sodium citrate.

15 . The process of claim 11 , wherein the second enzyme has amylase, protease, phytase, xylanase, beta-glucanase, pectinase, cellulase and/or lipase activity.

Assignees

• Novozymes As
• Novozymes As
• Dsm Ip Assets Bv

Inventors

• Joergensen Christel Thea
• Viksoe-Nielsen Anders
• Pettersson Dan

Classifications

• A23K20/163 Primary

  Sugars; Polysaccharides · CPC title

• A23K10/14 Primary

  Pretreatment of feeding-stuffs with enzymes · CPC title

• A23K20/189

  Enzymes · CPC title

• A23K40/20

  by moulding, e.g. making cakes or briquettes · CPC title

• A23K40/25

  by extrusion · CPC title