Food or edible material: processes – compositions – and products – Products per se – or processes of preparing or treating... – Protein – amino acid – or yeast containing
Reexamination Certificate
2000-05-30
2001-05-29
Sayala, Chhaya D. (Department: 1761)
Food or edible material: processes, compositions, and products
Products per se, or processes of preparing or treating...
Protein, amino acid, or yeast containing
C426S635000, C426S807000
Reexamination Certificate
active
06238728
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an amino acid-enriched feed, industrially produced mixed feed or premix thereof which comprises using an amino acid fermentation broth or its treated solution (amino acid containing solution or suspension originating in an amino acid fermentation broth).
2. Description of the Background
Industrially produced mixed feed for various agriculturally useful animals or livestock (such as pig and poultry) is composed of various individual feeding materials (e.g. cereals, brans, vegetable oil meals, animal feeds, corn gluten meal (hereinafter, referred to as “CGM”), corn gluten feed (hereinafter, referred to as “CGF”), cane sugar molasses, starch cake, feed additives and the like). The composition of amino acids present in the feed causes great influence on the growth of animals. Usually L-lysine, L-threonine and L-tryptophane become limiting amino acids although they are dependent on the compounding ratio of individual components in the mixed feed. So industrially produced crystalline amino acids have been used as additives to the feed.
Amino acids such as L-lysine hydrochloride, L-threonine, L-tryptophane, etc. which are currently used as feed additive are prepared by fermentation thereby crude broth containing amino acid, inorganic salts, microorganism, saccharides, etc. is obtained, and the desired amino acid is separated from the broth, for example, by an ion-exchange resin treatment and crystallization processes. According to such processes the desired amino acid may be obtained in high purity. However, the processes have the disadvantage that installation investment is big and expensive sub-raw materials need to be used.
Amino acids for use as feed additive are not always required to have high purity as stated above. So, many attempts have also been made to utilize as feed additive a granular composition obtained directly from an amino acid fermentation broth or its treated solution by concentration, drying and granulation. As disclosed in e.g. French Patent Application Publication No. 2,217,347, Japanese Patent Laid-Open Nos. Sho 56-35962 (35962/1981) and Hei 5-192089 (192089/1993), dry composition containing amino acid for use as feed additive may be easily and cheaply obtained.
Although the above two processes are intended to prepare amino acid feed additive as solid material, they have a common problem as stated below. That is, although the compounding ratio of the amino acid feed additive to the mixing feed components must be set so as to become the amino acid content required depending on the age of animal to be fed, as a rule it is as very low as about 0.1 to 0.3% by weight. In addition, because the grain size distribution varies it is difficult to obtain a mixed feed having homogeneous quality by mechanical mixing procedure.
Also, for the feed industry handling an enormous amount of powdered and granular raw materials, an improvement in the powder characteristics of the powdered and granular raw materials has been required. For example, powdered CGM and CGF have characteristics that they have low bulk density and poor flowability and are apt to fly, and accordingly they have been required to improve their particle property from standpoint of view of transport cost and handling property.
SUMMARY OF THE INVENTION
An object of the present invention is to obtain cheaply a feed, industrially produced mixed feed or premix thereof which has two characteristics as stated below.
{circle around (1)} To disperse an amino acid more uniformly in feed as compared with the case that the hitherto used solid amino acid feed additive is mixed with a feed.
{circle around (2)} To have better powder characteristics as compared with the case that the hitherto used solid amino acid feed additive is mixed with a feed.
As a result of having ardently studied to achieve the above object, the present inventors have found that there can be obtained a feed, industrially produced mixed feed or premix thereof wherein an amino acid is uniformly dispersible and which has an improved powder characteristics by mixing (a) CGM powder or CGM powder (or their intermediate products produced during a corn wet milling step) with (b) an amino acid fermentation broth or its treated solution and thereafter drying the resultant mixture, alternatively by conducting drying during mixing of the raw materials (a) and (b).
That is, the present invention is an amino acid-enriched feed, industrially produced mixed feed with an amino acid or premix thereof which is obtainable by mixing (a) a feed raw material containing predominantly at least one feed component selected from the group consisting of CGM powder and CGF powder with (b) an amino acid fermentation broth containing 3 to 80% by weight of an amino acid or its treated solution and thereafter drying the resultant mixture or by conducting drying during mixing of the raw materials (a) and (b).
REFERENCES:
patent: 4919945 (1990-04-01), Spindler et al.
patent: 4929600 (1990-05-01), Cogburn
patent: 5145695 (1992-09-01), Smith et al.
patent: 5728675 (1998-03-01), Schaefer et al.
patent: 5846581 (1998-12-01), Catron
patent: 5871773 (1999-02-01), Rode et al.
patent: 6039952 (2000-03-01), Sunvold et al.
patent: 0182117 (1986-05-01), None
Ishiguri Toshihiko
Ito Hisao
Kida Minoru
Mori Kazuhiko
Ajinomoto Co. Inc.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sayala Chhaya D.
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