DE2041781A1 - Preservative and process for preserving animal feed - Google Patents

Description

FARBWERTQi: HOECHST AKTIENGESELLSCHAFT vorinalfl Heister Lucius & Brüßing

Date: August 19, 1970 Dr.BO/jk

File number: HOE 7 0 / P 15 ² J

Konsei'Yieruagsstoff and ancestors JguiaIlalt barmach on of Fu 11 eri * x 1 1 a

The invention relates to a preservative and a method for preserving foodstuffs by adding a mixture of sorbic acid, acetic acid and an inert carrier.

It is well known that grain with a water content is more old 14 percent by weight no longer stored labile, water content above 20 percent by weight lead to complete spoilage within a few days due to outgrowth and skin melon infestation. First moisture content of less than 14 percent by weight make cereal grains long-lasting, even in larger quantities. Therefore, cereals with higher water contents, as is the case in Central and Northern Europe due to the influence of Witterimgo accrues »are preserved, either by drying in the field or in suitable drying facilities, Das Drying on your field differs with the current working method agricultural technology, namely when used of combines, largely made up.

The drying, which is still practiced on a large scale, with The help of externally supplied heat in special drying systems leads to satisfactory results, but is dated Energy expenditure and not in terms of costs in every case, e.g. with feed grain, justifiable, with compound feed l.r »t off For technical reasons, post-drying is often hardly possible.

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Hence, there is, a need, beside or on; j parts physical experience of preserving, namely drying, applying chemical processes.

It is already known that the grain propionic acid · as a fungistatic suspend. This lowers even with high moisture contents a good effect and is relatively economical, but disadvantageous are the intentional inherent gaze, the is still clearly noticeable in the preserved grain and the cumbersome handling. Because of their Xta effect is propionic acid only under certain precautionary measures applicable, because of their highly corrosive properties Corrosion-resistant materials in the area of action, such as Edel- ™ steel, aluminum or glass can be used. After all, propionic acid can only be used as a liquid with the help of special metering devices be sprayed onto the grain, wherein Even distribution, which is essential for safe conservation, can encounter difficulties. This is particularly problematic with finished feed ™ mixtures, such as B. Chick feed, pig feed and the like,.

It has been shown that a solid mixture of sorbic acid with acetic acid and an inert carrier, particular advantages in animal preservation of grain and feed ) possesses, especially those who, as a result of their content, have Carbohydrates and moisture susceptible to Sefthnmel infestation s lntl,

The subject of the invention is now a means and a method KUBi preservation of feed and mixed feed, which is characterized in that wan the feed or Mlachfuttor with a mixture of sorbic acid and acetic acid with an inert carrier, the content of the feed at Sorfoinöäuro iml 0.02 to 1 percent by weight, preferably with O ₉ OS up to 0.2 percent by weight, and the acetic acid content at 0.1 to 2 percent by weight,

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preferably 0.2 to 0.8 percent by weight. Bolus alba (white clay), bran, kieselguhr, powdered plastic, for example, are used as inert carriers or the like is used in an amount of about 5 to 50 times the amount of acetic acid. The amount of carrier is aimed in the individual case according to the technical requirements; so larger or smaller amounts can also be used will.

The use of sorbic acid as a preservative for food is known, as is its use in animal feed. The preservative effect of acetic acid is also known. B. in the production of vinegar sauces, Fine salads, fish preserves and other foods.

Because of the very high density of germs found in animal feed on a grain basis are normally to be expected, the effect of both substances is sufficient, however, when used alone not for the preservation of animal feed. This is especially true for moist grain. It also has acetic acid Applied alone in liquid form in higher concentrations the same disadvantages as propionic acid, namely difficult Dosability, caustic effect, possibility of odor nuisance and corrosion on the equipment used.

In contrast, the combination according to the invention of sorbic acid and acetic acid with an inert carrier is very simple apply. It can be mixed in dry, both with moist grain and with feed mixes is advantageous. The mixture according to the invention is also safe, it is economical and does not show any Corrosion effect on the mixing and storage tanks.

+) to handle

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The application does not pose a toxicological risk because both Sorbic acid and acetic acid are harmless to humans and animals are, as numerous experiments have shown. Both active ingredients are even treated as food additives. The combination works not only against all molds Kind, including mycotoxin-forming agents, but prevents also the germination of the grain; even existing germs dry up after the treatment. The inventive Process therefore not only offers protection against microbiological, but also protection against biochemical spoilage.

The preservative effect of the mixture according to the invention is quite surprising because it is substantially above the Effect of the individual components sorbic acid and acetic acid goes beyond. The special effect of the mixture is therefore more synergistic Nature, it cannot be interpreted by the lowering of the pH value, as a comparison experiment with a Basically similarly composed mixture of sorbic acid and phosphoric acid with an inert carrier substance gave less favorable shelf life results.

example 1

Winter barley (grains) was brought to a moisture content of 25 percent by weight and in a laboratory mixer with different Amounts of sorbic acid, acetic acid and mixtures of both substances with 10 times the amount of Bolus alba, based on acetic acid, added. The following table provides information about the shelf life results achieved:

BATH

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Additional period until the beginning

of shiinmel infestation

Control ß days

0.05 wt.% Sorbic acid, 8 days

0.10 wt.% Sorbic 8 days

0.20 wt % sorbic acid 10 days

0.40 wt.% Sorbic 12 days

0.15 wt.% Acetic acid 8 days

0.30% by weight acetic acid 13 days

0.60 wt.% Acetic acid, 20 days

1.20% by weight acetic acid 31 days

0.05% by weight sorbic acid
+ 0.15 wt.% Acetic acid ^{10 Ί & ΰ &}

0.05% by weight sorbic acid.

> 32 days + 0.30 wt.% Acetic acid ^b

0.20 wt% sorbic acid
+ 0.60% by weight acetic acid ^ ^{32 days}

The experiment shows that a mixture of sorbic acid with Acetic acid is much more effective than the egg components for themselves.

Example_2

Winter barley (grains) was adjusted to a moisture content of 20 percent by weight or 2a or 30 percent by weight and in the laboratory mixer with different amounts of mixtures of sorbic acid, acetic acid and KLeio Ln der 20 times the amount, based on acetic acid, verseIst, Übov die The shelf life results achieved © are given in the following table Exposure:

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Period until the beginning of the Mold infestation in days box different water contents

20% by weight 25% by weight. S 30 Gev /

control
0.1 Gev /. %
+ 0.1 G & vi. /O Sorbic acid
Vinegar outside 6th
20th 6th
10 5
6th 0.1 wt. %
+ 0.2 wt.% Sorbic acid
acetic acid 24 14th 6th 0.1 gen '. %
+ 0.3 Ge <7. % Sorbic acid
■ acetic acid > 54 34 10 0.1 Gev /. %
+ 0.4 G <; \ 7. % Sorbic acid
Acetic acid > 54 14th 0.1 wt.%
+ 0.6 Ge? /. % Sorbic acid
acetic acid 54 0.1 Ge? /. %
+ 0.8% by weight Sorbic acid
acetic acid > 54 Example 3

Winter barley (grains) has a moisture content of 40 percent by weight and brought in the laboratory mixer with mixtures of sorbic acid, acetic acid and diatomaceous earth in 13-fold » Amounts, based on acetic acid, added. The following table shows the shelf life results achieved Exposure:

control

0.1% by weight sorbiflic acid h 1.0 Qe.fi,% acetic acid

0.2 wt.% Sorbic acid 4- .1,2 wt,% acetic acid

Period until the beginning of the Schiiiffiielbefal] Ls_

3 days

> 100 days> 100 days

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Example 4

Laying hens sole feed (flour form) of commercial composition was adjusted to a moisture content of 15 or 20 Brought percent by weight and placed in the laboratory mixer with different amounts of sorbic acid, acetic acid and mixtures of both substances with 10 times the amount of Bolus alba, based on acetic acid, added, the following table provides information about the shelf life results achieved:

additive

Time until the onset of mold infestation in days different water contents

15% by weight 20% by weight

control

0.1% by weight sorbic acid 0.2% by weight sorbic acid 0.4% by weight sorbic acid 0.8% by weight % Sorbic acid

0.2% by weight acetic acid

16 24 28 36 49

20th

8 10 12 14 16

11

0.1% by weight sorbic acid + 0.2% by weight acetic acid

0.1% by weight sorbic acid 4- 0.4% by weight acetic acid

0.1% by weight sorbic acid + 0.8 % by weight acetic acid

42
> 60
> 60

12 30 42

Example 5

Pigsty t feed (flour form) of commercially available composition was brought to a moisture content of 15 or 20 percent by weight and mixed in the laboratory mixer with different amounts of sorbic acid, acetic acid and mixtures of both substances with 10 times the amount of Bolus alba, based on acetic acid . 209809/0958 - ^/ -

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The following table provides information about the shelf life results achieved:

additive

Period until the beginning of the SoMföuielbefalls in days different water contents

Sorbic acid 15 wt.% 20 wt. % control Sorbic acid 16 8th 0.1 wt.% Sorbic acid 24 10 0.2 wt.% Sorbic acid 30th 12th 0.4 wt.% acetic acid 40 16 0.8 wt.% Sorbic acid
Acetic acid ^ 56 18th 0.2 wt. % Sorbic acid
acetic acid 20th 8th 0.1 wt.%
+ 0.2 wt.% Sorbic acid
acetic acid 42 12th 0.1 wt.%
+ 0.4% by weight > 60 32 0.1 wt.%
+ 0.8% by weight > 60 44 Example 6

Winter barley (grains) was brought to a moisture content of 25 percent by weight and in a laboratory mixer with different Amounts of sorbic acid, phosphoric acid and mixtures of sorbic acid and phosphoric acid and sorbic acid and acetic acid with 10 times the amount of bolus alba, based on phosphoric acid or acetic acid. About the achieved The following table provides information about shelf life results:

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Additional period until the beginning

mold growth

Control 6 days

0.1% by weight sorbic acid 8 days

0.3% by weight phosphoric acid 8 days

0.1% sorbic acid _{g T e} wt.

% Phosphoric acid + 0.3 wt. ^G

0.1% by weight sorbic acid V _{32 T}

+ 0.3% by weight acetic acid ^b

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Claims (1)

^ 1781 Pa t entan.spru c h Preservative for feed and compound feed, included from a mixture of 0.02 to 1.0 percent by weight, preferably o, o5 to o.2 percent by weight sorbic acid, o, l to 2 percent by weight, preferably 0.2 to 0.8 percent by weight acetic acid, based on the feed, and an inert carrier.-3toiM · '.. ORIGINAL 209809/0958