DD275390A1 - NEW MEANS FOR CEREAL CONSERVATION - Google Patents

Abstract

The invention has a new agent for grain preservation content. It is primarily used in agriculture for the preservation of animal feed, in particular grain, application. The new agent serves to prevent mold growth and thus mycotoxin formation. The invention consists of a zeolitic molecular sieve or sheet silicate on which antimicrobial and / or microbicidal substances are adsorbed. With the agent according to the invention, an optimum preserving effect is achieved by having a high activity and a lasting effect.

Description

Field of application of the invention

The invention relates to a novel means for preserving stored feed, in particular of cereals and maize, in agriculture.

The new product is used in storage warehouses to prevent mold growth and the associated mycotoxin formation in highly moisture-containing storage goods during storage.

Characteristic of the known state of the art

The most important molds that colonize cereals include:

Penicillium

Aspergillus

Alternaria

Fusorium

Mucor

Rhizopus.

Depending on the growth conditions prevails a certain kind. The low molecular weight carbohydrates contained in the flour body are converted into higher molecular weight carbohydrates. This releases water. This carries the risk of the spread of mold.

It is known that lower aliphalic aldehydes and their derivatives (DD-PS 122327, JP-PS 7325922, DE-PS 2354385), 2-alkyl-substituted alk-2-en-1-ale (DD-PS 1430237), alcohols of aliphalic Series in conjunction with lower aliphatic aldehydes (German Pat. No. 2,516,670), 2-ethylhex-2-en-1-al, 2-ethylhexan-2-ol, 1-acetoxy-2-ethyl-hexa-1,3-diene ( DD-PS 161132) and enol acylates of alk-2-en-1-alene in combination with 2-ethylhex-2-en-1-al (DD-PS 161129) for the preservation of food and feed.

The effect of such cereal preservatives is not satisfactory at low levels of active ingredient and especially their duration of action is insufficient.

In the case of the relatively high application rates, essential quality impairments are caused in the biological products to be preserved.

Known preservatives such as propionic acid, sorbic acid, benzoic acid are disadvantageous in addition to their risk of corrosion for transport and application equipment only at high dosages on a sufficient preservation effect. Therefore, the problem of preventing the growth or propagation of microorganisms, especially on cereals, is only partially solved, and to maintain high and stable yields, conservative stockpiling is required, even under unfavorable weather conditions and resulting storage conditions, as with the known technical solutions is not feasible.

Object of the invention

The aim of the invention is to develop a new agent for feed conservation, which ensures high yields and a safe stockpiling and thus an improvement in the quality of the feed.

Explanation of the essence of the invention

The invention has for its object to develop a new agent with optimal preservative effect in feed, which has high efficacy and long-term effect at low doses.

According to the invention, the task; in that the preservative consists of a zeolitic molecular sieve of the types X, Y or A of a sheet silicate of the type Na magadiite, are adsorbed on the antimicrobial and / or microbicidal substances.

The preservative according to the invention shows at substantially lower dosage of active ingredient compared to the known preservative concentrations equivalent efficacy with significant prolongation of the duration of action and lowering of the moisture content.

The preservative according to the invention reduces growth of mold fungi and associated mycotoxin formations in highly moisturized stored goods during storage.

For the treatment of agricultural products, such as cereals and animal feed, the amount of active ingredient is highly dependent on the moisture content. A high humidity requires correspondingly higher doses of active ingredient. Another advantage of the composition of the invention lies in its favorable toxicological property and eliminates the problem of removal of the agent, since the carrier material has no toxic effect on organisms and thus can distribute as an inert material (fiber) in the crop.

With the solution according to the invention, a preservative has been developed that meets the requirements of the storage of animal feed.

The following exemplary embodiment serves to explain the effectiveness of the preservative according to the invention.

Ausfüi'rungsbeispiel

Table I: Mold on cereals

Initial conditions with practical storage of cereals:

Storage temperature: 2O ⁰ C ± 5 ⁰ C Moisture content: 18% ± 3% Relative humidity: 65% ± 5% Trial amount: 300g

variant Active substance amount in% Mold infestation in% 2 4 8th Moisture content in% Incubation time in weeks 1 2 20.3 4 8th 16 Grain untreated 1 100 48 55 60 16 19.8 20.2 19.7 19.2 19.4 Cereals with active substance A, pure 5 45 45 51 56 72 19,9 20,2 20.0 19.8 20.1 Cereals with active ingredients, pure 5 43 68

Cereals with active substance A, Addulrt »

Cereals with

drugs

adduct "

2.5

? 5

34 36 39 43 51 15,8 15,4 15,2 15,2 14,9

31 34 37 40 48 15.7 15.6 15.0 15.1 14.7

<Add'jkt of drug A: ethylhexenalMA

Degree of loading 10 parts by weight in% • Adduct of the active substance B: Bromsalicylisopropylamide / ISX

Degree of loading 50 parts by weight in%

The determination of mold infestation was carried out by the method that winter wheat was brought to a grain moisture content of 20.5%. The trial amount was 300g winter wheat. The untreated and treated with drug or drug adduct cereal was filled in plastic containers and hermetically sealed. The experimental amount was chosen so that the plastic containers were completely filled. With these experimental conditions, the conditions in a cooled grain stack were almost reached. The room temperature fluctuated between +4 ⁰ C and +12 ⁰ C. The humidity meter type 2001/2002 was used to determine the moisture content. The evaluation of the mold infestation on the cereal grains was carried out by random sampling of 100 grains per test variant. The spoiled grains were selected and set in proportion to the total number.

Claims (3)

1. New agent for cereal preservation, characterized in that antimicrobially active substances are adsorbed on a carrier substance with an active ingredient dosage of 10 to 70 weight units in%, preferably 20 to 50 weight units in%. 2. A new means for Getriedekonservierung according to claim 1, characterized in that the carrier substance consists of molecular sieves of the type A, X or Y or Schichisilikat of the type Na magadiite in powder or granular form. 3. New means for Getriedekonservierung according to claim 1, characterized in that are used as active substances antifungal, antibacterial or microbicidal agents.