The types of acidifiers and its advantages and disadvantages

Die Arten von Säuerungsmitteln und ihre Vor- und Nachteile

1) Inorganic acidifier

Inorganic acidifiers include hydrochloric acid, sulfuric acid, and phosphoric acid, and phosphoric acid is mainly used in production. Its advantages are strong acidity and low added cost. Dissociation of inorganic acids is fast, causing a sharp drop in pH values ​​in the esophagus and stomach of animals, possibly burning the esophagus and stomach, inhibiting the normal development of gastric acid secretion and gastric function. In addition, the pH-reducing effect of inorganic acids can only reach the stomach and cannot reach the posterior segment of the intestine, so the use of inorganic acids to inhibit the harmful bacteria by reducing the pH value is very limited. In addition, mineral acids may also destroy the electrolyte balance of the diet, causing a decrease in feed intake, which will seriously affect feed remuneration and animal growth.

2) Organic Acidifiers

The organic acidifier has a higher price, but has a good flavor, and has a strong antibacterial effect, and has a good effect in promoting growth performance of piglets. After an in-depth discussion on the mechanism of action of organic acids, people divided organic acids into two categories: 1 The role of indirect reduction of the number of harmful bacteria can only be achieved by lowering the pH value of the gastrointestinal environment, such as fumaric acid, citric acid, Malic acid, lactic acid and other macromolecular organic acids. This type of organic acid can only play its role in the stomach, can not reduce the pH value in the small intestine; but because the molecular weight is relatively large, the unit weight of acid molecules release less hydrogen ions, so their lower pH effect than small molecules organic Acid difference. 2 not only can reduce the pH in the environment, but also have an inhibitory effect on gram-negative bacteria, because they can destroy the bacterial cell membrane interfere with the synthesis of bacterial enzymes, thereby affecting the DNA replication of bacteria, and finally produce anti-gram-negative bacteria . Organic acids of this type include small-molecule organic acids such as formic acid, acetic acid, and propionic acid.

3) Compound acidifier

The compound acidifier is formed by compounding various specific organic acids and inorganic acids. The compound acidifier overcomes the disadvantages of single acidifier, single addition, large amount of addition, and strong corrosion. High-quality compound acidifier components can play a very good synergistic effect with each other, can greatly improve the function of the product, not only can reduce the pH value of the gastrointestinal tract, but also has a good antibacterial effect, so compound type The function of the acidifier is generally superior to that of the single type. Now gradually replace the single acidifier, becoming the trend of the development of feed acidifiers.

4)Use of organic acid salts and carriers to protect feed nutrients, equipment and workers

Although acidifiers acidify the feed, the directly added acid may corrode the feed production equipment, destroy the nutrients in the feed, especially vitamins and minerals, and damage the animal’s esophagus and stomach. If it is not handled properly, it may cause personal injury. Moreover, the directly added acid starts to dissociate rapidly in the esophagus and stomach, and the action time is very short. It may also inhibit the normal development of gastric acid secretion and gastric function. The pathogenic microorganisms are mainly located in the posterior segment of the intestine, so the direct addition of acidifiers does not act as a bacteriostasis.

The use of weak base salts of organic acids can greatly reduce these unfavorable factors. Studies have shown that weak acid salts of organic acids have bacteriostatic effects comparable to organic acids. In addition, the use of a carrier with a sustained-release function not only prevents acid from reacting with nutrients in equipment and feed, but also allows acid to be slowly released in the stomach and intestine, and its effect continues until the posterior segment of the intestine, playing a good role. Antibacterial effect.

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