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Frequently Asked Questions on Phytase Enzyme



The decomposed products are inositol, inorganic phosphorus and other substances that may be combined with phytic acid, such as calcium, zinc, manganese and other trace elements, as well as protein and starch.It can degrade phytase enzyme in feed, generate inorganic phosphorus, inositol, and protein, amino acid, trace elements, etc.combined with phytic acid, thereby reducing the addition of inorganic phosphorus in feed for monogastric animals, and can increase the content of phosphorus in feed.Utilization rate, save inorganic phosphorus feed resources, and reduce environmental pollution caused by high phosphorus in animal manure excrement.


The research on phytase enzyme began in the 1960s.With the development of molecular biology, the current research on phytase enzyme has entered the molecular level.Phytase enzyme from various microbial sources has been separated and purified and has been deeply studied.Physiological and biochemical research.Thereby changing the enzymatic properties of phytase enzyme such as temperature resistance, PH adaptability, catalytic performance, etc., and improving its effectiveness in feed.Phytase enzyme has been widely used in feed mills and livestock farms in European and American animal husbandry developed countries.


Why can't monogastric animals utilize phytate phosphorus?


Since phytic acid can only be hydrolyzed by phytase with a specific function, and there is almost no phytase that can play a role in the digestive tract of monogastric animals, the phytic acid eaten cannot be hydrolyzed, and phytate phosphorus is excreted together with feces.Be exploited.


What is the reason why phytase enzyme reduces the cost of feed production?


There are three reasons why phytase enzyme reduces feed cost: Phytic acid can quantitatively replace inorganic phosphorus feed.In the absence of phytase enzyme, inorganic phosphorus feed such as calcium hydrogen phosphate or bone meal must be added, and the price of phosphorus is high.At the same time, phytic acid improves the digestibility of various nutrients in beverages and increases the amount of available nutrients; finally, because phytase enzyme is a catalyst with a high concentration, a small amount of addition can replace dozens to hundreds of times of phosphoric acid Calcium hydrogen or bone meal saves valuable space for feed formula design and further reduces costs.


Is phytase enzyme toxic or side effects to pigs, chickens and other animals?


Belonging to the completely non-toxic type, the LD50 of pure phytase fermented ultrafiltrate rats orally is >2000mg.Rats inhaled LC>0.5mg/(L.4h).For the product, it has been reported that the tolerance level of chickens is 10 times of the maximum recommended level; the tolerance level of pigs is 50 times of the maximum recommended level.Phytase enzyme has no side effects on livestock and poultry.Since monogastric animals do not secrete phytase enzyme in their own bodies, exogenous phytase enzyme does not have the negative feedback effect of similar enzymes in the body.It has no effect on the normal functioning of the digestive system.These have been confirmed by a large number of long-term application results.


What is the suitable temperature for phytase enzyme to function?


The optimum temperature for thermostable phytase is 55°C~75°C.After post-processing protection products, the upper temperature limit has been increased.The limit of high temperature resistance varies with the product.The significance of high temperature limit is to tolerate the temperature of feed processing.As far as the products currently on the market are concerned, a large number of enzymes will be inactivated and inactivated if the temperature exceeds 82-85 °C.There are unconfirmed commercial reports that products that can withstand high temperatures of 90°C will soon be available on the market.The significance of the low temperature limit is mainly in the enzyme efficiency of cold water fish feed.


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