Food(Feed) Additives

Zinc sulfate heptahydrate is a white particle or powder with orthorhombic crystal. It is a common astringent. It will be weathered in dry air. When heated to 30 ℃, it loses one molecule of crystal water, six molecules of crystal water at 100 ℃, seven molecules of crystal water at 280 ℃, and decomposes into zinc oxide and sulfur trioxide at 767 ℃. It is soluble in water and slightly soluble in ethanol and glycerol. It is mainly used as raw materials for manufacturing zinc barium and other zinc salts, as well as important auxiliary raw materials for viscose fiber and vinylon fiber. It is also used as printing and dyeing mordant, wood and leather preservation agent, bone glue clarification and preservation agent, medical emetic and fungicide, and trace element fertilizer in agriculture.

This product is used for bleaching cotton fabrics and organic fabrics. It is used as reducing agent in dyestuff, papermaking, tanning, chemical synthesis and other industries. The pharmaceutical industry is used to produce intermediates of analgin and aminopyrine. Food grade products are used as bleach, preservative and antioxidant.

It can be used as common analytical reagent, oxidant and diazotization reagent, and also for the synthesis of nitrite and nitroso compounds. It can be used as mordant, bleaching agent, metal heat treatment agent, electroplating corrosion inhibitor, medical instrument disinfectant, preservative, etc.

Sodium Chloride is a metal halide composed of sodium and chloride with sodium and chloride replacement capabilities. When depleted in the body, sodium must be replaced in order to maintain intracellular osmolarity, nerve conduction, muscle contraction and normal renal function.Sodium chloride is the main component of table salt, with the chemical formula of NaCl. Sodium chloride is the main component of salt in seawater and the most common seasoning. Excessive intake of salt is prone to high blood pressure.

Natamycin has a strong inhibitory effect on molds, yeasts and fungi, but has no inhibitory effect on bacteria, viruses and other microorganisms. Natamycin has a certain heat treatment resistance, relatively stable in dry state, and can withstand short-term high temperature (100 ℃); However, it is not suitable to contact with sunlight because of its ring chemical structure and sensitivity to ultraviolet rays. The anchor stability of natamycin activity is affected by pH value, temperature, light intensity, oxidants and heavy metals, so the product should avoid contact with oxides and hydrogen sulfide compounds. In June 1982, the FDA officially approved natamycin as a food preservative and classified it as gras products. Natamycin is a highly effective inhibitor of mold, yeast and fungi. It is used to inhibit mold, yeast and fungi in food. It is very safe and reliable to human body, and does not affect the flavor of products. It is widely used in cheese, meat products, cakes, fruit juice and other foods all over the world. The product is refined from streptomycin by deep fermentation and multi-step extraction process. The preparation is made by mixing 50% natamycin and 50% lactose.