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Abstract:
Chinese gallnuts is also named Rhus chinensis Mill. It is a kind of medicinal material for many kinds of disease, which is rich in tannic acid, Firstly we extract the tannic acid from chinese gallnut and then make further chemical reaction to get Propyl Gallate.
The Propyl Gallate is white to milky white crystalline powder, odorless. Dissolved in 1000 parts water, 3 parts diethyl ether or 2000 parts peanut oil.
Molecular formula: C10H12O5
Molecular weight: 212.21
Structure:
Specification & Quality
98%-102% Propyl Gallate Feed grade
99.50% Propyl Gallate BP2013 standard, Medical grade
99% Propyl Gallate FCC-IV standard, Food grade
Function & Application
Not more than 0.01%: editable oil, fried food, biscuits and other products
Not more than 0.2g/kg: Livestock mix feed, normally dosage about 0.05g/kg
Propyl gallte has strong antioxidation if it is used in grease, but its solubility in grease is low, so it is recommended to compounding with the synergistic agent “citric acid” or BHA, BHT to get more antioxidation. In compounded dosage: total volume of BHA and BHT is not more than 0.1g/kg and Propyl gallte not more than 0.05g/kg.
