Feed additives · Antioxidants
GMC Pharma supplies phenolic antioxidants that delay the oxidative degradation of fats in animal nutrition and food production. From our base in İzmir, we deliver to domestic and export markets with complete technical documentation and batch-based certificates of analysis.
Product portfolio
Two products, one field of expertise: oxidation control.
The oxidation chain
Degradation in fat is not a single event but a self-sustaining chain reaction. BHA and BHT enter at its third step and terminate it.
RH → R•
Heat, light, oxygen and metal ions abstract hydrogen from a fatty acid, forming the first free radical.
R• + O₂ → ROO•
ROO• + RH → ROOH + R•
Each radical creates the next. The reaction feeds itself; peroxides accumulate and vitamins are destroyed.
ROO• + AH → ROOH + A•
The antioxidant (AH) donates its phenolic hydrogen. The resulting A• radical is stable and cannot continue the chain.
BHA · BHT act here
Portfolio
Both products are offered in feed and food grade, in original packaging and with full documentation.
tert-Butyl-4-hydroxyanisole (mixture of 2- and 3-isomers)
A phenolic antioxidant that delays oxidative degradation in fats and fat-bearing feed materials. Its thermal stability preserves activity through pelleting and extrusion.
2,6-di-tert-butyl-4-methylphenol
A cost-effective, high-purity phenolic antioxidant widely used in feed, fats and premixes. It extends shelf life by delaying colour and odour deterioration.
How we work
Supplying antioxidants does not end with sourcing the right molecule. It has to arrive in the right grade, with the right documents, on time.
Supplier production sites and batch analyses are checked against specification before shipment. Non-conforming batches are not dispatched.
Every shipment is delivered with a technical data sheet (TDS), safety data sheet (SDS) and batch certificate of analysis (CoA).
Domestic shipments and export operations run through our İzmir location, with stock planning for repeat orders.
We provide technical guidance on dosage and mixing method according to the feed matrix, fat content and process.
Where they are used
Antioxidants are used in compound feed, premixes, feed fats and animal protein sources to protect shelf life and nutritional value.
Broiler and layer feeds, fat-supplemented rations
Dairy and beef feeds, bypass fat blends
Lamb rearing and fattening feeds
Fishmeal, fish oil and extruded fish feeds
Dry food, fat-coated products and treats
Vitamin-mineral premixes, tallow, vegetable oil blends
Technical background
Unsaturated fatty acids in feed undergo autoxidation under the influence of oxygen, heat, light and metal ions. This chain reaction first forms peroxides, then aldehydes and ketones, resulting in rancid odour, colour loss and reduced palatability.
The real loss, however, is nutritional rather than sensory. Oxidation destroys vitamins A, D and E, carotenoids and essential fatty acids. Even when the ration is correct on paper, the nutritional value the animal receives falls, and feed intake and performance decline.
Phenolic antioxidants such as BHA and BHT stop the reaction by donating hydrogen to the free radicals that initiate the chain. Added at the correct dosage and at the right stage of production, they extend the induction period of the feed significantly.
Simply state the product, grade, quantity and delivery terms. Sample and technical document requests can be sent through the same channel.