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GMC PharmaKimya · Gıda · Sanayi

Products

Antioxidant product portfolio

Our portfolio focuses on a single category: antioxidants and synergist substances that delay the oxidative degradation of fats. Products are supplied in feed and food grade.

BHA — Butylated Hydroxyanisole — Structural formulaOCH₃C(CH₃)₃OH

BHA

E320

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.

  • Feed fats, tallow and vegetable oil blends
  • Fishmeal and fish oil
  • Poultry, cattle and small ruminant compound feeds
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BHT — Butylated Hydroxytoluene — Structural formulaOHC(CH₃)₃(H₃C)₃CCH₃

BHT

E321

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.

  • Fat-supplemented poultry and cattle compound feeds
  • Fishmeal, fish oil and animal fats
  • Pet food and aquaculture feeds
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TBHQ — Tertiary Butylhydroquinone — Structural formulaOHC(CH₃)₃OH

TBHQ

E319

2-tert-Butylhydroquinone

A synthetic phenolic antioxidant offering superior protection in highly unsaturated fats and fish oil. It is heat-stable, shows no carry-through effect and is also favoured in frying oils.

  • Fishmeal and fish oil
  • Polyunsaturated vegetable oils
  • Frying and cooking oils
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PG — Propyl Gallate — Structural formulaCOOC₃H₇OHOHOH

PG

E310

Propyl 3,4,5-trihydroxybenzoate

A synthetic antioxidant with a gallic acid ester structure. It acts synergistically in animal fats and in blends with BHA/BHT, and is typically formulated together with citric acid.

  • Animal fats (tallow, poultry fat)
  • Vegetable oil and essential oil blends
  • BHA/BHT synergistic antioxidant formulations
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Citric Acid — Antioxidant Synergist — Structural formulaHOOCOHCOOHCOOH

Sitrik Asit

E330

2-Hydroxypropane-1,2,3-tricarboxylic acid

An organic acid that enhances the effectiveness of phenolic antioxidants. It chelates trace metals (iron, copper) that catalyse oxidation, providing a synergistic effect with BHA, BHT, TBHQ and PG.

  • Antioxidant blends containing BHA/BHT/TBHQ/PG
  • Feed fat stabilisation formulations
  • Synergist component in premixes and vitamin blends
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Comparison

Key identity data of the products in our portfolio, side by side.

Comparison
 BHABHTTBHQPGSitrik Asit
Chemical nametert-Butyl-4-hydroxyanisole (mixture of 2- and 3-isomers)2,6-di-tert-butyl-4-methylphenol2-tert-ButylhydroquinonePropyl 3,4,5-trihydroxybenzoate2-Hydroxypropane-1,2,3-tricarboxylic acid
CAS No25013-16-5128-37-01948-33-0121-79-977-92-9
EC No246-563-8204-881-4217-752-2204-498-2201-069-1
Additive codeE320E321E319E310E330
Molecular formulaC₁₁H₁₆O₂C₁₅H₂₄OC₁₀H₁₄O₂C₁₀H₁₂O₅C₆H₈O₇
Molar mass180,24 g/mol220,35 g/mol166,22 g/mol212,20 g/mol192,12 g/mol
Packaging25 kg kraft bags or fibre drums. Alternative packaging available on request.25 kg kraft bags. Alternative packaging available on request.25 kg kraft bags or fibre drums. Alternative packaging available on request.25 kg kraft bags. Alternative packaging available on request.25 kg kraft bags. Alternative packaging available on request.

Frequently asked

Frequently asked questions on supply and application

What is the difference between BHA and BHT?
Both are phenolic antioxidants, but they behave differently. BHA partially volatilises at high temperature and carries through to the finished product, which is an advantage in thermal processes such as pelleting and extrusion. BHT is more economical and provides long-term protection under storage conditions. In practice the two are often used together, as they act synergistically.
At which stage should the antioxidant be added to feed?
An antioxidant is effective when added before the oxidation chain has started. It is therefore recommended to add it to the feed fat or the fat-bearing raw material at the earliest possible stage, ensuring homogeneous distribution. Dosing it dissolved in fat gives better distribution than adding it as a powder to compound feed.
In which packaging are the products supplied?
As standard, 25 kg kraft bags or drums; fibre and plastic drum options are also available depending on the product. Alternative packaging requirements can be discussed at the order stage.
Do you provide technical documents and certificates of analysis?
Yes. Every shipment is delivered with the technical data sheet (TDS), the safety data sheet (SDS) and the certificate of analysis (CoA) of the dispatched batch. These documents can also be requested before placing an order.
Are samples available?
Samples can be requested for trial and validation work. Simply state the product, grade and intended use in the contact form or by e-mail.