E628 — Dipotassium Guanylate
Flavour enhancer - potassium salt of guanylic acid
Also known as: Dipotassium Guanylate
Verification required
Verify — Mushbooh
Source-dependent and requires verification. This additive may be derived from either halal (plant/synthetic) or haraam (animal) sources. Always check the product label or contact the manufacturer to verify the source.
Checking this in a shop right now?
Vegan / vegetarian label on pack → plant-based source → safe for this code
HFA / HMC / IFANCA / JAKIM logo → independently certified → safe
Neither? Follow the steps below.
School of Thought Breakdown
Hanafi
Verify source
Maliki
May permit
Shafi'i
Avoid if animal
Hanbali
Avoid if animal
Mushbooh - same concerns as E626 and E627.
What to do with this product
Follow these steps in order — most products resolve at step 1 or 2
Check for a "suitable for vegans" or "suitable for vegetarians" claim
If present, E628 comes from a plant-based source — safe for this code. Still check all other ingredients too.
Look for a halal certification logo on the pack
An HFA, HMC, IFANCA, JAKIM, or ESMA logo means the source has been independently audited. The E-code is confirmed halal in this product.
Neither? Here's what to do next:
Put it back and look for a certified alternative on the same shelf.
Check for products carrying an HFA, HMC, or IFANCA logo, or labelled "suitable for vegans". Either confirms a safe source.
Did you find a certified alternative?
Halal snacks — no MSG or nucleotide flavor enhancers:
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About E628
It is a potassium salt of guanylic acid. Guanylaic acid is a nucleotide of RNA obtained from torula yeast cells. Nucleotide commercially obtained from torula yeast cells. Torula yeast is grown on alcohol in USA to obtain nucleotide which mostly used in infant baby formula. In Europe if torula yeast grown on sugar cane and sodium inosinate is obtained from it then it is Halal otherwise it is not Halal.
Verification Required
This additive's halal status depends on its source. Check the product label for a halal certification mark, or contact the manufacturer directly.
What is E628 made from?
- torula yeast (grown on alcohol or sugar cane)
Foods that commonly contain E628
Food Category Guide
E628 is common in seasoning mixes — see the full halal guide →
Always check the ingredient label on the specific product - manufacturers may change formulations.
Frequently Asked Questions
Is E628 (Dipotassium Guanylate) halal?
E628 (Dipotassium Guanylate) is classified as Mushbooh (Questionable). Source-dependent and requires verification. This additive may be derived from either halal (plant/synthetic) or haraam (animal) sources. Always check the product label or contact the manufacturer to verify the source.
What is E628 used for?
E628 is used as a flavour enhancer - potassium salt of guanylic acid in food products.
What foods contain E628?
E628 (Dipotassium Guanylate) is commonly found in: seasoning mixes, some processed foods.
What is E628 made from?
E628 can be derived from the following sources: torula yeast (grown on alcohol or sugar cane).
What are the other names for E628?
E628 may appear on food labels as: Dipotassium Guanylate.
flavor enhancers — 20 E-codes: 3 Halal, 0 Haraam, 17 Mushbooh
Related E-Codes in flavor enhancers
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This information is for educational purposes only. For religious rulings, consult a qualified Islamic scholar or halal certification authority. E-code classifications may vary by source, manufacturing process, and school of thought.