Comparing E405 - Propane-1‚2-diol alginate vs E490 - Propylene glycol

Synonyms
E405
Propane-1‚2-diol alginate
Propylene glycol alginate
E490
Propylene glycol
1‚2-propanediol
propane-1‚2-diol
1‚2-dihydroxypropane
α-propylene glycol
methyl ethyl glycol
methylethylene glycol
Propan-1‚2-diol
Products

Found in 757 products

Found in 0 products

Search rank & volume
#290880 / mo🇺🇸U.S.
#4068.1K / mo🇺🇸U.S.
Awareness score

×0.18
under-aware

Awareness data is not available.

Search volume over time

Interest over time for 3 keywords in U.S. during the last 10 years.

Interest over time for 9 keywords in U.S. during the last 10 years.

Popular questions
  1. Is propylene glycol alginate bad for you?

    No—propylene glycol alginate (E405) is approved in the EU and US and is generally considered safe at permitted levels; most people tolerate it well, though very high intakes may cause mild digestive upset in some individuals.

  2. What is propylene glycol alginate made from?

    It’s made by reacting alginic acid extracted from brown seaweed (kelp) with propylene glycol. Some remaining acid groups may be neutralized with alkali (e.g., sodium).

  3. How do they make propylene glycol alginate?

    Manufacturers extract alginic acid from brown seaweed, purify it, then partially esterify it with propylene glycol under controlled conditions. The material is then neutralized as needed, dried, and milled into a powder.

  4. How is propylene glycol alginate made?

    By partially esterifying seaweed-derived alginic acid with propylene glycol, leaving some carboxyl groups free or neutralized with alkali, then drying the product. This process yields an emulsifier, stabilizer, and thickener used in foods.

  5. How to fix e405 fuel comms error?

    That appears to be a device/vehicle fault code unrelated to the food additive E405 (propylene glycol alginate); consult your equipment manual or the manufacturer’s support for troubleshooting.

  1. Is propylene glycol safe?

    Yes—when used within regulatory limits in foods, propylene glycol is considered safe; the FDA classifies it as GRAS and EFSA set an acceptable daily intake of 25 mg/kg body weight per day.

  2. What is propylene glycol used for?

    In foods it acts as a solvent and carrier for flavors and colors, a humectant to retain moisture, and sometimes a stabilizer; it’s also used as a solvent in medicines and cosmetics.

  3. Does propylene glycol cause cancer?

    No—major health agencies do not classify propylene glycol as carcinogenic, and studies have not linked typical exposures to cancer.

  4. Is propylene glycol antifreeze?

    Yes, it’s used as a less‑toxic antifreeze/heat‑transfer fluid (e.g., RV or food‑industry systems), which is separate from its low‑level use in foods.

  5. Is propylene glycol bad for you?

    At normal food levels it isn’t considered harmful; very high intakes can cause irritation or metabolic effects, and people with kidney or liver disease and infants may be more sensitive.