Comparing E211 - Sodium benzoate vs E429 - peptone
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Found in 16,173 products
Found in 2 products
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Interest over time for 2 keywords in U.S. during the last 10 years.
Interest over time for 3 keywords in U.S. during the last 10 years.
Popular questions
Is sodium benzoate bad for you?
Generally no—it's an approved preservative with an acceptable daily intake (ADI) of 0–5 mg/kg body weight, and typical intakes are well below this. Rare sensitivities (e.g., hives/asthma-like symptoms) can occur, and in vitamin C–containing drinks exposed to heat/light it can form trace benzene, which manufacturers work to minimize.
Is sodium benzoate safe?
Yes—it's authorized by regulators (e.g., FDA, EFSA, JECFA) with an ADI of 0–5 mg/kg body weight and is GRAS in foods up to 0.1%. Those with sensitivities may wish to limit it, and beverages containing both sodium benzoate and ascorbic acid should be protected from heat/light to prevent benzene formation.
Is sodium benzoate safe for skin?
Yes—it's widely used as a cosmetic preservative at low concentrations and is considered safe by regulatory and review bodies. It may occasionally cause mild irritation or sensitization, especially on very sensitive or damaged skin.
Is sodium benzoate bad for hair?
No—at the low levels used to preserve shampoos and conditioners it does not damage hair fibers. As with many preservatives, higher concentrations can irritate the scalp, but consumer products use small amounts.
Is sodium benzoate harmful?
Not at permitted food and cosmetic levels; safety limits (e.g., ADI 0–5 mg/kg body weight) are set to prevent harm. Main concerns are rare intolerance reactions and trace benzene formation in vitamin C–containing drinks under heat/light, which industry monitors and minimizes.
What is a peptone?
A peptone is a water‑soluble mix of short peptides, amino acids, and nutrients made by partial hydrolysis of proteins (e.g., casein, meat, or soy); it’s used as a nutrient source in culture media (tryptone is a casein peptone).
What is the purpose of peptone in the media?
It supplies readily assimilable nitrogen (peptides and amino acids), vitamins, and minerals to support microbial growth, including fastidious organisms.
How to make peptone water?
Dissolve 10 g peptone and 5 g sodium chloride in 1 L purified water, adjust pH to about 7.2 at 25°C, dispense, and sterilize by autoclaving at 121°C for 15 minutes.
What is buffered peptone water?
A phosphate‑buffered version of peptone water (per liter: peptone 10 g, NaCl 5 g, Na2HPO4 3.5 g, KH2PO4 1.5 g; pH ~7.2) used as a non‑selective pre‑enrichment medium to resuscitate stressed bacteria, especially Salmonella, from foods.
What is peptone in microbiology?
In microbiology, peptone refers to protein hydrolysates (from casein, meat, soy, etc.) rich in peptides and amino acids that serve as the main nitrogen source in culture media; different peptones (e.g., tryptone) can influence growth and test outcomes.