E1502 – Butane-1,3-diol
FlavouringDescription
Colorless to slightly yellow, viscous liquid with a slightly sweet taste
Notes
Butane-1,3-diol, also known as 1,3-butylene glycol, is a colorless to slightly yellow, thick liquid that's produced industrially through chemical processes involving petroleum-based starting materials or through fermentation using specially engineered microorganisms. The manufacturing process creates a syrupy substance that's somewhat similar in consistency to glycerin, with a slightly sweet taste and no odor. This additive works primarily as a solvent and carrier for flavors, colors, and other food ingredients, helping to dissolve and distribute them evenly throughout products. It also functions as a humectant, meaning it helps retain moisture and prevents foods from drying out. You'll find it in some processed foods, flavor extracts, food colorings, and occasionally in baked goods and confectionery products where it helps maintain texture and shelf life. Butane-1,3-diol is a synthetic compound, though newer production methods can create it through fermentation, making some versions more 'bio-based.' It's suitable for vegetarians and vegans and doesn't typically cause allergic reactions. The additive is approved for food use in many countries, though it's used in relatively small quantities. Some health-conscious consumers prefer to minimize synthetic additives in their diet, but regulatory agencies consider it safe at the levels typically found in food products.