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Calcium Stearyl‑2‑Lactylate (CSL, E482, CAS 5793‑94‑2) is an anionic food emulsifier synthesised from stearic acid and lactic acid, calcium‑salt form. It appears as off‑white waxy powder, poorly soluble in water. Approved globally as food additive, its key functions include dough conditioning, emulsification and anti‑staling. It strengthens gluten network in bread, improves loaf volume and softness, retards bread staling, mainly applied in baked goods, instant noodles and yeast‑leavened bakery products.
Calcium Stearyl‑2‑Lactylate (CSL, E482, CAS 5793‑94‑2) is an approved anionic food emulsifier and dough conditioner assessed by JECFA and EFSA. It is a calcium salt formed from stearic acid and lactic acid, presented as off‑white waxy powder with limited water solubility. It interacts with gluten proteins and starch molecules, delivering multiple technical functions mainly for yeast‑raised baked foods.
Its dominant application is in bread and yeast‑leavened bakery products. CSL strengthens the gluten‑protein network inside dough during mixing and fermentation. It improves dough tolerance against over‑mixing and temperature fluctuation, enhances gas retention capacity. Consequently, baked bread gains larger loaf volume, uniform crumb structure and better resilience. It also complexes with amylose starch molecules to retard retrogradation, effectively slowing bread staling and keeping crumb softness over shelf‑life. This extends product fresh‑keeping performance for commercial packaged bread.
CSL is widely used in rolls, buns, sweet dough and hamburger buns. For these products, it reduces dough stickiness, improves machinability on automated production lines, decreases reject rates during moulding and shaping processes. It is frequently combined with SSL (Sodium Stearyl‑2‑Lactylate) to optimise comprehensive performance. In instant noodles and steamed fermented flour products, CSL improves texture, reduces breakage and boosts rehydration property.
It also performs emulsifying roles in some baked goods containing fat. It promotes better dispersion of shortening within dough matrix, improves fat‑flour interaction, and enhances crust quality. Nevertheless, CSL is less effective in cake systems formulated with chemical leavening, where other emulsifiers such as monoglycerides are more commonly selected.
Usage limitations should be noticed. CSL has poor water solubility, so it is normally added together with oil or fat phase. Excessive dosage may generate waxy off‑flavour in finished goods, hence formulators strictly follow regulatory maximum usage limits. It is not suitable for beverage or aqueous food systems because of low solubility.
In summary, Calcium Stearyl‑2‑Lactylate (E482) is a specialised bakery additive. Its core food applications focus on yeast‑fermented breads, buns and fermented flour products. It reinforces gluten strength, optimises dough processing performance, increases bread volume and delays starch retrogradation to maintain soft texture. Combined usage with other emulsifiers is common practice. Manufacturers must control addition rates within permitted ranges and match its physical properties to suitable high‑fat flour‑based food matrices.
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