Improving the quality of instant noodles through the use of phospholipids

Phospholipids are functional amphiphilic additives widely applied in fried instant noodle production, delivering dual-sided quality optimization for noodle sheets during processing and end‑use consumption.

During frying, phospholipids migrate and accumulate on the surface and internal pore walls of noodle sheets. Owing to their hydrophilic-lipophilic balanced molecular structure, they modify surface interfacial tension of the gluten network. A compact thin interfacial film forms over porous noodle matrices, hindering penetration and retention of hot frying oil inside noodle pores. This mechanism effectively cuts down oil absorption of noodle sheets, lowering final oil content of finished instant noodles. Excessive oil uptake brings greasy mouthfeel, high calorie and accelerated lipid oxidation; reduced oil absorption mitigates these defects and extends shelf-life by slowing oxidative rancidity.

Meanwhile, phospholipids interact with starch and gluten protein inside noodle sheets. They inhibit excessive starch retrogradation after frying and cooling, and loosen the dense micro-structure of dehydrated noodle matrix. When hot water is added for rehydration, water molecules can rapidly infiltrate into internal noodle structures. Accordingly, rehydration speed is significantly improved. Noodles achieve full softening in shorter soaking time, avoiding hard core or uneven hydration. The cooked noodles obtain smoother texture, better elasticity and less stickiness.

Proper addition dosage should be controlled according to flour quality and production parameters. Insufficient phospholipid addition cannot realize expected anti-oil-absorption and rehydration-promoting effects. Excessive dosage may cause negative influences, such as weakened noodle strength, sticky surface and off‑flavor. Phospholipids derived from soy or egg yolk are commonly adopted for instant noodle manufacture, which fit food safety requirements without introducing peculiar odor to final products.