A review of enhancing noodle quality: Fortification with micronutrients and substitution with nutrient-dense...

Noodles are usually rich in carbohydrates but lack essential nutrients such as protein, fiber, vitamins, and minerals, potentially causing metabolic problems if consumed in the long term. This review explores strategies to improve the quality of noodles through substitution and fortification. Substitution is replacing the main ingredient with a more nutrient-dense alternative, such as sweet potato starch, which has been shown to improve the nutritional content of noodles, such as fiber and beta carotene. Meanwhile, fortification is the addition of micronutrients to food products to restore or enhance levels of micronutrients that are not present in the food, which is usually done during the production process. However, substitution and fortification have their challenges. The substitution method usually causes a decrease in the physical quality of the noodles due to changes in the raw materials, thus reducing consumer acceptance of the final product. Meanwhile, fortified nutrients usually undergo considerable degradation during production, reducing their effectiveness. Further research and development should focus on new methods to help maintain physical quality while minimizing the loss of fortified or substituted nutrients. Technological approaches such as microencapsulation have proven effective in maintaining the stability of micronutrients such as L-5-methyltetrahydrofolate added during production. The methods of cold plasma, γ-irradiation, and multifrequency ultrasound, as well as the addition of xanthan gum and guar gum, are able to improve the moisture level, color, texture, elasticity, and chewiness, as well as consumer sensory acceptance. This technology enables manufacturers to meet customer demand for quality and nutritious noodle options.