Investigating potato flour processing methods and ratios for noodle production

Area of Science:

• Food Science
• Cereal Science
• Ingredient Functionality

Background:

• Wheat flour is a staple in noodle production.
• Potato flour offers potential as a partial wheat flour substitute.
• Different potato flour processing methods impact functional properties.

Purpose of the Study:

• To determine the optimal potato pretreatment method for noodle processing.
• To evaluate the effects of partial wheat flour substitution with potato flour on noodle quality.
• To compare freeze-drying (FD) and low-temperature blanching/oven-drying (LTB_OD) for potato flour processing.

Main Methods:

• Wheat flour was substituted with 10%, 30%, and 50% potato flour processed via FD or LTB_OD.
• Particle size, pasting properties, dough development, microstructure, color, cooking loss, and texture were analyzed.
• Sensory evaluation (overall liking) was conducted.

Main Results:

• Freeze-dried potato flour decreased particle size and improved pasting properties compared to LTB_OD.
• High substitution levels (50%) negatively impacted gluten structure and noodle texture.
• Noodle brightness decreased, yellowness increased, and cooking loss was higher with LTB_OD flour.

Conclusions:

• Freeze-dried potato flour is superior to LTB_OD potato flour for wheat flour substitution in noodles.
• Optimal substitution levels are up to 30% FD potato flour or 10% LTB_OD potato flour for best overall liking.
• FD processing enhances noodle quality attributes and consumer preference.