Formation of quadruplex composite network during boiling delayed noodles digestion

Area of Science:

• Food Science
• Materials Science
• Biochemistry

Background:

• Noodle texture and glycemic index are influenced by complex molecular interactions.
• Existing noodle formulations often lack optimal structural integrity and health benefits.

Purpose of the Study:

• To investigate the self-assembly of a quadruplex composite network in noodles during boiling.
• To develop a low-glycemic-index (GI) noodle using wheat starch, gluten protein, oleic acid, and xanthan gum.

Main Methods:

• Studied the interaction between oleic acid, amylose, gluten protein, and xanthan gum.
• Formulated recombinant wheat noodles incorporating these four components.
• Assessed sensory qualities and predicted glycemic index (pGI) of the developed noodles.

Main Results:

• Oleic acid's hydrophobic chain formed a helical inclusion complex with amylose via hydrogen bonding.
• Gluten protein's charged residues bridged the hydrophilic end of the complex with negatively charged xanthan gum.
• The resulting quadruplex network in recombinant noodles yielded excellent sensory attributes and a pGI of 52.6.

Conclusions:

• A novel quadruplex composite network can be formed in noodles during boiling.
• This network structure significantly improves noodle quality and contributes to a low predicted glycemic index.
• The findings offer a new approach for producing healthier, high-quality noodles.