Metabolomics and food processing: from semolina to pasta

Area of Science:

• Food Science
• Analytical Chemistry
• Nutritional Biochemistry

Background:

• Industrial pasta production involves transforming semolina into dried pasta.
• Understanding metabolite changes during processing is crucial for food quality and nutritional assessment.
• Variations in processing conditions can impact the final product's biochemical composition.

Purpose of the Study:

• To investigate metabolite variations during industrial pasta processing.
• To compare metabolite profiles of wholemeal and refined pasta.
• To identify metabolite transformations influenced by processing conditions.

Main Methods:

• Metabolite profiling of five commercial pasta products from semolina to dried pasta.
• Detection and quantification of up to 76 different metabolites.
• Comparative analysis of metabolite content between wholemeal and refined pasta types.

Main Results:

• Significant differences in metabolite composition were observed between wholemeal and refined pasta.
• Wholemeal pasta exhibited higher levels of phytosterols, policosanols, unsaturated fatty acids, amino acids, carotenoids, and minerals.
• Distinct metabolite profiles were found even among refined pasta samples with similar quality parameters.
• Metabolite transformations were confirmed to be dependent on specific pasta-making process conditions.

Conclusions:

• Metabolite profiling is a powerful tool for investigating food processing-related changes.
• Pasta processing significantly impacts the metabolite composition, affecting nutritional value.
• Metabolite analysis can reveal subtle differences in pasta quality not captured by conventional parameters.