Recent Progress on Improving the Quality of Bran-Enriched Extruded Snacks

Area of Science:

• Food Science
• Nutritional Science
• Material Science

Background:

• Consumer demand for sustainable and nutritious food products is increasing.
• Incorporating milling by-products like bran into starch-based snacks offers a dual benefit of sustainability and enhanced nutritional value.
• High fiber content in bran can negatively impact the quality of extruded snacks, particularly their expansion properties.

Purpose of the Study:

• To review recent findings on the effects of bran incorporation into extruded snacks.
• To address the opportunities, challenges, and potential solutions for bran-enriched snacks.
• To identify current knowledge gaps in the area of bran-enriched extruded snacks.

Main Methods:

• Review of existing scientific literature on bran enrichment in extruded snacks.
• Analysis of the effects of extrusion cooking on bran composition and structure.
• Evaluation of the impact of bran on the physicochemical and sensory characteristics of extruded snacks.

Main Results:

• Extrusion cooking alters bran's compositional aspects, affecting structural changes and product quality.
• Bran enrichment influences key quality traits of extruded snacks, including expansion rate, bulk density, and texture.
• Bran pre-treatments and processing optimization are identified as crucial for improving the quality of bran-enriched snacks.

Conclusions:

• Bran incorporation into extruded snacks presents a viable strategy for enhancing sustainability and nutritional value.
• Managing the challenges associated with bran's high fiber content is essential for maintaining snack quality.
• Further research into bran pre-treatments and extrusion process optimization is needed to maximize the potential of bran-enriched snacks.