Ball Milling Controls Particle Descriptors and Diffusion-Limited Leaching in a Wet Particulate System
Abstract
Ball milling can improve protein recovery from defatted rice bran, but the links among milling conditions, particle attributes, and extraction transport remain insufficiently defined. This study evaluated the effects of milling time (30–90 min) and rotational speed (30–120 rpm) on powder properties and alkaline protein extraction at pH 11 for 30–180 min at 24, 37, and 50 °C. Powders were characterized by laser diffraction, SEM image analysis, X-ray diffraction, and extraction-relevant indices describing the interfacial area and diffusion time scale. Extraction curves were fitted to first-order, pseudo-second-order, Peleg, and apparent Fick diffusion models. Milling reduced median particle size from 145 to 61 µm, increased fines (
Fields of Study & Subjects
Microencapsulation and Drying Processes
Coagulation and Flocculation Studies
Proteins in Food Systems
Publication details
- Journal / source
- Processes
- Publisher
- MDPI AG
- Volume
- 14
- Issue
- 10
- Pages
- 1633–1633
- Publication date
- 19 May 2026
- Language
- EN