Related Experiment Video
Updated: Sep 10, 2025

Author Spotlight: Process Development for the Spray-Drying of Probiotic Bacteria and Evaluation of the Product Quality
Published on: April 7, 2023
Effect of spray drying conditions on the physical properties and digestibility of resistant starch microparticles
Qi Zheng1, Sanmei Long1, Mengyao Liu1
1College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266003, China.
Abstract:
Resistant starch microparticles (RSP) are gaining popularity in functional foods, and optimizing spray drying (SD) conditions is essential to enhance their properties. This study compares SD, vacuum freeze drying (VFD) and oven drying (OD) to investigate their impact on the morphology, quality, and digestibility of RSP. SD at 150 °C (SD-150) resulted in a uniform, non-agglomerated structure, with minimal particle clustering. Conversely, OD led to clustering due to slow moisture removal and localized hotspots. The color analysis showed that SD-150 had minimal color change. The yield and moisture content for SD-150 was 85.7 % and 5.15 %, outperforming OD (60.2%2 % yield, 21.62 % moisture). In vitro digestion showed significantly higher resistant starch content in SD (70.1 %) and OD (73.4 %) than the control (40.4 %). This study highlights the advantages of SD over traditional methods in energy efficiency, drying performance, and color stability, providing valuable insights for optimizing drying techniques in functional food.
More Related Videos
05:22Transverse Sectioning of Mature Rice Oryza sativa L. Kernels for Scanning Electron Microscopy Imaging Using Pipette Tips as Immobilization Support
Published on: January 25, 2022
08:52Method to Produce Durable Pellets at Lower Energy Consumption Using High Moisture Corn Stover and a Corn Starch Binder in a Flat Die Pellet Mill
Published on: June 15, 2016
Related Concept Videos
Factors Influencing Drug Absorption: Pharmaceutical Parameters
Factors Affecting Dissolution: Particle Size and Effective Surface Area
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
Factors Influencing Drug Absorption: Physicochemical Parameters
Enhanced drug absorption can be achieved by reducing particle sizes and increasing surface areas, thereby facilitating...