Related Experiment Video
Updated: Sep 7, 2026
Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues
Published on: March 9, 2021
Physical-assisted deep eutectic solvent improves the extraction of soluble dietary fiber from highland barley bran
Wenya Du1, Jilan Zhou1, Jianxia Wen1
1School of Food and Bioengineering, Food Microbiology Key Laboratory of Sichuan Province, Chongqing Key Laboratory of Sichuan-Chongqing Joint Construction of Specialty Food, Xihua University, Chengdu 610039, China.
Abstract:
Highland barley bran is a vastly underutilized by-product with limited efficient utilization techniques. This study established a green, low-carbon physical-assisted deep eutectic solvent (DES) method to extract soluble dietary fiber (SDF) from highland barley bran. The impacts of ultrasound, microwave and high-speed shearing assistance on the extraction yield, structure, chemical properties and in vitro biological activities of SDF were comprehensively evaluated. Response surface methodology was adopted to optimize DES and extraction parameters: extraction temperature 70 °C, extraction time 90 min, water content 48%, choline chloride-citric acid ratio 2:1, liquid-solid ratio 20:1 mL/g. The maximal SDF yield reached 12.08%, markedly exceeding 6.10% of conventional enzymatic extraction. Combined physical assistance further increased the average yield to 14.94%, with enhanced in vitro bioactivities. This study provides a theoretical basis for the high-value utilization of highland barley bran.
