2. Materials and methods
2.1. Sample
Yellow soybean hulls (Glycine max) were collected after soybean germination.
The hulls were rinsed with water. The moisture content was around 40 ± 5%.
The unprocessed and dried soybean hull powders were named soybean hull control (SBH-C), while the processed and dried soybean hull powders were soybean hull treatment (SHB-T).