| 초록 |
In our previous study, bioactive compounds were recovered from peanut shells via liquid extraction. The aim of this study is to utilize the solid residues generated from the liquid extraction process as a useful resource. The extracted peanut shell residue (ePSR) contained about 36.8% glucan, but the low enzymatic digestibility (ED) of 2.3% is the main barrier limiting glucose recovery. To improve the ED of ePSR, alkali pretreatment was performed using NaOH and KOH reagents (1-5%, w/w). The pretreatment conditions were as follows: a temperature of 121°C, a reaction time of 60 min, and a biomass loading of 100 g/L. As a result, the ePSR pretreated with 3% KOH solution showed the highest ED at 11.8%, which is about 5.0–fold improved compared to untreated ePSR (2.3%). To design a zero-waste platform, the use of residues generated after hydrolysis of ePSR is also planned in a follow-up study. |
