“…34−37 The utilization of CS as a substrate for biolixiviant production for REE leaching has been proposed in our previous study. Along with the resources discussed above, biomasses such as spruce wood, 44 pine wood, 45 birch wood, 46 poplar wood, 47 wheat straw, 48 switchgrass, 49 corn cob, 50 etc. can also be explored by interested researchers for the production of GA and XA due to the high percentage of glucan and xylan in these lignocellulosic materials.…”