Structural changes in lignin during integrated process of steam explosion followed by alkaline hydrogen peroxide of Eucommia ulmoides Oliver and its effect on enzymatic hydrolysis

Bioprocessing of tea oil fruit hull with acetic acid organosolv pretreatment in combination with alkaline H2O2

“…The result is extremely competitive to other studies published on the uncommon feedstock and mild AAO-/AHP-based pretreatment. As shown in Table 3, some lignocellulosic feedstocks, i.e., C. inophyllum shell and E. ulmoides Oliver have gained much research interest [15, 26]. Like these uncommon lignocellulosic materials, TOFH is applicable as a value-added lignocellulosic feedstock for the future biofuel production.…”

“…Thus, a subsequent post-pretreatment is desirable for further delignification to release more fermentable sugars. AHP has been confirmed to be a very effective post-pretreatment by dozens of researchers [15, 27]. Zhu et al [15] studied the AHP pretreatment (1.5% H 2 O 2 , pH 11.5) of steam exploded E. ulmoides Oliver and achieved a good delignification of 92%.…”

“…AHP has been confirmed to be a very effective post-pretreatment by dozens of researchers [15, 27]. Zhu et al [15] studied the AHP pretreatment (1.5% H 2 O 2 , pH 11.5) of steam exploded E. ulmoides Oliver and achieved a good delignification of 92%. An AAO–NH 3 ·H 2 O combination process developed by Kim et al [22] supplied a guideline to find new pretreatment, though presenting a limited component selectivity (60% delignification and 67% cellulose retention) on empty fruit bunches probably due to the low solvent concentration.…”

“…The AHP pretreatment has gained an increasing interest in the further delignification by combination with other pretreatment methods [11], i.e., steam explosion [15], dilute acid [16–18], concentrated phosphoric acid [19], and alkaline [20, 21]. Zhu et al [15] removed 92% lignin from E. ulmoides wood with the steam explosion pretreatment followed by AHP, and thereby achieved a high glucose yield of above 90%. To our knowledge, there is very little information reported to date on a combination of the AAO pretreatment with the AHP acting on the lignocellulosic biomass [18, 22].…”

Bioethanol production from lignocellulosic sugarcane leaves and tops

“…Population growth and droughts, however, led to severe food shortages and resulted in the need to find alternative sources of cellulose for a sustainable supply for bioethanol production (Taherzadeh et al 2007). Starch-based crops such as sugarcane produce large volumes of waste in the form of plant leaves and tops (Shields and Boopathy, 2011), which contain lignocellulose, which can be used to produce ethanol (Zhu et al, 2015). Research is being carried out in order to find efficient, cost-effective and environmentally friendly ways to produce lignocellulose-based bioethanol (Rabelo et al, 2011;Shields and Boopathy, 2011).…”