maintained. Various pretreatments employed for successful biomass conversion
were presented in Fig. 3.
Sindhu et al. [8] performed dilute acid pretreatment on sugarcane tops and
observed a decrease in hemicellulose content from 18.9% to 6.16% under the
conditions of 3% w/w H 2 SO 4 , incubation time of 60 min at 121
C with 15% w/w
solid loading. Sindhu et al. [6] experimented surfactant-assisted acid pretreatment on
sugarcane tops and perceived 50% lignin removal and 53% hemicellulose removal
under 2.5% w/w Triton X-100 and 1.5% sulfuric acid concentration with 30%
biomass loading for a period of 45 min at 121
C. Sindhu et al. [14] enhanced the
sugar release using a novel method of surfactant-assisted ultrasound pretreatment on
sugarcane tops. Authors reported 40% lignin removal and 30.2% hemicellulose
removal under the conditions of 20% w/w biomass concentration and 3% w/w
surfactant (Tween 40) concentration, incubated at 121
C for 60 min followed by
1 min sonication. Sindhu et al. [11] observed a maximum lignin removal of 89.80%
and hemicellulose removal of 45.78% on NaOH pretreated SCT under the optimal
conditions of 3% NaOH, 15% biomass loading incubated for 60 min at 121
C.
Sherpa et al. [4] carried out statistical optimization on delignification of sugarcane
tops using laccase and observed 73.86% lignin removal under 20% w/v of substrate
concentration, 6 h incubation time, pH 7, and 500 IU/mL enzyme titer maintained at
40
C. Maurya et al. [15] observed 67% lignin removal on microwave alkalipretreated sugarcane tops under the conditions of 2% (w/v) NaOH and 10% biomass
loading with microwave operating at 320 W for 10 min. Srinorakutara et al. [1]
performed alkali and acid pretreatment on sugarcane trash for ethanol production
Fig. 3 Different pretreatment technologies available for biomass conversion
Lignocellulosic Sugarcane Tops for Bioethanol Production: An Overview
93
were presented in Fig. 3.
Sindhu et al. [8] performed dilute acid pretreatment on sugarcane tops and
observed a decrease in hemicellulose content from 18.9% to 6.16% under the
conditions of 3% w/w H 2 SO 4 , incubation time of 60 min at 121
C with 15% w/w
solid loading. Sindhu et al. [6] experimented surfactant-assisted acid pretreatment on
sugarcane tops and perceived 50% lignin removal and 53% hemicellulose removal
under 2.5% w/w Triton X-100 and 1.5% sulfuric acid concentration with 30%
biomass loading for a period of 45 min at 121
C. Sindhu et al. [14] enhanced the
sugar release using a novel method of surfactant-assisted ultrasound pretreatment on
sugarcane tops. Authors reported 40% lignin removal and 30.2% hemicellulose
removal under the conditions of 20% w/w biomass concentration and 3% w/w
surfactant (Tween 40) concentration, incubated at 121
C for 60 min followed by
1 min sonication. Sindhu et al. [11] observed a maximum lignin removal of 89.80%
and hemicellulose removal of 45.78% on NaOH pretreated SCT under the optimal
conditions of 3% NaOH, 15% biomass loading incubated for 60 min at 121
C.
Sherpa et al. [4] carried out statistical optimization on delignification of sugarcane
tops using laccase and observed 73.86% lignin removal under 20% w/v of substrate
concentration, 6 h incubation time, pH 7, and 500 IU/mL enzyme titer maintained at
40
C. Maurya et al. [15] observed 67% lignin removal on microwave alkalipretreated sugarcane tops under the conditions of 2% (w/v) NaOH and 10% biomass
loading with microwave operating at 320 W for 10 min. Srinorakutara et al. [1]
performed alkali and acid pretreatment on sugarcane trash for ethanol production
Fig. 3 Different pretreatment technologies available for biomass conversion
Lignocellulosic Sugarcane Tops for Bioethanol Production: An Overview
93