The Effects of Microwave-Assisted Pretreatment and Cofermentation on Bioethanol Production from Elephant Grass

Table 4

The reducing sugar data produced from the delignification process of elephant grass powder followed by acid hydrolysis using microwave irradiation heating.

H2SO4 (% v/v)	RS (g/L)	IP (W)	RS (g/L)	RT (min)	RS (g/L)	Temp (°C)	RS (g/L)
0.5	16.33	300	14.11	5	5.61	80	8.39
1	18.15	400	25.10	10	13.99	90	25.11
2	25.11	500	19.07	20	18.65	95	26.63
5	26.05	600	16.32	30	25.11	100	18.61
7	23.07	700	14.50	40	19.63	110	16.03

Abbreviations: H₂SO₄, sulfuric acid; RS, reducing sugar; IP, irradiation power; RT, reaction time; Temp, temperature. Variation in H₂SO₄ concentrations of each parameter was carried out without repetition.