Abstract
The aim of present study was to obtain total reducing sugars (TRS) from bamboo under subcritical water (SCW) treatment in a batch reactor at the temperature ranging from 170°C to 220°C and 40min hydrolysis time. Experiments were performed to investigate the effects of temperature and time on TRS yield. The maximum TRS yield (42.21%) was obtained at lower temperature (180°C), however longer reaction time (25min). X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM) analysis were used to characterise treated and untreated bamboo samples. The XRD profile revealed that crystallinity of bamboo increased to 71.90% with increase in temperature up to 210°C and decreased thereafter to 70.92%. The first-order reaction kinetic model was used to fit the experimental data to obtain rate constants. From the Arrhenius plot, activation energy and pre-exponential factor at 25min time were found to be 17.97kJmol-1 and 0.154min-1, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 244-252 |
| Number of pages | 9 |
| Journal | Bioresource Technology |
| Volume | 191 |
| DOIs | |
| State | Published - Sep 1 2015 |
| Externally published | Yes |
Funding
The work reported in this article was financially supported by a research grant received under Fast Track Scheme from Department of Science and Technology ( DST ), Government of India (No. SR/FTP/ETA-0018/2010 ). Authors would like to thank Mr Gopi Kiran Mothe for his help in proof reading. Special thanks to centre for instrument facility (CIF, IIT Guwahati) for providing SEM analysis.
| Funders | Funder number |
|---|---|
| Department of Science and Technology, Ministry of Science and Technology, India | |
| Department of Science and Technology, Government of Kerala |
Keywords
- Bamboo
- Reaction kinetics
- Subcritical water treatment
- Total reducing sugars