02068nas a2200205   4500008004100000022001500041245015200056210006900208260000800277300001200285490000800297520128200305100002501587700002801612700002301640700002601663700002401689700002301713856012601736       2018                        eng d  a 0959-652600a Process intensification strategies for enhanced holocellulose solubilization: Beneficiation of pineapple peel waste for cleaner butanol production0 aProcess intensification strategies for enhanced holocellulose so  cOCT  a937-9470 v1993 aBiorefinery sector has become a serious dispute for cleaner and sustainable development in recent years. In the present study, pretreatment of pineapple peel waste was carried out in high pressure reactor using various pretreatment-enhancers. The type and concentration effect of each enhancer on hemicellulose solubilization was systematically investigated. The binary acid (phenol + sulfuric acid) at 180 degrees C was found to be superior amongst other studied enhancers, giving 81.17% (w/v) hemicellulose solubilization in liquid-fraction under optimized conditions. Solid residue thus obtained was subjected to enzymatic hydrolysis that resulted into 24.50% (w/v) cellulose breakdown. Treated solid residue was further characterized by scanning electron microscopy and fourier transform infrared spectroscopy to elucidate structural changes. The pooled fractions (acid treated and enzymatically hydrolyzed) were fermented using Clostridium acetobutylicum NRRL B 527 which resulted in butanol production of 5.18 g/L with yield of 0.13 g butanol/g sugar consumed. Therefore, pretreatment of pineapple peel waste evaluated in this study can be considered as milestone in utilization of low cost feedstock, for bioenergy production. (C) 2018 Elsevier Ltd. All rights reserved.1 aKhedkar, Manisha, A.1 aNimbalkar, Pranhita, R.1 aKamble, Sanjay, P.1 aGaikwad, Shashank, G.1 aChavan, Prakash, V.1 aBankar, Sandip, B.  uhttps://library.ncl.res.in/content/process-intensification-strategies-enhanced-holocellulose-solubilization-beneficiation