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Moderate pretreatment of oil palm empty fruit bunches for optimal production of xylitol via enzymatic hydrolysis and fermentation
Harahap B.M.a, Kresnowati M.T.A.P.a
a Microbiology and Bioprocess Technology Laboratory, Chemical Engineering Department, Institut Teknologi Bandung, Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2018, Springer-Verlag GmbH Germany, part of Springer Nature.Moderate pretreatment methods were evaluated on oil palm empty fruit bunches (OPEFB) in order to obtain xylose-rich hydrolysate for xylitol production via enzymatic hydrolysis and fermentation. Assessments on the effects of catalysts (autohydrolysis/water, acetic acid, or ammonia) and the corresponding concentration and pretreatment time at moderate pressure/temperature were conducted while the process performance was evaluated by enzymatic hydrolysis. Most hemicellulose was still retained in the pretreated solid at the evaluated pretreatment conditions, hydrolysis of both the pretreated solid and spent liquor are necessary to obtain most of xylose from OPEFB. Pretreatment using 5% ammonia gave the highest xylose yield; however, great amount of acid would be needed for pH adjustment for the following enzymatic hydrolysis process and thereby autohydrolysis was preferred. The optimum yield was obtained from autohydrolysis at 1.5 barg/127.9 °C for 60 min, which gave xylose yield of 0.085 g xylose/g OPEFB (or 39.1% of hemicellulose). The obtained hydrolysate could be directly used as substrate for fermentation.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Autohydrolysis,Moderate condition,Oil palm empty fruit bunch,Oil palm empty fruit bunch (OPEFB),Pre-Treatment,Pretreatment conditions,Pretreatment methods,Process performance[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Acetic acid,Ammonia,Autohydrolysis,Moderate condition,Oil palm empty fruit bunch,Pretreatment,Xylose[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]Funding information This research was funded by the Indonesian Oil Palm Plantation Fund Management Agency grant entitled BEngineering of Oil Palm Empty Fruit Bunches Hydrolysis for the Production of Green Xylitol.^[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1007/s13399-017-0299-x[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]