Isolation of Natural Polymer from the By-Product of Hydrolysis of Oil Palm Empty Fruit Bunch for Bioethanol Production

2015 ◽  
Vol 353 (1) ◽  
pp. 220-224 ◽  
Author(s):  
Harry Budiman ◽  
Achmad Hanafi
Keyword(s):  
Oil Palm ◽  
Empty Fruit Bunch ◽  
Bioethanol Production ◽  
Natural Polymer ◽  
Hydrolysis Of

Effects of Various Pretreatment Variables on Hydrolysis of Lignocellulose to Produce Sugar in Bioethanol Production

2017 ◽  
Vol 890 ◽  
pp. 141-145 ◽  
Author(s):  
Akida Mulyaningtyas ◽  
Fitri Nur Kayati ◽  
Siti Syamsiah ◽  
Sarto ◽  
Wahyudi Budi Sediawan
Keyword(s):  
Particle Size ◽  
Oil Palm ◽  
Hot Water ◽  
Raw Material ◽  
Empty Fruit Bunch ◽  
Bioethanol Production ◽  
Pretreatment Condition ◽  
Several Variables ◽  
Hydrolysis Of

This research intends to explore the effect of pretreatment on lignoselulose to be used as raw material for bioethanol production. Pretreatment prepares lignocellulose compounds to be more easily hydrolyzed. Several variables were tested on oil palm empty fruit bunch (OPEFB) i.e. temperature, NaOH concentration, and particle size. According to the method of size reduction, there are two types of pretreatment which were milling and cutting. The first pretreatment type consisted of milling and screening resulting -+10-30, -30+40, -40+80, and-80 mesh. Each size fractions were then soaked in water at 90 °C for 2 hours. Meanwhile the second type consisted of cutting to 1 cm length followed by soaking in NaOH solutions for 2 hours. The operating temperatures at the second type were varied at 90 °C, 120 °C, 150 °C, 170 °C while the NaOH concentrations applied were 0%, 0.5%, 1%, 2%, 5%, 10%.The pretreated OPEFB was then hydrolyzed using cellulase produced by Aspergillusniger grown in situ. It was revealed that the relatively good pretreatment condition was milling to-80 mesh followed by soaking in hot water at 90 °C. It gave the highest produced sugar concentration at 15 g/L while other type resulted only 5.8 g/L.

Optimization studies on acid hydrolysis of oil palm empty fruit bunch fiber for production of xylose

2007 ◽  
Vol 98 (3) ◽  
pp. 554-559 ◽  
Author(s):  
S.H.A. Rahman ◽  
J.P. Choudhury ◽  
A.L. Ahmad ◽  
A.H. Kamaruddin
Keyword(s):  
Acid Hydrolysis ◽  
Oil Palm ◽  
Empty Fruit Bunch ◽  
Hydrolysis Of

scholarly journals Characterization of Residual Lignin Obtained by the Enzymatic Hydrolysis of Oil Palm Empty Fruit Bunch Pulps

BioResources ◽  
2016 ◽  
Vol 12 (1) ◽  
Author(s):  
Yin Ying H'ng ◽  
Akiko Nakagawa-Izumi ◽  
Cheu Peng Leh ◽  
Atanu Kumar Das ◽  
Hiroshi Ohi
Keyword(s):  
Enzymatic Hydrolysis ◽  
Oil Palm ◽  
Empty Fruit Bunch ◽  
Residual Lignin ◽  
Hydrolysis Of

scholarly journals Optimization of Two-Step Acid-Catalyzed Hydrolysis of Oil Palm Empty Fruit Bunch for High Sugar Concentration in Hydrolysate

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Dongxu Zhang ◽  
Yee Ling Ong ◽  
Zhi Li ◽  
Jin Chuan Wu
Keyword(s):  
Oil Palm ◽  
Total Sugar ◽  
Sugar Concentration ◽  
Empty Fruit Bunch ◽  
Solid Ratio ◽  
High Sugar ◽  
Total Sugar Concentration ◽  
Acid Catalyzed ◽  
Hydrolysis Of ◽  
Xylose Concentration

Getting high sugar concentrations in lignocellulosic biomass hydrolysate with reasonable yields of sugars is commercially attractive but very challenging. Two-step acid-catalyzed hydrolysis of oil palm empty fruit bunch (EFB) was conducted to get high sugar concentrations in the hydrolysate. The biphasic kinetic model was used to guide the optimization of the first step dilute acid-catalyzed hydrolysis of EFB. A total sugar concentration of 83.0 g/L with a xylose concentration of 69.5 g/L and a xylose yield of 84.0% was experimentally achieved, which is in well agreement with the model predictions under optimal conditions (3% H2SO4and 1.2% H3PO4, w/v, liquid to solid ratio 3 mL/g, 130°C, and 36 min). To further increase total sugar and xylose concentrations in hydrolysate, a second step hydrolysis was performed by adding fresh EFB to the hydrolysate at 130°C for 30 min, giving a total sugar concentration of 114.4 g/L with a xylose concentration of 93.5 g/L and a xylose yield of 56.5%. To the best of our knowledge, the total sugar and xylose concentrations are the highest among those ever reported for acid-catalyzed hydrolysis of lignocellulose.

A Kinetic Study on Acid Hydrolysis of Oil Palm Empty Fruit Bunch Fibers Using a Microwave Reactor System

2014 ◽  
Vol 28 (4) ◽  
pp. 2589-2597 ◽  
Author(s):  
Siew Xian Chin ◽  
Chin Hua Chia ◽  
Zhen Fang ◽  
Sarani Zakaria ◽  
Xing Kang Li ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Acid Hydrolysis ◽  
Oil Palm ◽  
Reactor System ◽  
Empty Fruit Bunch ◽  
Microwave Reactor ◽  
Hydrolysis Of
Sign in / Sign up

Export Citation Format

Share Document