Power model for enzymatic hydrolysis of coconut coir with chemical pretreatment

Name: Rudy Agustriyanto

Organization : University of Surabaya. Chemical Engineering Department

Email : rudy.agustriyanto@staff.ubaya.ac.id

Name: Akbarningrum Fatmawati

Organization : University of Surabaya. Chemical Engineering Department

keyword: Coconut coir

LCSH: Hydrolysis

LCSH: Glucose

LCSH: Sulfuric acid

Abstract: Coconut coir, that contains cellulose, hemicellulose, lignin, and some other extractive compounds, is classified as complex lignocellulosic material. Glucose from coconut coir can be used as fermentation substrate after enzymatic hydrolysis. Lignin content from the coconut coir will act as an inhibitor in this hydrolysis process. Therefore, a pretreatment process is needed to enhance the hydrolysis of cellulose. It has been found out that; pretreatment methods have significant impact on production efficiency of ethanol from biomass. Some of the most promising pretreatment methods require the application of chemicals such as alkali, acids, salts, oxidants, and solvents. In this research, chemical pretretment, i.e. dilute acid and alkaline pretreatment were done prior to enzymatic hydrolisis of coconut coir. Previous study observed that the the best pretreatment was at 1.5% sulfuric acid concentration and 100 ºC for dilute acid pretreatment2 and 11% NaOH and 100 ºC for alkaline pretreatment.3 Here, pretreatment was done at 121 ºC and 11% NaOH; and 105 ºC at 1.5% sulfuric acid. The objective of this research is to compare the glucose as a product of hydrolysis for these two types of chemical pretreatment. The kinetic parameters due to simple power model were then obtained.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2016

Modified: 2019-11-01

Issued: 2019-11-01

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BibliograpyCitation : In Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn and Chulalongkorn University Faculty of science. Pure and Applied Chemistry International Conference (PACCON 2016) (pp.314-317). Bangkok : Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn

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