rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Development of acid-base-enzyme pretreatment and hydrolysis processes for enhanced bioethanol production from palm oil mill effluent
  name:
    name part: Deb, Nibedita
    role:
      role term: creator
    role:
      role term: author
  name:
    name part: International Islamic University Malaysia
    name part: Department of Biotechnology Engineering
  genre: Theses, IIUM local
  origin info:
    place:
      place term: my
    date issued: 2017
  language:
    language term: eng
  physical description:
    extent: xvii, 150 leaves : illustrations ; 30cm.
  abstract: Palm oil mill effluent (POME) is one of the main agroindustrial wastewater in Malaysia. Highly polluting palm oil mill effluent (POME) is a serious threat to the environment. The methods being used to treat POME are inefficient and complex either in terms of cost or in terms of environmental preservation. The purpose of this study was to develop an effective method to enhance the bioethanol production that uses acid-base-enzyme pretreatment and hydrolysis of POME by locally produced cellulase enzyme. Numerous experiments such as characterization of POME, acid-base-enzyme pretreatment, development of the enzymatic hydrolysis conditions for reducing sugar production, optimization of media and process parameters, and evaluation of bioethanol through liquid state fermentation of hydrolysate of POME by using Saccharomyces cerevisiae were carried out to achieve the objectives of the study. Pretreatment and enzymatic hydrolysis were successfully developed for maximum production of reducing sugar. Statistical analysis in the form of one factor at a time (OFAT) and face centered central composite design (FCCCD) were employed to obtain the optimum media and process conditions for maximum reducing sugar and bioethanol production. Through OFAT as the pretreatment process, the concentration of diluted H2SO4 and its dose, agitation, time, total suspended solids (%TSS), concentration of NaOH, and initial enzyme dose were found to have the most significant contribution toward reducing sugar production in the POME based medium. The OFAT results showed that the highest reducing sugar yield, 23.47 mg/ml of POME was achieved by enzymatic hydrolysis with 5% (w/v) of pretreated POME, pH of 6, 150 rpm of agitation and 80U of cellulase enzyme with the stock enzyme activity of 40U/ml CMCase after 18 hours of incubation. Based on OFAT results obtained, optimization of two factors such as substrate concentration and enzyme loading were carried out by applying the face centered central composi…
  note: by Nibedita Deb
  note: Thesis (MSBTE)--International Islamic University Malaysia, 2017.
  note: Includes bibliographical references (leaves 115-136).
  subject:
    geographic code: a-my---
  classification: TD899.O54
  identifier: http://studentrepo.iium.edu.my/handle/123456789/4587
  record info:
    record content source: UIAM
    record creation date: 170818
    language of cataloging:
      language term: eng