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Improving bioavailability of fruit wastes using organic acid: An exploratory study of biomass pretreatment for fermentation

Title
Improving bioavailability of fruit wastes using organic acid: An exploratory study of biomass pretreatment for fermentation
Author
전병훈
Keywords
Biomass; Fruit wastes; Pretreatment; Acetic acid; Bioavailability; Bioenergy
Issue Date
2016-11
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ENERGY CONVERSION AND MANAGEMENT, v. 127, Page. 256-264
Abstract
Maximizing the bioavailability of fermentable biomass components is a key challenge in biomass pretreatment due to the loss of sugars during conventional pretreatment approaches. Pretreatment of fruit peels and wastes (FPWs) with dilute acetic acid assisted in maximizing sugar recovery. Optimized conditions (0.2 M acetic acid, 100 degrees C, 1 h) at 10% substrate loading resulted in enhanced sugar recovery from banana peels (99.9%), pineapple wastes (99.1%), grape pomace (98.8%), and orange peels (97.9%). These high sugar recoveries retained the high C/N ratios (41-47) suitable for effective bioenergy production through the fermentation of these pretreated biomasses. Scanning electron microscopy (SEM) indicated considerable disruption of biomass structural integrity during acetic acid treatment, enhancing the surface area available for better microbial attachment. Fourier transform infrared spectroscopy (FTIR) showed that the acetic acid pretreatment yielded only minor changes to the functional groups in the biomasses, strongly suggesting minimal loss of fermentable sugars. Thus, acetic acid pretreatment aids in enhancing the bioavailability of fermentable sugars from these FPWs biomass, enabling improvements in bioenergy production. (C) 2016 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0196890416307944http://repository.hanyang.ac.kr/handle/20.500.11754/101348
ISSN
0196-8904; 1879-2227
DOI
10.1016/j.enconman.2016.09.016
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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