Microbial conversion of food industrial waste into environmental friendly bioplastics

Pao Yue-kong Library Electronic Theses Database

Microbial conversion of food industrial waste into environmental friendly bioplastics

 

Author: Szeto, Yim-tong Savio
Title: Microbial conversion of food industrial waste into environmental friendly bioplastics
Degree: M.Sc.
Year: 1997
Subject: Factory and trade waste
Recycling (Waste, etc.)
Hong Kong Polytechnic University -- Dissertations
Department: Multi-disciplinary Studies
Pages: ix, 80 leaves : ill. ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1398766
URI: http://theses.lib.polyu.edu.hk/handle/200/2649
Abstract: In this study, Alcaligenes latus DSM 1122, 1123, 1124 from Tsinghua University, Beijing and bacteria from activated sludge were utilised to produce polyhydroxyalkanoates (PHA). In the first part of the study, a mixed culture in activated sludge was used to produce PHA by Sequencing Batch Reactor. The nutrient for bacteria growth stage was hydrolysed soya waste. Glucose was supplied as a carbon source for the PHA accumulation stage. PHA polymer yield was 0.20 g which could be obtained from 1 kg soya waste and 176 g glucose. The PHB: PHV copolymer ratio of the polymer was 79:21 (w/w). The second part of study was conducted by experimenting different conditions of treatment on the malt refuse as the nutrient, and usage of A. latus DSM 1122, 1123, 1124 and bacteria isolated from sludge to produce PHA. Shaking flask method was employed. The result showed that 9 mg and 25 mg polymer could be produced from 100 g malt waste by DSM 1122 and 1124 respectively. And both of the bacteria produced PHB homopolymer from malt extract. Identification and the antibiotic sensitivity test of the bacteria isolated from activated sludge were carried out and this bioplastic productive bacteria was known as Klebsiella pneumoniae.

Files in this item

Files Size Format
b13987665.pdf 6.392Mb PDF
Copyright Undertaking
As a bona fide Library user, I declare that:
  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
  3. I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.

     

Quick Search

Browse

More Information