Effect of exposure time, cell concentration and culture age on the microbial adhesion of staphylococcus aureus and saccharomyces cerevisiae on the glass surface / (Record no. 5113)

MARC details
000 -LEADER
fixed length control field 03527ntm a2200265 a 4500
001 - CONTROL NUMBER
control field vtls000084643
003 - CONTROL NUMBER IDENTIFIER
control field KUKTEM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20251117113230.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 141223t2014 my a f m 000 0 eng d
020 ## - INTERNATIONAL STANDARD BOOK NUMBER
International Standard Book Number THE0002225(Local)
039 #9 - LEVEL OF BIBLIOGRAPHIC CONTROL AND CODING DETAIL [OBSOLETE]
Level of rules in bibliographic description 201905241036
Level of effort used to assign nonsubject heading access points shamsul
Level of effort used to assign subject headings 201712061007
Level of effort used to assign classification huda
-- 201412231532
-- fawwaz
040 ## - CATALOGING SOURCE
Original cataloging agency UMP
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) QK623.S23 R38 2014 r Bc.
100 0# - MAIN ENTRY--PERSONAL NAME
Personal name Raudhah Ahmad Shupi
245 10 - TITLE STATEMENT
Title Effect of exposure time, cell concentration and culture age on the microbial adhesion of staphylococcus aureus and saccharomyces cerevisiae on the glass surface /
Statement of responsibility, etc. Raudhah Ahmad Shupi
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. Kuantan, Pahang :
Name of publisher, distributor, etc. UMP,
Date of publication, distribution, etc. 2014
300 ## - PHYSICAL DESCRIPTION
Extent xiv, 41 p. :
Other physical details ill. ;
Dimensions 30 cm. +
Accompanying material 1 CD-ROM
500 ## - GENERAL NOTE
General note Faculty of Chemical & Natural Resources Engineering
502 ## - DISSERTATION NOTE
Dissertation note Project paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang – 2014
504 ## - BIBLIOGRAPHY, ETC. NOTE
Bibliography, etc. note Bibliography : p. 38-41
520 3# - SUMMARY, ETC.
Summary, etc. This paper reveals the behaviour of the adhesion of Staphylococcus aureus (S. aureus) and Saccharomyces cerevisiae (S. cerevisiae) on the glass surface with respect to the exposure time, the cell concentration and culture age. Therefore, this study was carried out to investigate the mechanism of microbial adhesion based on the exposure time, cell concentration and culture age, so that further measures can be taken either to influence or to prevent the adhesion of microorganism. In order to investigate effect of exposure time on the adhesion process, the experiments were carried out for 24 hours and sampling was done at 4 h, 8 h, 12 h and 24 h of intervals. At each sampling time, glass slide was examined under the light microscope for determination of the numbers of cell attached per square area. Besides that, the absorbance and the colony forming unit (CFU) were also measured. Based on the result obtained, the absorbance for S. cerevisiae and S. aureus decreased with increasing exposure time with lowest OD reading was obtained at 24 hours, 0.911 and 0.827, respectively indicating a reduction by 8.9 % and 17.3 % from initial reading of 1.000. The OD reduction of cell suspension occurred because the bacteria were attached on glass surfaces and the degree of attachment increased with exposure time. This reading was supported by analysis of the colony forming unit (CFU) count, where the initial reading of CFU for S. cerevisiae was at 16 x1011 CFU/ml and dropped to 10.3 x1011 CFU/ml at the end of the experiment whereas for S. aureus the CFU reading reduced from 317 x 1011 CFU/ml to 115.7 x 1011 CFU/ml. On the other hand, the effect of varying the cell concentration on the degree of adhesion was compared by using cell concentration at 0.8 and 1.2 of absorbance. The results showed that at 24 hour of exposure at 0.8 and 1.2 of absorbance gave higher degree of adhesion at higher cell concentration. The adhesion of S. aureus and S. cerevisiae on the glass increased by 2.45 % and 2.36 % respectively, at higher cell concentration. Lastly, both S. aureus and S. cerevisiae gave higher percentage of adhesion at stationary phase compared to exponential phase. The percentage of adhesion at exponential state were only 22.9 % and 10.9 % for S. aureus and S. cerevisiae respectively while at stationary state the adhesion were 31.8 % and 21.3 % for respectively
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Saccharomyces cerevisiae
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="http://ecollib.ump.edu.my/18301/">http://ecollib.ump.edu.my/18301/</a>
Public note Access in library only
Holdings
Withdrawn status Lost status Damaged status Not for loan Home library Current library Date acquired Total checkouts Full call number Barcode Date last seen Copy number Price effective from Koha item type
  Not lost   Not for loan UMPLIB GAMBANG UMPLIB GAMBANG 04/09/2019   QK623.S23 R38 2014 r Bc. 0000091685 04/09/2019 1 04/09/2019 Final Year Report
  Not lost   Not for loan UMPLIB GAMBANG UMPLIB GAMBANG 04/09/2019   CD 8609 | QK623.S23 R38 2014 r Bc. 0000091686 04/09/2019 1 04/09/2019 Final Year Report

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