MARC details
| 000 -LEADER |
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| fixed length control field |
02884nam a2200253 a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
vtls000067956 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
KUKTEM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251114204521.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
121227t2012 my a f m 000 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0004443(Local) |
| 039 #9 - LEVEL OF BIBLIOGRAPHIC CONTROL AND CODING DETAIL [OBSOLETE] |
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| Level of rules in bibliographic description |
201905161539 |
| Level of effort used to assign nonsubject heading access points |
rohana |
| -- |
201212270929 |
| -- |
Fida |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
UMP |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
TP248.25.N35 A28 2012 rs Bc. |
| 100 0# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Abu Hassan Mohd Nazir |
| 245 10 - TITLE STATEMENT |
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| Title |
Optimization of bacterial cellulose production in apple juice medium by using response surface methodology (RSM) / |
| Statement of responsibility, etc. |
Abu Hassan Mohd Nazir |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
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| Place of publication, distribution, etc. |
Kuantan, Pahang : |
| Name of publisher, distributor, etc. |
UMP, |
| Date of publication, distribution, etc. |
2012 |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xiv, 48 p. : |
| Other physical details |
ill. (some col.) ; |
| Dimensions |
30 cm. + |
| Accompanying material |
1 CD-ROM |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Project paper (Bachelor of Chemical Engineering (Biotechnology) -- Universiti Malaysia Pahang - 2012 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Bibliography : p. 43-46 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Acetobacter xylinum is a type of acetic acid producing bacteria that can synthesis bacterial cellulose from carbohydrates. Bacterial cellulose that produced has high purity, high water holding capacity, good mechanical strength, elasticity, high crystallinity and high porosity compare to plant cellulose. This research was using apple juice as the high potential carbon sources to replace the pure carbon sources as the substrate for the synthesis of bacterial cellulose. The objective of this study was to optimize bacterial cellulose production in apple juice medium by using Response Surface Methodology (RSM). The research will be conducted by using 5 samples with difference temperature (28ºC, 29ºC, 30ºC, 31ºC and 32ºC) , 5 sample with difference in pH (4, 5, 6 ,7 and 8) and 5 sample with different medium concentration (60 %, 70%, 80%,90% and 100%). Each sample contains 100mL of medium in 250mL conical flask and incubated in incubator for 5 days. The bacterial cellulose film produced by Acetobacter Xylinum was treated with 1% Natrium Hydroxide (NaOH) for 1 day and then washed with Deionized water to neutralize the bacterial cellulose. The result showed that the medium concentration, pH and temperature of cultivation were affected the production yield of bacterial cellulose. By using response surface methodology (RSM), the optimum condition for bacterial cellulose production was 95% (v/v) for medium concentration, pH 5.95 and cultivation temperature at 30.3ºC. The film then was analyzed by using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscope (SEM). By using FTIR the hydrogen bonds (-OH) of bacterial cellulose was determined while by using SEM the interwoven strands, ribbon-like (microfibrils) of bacterial cellulose structure was observed. Thus, the optimum conditions for bacterial cellulose production can be determined by using RSM. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Polymeric composites |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Biopolymer |