AI SearchAntimicrobial activity of chitosan coating against food pathogens (Record no. 6275)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04277nas|a2200397 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162800.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 030418s2002 th u m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b1188079x |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. BP-02-10 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Huynh Nguyen Bao Loan |
| 245 10 - TITLE STATEMENT | |
| Title | Antimicrobial activity of chitosan coating against food pathogens |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2002 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 105 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. BP-02-10 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M. Sc.) - Asian Institute of Technology, 2002 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Effect of chitosan on antimicrobial activity has been studied with four types of chitosans at 0.1 % (w/v) concentration. Chitosan HD (96% DD; 745,357 Dalton), LD (65% DD; 760,366 Dalton), HM (95% DD; 850,000 Dalton) and LM (96%; 250,000 Dalton) were chosen for the analysis. Inhibition and inactivation of three common pathogenic bacteria (Escherichia coli, Staphylococcus aureus and Salmonella weltevreden), which contaminated fish ball, were studied with chitosan treament. The in vitro study showed that the inhibition effect of chitosan was significant for the growth of pathogenic bacteria, especially for S. aureus. On the infected fish balls, the bacterial growth curves of control samples were significantly different as compared with other chitosan treated samples. The dependence of DD and MW on the antimicrobial activity varied with the strains of bacteria. E. coli was more sensitive with the change of DD, Salmonella weltevreden with MW and S. aureus with either DD or MW. Dipping in chitosan solutions can reduce microbial spoilage to extend the shelf life . Moreover, the sensory quality of the products also enhanced. During prolong storage (of unsterilized samples), when comparing the coating and mixing methods, the chitosan mixed fish ball significantly effect on growth inhibition of organism. It showed lower value of cell count number. With sterilized samples, coating fish balls with HD or LM chitosan was chosen on the basis of low number of organisms and sensory evaluation. The effect of chitosan as preservative coating on postharvest storage of tomato has been investigated in the second part of study. Two fungi that cause the sour rot and soft rot diseases on fresh tomato were selected for analysis. The in vitro experiment described Geotrichum candidum was more resistant to chitosan than Rhizopus stolonifer. However, when chitosan was applied as a coating for tomato, the opposite result was observed. Coating of tomato with chitosan delayed the ripening process as performed in reduction of weight loss and color change. In addition, chitosan coated tomatoes were firmer the control samples after prolonged storage. Chitosan was found to reduce infection on tomato by these fungi. The influence of different MW chitosans was clear as compared with that of DD on fungal radial growth, color development, and the firmness. Low MW and high DD chitosans were more effective than high MW and low DD for control the infection of Rhizopus stolon(fer and Geotrichum candidum on keeping quality of tomato. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Anti-infective agents |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Chitosan |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Rakshit, Sudip Kumar, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Jindal, Vinod Kumar, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Athapol Noomhorm, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | The Royal Netherlands Government, |
| Relator term | Scholarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. BP-02-10 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B07383">http://203.159.5.9/ait-thesis/detail.php?q=B07383</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b1188079x |
| b | mnait |
| c | u |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240403 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 030418 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | u |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 22-AIT Thesis (Replacement) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120682967 |
| CREATED | CREATED : 2003-04-18 |
| RECORD Id | RECORD # : i12322787 |
| LPATRON | LPATRON : 1022283 |
| LCHKIN | LCHKIN : 2011-12-06 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 9 |
| -- | TOT RENEW : 11 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120350656 |
| CREATED | CREATED : 2016-10-06 |
| RECORD Id | RECORD # : i13030103 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no. BP-02-10 | 30050120682967 | 17/08/2026 | 3 | 17/08/2026 | 22-AIT Thesis (Replacement) | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no. BP-02-10 | 30050120350656 | 17/08/2026 | 17/08/2026 | 40-Archives |