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San, Horman.. Sodium metabisulfite incorporated thermoplastic starch and Poly(Butylene adipate-Co-Terephthalate) blend films as active biodegradable packaging to reduce microbial growth and darkening in dried meat and fruits. Master's Degree(Packaging Technology). Kasetsart University. Office of the University Library. : Kasetsart University, 2022.
Sodium metabisulfite incorporated thermoplastic starch and Poly(Butylene adipate-Co-Terephthalate) blend films as active biodegradable packaging to reduce microbial growth and darkening in dried meat and fruits
Name: San, Horman.
Classification :.LCCS: TS195.2
LCSH:
Active food packaging.
LCSH:
Enzymatic browning.
LCSH:
Thermoplastics.
LCSH:
Polybutenes.
LCSH:
Dried meat
LCSH:
Dried foods.
Abstract:
Microbial growth and browning cause quality loss in intermediate moisture foods. This research developed and characterized novel active films to prevent microbial growth and brown discoloration in dried meat and fruits. Biodegradable films based on thermoplastic starch (TPS) and poly(butylene adipate-co-terephthalate) (PBAT) blends incorporating sodium metabisulfite (SM) (up to 7% w/w) were developed using blown film extrusion. SM interacted with the TPS phase, resulting in O-H stretching vibration and hydrogen bonding which modified the thermal degradation behavior and improved the smoothness of the structures at the microscale. Excessive SM formed crystal particles at ≥ 3% that were detected by X-ray diffraction. Addition of SM decreased the mechanical properties but film clarity and hydrophobicity improved, with enhanced water vapor barrier properties. The SM blend film showed significant antibacterial activity against E. coli, B. cereus, and S. aureus. TPS/PBAT/SM active films effectively prevented mold growth and darkening in packaged salami for at least 16 days, while the non-SM blend film was only effective for 6 days at room conditions. Active films with SM loading, particularly at > 3% prevented browning reaction and darkening in dried bananas and longans at both ambient (60% RH) and 85% RH stored at room temperature. SM addition improved packaging characteristics and functional efficiency, resulting in higher dried fruit and meat product quality. TPS/PBAT/SM composite films showed promise as sustainable active packaging and an alternative technique to sulfite treatment for dried fruit and meat.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Role:
Thesis Advisor
Name: Pattarin Leelaphiwat
Role:
Thesis Co-Advisor
Created:
2022
Modified:
2025-06-24
Issued:
2025-06-24
วิทยานิพนธ์/Thesis
วิทยานิพนธ์/Thesis
application/pdf
URL: https://kasetsart.idm.oclc.org/login?url=https://www.lib.ku.ac.th/KUthesis/2565/horman-san-all.pdf
CallNumber:
TS195.2.S26
eng
DegreeName: Master of Science
Level: Master's Degree
Descipline: Packaging Technology
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.050351 วินาที
San, Horman.
| Title | Contributor | Type |
|---|---|---|
| Sodium metabisulfite incorporated thermoplastic starch and Poly(Butylene adipate-Co-Terephthalate) blend films as active biodegradable packaging to reduce microbial growth and darkening in dried meat and fruits
มหาวิทยาลัยเกษตรศาสตร์ San, Horman. | Nathdanai Harnkarnsujarit Pattarin Leelaphiwat | วิทยานิพนธ์/Thesis |
Nathdanai Harnkarnsujarit
Pattarin Leelaphiwat