Antifungal activity of nanoporous ZNO/AL photocatalytic film fabricated via electrophoretic deposition against fusarium sp., causal organism of banana crown rot

Date

4-2013

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Katherine M. Calamba

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

ZnO/Al film was fabricated to determine its antifungal activity against Fusarium sp., the casual fungi of crown rot disease of banana. Films were fabricated using electrophoretic deposition. Applied voltage, deposition time and annealing temperature were optimized to obtain a uniform, crack free, and nanoporous film with high surface area. The film that was electrodeposited for 7 minutes using an applied voltage of 180V has the most desirable surface. The effect of heat on the morphology of the films was investigated. The film annealed at 300 degree celcius has an average particle size of 0.185um, pore size of 0.147um and showed good adherence to the Al substrate. This film was used to investigate the photocatalytic activity of ZnO against Fusarium sp. When the ZnO/Al film was exposed to UV, it caused significant delay in the time of infection of the fungi to the banana and decrease in thickness of mycelial growth. Only surface rot on the crown of banana was observed when treated with the photocayalytic ZnO/Al film. The findings indicate the viability of ZnO/Al film for treating fungi in banana that cause crown rot disease.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2013 P51 /A46

Document Type

Thesis

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