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Effect of Chitosan-Lemon Essential Oil Coatings to Prolong the Quality of<br />

Cucumber (Cucumis sativus L)<br />

Noor Shuhada Omar Arbain<br />

Supervisor: Dr. Ramisah Mohd Shah<br />

Bachelor of Science Agrotechnology (Postharvest Technology)<br />

School of Food Science and Technology<br />

This study was designed to determine the effect of chitosan-lemon oil coatings on<br />

postharvest quality of cucumber. Four different combination of chitosan and lemon<br />

essential oil solution were tested (0.5% chitosan + 0.5% essential oil, 0.5% chitosan<br />

+ 1.0% essential oil, 1.0% chitosan + 0.5% essential oil, 1.0% chitosan + 1.0%<br />

essential oil). The treated cucumbers were stored at ambient temperature for 14<br />

days. The effectiveness of the treatment in prolonging the quality was evaluated by<br />

determining weight loss, color, firmness, total soluble solids, pH value and titratable<br />

acidity. Chitosan-lemon essential oil coatings did not show a significant effect<br />

(p>0.05) in terms of weight loss, total soluble solids, pH and acidity of the cucumber.<br />

However, chitosan and essential oil coatings maintained higher hardness and delaying<br />

color changes of the coated cucumbers. This study suggests that chitosan-lemon oil<br />

coating have potential to preserve the physical characteristics of cucumber at ambient<br />

temperature.<br />

1044 | UMT UNDERGRADUATE RESEARCH DAY 2018

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