Siti Khoiriyatul Ummah (2020) Efektivitas Penggunaan Ozon Untuk Menghambat Kerusakan Sel Dan Kadar Klorofil Pada Selada Keriting (Lactuca sativa L). Skripsi thesis, UNIVERSITAS AIRLANGGA.

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Abstract

Ozon has been utilized widely for sterilization application, for example to keep the freshness both fruits and veggies yet keep them safe too for human comsumption and chemical-free. This work aims to investigate the effect of ozon exposure through the air and water on organoleptic and clorophyll level of curly lettuce (Lactuca sativa L). The given exposure has been done with various ozon consentration correspond with increasing exposure time, namely 0.0147 mg/L (120 second exposure time), 0.0294 mg/L (240 second exposure time), 0.0371 mg/L (360 second exposure time) and 0.0479 mg/L (480 second exposure time). The curly lettuce (Lactuca sativa L) was originally taken from veggies farmland located in Sumberojo village, Batu sub-district, Batu city East Java, Indonesia. This project was carried out by using Completed Random Contrivance (CRC) technique. The observation was focused on organoleptic and mass loss of curly lettuce (Lactuca sativa L) and it was carried out on every 8 hours for two days straight non-stop. The clorophyll level measurement was employed by using UV-Vis spectrophotometer after two days from last observation. Organoleptic showed that ozon exposure technique through water mediator with ozon consentration 0.0147 mg/L gave the best result to detain organoleptic damages of curly lettuce (Lactuca sativa L). The clorophyll level was analyzed by employing Statistical Package for The Social Sciences (SPSS) with factoral technique (Two Way Anova). Therefore, all the analysis result convinced that this ozon exposure technique with water mediator gave the best result compare to air mediator, in term of clorophyll level preserving of Lactuca sativa L. This technique is very effective to maintain the quality and curly lettuce (Lactuca sativa L) freshness.

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