Rokanın mikrobiyal yükünün azaltılmasında sodyum hipoklorid, elektrolize yükseltgen suyun (EYS) ve hidrojen peroksitin kullanımı ve bu uygulamaların ürün kalitesine etkileri
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Tarih
2017
Yazarlar
Dergi Başlığı
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Cilt Başlığı
Yayıncı
Ege Üniversitesi, Fen Bilimleri Enstitüsü
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmada Türkiye'de yetişen ve sıkça tüketilen rokanın mikrobiyal yükünün azalmasına ve kalite özellikleri üzerine farklı dezenfektanların etkisi araştırılmıştır. Bu amaçla, yıkama işlemlerinde çeşme suyu ve üç farklı serbest klor konsantarsyonu (25, 50 ve 75 ppm) içeren sodyum hipoklorit ve EYS çözeltileri ile aynı konsantrasonlarda (25, 50 ve 75 ppm) hidrojen peroksit ile yıkama işlemleri uygulanmıştır. Her dört işlemde de (çeşme suyu, sodyum hipoklorid, EYS ve hidrojen peroksit) üç farklı zaman diliminde (1, 3 ve 5 dk) yıkama işlemi uygulanmıştır. Çalışma sonucunda, çeşme suyu ile yıkama işleminde yıkama süresi uzadıkça mikrobiyal yükteki azalma artmıştır ve bu artış istatistiksel olarak önemli bulunmuştur. Klorlu su, EYS ve hidrojen peroksit ile her üç konsantrasyondada yıkama süresi arttıkça mikrobiyal yükteki azalma artmıştır ancak bu değişim istatistiksel olarak önemli bulunmamıştır. Her üç dezenfektan dikkate alındığında, uygulanan konsantrasyonlardan 25 ve 50 ppm'lik çözeltilerin mikrobiyal yüke etkisi önemsizken, 75 ppm diğer iki konsantrasyona göre daha etkilidir ve bu etki istatistiksel olarak önemli bulunmuştur. Yıkama çözeltileri içerisinde sodyum hipoklorid ve EYS ile yıkama işlemleri arasındaki fark istatistiksel olarak önemli bulunmamıştır. Buna rağmen EYS ile yıkama işleminde toplam aerobik bakteri sayısında azalma, dolayısıyla etkinin arttığı görülmektedir. Hidrojen peroksit ile yıkama işlemi en etkili çözelti olarak belirlenmiştir (p˂0.05).
In this study, the effect of different disinfectants on quality characteristics and reduction of microbial load of the roquette which is grown in Turkey and consumed frequently were investigated. For this purpose, tap water and three different free chlorine concentrations including Sodium hypochlorite and EOW solutions (25, 50 and 75 ppm) at the same concentrations (25, 50 and 75 ppm) with hydrogen peroxide the washing process was performed. Washing process in all four processes (Tap water, sodium hypochlorite, EOW and hydrogen peroxide) was applied in three different time (1, 3 and 5 minute). As a result of this study, the microbial load was decreased when washing time was increased in washing with tap water treatment. This increase was statistically significant. The decrease in microbial load was increased as the washing time increased at all three concentrations used for chlorine water, EOW and hydrogen peroxide, but this change was not significant statistically. Taking all three disinfectants into account, the effect of 25 and 50 ppm solutions on microbial load was negligible, 75 ppm was more effective than the other two concentrations, and this effect was statistically significant. The difference between sodium hypochlorite and EOW was not statistically significant in the wash solutions. However, it is observed that decreases in the total number of aerobic bacteria in the washing process with EOW and therefore the efficiency increases. Washing with hydrogen peroxide was determined to be the most effective solution.
In this study, the effect of different disinfectants on quality characteristics and reduction of microbial load of the roquette which is grown in Turkey and consumed frequently were investigated. For this purpose, tap water and three different free chlorine concentrations including Sodium hypochlorite and EOW solutions (25, 50 and 75 ppm) at the same concentrations (25, 50 and 75 ppm) with hydrogen peroxide the washing process was performed. Washing process in all four processes (Tap water, sodium hypochlorite, EOW and hydrogen peroxide) was applied in three different time (1, 3 and 5 minute). As a result of this study, the microbial load was decreased when washing time was increased in washing with tap water treatment. This increase was statistically significant. The decrease in microbial load was increased as the washing time increased at all three concentrations used for chlorine water, EOW and hydrogen peroxide, but this change was not significant statistically. Taking all three disinfectants into account, the effect of 25 and 50 ppm solutions on microbial load was negligible, 75 ppm was more effective than the other two concentrations, and this effect was statistically significant. The difference between sodium hypochlorite and EOW was not statistically significant in the wash solutions. However, it is observed that decreases in the total number of aerobic bacteria in the washing process with EOW and therefore the efficiency increases. Washing with hydrogen peroxide was determined to be the most effective solution.
Açıklama
Anahtar Kelimeler
Elektrolize Yükseltgen Su, Hidrojen Peroksit, Sodyum Hipoklorid, Roka Ve Toplam Aerobik Bakteri, Electrolyzed Oxidizing Water, Hydrogen Peroxide, Sodium Hypochlorite, Roquette And Total Aerobic Bacteria
