Effect of Preservatives Combined with Different Silicon Window Areas on the Storage Quality of Broccoli in Air Conditioned Packaging
To further verify the results of the screening research on key parameters of silicon window modified atmosphere for broccoli in the early stage,and to expect to obtain a better storage method on which preservation agent combined with silicon window modified atmosphere for broccoli,this study used 60 mg/L chlorine dioxide solution and distilled water soaking and cleaning,compared to no treatment,then combined with silicon window modified atmosphere packaging bags with a silicon window area of 6 and 8 cm2 at 2℃to store broccoli.Through the determination of nutritional indicators such as chlorophyll,ascorbic acid(Vc),total phenols,total anthocyanins,and thioglucoside content,this study investigated the effects of various treatments on the quality of broccoli during 25 day storage period.The results showed that compared to a single silicon window modified atmosphere packaging,the combination of fresh-keeping agent or distilled water cleaning treatment with silicon window modified atmosphere had a better fresh-keeping effect.The combination of 60 mg/L chlorine dioxide solution treatment with silicon window modified atmosphere was the best.At a storage temperature of 2℃,under the same treatment method,the preservation effect of broccoli packaged in a silicon window bag with a silicon window area of 8 cm2 was better than that of a silicon window bag with a silicon window area of 6 cm2.The storage quality of broccoli packaged with chlorine dioxide preservative combined with a silicon window bag with a silicon window area of 8 cm2 was the best,and all nutritional indicators are generally higher than other treatment groups during the 25-day storage period.
BroccoliPreservativeModified atmosphere packaging with silicon gum film windowRetain freshnessStorage quality