Applications of 1-methylcyclopropene and chitosan lengthened fruit shelf-life and maintained fruit qualities of ‘Mutiara’ guava fruits

‘Mutiara’ guava fruit is one of two leading guava cultivars sold in Indonesian markets. Its thin skin and climacteric-typed respiration shorten its shelf-life due to high transpiration and respiration rates. Eventhough 2.5% chitosan was proven to lengthen its shelf-life, the effect of ethylene trapped under chitosan coating needs to be blocked in order to increase its coating affectivity.