تلخیص
Anthracnose disease due to a latent infection of Colletotrichum musae has seriously
impacted on bananas decay. This case caused a serious number of economic losses
facing in both local and international trades. To overcome this problem, hot water
treatment and also chitosan coating have been developed in minimizing this fungal
infection during postharvest period. In this research, a number of green mature local
premium banana called bananas var. Mas kirana were inserted into hot water at 44, 46
and 48oC subsequently for 5, 10, 15 and 20 minutes. Another treatment also carried on
through a wide range of chitosan solutions from 2.5, 5 and 10 g/L soaked for 2 and 4
minutes. As a single treatment, hot water soaking at 48oC for 20 minutes gave the best
effect on handling the fruit maturity until 18 days of storage. This level treatment could
also suppress the lesion only 2.4 cm and also minimized the severe fruit-damaging level
until 22 days of observation. Whereas, chitosan coating through dipping in 5 g/L
chitosan solution for 2 minutes gave the best result on controlling latent fungal infection
in-vitro. However, this treatment only minimized fruit-damage in medium level until
16 days of storage. Furthermore, the combination treatment of hot water treatment at
48oC for 20 minutes followed by chitosan coating at 5 g/L through dipping in 2 minutes
gave the most proper result in terms of handling of fruit ripening until 23 days of
storage. Another result proved this combination treatment significantly eliminated the
length of lesion up to 0.16 cm and suppressed the fruit-damage in mild level. However,
there were no significant differences among the yellow mature of untreated and
combination-treated bananas observed from tests results of color characteristics, pulp
strength and total dissolved solid content.
Hendra Adi , Leny Panjaitan, Widodo, Dondy Anggono. (2018) The role of hot water treatment and chitosan coating in controlling a latent infection of Colletotrichum musae on banana var. Mas kirana, Asian Journal of Agriculture and Biology, Volume 6, Issue 4.
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