Application Nano Zeolite-Molybdate for Avocado Ripeness Indicator

V. J. Putri, E. Warsiki, K. Syamsu, A. Iskandar

Research output: Contribution to journalConference articlepeer-review

10 Citations (Scopus)


Zeolite is aluminosilicate containing pores and cavities that are usually used as absorbent materials. Nano zeolite - molybdate was used as a ripeness indicator of avocado. The ripeness indicator was made by dissolving molybdate in hydrogen peroxide (H2O2) and mixed with nano zeolite. This study was aimed to determine the colour change of indicator, and the relationship between the changing colour of indicator and the ripening of avocado. The ripeness indicator was prepared used activated nano zeolite with HCl 1 N for 24 h, then mixed with 4 mL peroxomolybdate. Nano zeolite-molybdate tablets was packed using 0,04 mm thick of LDPE plastic, and it was inserted inside avocado packaging. The ripeness indicator would identified by the ethylene production of avocados, and resulted changing the indicator colour from yellow to blue. The yellow colour would represent unripe avocado, but the blue colour would represent ripe avocados. The colour changing was related with the decrease of avocado quality during 10 days storage with the rate of weight loss 0.0113%, the rate of sugar level 0.7182% and the rate of avocado hardness 2.1132% by day.

Original languageEnglish
Article number012063
JournalIOP Conference Series: Earth and Environmental Science
Issue number1
Publication statusPublished - 11 Nov 2019
Externally publishedYes
Event6th International Conference on Sustainable Agriculture, Food and Energy: Inclusive Agri-Food Energy Production for Community Empowerment in a Changing Climate, SAFE 2018 - Manila, Philippines
Duration: 18 Oct 201821 Oct 2018


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