Investigating the influence of temperature on ethylene removal kinetics for commercial scavenger

Nowadays fruit package comes with an ethylene scavenger sachet based on potassium permanganate (KMnO₄) which possesses the ability to remove the ethylene gas in the package which results in less ethylene accumulation and delays in ripening.
The effect of temperature on the removal of ethylene using scavengers inside fruit packages or storage is limited in the literature.
Hence this study aimed to investigate the dependency of potassium permanganate-based commercial ethylene scavenger (Ryan^®) at four different temperatures (2, 10, 21, and 30°C) under 100% relative humidity.
The rate constant of pseudo-first-order kinetics ranged from 0.35±0.05 to 0.81±0.04 h^‑1, and it varied significantly with a temperature range from 10 to 21°C. At other temperature ranges (2-10°C and 21-30°C), the rate constant did not vary significantly.
The Arrhenius relationship between rate constant and temperature showed the goodness of fit (R²) of 0.86 and activation energy of 22.87 kJ mol^‑1. This study would be valuable in determining the ethylene accumulation in CA storage with ethylene scavenger.

VII International Symposium on Applications of Modelling as an Innovative Technology in the Horticultural Supply Chain – Model-IT 2023

A.D. Sonawane, C. Weltzien, P.V. Mahajan

climacteric fruit, ethylene scavenger, rate constant, kinetics, activation energy

https://doi.org/10.17660/ActaHortic.2023.1382.16