Influence of Hot Water and 1-Methylcyclopropane Treatments on Air-Stored Quince Fruit

Nurdan Tuna Gunes,Ender Sinan Poyrazoğlu

doi:10.3390/agronomy12020458

Abstract

The commercial application potential of hot water treatments against 1-Methylcyclopropane (1-MCP) treatments for maintaining quality of fruit in quince (Cydonia oblonga Mill. cv. ‘Eşme’) during long-term regular air storage was investigated. The fruits were treated with either hot water at 50 ± 1 °C for 3 and 5 min or two different 1-MCP (SmartFreshSM) concentrations (300 ppb and 1000 ppb) at 12 °C for 20 h. Then, all fruits were stored at 0 ± 1 °C temperature, 85–90% relative humidity and regular air conditioning for 6 months. The efficacy of postharvest treatments in some fruit treats was monitored at monthly intervals. Postharvest treatments did not remarkably affect physiological features of fruits, such as ethylene production and respiration rate. Hot water treatments and 1000 ppb 1-MCP treatments positively maintained flesh color, acidity, malic acid content, 5–caffeoylquinic acid and vitamin C levels, and alleviated flesh firmness and sensory expert analysis scores. Overall, hot water treatment, a non-chemical treatment, had a potential for maintaining quality in quince fruit during long-term regular air storage at 0 ± 1 °C temperature and 85–90% relative humidity conditions for 6 months.

Highlights

Quince, Cydonia oblonga Mill., is one of the pome fruit species in the Rosaceae family.Its production around the world is much lower than other major species, such as apple and pear
One of the reasons for this increase is a rise in awareness among consumers of health-protective effects of the quince fruit
During the earlier storage period, including after treatments, an observation of lower ethylene production in 1-MCP-2 and HT-2-treated group in both years can show that quince fruit may regain its ripening capability by prolonging the storage period

Summary

Introduction

Cydonia oblonga Mill., is one of the pome fruit species in the Rosaceae family.Its production around the world is much lower than other major species, such as apple and pear. Cydonia oblonga Mill., is one of the pome fruit species in the Rosaceae family. Global quince production has increased 1.3 times in the last decade and reached approximately 666,000 tons in 2019 thanks to main producers, e.g., Türkiye (27.1%), China (18.8%), Uzbekistan (12.7%) and Islamic Republic of Iran (12.2%) [1]. One of the reasons for this increase is a rise in awareness among consumers of health-protective effects of the quince fruit. It possesses anti-inflammatory, antimicrobial, anti-cancer, antiallergic, antioxidant and antiulcerogenic effects on human health [2] because of healthpromoting compounds and natural antioxidants at remarkable levels in the fruit [3]. Fruit peel contains high levels of total amino acids and glycine, aspartic acid, asparagine and hydroxyproline [7], high levels of 3–caffeoylquinic acid and

Methods

Results

Conclusion