Effects of aminoethoxyvinylglycine (AVG) and 1-methylcyclopropene (1-MCP) treatments on fruit quality attributes in cold-stored‘Jonathan’apples

Abstract

Jonathan' apples are relatively small size which contributes to enhancing fruit consumption and gaining popularity. Thus, this study was carried out to evaluate the effects of AVG (aminoethoxyvinylglycine, ReTain®), sprayable 1-MCP (1-methylcyclopropene, Harvista TM ), and fumigation 1-MCP (SmartFresh TM ) applications on fruit quality attributes and storability in 'Jonathan' apple fruits during cold-stored. The Jonathan fruits were dipped with either ReTain (75 mg/L) or Harvista (125 mg/L) solutions for 5 min, or fumigated with SmartFresh (1 mg/L) for 18 hr before storage at 0±1℃ for 75 days. Flesh firmness and titratable acidity remained higher in all pre-treated apples than control ones during cold storage period. Flesh firmness was higher for apples treated with ReTain and SmartFresh than samples treated with Harvista, while soluble solid content and respiration rate were not affected by sample pretreatment. Internal ethylene concentration (IEC) of all pretreated apples remained below about 4.5 μL/L during the entire storage period while that of control sample greatly increased to 10.29 μL/L. Ethylene production was much higher in control fruits than in treated ones during cold storage. These results indicated that ReTain and 1-MCP treatments would be considerably effective in retention of fruit quality attributes of 'Jonathan' apple during cold-stored.

Effect of Salicylic Acid and 1-Methylcyclopropene Treatments on Fruit Quality and Cell Wall Hydrolases of ‘Hwangok’ Apples During Cold and Shelf-life Storage

“…The higher IEC observed under cold storage plus shelf life may be due to the transfer of the fruits to the shelf life conditions (Saletnik et al, 2022), as observed in the current study. Park et al (2016) observed that 1-MCP reduced the IEC of 'Jonathan' apples but did not affect the respiration rates. However, Argenta et al (2007) observed that 1-MCP reduced both the IEC and respiration rates in 'Delicious' apples.…”

Effects of 1-Methylcyclopropene Treatments on Fruit Quality Attributes and Cell Wall Metabolism in Cold Stored ‘Summer Prince’ and ‘Summer King’ Apples

“…사과는 대표적인 호흡급등형 과실로서 저장기간동안 호흡 급등과 함께 에틸렌 발생량이 증가하게 되고 (Johnston et al, 2001;Kwon et al, 2017), 이는 저장성과 상품성을 저하시키는 원인이 된다 (Yang et al, 2013;Park et al, 2016;Kim et al, 2018;Win et al, 2019;Yoo et al, 2019). 그동안 저장중 과실의 연화현상을 억제하기 위하여 1-methylcyclopropene (1-MCP)를 적용하여 왔고, 그 결과 사과 과실의 에틸렌 생성과 호흡률 감소, 경도와 산 함량 유지, 노화와 관련된 저장장해의 발생 경감 등 우수한 효과를 나타내고 있다 (Fan et al, 1999a(Fan et al, , 1999bDeEll et al, 2007;Watkins, 2007;.…”

Estimation of storability for Korean apples (Malus domestica) using Md-ACS1 and Md-ACO1 DNA marker

“…과육의 연화와 분질화를 막고, 과실 품질 유지 기간을 늘리기 위해서 에틸렌 작용 억제제인 1-methylcyclopropene (1-MCP)와 에틸렌 생합성 억제제인 aminoethoxyvinylglycine (AVG) 처리기술에 대한 많은 연구가 진행되고 있으며 사과 'Jonathan', 'Fuji', 'Gamhong' 품종의 저장 중 경도, 산 함량 등 과실 특성 유지 및 에틸렌 발생량 감소에 효과를 나타내 는 것으로 보고되었다 (8)(9)(10). 사과뿐만 아니라, 토마토, 복 숭아 등 호흡급등형 과실의 에틸렌 제어제 개발, 처리기술 과 관련한 많은 노력과 비용이 투입되고 있다 (11,12).…”