Determination of cold storage quality and shelf life of a new Asian pear cultivar 'Chojuro Nashi'

T. Dilmaçünal, A.N. Yıldırım, B. Şan, F. Yıldırım, M.A. Koyuncu
The objective of this study was to investigate cold storage quality and shelf life of a new Asian pear cultivar 'Chojuro Nashi'. We attempted to identify the quality in relation to marketability of the fresh pear fruits affected by controlled atmosphere composition, cold storage and shelf life conditions. For this purpose pear fruits were transported to the laboratory immediately after harvest. Fruits without injury or decay were selected and divided into two groups. Group 1 (control) was stored in regular air (RA) at 0.5°C temperature and 90-95% relative humidity (RH) for 24 weeks. Group 2 was stored in controlled atmosphere (CA, 2.5% O2 + 1% CO2) condition at 0.5°C temperature and 90-95% RH for 32 weeks. During the experiment, fruits were removed from the RA and CA conditions at each analysis period and kept at room conditions (20°C temperature and 65±5% RH) for 5 days. Fruits were analyzed for weight loss, fruit peel and flesh color, flesh firmness, pH, titratable acidity, total soluble solids, respiration rate, ethylene production and sensorial evaluation (fruit juiciness, sourness, firmness, grittiness, ripeness, taste, aroma, visual quality and overall liking) during the experiment at 8 weeks intervals for RA, CA and subsequent shelf life conditions. Our findings suggest that 'Chojuro Nashi' pear fruit could be stored at marketable quality for 16 weeks in RA (5.8 point) and 16 weeks + 5 days (5.1 point) in shelf life conditions. The quality of the fruit maintained better in CA than RA condition. The pear fruits were in good quality for 32 weeks in CA (7.3 point) and 32 weeks + 5 days (8.3 point) in shelf life conditions.
Dilmaçünal, T., Yıldırım, A.N., Şan, B., Yıldırım, F. and Koyuncu, M.A. (2020). Determination of cold storage quality and shelf life of a new Asian pear cultivar 'Chojuro Nashi'. Acta Hortic. 1275, 105-112
DOI: 10.17660/ActaHortic.2020.1275.15
https://doi.org/10.17660/ActaHortic.2020.1275.15
Pyrus pryfolia, controlled atmosphere, fruit quality, respiration rate, sensorial evaluation
English

Acta Horticulturae