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Frontiers of Agriculture in China

ISSN 1673-7334

ISSN 1673-744X(Online)

CN 11-5729/S

Front Agric Chin    2011, Vol. 5 Issue (3) : 356-360     DOI: 10.1007/s11703-011-1053-y
Impact of ozone on quality of strawberry during cold storage
Xiaona ZHANG, Zide ZHANG(), Lei WANG, Zhenliang ZHANG, Jing LI, Congzhi ZHAO
College of Food Science and Technology, Agricultural University of Hebei, Baoding 071001, China
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The postharvest physiology of strawberry was investigated to study the effects of ozone on weight loss rate, ascorbic acid, respiration rate, peroxdase (POD) activity, catalase (CAT) activity, and malondialdehyde (MDA) content during cold storage. The strawberries were treated with ozone of 0 ppm (control), 2 ppm, 4 ppm, and 8 ppm, respectively. The results indicated that the treatment of 4 ppm ozone could inhibited the decrease of ascorbic acid, POD activity, and CAT activity, and reduced weight loss rate and MDA content. The treatment delayed the senescence of strawberry, with a significantly lower respiration rate. Thus, the best concentration of ozone was 4 ppm, and ozone treatment could be a good candidate for maintaining postharvest quality of strawberry and provide a longer storage life.

Keywords strawberry      ozone      cold storage      quality     
Corresponding Authors: ZHANG Zide,   
Issue Date: 05 September 2011
URL:     OR
Fig.1  Effects of ozone treatments on weight loss of strawberries.
Fig.2  Effects of ozone on ascorbic acid of strawberries.
Fig.3  Effects of ozone treatments on respiration rate of strawberries.
Fig.4  Effects of ozone treatments on POD activity of strawberries.
Fig.5  Effects of ozone treatments on CAT activity of strawberries.
Fig.6  Effects of ozone on MDA activity of strawberries.
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