Enhancement of antioxidant capacity of cornelian cherry (Cornus mas) fruit by postharvest calcium treatment

详细信息    查看全文

• 作者：Morteza Soleimani Aghdam ; Afsaneh Yousefpour Dokhanieh ; Hamid Hassanpour ; Javad Rezapour Fard
• 关键词：Antioxidant capacity ; Calcium chloride ; Cornelian cherry ; DPPH scavenging ; Postharvest ; Phenylalanine ammonia-lyase
• 刊名：Scientia Horticulturae
• 出版年：2013
• 出版时间：24 September, 2013
• 年：2013
• 卷：161
• 期：Complete
• 页码：160-164
• 全文大小：689 K

文摘

In order to enhance postharvest antioxidant capacity of cornelian cherry fruits, the effects of treatment with 0 (control), 40, 60 and 80 mM calcium chloride (CaCl₂) on total phenols (TP), flavonoids (TF), anthocyanins (TA), ascorbic acid (AA) contents, DPPH scavenging activity and phenylalanine ammonia-lyase (PAL) enzyme activity were investigated in fruits stored at 4 ¡ãC for 21 days. The CaCl₂ treatments were effective in maintaining higher total phenols, flavonoids, anthocyanins, ascorbic acid contents, as well as DPPH scavenging activity. Also, PAL enzyme activity of the cornelian cherry fruits was significantly increased by CaCl₂ treatments. These results suggest that enhanced antioxidant capacity of cornelian cherry fruits might be due to the stimulation of PAL enzyme activity and thus triggering the phenylpropanoid-flavonoids pathways.