Effect of methyl jasmonate on quality and antioxidant activity of postharvest loquat fruit

被引:61
作者
Cao, Shifeng [1 ,2 ]
Zheng, Yonghua [1 ]
Yang, Zhenfeng [1 ]
Wang, Kaituo [1 ]
Rui, Huaijing [1 ]
机构
[1] Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing 210095, Peoples R China
[2] Nanjing Res Inst Agr Mechanizat, Minist Agr, Nanjing 210014, Peoples R China
基金
中国国家自然科学基金;
关键词
loquat fruit; methyl jasmonate; quality; phenolics; flavonoids; antioxidant activity; RADICAL SCAVENGING CAPACITY; VOLATILE COMPOUNDS; STORAGE; ACCUMULATION; FRACTIONS; PHENOLICS; EXTRACTS; OXIDASE; STRESS; LEAVES;
D O I
10.1002/jsfa.3691
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
BACKGOUND: Loquat fruit is rich in natural antioxidants and has shown a remarkably high antioxidant activity. To search for an effective method for maintaining or even improving antioxidant activity during postharvest storage, we investigated the effect of 10 mu mol L-1 methyl jasmonate (MeJA) treatment on levels of major individual sugars and organic acids, total phenolics, total carotenoids, total flavonoids and antioxidant activity in loquat fruit during storage at 1 degrees C for 35 days. RESULTS: The MeJA-treated fruit exhibited significantly lower levels of respiration rate, ethylene production, phenylalanine ammonia-lyase and polyphenol oxidase activities, and higher levels of sugars, organic acids, total phenolics and total flavonoids than control fruit. Meanwhile, the treatment also maintained significantly higher antioxidant activity as measured by the scavenging capacity against 1,1-diphenyl-2-picrylhydrazyl (DPPH), superoxide and hydroxyl radicals,and by the reducing power test compared to the control. There was a significant positive linear relationship between total phenolic content and DPPH radical scavenging activity. CONCLUSION: MeJA treatment can improve the quality and functional properties of harvested loquat fruit by maintaining a higher level of antioxidants and enhancing antioxidant activity. (C) 2009 Society of Chemical Industry
引用
收藏
页码:2064 / 2070
页数:7
相关论文
共 38 条
[1]   DETERMINATION OF ORGANIC-ACIDS IN FOODS BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY [J].
ASHOOR, SH ;
KNOX, MJ .
JOURNAL OF CHROMATOGRAPHY, 1984, 299 (01) :288-292
[2]   Methyl jasmonate in conjunction with ethanol treatment increases antioxidant capacity, volatile compounds and postharvest life of strawberry fruit [J].
Ayala-Zavala, JF ;
Wang, SY ;
Wang, CY ;
González-Aguilar, GA .
EUROPEAN FOOD RESEARCH AND TECHNOLOGY, 2005, 221 (06) :731-738
[3]  
Beauchamp C., 1971, ANAL BIOCHEM, V44, P276, DOI DOI 10.1016/0003-2697(71)90370-8
[4]   Antioxidants, oxidative damage and oxygen deprivation stress: a review [J].
Blokhina, O ;
Virolainen, E ;
Fagerstedt, KV .
ANNALS OF BOTANY, 2003, 91 (02) :179-194
[5]  
BRADFORD MM, 1976, ANAL BIOCHEM, V72, P248, DOI 10.1016/0003-2697(76)90527-3
[6]   Effects of storage temperature on antioxidant composition and antioxidant activity of loquat fruit [J].
Cao, S. F. ;
Zheng, Y. H. ;
Yang, Z. F. ;
Li, N. ;
Ma, S. J. ;
Tang, S. S. ;
Zhang, J. H. .
PROCEEDINGS OF THE SECOND INTERNATIONAL SYMPOSIUM ON LOQUAT, 2007, (750) :471-+
[7]   Effects of methyl jasmonate treatment on quality and decay in cold-stored Loquat fruit [J].
Cao, S. F. ;
Wang, Xq. ;
Yang, Z. F. ;
Ma, S. J. ;
Li, N. ;
Tang, S. S. ;
Wang, X. X. ;
Zheng, Y. H. .
PROCEEDINGS OF THE SECOND INTERNATIONAL SYMPOSIUM ON LOQUAT, 2007, (750) :425-+
[8]   Natural volatile treatments increase free-radical scavenging capacity of strawberries and blackberries [J].
Chanjirakul, Korakot ;
Wang, Shiow Y. ;
Wang, Chien Y. ;
Siriphanich, Jingtair .
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, 2007, 87 (08) :1463-1472
[9]   Effect of natural volatile compounds on antioxidant capacity and antioxidant enzymes in raspberries [J].
Chanjirakul, Korakot ;
Wang, Shiow Y. ;
Wang, Chien Y. ;
Siriphanich, Jingtair .
POSTHARVEST BIOLOGY AND TECHNOLOGY, 2006, 40 (02) :106-115
[10]   Biosynthesis and action of jasmonates in plants [J].
Creelman, RA ;
Mullet, JE .
ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1997, 48 :355-381