Document Details

Document Type : Article In Journal 
Document Title :
Antioxidant capacity, antioxidant compounds and antioxidant enzyme activities in five date cultivars during development and ripening
Antioxidant capacity, antioxidant compounds and antioxidant enzyme activities in five date cultivars during development and ripening
 
Subject : Biochemistry 
Document Language : English 
Abstract : Antioxidant capacity, antioxidant compounds and antioxidant enzyme activities in dates of five cultivars during development and ripening were studied in the 2009 and 2010 seasons. Fruit growth followed a smooth sigmoid curve with maximum weight at the bisir stage. Both the antioxidant capacity measured by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method and the antioxidant compound (phenols, tannins and vitamin C) concentrations decreased from young stages through to the maturation and the ripening stages. The antioxidant capacity was highly positively correlated with the concentration of antioxidant compounds in most cultivars. The activities of the antioxidant enzymes, peroxidase, catalase and polyphenoloxidase (PPO) increased from the hababouk through to the kimri and/or the bisir stage, upon cultivar, and thereafter, declined at the ripening stages. The possible relation of these biochemical changes with fruit maturation and ripening was discussed. 
ISSN : 0304-4238 
Journal Name : Scientia Horticulturae 
Volume : 129 
Issue Number : 4 
Publishing Year : 1432 AH
2011 AD 
Article Type : Article 
Added Date : Saturday, February 18, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Mohamed A AwadAwad, Mohamed AResearcherDoctoratemawad@mans.edu.eg
Adel D Al-QurashiAl-Qurashi, Adel DResearcherDoctorate 
صالح أحمد محمدMohamed, Saleh AhmedResearcherDoctoratesaleh38@hotmail.com

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