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Variation in antioxidant enzyme activities and nonenzyme components among cultivars of rabbiteye blueberries (Vaccinium ashei Reade) and V. ashei derivatives

文献类型： 外文期刊

作者： Wang, Shiow Y. 1 ; Chen, Hangjun 1 ; Ehlenfeldt, Mark K. 3 ;

作者机构： 1.ARS, Genet Improvement Fruits & Vegetables Lab, Beltsville Agr Res Ctr, USDA, Beltsville, MD 20705 USA

2.Zhejiang Acad Agr Sci, Inst Food Sci, Hangzhou 310021, Zhejiang, Peoples R China

3.Rutgers State Univ, Genet Improvement Fruits & Vegetables Lab, USDA, ARS,Marucci Ctr Blueberry & Cranberry Res & Exten, Chatsworth, NJ 08019 USA

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

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收录情况： SCI

摘要： Fruit from 42 blueberry {Vaccinium species) cultivars, including 36 rabbiteye cultivars [Vaccinium ashei Reade), 3 V. ashei hybrid derivatives and 3 northern highbush (V. corymbosum L) standards, were evaluated for antioxidant activities (AA), levels of antioxidant enzymes [catalase (CAT), ascorbate peroxidase (AsA-POD), glutathione reductase (GR), glutathione peroxidase (GSH-POD), superoxide dismutase (SOD), dehydroascorbate reductase (DHAR), monodehydroascorbate reductase (MDAR) and guaiacol peroxidase (G-POD)], and antioxidant nonenzyme components [ascorbic acid (ASA) and glutathione (GSH)]. The results of this study showed that cultivars had varying levels of AA, a wide range of antioxidant enzyme activities and various amounts of nonenzyme components. The correlations between AA and all of the enzyme activities or nonenzyme components were positive and high in the 42 cultivars tested in this study. The correlation (R~2) values between AA and CAT, SOD, DHAR, MDAR, GSH-POD, GR, G-POD and AsA-POD were 0.91,0.91,0.91, 0.91,0.90, 0.90, 0.90, and 0.90, respectively. The correlations between AA and ASA and GSH were 0.94 and 0.92, respectively. Among all 42 cultivars, 'Early May' had the highest activities of the AA, AsA-POD, G-POD, DHAR and MDAR and the highest amounts of ASA and GSH, whereas 'Elliott' had the highest levels of GR, GSH and SOD. Published by Elsevier Ltd. 【keyworks】Antioxidant capacity;Antioxidant enzyme activity;Blueberries;Vaccinium species

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