4.6 Article

Phytochemical composition and antiproliferative activities of bran fraction of ten Maryland-grown soft winter wheat cultivars: Comparison of different radical scavenging assays

期刊

JOURNAL OF FOOD COMPOSITION AND ANALYSIS
卷 36, 期 1-2, 页码 51-58

出版社

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jfca.2014.06.005

关键词

Food composition; Food analysis; Soft winter wheat bran; Ferulic acid; Carotenoids; Tocopherols; Total phenolic content; Radical scavenging capacity; Antiproliferation activity

资金

  1. Joint Institute for Food Safety and Applied Nutrition (JIFSAN)
  2. Maryland Grain Producers Utilization Board (MGPUB)

向作者/读者索取更多资源

Phytochemicals (ferulic acid, tocopherols, and carotenoids) composition and antiproliferative activities of bran samples of the 10 soft winter wheat varieties grown in Maryland were investigated. All extracts were assayed for total phenolic content and free radical scavenging capacities by multiple colorimetric assays along with cellular antioxidant activity (CAA) and antiproliferative activity. Ferulic acid was the predominant phenolic acid in all 10 wheat bran samples with concentration ranging between 1.1 and 1.7 mg/g. The concentrations of lutein, zeaxanthin, and beta-carotene ranged between 1.0-1.4,0.2-0.3, and 0.1-0.2 mu g/g, respectively. Significant amount of a.-tocopherol (2.3-5.3 mu g/g) was quantified in all bran samples along with minor quantity of delta-tocopherol (similar to 0.1 mu g/g). No significant correlation between ferulic acid, tocopherol and carotenoid content and in vitro antioxidant radical scavenging assays or total phenolic content was observed. The Jamestown wheat bran demonstrated significant antiproliferative activities against both HT-29 and Caco-2 colon cancer cells at concentration of 50 mg bran equivalent (BE)/mL. Published by Elsevier Inc.

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