Influence of Antioxidant Components on Antioxidant Activity of Dehydrated Green Leafy Vegetables

• GUPTA Sheetal

  Department of Studies in Food Science & Nutrition, University of Mysore

• PRAKASH Jamuna

  Department of Studies in Food Science & Nutrition, University of Mysore

抄録

The objective of the study was to analyze the influence of antioxidant components on antioxidant activity of dehydrated green leafy vegetables (GLV), namely, Amaranthus sp., Centella asiatica, Murraya koenigii and Trigonella feonum graecum. The edible portion of the GLV was chemically treated, steam blanched, oven dried and analyzed for antioxidant components and antioxidant activity. Multiple regression analysis was done to test for the relationship between antioxidant activity and the antioxidant components. The ascorbic acid, total carotene, β-carotene and total polyphenol content (tannic acid equivalents) of the GLV ranged between 1.94 – 8.63, 12.13 – 29.8, 2.63 – 4.24 and 637.50 – 1170.83 mg/100g respectively. The total antioxidant activity was highest in Trigonella feonum graecum and the least in Amaranthus sp. The GLV exhibited varied levels of antioxidant activity as analyzed by 1,1-diphenyl-2-picryl hydrazyl (free radical scavenger), reducing power and ferrous ion chelating activity at different concentrations of the extract, which were significantly different. Multiple regression analysis showed that the relationship of (i) total antioxidant activity, (ii) free radical scavenging activity and (iii) reducing power, each with antioxidant components in dehydrated GLV, was statistically significant.

収録刊行物

• Food Science and Technology Research

  Food Science and Technology Research 14 (1), 104-109, 2008

  公益社団法人 日本食品科学工学会

キーワード

• dehydrated green leafy vegetables
• polyphenol
• β-carotene
• free radical scavenging activity
• reducing power
• multiple regression analysis.

詳細情報

• CRID: 1390001204455447296
• NII論文ID: 10021184808
• NII書誌ID: AA11320122
• DOI: 10.3136/fstr.14.104
• COI: 1:CAS:528:DC%2BD1cXksFWgt7g%3D
• ISSN: 18813984
• ISSN: 13446606
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可