کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1188638 963493 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterisation, extraction efficiency, stability and antioxidant activity of phytonutrients in Angelica keiskei
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Characterisation, extraction efficiency, stability and antioxidant activity of phytonutrients in Angelica keiskei
چکیده انگلیسی

Phytonutrients in Angelica keiskei, a dark green leafy vegetable, were characterised and their extraction efficiency by different compositions of water/ethanol as well as stability at different temperatures was determined. A range in the content of lutein (205–265 mg/kg dry wt), trans-β-carotene (103–130 mg/kg dry wt), and total phenols (8.6–9.7 g/kg) was observed amongst Angelica keiskei grown in three different conditions. LC-ESI-MS/MS analysis identified chlorogenic acid, chalcones and the glucosides of luteolin and quercetin as the major phenolic compounds in Angelica keiskei. Only 46% of lutein was extracted by 70% of ethanol and no carotenoid was detected in 40% ethanol and 100% water extracts of Angelica keiskei. Major phytonutrients in Angelica keiskei were stable at −80 °C up to 12 months whilst β-carotene was significantly degraded at room temperature and 4 °C within 2 months and lutein at room temperature within 12 months.The current study indicates that phytonutrients rich in Angelica keiskei can only be extracted partially using ethanol/water and substantial loss of certain phytonutrients such as β-carotene can occur during storage at either 4 °C or room temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 115, Issue 1, 1 July 2009, Pages 227–232
نویسندگان
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