作者
Saleh MS Sawalha, David Arráez-Román, Antonio Segura-Carretero, Alberto Fernández-Gutiérrez
发表日期
2009/9/15
期刊
Food Chemistry
卷号
116
期号
2
页码范围
567-574
出版商
Elsevier
简介
The food and agricultural products processing industries generate substantial quantities of phenolics-rich subproducts, which could be valuable natural sources of polyphenols. In oranges, the peel represents roughly 30% of the fruit mass and the highest concentrations of flavonoids in citrus fruit occur in peel. In this work we have carried out the characterisation and quantification of citrus flavonoids in methanolic extracts of bitter and sweet orange peels using CE–ESI–IT–MS. Naringin (m/z 579.2) and neohesperidin (m/z 609.2) are the major polyphenols in bitter orange peels and narirutin (m/z 579.2) and hesperidin (m/z 609.2) in sweet orange peels. The proposed method allowed the unmistakable identification, using MS/MS experiments, and also the quantification of naringin (5.1±0.4mg/g), neohesperidin (7.9±0.8mg/g), narirutin (26.9±2.1mg/g) and hesperidin (35.2±3.6mg/g) in bitter and sweet orange peels. CE …
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