期刊
FOOD AND CHEMICAL TOXICOLOGY
卷 49, 期 11, 页码 2983-2989出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fct.2011.07.054
关键词
Genisteae; MAP; Antioxidants; Energetic value; Drying process
资金
- Foundation for Science and Technology (FCT, Portugal)
- FCT
- POPH-QREN
- FSE [SFRH/BPD/4609/2008]
Flowers from several common Mediterranean shrubs, such as those from the Cytisus genus and Genista genus (tribe Genisteae/Fabaceae) have long been used for medicinal purposes and seasoning in the northeastern Portuguese region. Despite, the shade-drying traditionally used to process these plants, freeze-drying is claimed to better preserve the quality of medicinal plants. Herein, the effects of drying process in the antioxidants composition and properties of Cytisus multiflorus, Cytisus scoparius, Cytisus striatus and Pterospartum tridentatum were evaluated. Freeze-dried P. tridentatum revealed the highest antioxidant properties (EC50 values <= 0.15 mg/ml). Freeze-drying benefits were confirmed showing, the samples submitted to this process, higher antioxidant activity and higher concentrations of hydrophilic (phenolics, ascorbic acid and sugars) and lipophilic (tocopherols, chlorophylls and lycopene) compounds. This process could be applied in scale-up treatments of the studied plants for cosmetic or pharmaceutical applications. (C) 2011 Elsevier Ltd. All rights reserved.
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