Edible Flowers-A New Promising Source of Mineral Elements in Human Nutrition

Department of Food Technology and Microbiology, Faculty of Technology, Tomas Bata University in Zlin, Namesti T. G. Masaryka 275, CZ-762 72 Zlin, Czech Republic.
Molecules (Impact Factor: 2.42). 12/2012; 17(6):6672-83. DOI: 10.3390/molecules17066672
Source: PubMed


On a global scale, people are demanding more attractive and tasty food. Both the quality of foodstuffs and aesthetic aspects contribute to the appearance of consumed meals. The attraction and appeal of individual dishes could be enhanced by edible flowers. New information concerning the composition and nutritional value of edible flowers is also important and represents a sufficient reason for their consumption. The aim of this study is to contribute to the popularization of some selected edible flowers of ornamental plants involving altogether 12 species. The flowers were used to determine their antioxidant capacity, which fluctuated between 4.21 and 6.96 g of ascorbic acid equivalents (AAE)/kg of fresh mass (FM). Correlation coefficients between antioxidant capacity and the contents of total phenolics and flavonoids were r² = 0.9705 and r² = 0.7861, respectively. Moreover, the results were supplemented with new data about the mineral composition of edible flowers (mostly, not found in the available literature). The highest levels of mineral elements were observed in the flowers of species Chrysanthemum, Dianthus or Viola. The most abundant element was potassium, the content of which ranged from 1,842.61 to 3,964.84 mg/kg of FM.

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Available from: Tunde Jurikova, Mar 01, 2014
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    • "Many studies indicated that edible flowers showed not only antioxidant and ROS scavenging activities but also had significant anti-inflammatory effects within the human body due to their bioactivity compounds. For instance, the flowers of ornamental roses were considered as a source of anti-inflammatory, anti-bacterial, antifungal and anti-viral substances [1] [2]. The chrysanthemum flowers showed a marked antimicrobial, antiinflammatory , and inhibiting effect on carcinogenesis in mice [1]. "
    01/2014; 2(8):457-464. DOI:10.12691/jfnr-2-8-5
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    • ", which has potent antioxidant qualities , as well as other antioxi - dant glycosides ( Cichewicz and Nair 2002 ) . Several caf - feoylquinic acid derivatives in the flowers have also been identified as significant antioxidants ( Lin et al . 2011 ) . Hemerocallis flowers have considerable potential as ' nutraceutical ' foods ( Mlček and Rop 2011 ; Rop et al . 2012 ) . The genus has been considered to have exceptional medicinal value in its natural range ( Mlček and Rop 2011 ) . Traditionally , Hemerocallis has been used to treat sleep disorders and to alter mood ; in Japan and China it is known as ' forget one ' s sorrow plant ' . These purported qualities have been scientifically tested and ther"
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    ABSTRACT: Genetic model organisms have revolutionized science, and today, with the rapid advances in technology, there is significant potential to launch many more plant species towards model status. However, these new model organisms will have to be carefully selected. Here, we argue that Hemerocallis (daylily) satisfies multiple criteria for selection and deserves serious consideration as a subject of intensive biological investigation. Several attributes of the genus are of great biological interest. These include the strict control of flower opening and, within a short period, the precisely regulated floral death by a programmed cell death system. The self-incompatibility system in Hemerocallis is also noteworthy and deserves more attention. Importantly, the genus is widely cultivated for food, medicinal value and ornamental interest. Hemerocallis has considerable potential as a 'nutraceutical' food plant and the source of new compounds with biomedical activity. The genus has also been embraced by ornamental plant breeders and the extraordinary morphological diversity of hybrid cultivars, produced within a relatively short time by amateur enthusiasts, is an exceptional resource for botanical and genetic studies. We explore these points in detail, explaining the reasons why this genus has considerable value-both academic and socio-economic-and deserves new resources devoted to its exploration as a model. Its impact as a future model will be enhanced by its amenability to cultivation in laboratory and field conditions. In addition, established methods for various tissue and cell culture systems as well as transformation will permit maximum exploitation of this genus by science.
    AoB PLANTS 02/2013; 5:pls055. DOI:10.1093/aobpla/pls055 · 2.27 Impact Factor
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    ABSTRACT: The present study was conducted in order to estimate the content of elements and to determine the anticariogenic efficacy of flowers of Calycopteris floribunda (Roxb.) Poiret (Combretaceae), Humboldtia brunonis Wall (Caesalpiniaceae) and Kydia calycina Roxb. (Malvaceae). The major and minor elements in powdered flowers were estimated by Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES). Anticariogenic potential of petroleum ether, chloroform and methanol extracts of flowers was tested against 4 isolates of Streptococcus mutans by agar well diffusion method. Flower of K. calycina was found to contain high quantity of most of the elements estimated. The content of potassium and sodium was highest and least respectively among major elements. Among the minor elements, the content of iron and chromium was high and low respectively. The flower extracts were found to inhibit all four isolates of S. mutans. Among flowers, extracts of C. floribunda exhibited highest inhibition of test bacteria followed by K. calycina and H. brunonis. The flowers selected in the present study are shown to be a good source of various elements. Inhibition of cariogenic bacteria could be due to the presence of phytoconstituents present in flower extracts.
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