Influence of the drying method in the antioxidant potential and chemical composition of four shrubby flowering plants from the tribe Genisteae (Fabaceae)

Pinela, José; Barros, Lillian; Carvalho, Ana Maria; Ferreira, Isabel C.F.R.

doi:10.1016/j.fct.2011.07.054

Cited by 64 publications

(98 citation statements)

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“…Fatty acids were determined by gas-liquid chromatography with a ame ionization detection (GC-FID)/ capillary column as described previously by the authors. 22 The analysis was carried out with a DANI model GC 1000 instrument equipped with a split/splitless injector, a ame ionization detector (FID at 260 C) and a Macherey-Nagel (Duren, Germany) column (50% cyanopropyl-methyl-50% phenylmethylpolysiloxane, 30 m Â 0.32 mm ID Â 0.25 mm d f ). The oven temperature program is as follows: the initial temperature of the column was 50 C, held for 2 min, then a 30 C min À1 ramp to 125 C, 5 C min À1 ramp to 160 C, 20 C min À1 ramp to 180 C, 3 C min À1 ramp to 200 C, 20 C min À1 ramp to 220 C and held for 15 min.…”

Section: Phytochemical Composition In Lypophilic Compoundsmentioning

confidence: 99%

“…Tocopherols were determined following a procedure previously described by the authors. 22 Analysis was performed by HPLC (equipment described above), and a uo-rescence detector (FP-2020; Jasco, Easton, MD, USA) programmed for excitation at 290 nm and emission at 330 nm. The chromatographic separation was achieved with a Polyamide II (250 Â 4.6 mm) normal-phase column from YMC Waters operating at 30 C. The mobile phase used was a mixture of nhexane and ethyl acetate (70 : 30, v/v) at a ow rate of 1 mL min À1 , and the injection volume was 20 mL.…”

Section: Phytochemical Composition In Lypophilic Compoundsmentioning

confidence: 99%

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Bioactivity and phytochemical characterization of Arenaria montana L.

et al. 2014

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The bioactivity (antioxidant and cytotoxic activities) of the aqueous and methanolic extracts of Arenaria montana L., a plant commonly used in Portuguese folk medicine, was evaluated and compared.Furthermore, the phytochemical composition was determined based on hydrophilic (sugars, organic acids and phenolic compounds) and lipophilic (fatty acids and tocopherols) compounds, in order to valorize this plant material as a functional food/nutraceutical. Fructose, oxalic acid, methyl-luteolin 2 00 -O-feruloylhexosyl-C-hexoside, a-tocopherol, and linoleic acid were the main individual compounds found in A. montana. In general, the aqueous extract showed higher antioxidant and cytotoxic activities than the methanolic extract; the latter showed activity only against HeLa and HepG2 cell lines. Both aqueous and methanolic extracts showed some hepatotoxicity but at higher doses than the ones active for tumor cell lines. Moreover, the aqueous extract of A. montana may be used as a functional food or nutraceutical due to the high antioxidant and cytotoxic activities, and due to the presence of bioactive compounds. As far as we know, this is the first report on the phytochemical composition and bioactivity of A. montana.

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Section: Phytochemical Composition In Lypophilic Compoundsmentioning

confidence: 99%

Section: Phytochemical Composition In Lypophilic Compoundsmentioning

confidence: 99%

Bioactivity and phytochemical characterization of Arenaria montana L.

et al. 2014

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“…In turn, the immature fruits of M. sylvestris (Barros et al, 2010a) and plants used as a condiment or spice (mainly flowering parts) reveal the lowest moisture content (< 62 g/100 g). This is the case of Thymus pulegioides, T. mastichina, Mentha pulegium, Origanum vulgare, Pterospartum tridentatum and Helichrysum stoechas (Barros et al, 2011aFernandes et al, 2010;Pinela et al, 2011). The protein levels of the selected WEPs range from 0.6 to 6.2 g/ 100 g ( Table 2).…”

Section: Proximate Compositionmentioning

confidence: 99%

“…The protein levels of the selected WEPs range from 0.6 to 6.2 g/ 100 g ( Table 2). The flowers of P. tridentatum (Pinela et al, 2011) and the young aerial parts of Bryonia dioica (Fig. 1) (García Herrera, 2014;Martins et al, 2011) present the highest amounts.…”

Section: Proximate Compositionmentioning

confidence: 99%

“…The flowering parts of Malva sylvestris (Barros et al, 2010a), M. pulegium (Fernandes et al, 2010), R. ulmifolius (Barros et al, 2010e), F. vulgare (Barros et al, 2010b) and P. tridentatum (Pinela et al, 2011) were reported as having a total sugars content ranging from 2066 mg/100 (in P. tridentatum) to 5508 mg/100 g (in M. sylvestris). Some of these plant parts have been used as condiment and/or in herbal beverages to treat a number of health conditions (Table 1).…”

Section: Individual Sugarsmentioning

confidence: 99%

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Wild edible plants: Nutritional and toxicological characteristics, retrieval strategies and importance for today's society

Pinela

Ferreira

2017

Food and Chemical Toxicology

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A B S T R A C TWild edible plants (WEPs) are part of the cultural and genetic heritage of different regions of the world. In times of famine and scarcity, these sources of nutrients and health-promoting compounds have received high importance mainly in rural and suburban areas. Although currently underutilized, WEPs are still consumed traditionally by different communities and are gaining relevance in today's society. However, these foods lack recognition as significant contributors to the human diet in developed areas. This review describes the nutritional value of WEPs from the North-eastern region of Portugal and points out those containing potentially toxic compounds. Several retrieval strategies are presented with the aim of promoting the (re)use, production, commercialization and conservation of WEPs (wild harvested plants and crop wild relatives), and their importance for social, economic and agro-ecological development is highlighted.

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Effect of different drying methods on the phenolic, flavonoid and volatile compounds of Stevia rebaudiana leaves

Periche

Castelló

Heredia

et al. 2015

Flavour & Fragrance J

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Different drying methods (hot air drying, freeze drying and shade drying) were evaluated to discern the optimal conditions for the preservation of flavonoid, phenolic and volatile compounds in stevia leaves. All the methods applied affected the antioxidant and volatile compounds in dried stevia leaves differently. 2-Hexenal, hexanal and α-pinene were the most abundant volatile compounds produced by freeze drying and shade drying (21.1-19.7; 14.2-10 and 19.4-5.04 μg/g, respectively); and furan tetrahydro and α-pinene (3.2 and 3.1 μg/g, respectively) by air drying. While chlorogenic acid, coumaric acid and sinapic acid were the most abundant phenolic compounds produced by all the drying treatments (with values that ranged between 88. 6-191.8; 41.7-91.3 and 33.2-178.5 mg/100g dry weight of stevia, respectively). The content of volatile compounds was higher with shade drying, whereas most flavonoids and phenolic acids had higher concentrations following freeze drying, although some flavonoids and phenolic acids exhibited a higher increment with air drying. There is no best drying treatment, however, freeze drying results in an extract with satisfactory antioxidant properties and good aromatic characteristics.

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Influence of the drying method in the antioxidant potential and chemical composition of four shrubby flowering plants from the tribe Genisteae (Fabaceae)

Cited by 64 publications

References 20 publications

Bioactivity and phytochemical characterization of Arenaria montana L.

Bioactivity and phytochemical characterization of Arenaria montana L.

Wild edible plants: Nutritional and toxicological characteristics, retrieval strategies and importance for today's society

Effect of different drying methods on the phenolic, flavonoid and volatile compounds of Stevia rebaudiana leaves

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