The Experts below are selected from a list of 18981 Experts worldwide ranked by ideXlab platform
Isabel C.f.r. Ferreira - One of the best experts on this subject based on the ideXlab platform.
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chemical composition and bioactive properties of the wild Edible Plant raphanus raphanistrum l
Food Research International, 2019Co-Authors: Julia Harumi Iyda, Tânia C S P Pires, Joana S Amaral, Maria José Alves, Ângela Fernandes, Lillian Barros, Flavio Dias Ferreira, Isabel C.f.r. FerreiraAbstract:Abstract Recently, there has been an interest regarding the consumption of wild Edible Plants in modern diets. However, there is still scarce information about several wild vegetables traditionally consumed. Therefore, this work aims on documenting the nutritional and chemical composition of wild radish (Raphanus raphanistrum L.), as well as its bioactive potential. Results showed that wild radish is a potential source of beneficial compounds, including vitamin E, polyunsaturated fatty acid (particularly α-linolenic acid) and different phenolic compounds, in which fourteen phenolics were identified, with kaempferol-3,7-O-di-rhamnoside being the most abundant. The bioactive potential was exploited using hydroethanolic and decoction extracts. Both proved to inhibit several Gram-positive and Gram-negative bacteria and revealed antioxidant activity, while cytotoxicity against non-tumor cell was not observed. In general, results evidence the interest in recovering the use of this wild vegetable as part of a varied diet, which can bring several health benefits.
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leaves flowers immature fruits and leafy flowered stems of malva sylvestris a comparative study of the nutraceutical potential and composition
Food and Chemical Toxicology, 2010Co-Authors: Lillian Barros, Ana Maria Carvalho, Isabel C.f.r. FerreiraAbstract:Abstract Malva sylvestris is widely used in Mediterranean and European traditional medicine and ethnoveterinary for the treatment of external and internal inflammation, as well as injuries. Moreover, its use is not only limited to therapeutic purposes; but also the species is locally regarded as a food wild herb. Considering that antioxidants and free radical scavengers can exert also an anti-inflammatory effect, the extracts of different parts of the medicinal/Edible Plant M. sylvestris (leaves, flowers, immature fruits and leafy flowered stems) were compared for their nutraceutical potential (antioxidant properties) and chemical composition. Particularly, mallow leaves revealed very strong antioxidant properties including radical-scavenging activity (EC 50 = 0.43 mg/mL), reducing power (0.07 mg/mL) and lipid peroxidation inhibition in lipossomes (0.04 mg/mL) and brain cells homogenates (0.09 mg/mL). This part of the Plant is also the richest in nutraceuticals such as powerful antioxidants (phenols, flavonoids, carotenoids, and tocopherols), unsaturated fatty acids (e.g. α-linolenic acid), and minerals measured in ash content.
Yuanqiang Guo - One of the best experts on this subject based on the ideXlab platform.
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sesquiterpenoids from an Edible Plant petasites japonicus and their promoting effects on neurite outgrowth
Journal of Functional Foods, 2016Co-Authors: Xiangrong Cao, Dongho Lee, Yasushi Ohizumi, Yuanqiang GuoAbstract:Abstract Petasites japonicus (Sieb. & Zucc.) Maxim., belonging to the Compositae family, is a perennial herb and has been consumed as a wild vegetable. Our survey on the chemical composition of P. japonicus resulted in the isolation of two new and seventeen known sesquiterpenoids. Their structures were elucidated on the basis of nuclear magnetic resonance (NMR) spectroscopic data analysis, and the absolute configurations of the new compounds were established by comparison of the calculated and experimental electronic circular dichroism (ECD) spectra. Among these isolates, compound 1 was a sesquiterpene carrying a chlorine atom, 2 processed a rare 7,9-secobakkenolide skeleton, and compounds 4, 11–13, 15, 18, and 19 were obtained from this species for the first time. Most of these compounds showed promoting effects on neurite outgrowth from PC12 cells. These chemical and biological results provide a basis for further development and utilization of P. japonicus as a functional food.
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characterization and no inhibitory activities of chemical constituents from an Edible Plant petasites tatewakianus
Journal of Agricultural and Food Chemistry, 2014Co-Authors: Meicheng Wang, Daqing Jin, Chunfeng Xie, Hao Wang, Yasushi Ohizumi, Qiang Zhang, Quanhui Ren, Yihang Sun, Yuanqiang GuoAbstract:Petasites tatewakianus is an Edible Plant belonging to the family Compositae. In our continuous search for NO inhibitors, which may be useful for the development of anti-inflammatory agents, the chemical constituents of the leaves of the Edible Plant P. tatewakianus were investigated. This phytochemical investigation led to the isolation of 3 new (1-3) and 10 known (4-13) sesquiterpenes and 2 other types of known compounds (14 and 15). Their structures were elucidated on the basis of extensive 1D and 2D NMR spectroscopic data analyses, and the absolute configurations of compounds 1 and 3 were confirmed by comparing their experimental CD spectra with those calculated by the time-dependent density functional theory (TDDFT) method. The following biological studies disclosed that these isolated compounds showed inhibitory activities on LPS-induced NO production in murine microglial BV-2 cells. The results of our phytochemical investigation, including two new bakkenolide sesquiterpenes (1 and 2), one new sesquiterpene with an unusual carbon skeleton (3), and the first report of compounds 5-7 and 10-15 from this species, further revealed the chemical composition of P. tatewakianus as an Edible Plant, and the biological studies implied that P. tatewakianus, containing bioactive substances with the inhibitory activities of NO production, was potentially beneficial to human health.
R.s. Glew - One of the best experts on this subject based on the ideXlab platform.
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The trypsin inhibitor content of 61 wild Edible Plant foods of Niger
Plant Foods for Human Nutrition, 2000Co-Authors: D.j. Vanderjagt, C. Freiberger, G. Mounkaila, R.s. GlewAbstract:In the western Sahel and many other regions of sub-Saharan Africa,wild Edible Plants contribute significantly to human diets, notonly during periods when cereal staples are scarce, but also whenthey are readily available. Although there have been publishedreports regarding the nutrient contents of these Plant foods,little attention has been devoted to their content of antinutrientssuch as calcium chelators and inhibitors of the pancreas-derivedproteases, trypsin and chymotrypsin, which are required for theefficient digestion and absorption of dietary proteins. In thisstudy, aqueous extracts of 61 different leaves, seeds, fruits andflowers of Edible Plants gathered in the Republic of Niger wereanalyzed for their content of trypsin inhibitory substances usingα-N-benzoyl-DL-arginine-p-nitroanilide as the substrate andbovine trypsin as the enzyme source. Twelve of these Plant foodscontained more antitrypsin activity than soybeans (1.34–8.18 vs.1.32 μg trypsin inhibited/mg dry weight). Boiling for 3 mindid not inactivate the antitrypsin activity in most of the Plantextracts. These data confirm that more than half of the wildEdible Plant foods widely consumed by various populations whoinhabit the western Sahel contain significant quantities of heat-stable trypsin inhibitor that could possibly compromise thebioavailability of proteins present in the diets of these populations.
Vlada B Veljkovic - One of the best experts on this subject based on the ideXlab platform.
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biodiesel production from non Edible Plant oils
Renewable & Sustainable Energy Reviews, 2012Co-Authors: Ivana B Bankovicilic, Olivera S Stamenkovic, Vlada B VeljkovicAbstract:Because of biodegradability and nontoxicity biodiesel has become more attractive as alternative fuel. Biodiesel is produced mainly from vegetable oils by transesterification of triacylglycerols. From economic and social reasons, Edible oils should be replaced by lower-cost and reliable feedstocks for biodiesel production such as non-Edible Plant oils. This paper reviews various methods for biodiesel production from common non-Edible oils employing alcoholysis reactions. The aim of this paper is to present the possibilities of the use of non-Edible oils into biodiesel production, to consider the various methods for treatment of non-Edible oils and to emphasize the influence of the operating and reaction conditions on the process rate and the ester yield. The special attention is paid to the possibilities of optimization, kinetics and improvement of biodiesel production from non-Edible oils.
Lillian Barros - One of the best experts on this subject based on the ideXlab platform.
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chemical composition and bioactive properties of the wild Edible Plant raphanus raphanistrum l
Food Research International, 2019Co-Authors: Julia Harumi Iyda, Tânia C S P Pires, Joana S Amaral, Maria José Alves, Ângela Fernandes, Lillian Barros, Flavio Dias Ferreira, Isabel C.f.r. FerreiraAbstract:Abstract Recently, there has been an interest regarding the consumption of wild Edible Plants in modern diets. However, there is still scarce information about several wild vegetables traditionally consumed. Therefore, this work aims on documenting the nutritional and chemical composition of wild radish (Raphanus raphanistrum L.), as well as its bioactive potential. Results showed that wild radish is a potential source of beneficial compounds, including vitamin E, polyunsaturated fatty acid (particularly α-linolenic acid) and different phenolic compounds, in which fourteen phenolics were identified, with kaempferol-3,7-O-di-rhamnoside being the most abundant. The bioactive potential was exploited using hydroethanolic and decoction extracts. Both proved to inhibit several Gram-positive and Gram-negative bacteria and revealed antioxidant activity, while cytotoxicity against non-tumor cell was not observed. In general, results evidence the interest in recovering the use of this wild vegetable as part of a varied diet, which can bring several health benefits.
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leaves flowers immature fruits and leafy flowered stems of malva sylvestris a comparative study of the nutraceutical potential and composition
Food and Chemical Toxicology, 2010Co-Authors: Lillian Barros, Ana Maria Carvalho, Isabel C.f.r. FerreiraAbstract:Abstract Malva sylvestris is widely used in Mediterranean and European traditional medicine and ethnoveterinary for the treatment of external and internal inflammation, as well as injuries. Moreover, its use is not only limited to therapeutic purposes; but also the species is locally regarded as a food wild herb. Considering that antioxidants and free radical scavengers can exert also an anti-inflammatory effect, the extracts of different parts of the medicinal/Edible Plant M. sylvestris (leaves, flowers, immature fruits and leafy flowered stems) were compared for their nutraceutical potential (antioxidant properties) and chemical composition. Particularly, mallow leaves revealed very strong antioxidant properties including radical-scavenging activity (EC 50 = 0.43 mg/mL), reducing power (0.07 mg/mL) and lipid peroxidation inhibition in lipossomes (0.04 mg/mL) and brain cells homogenates (0.09 mg/mL). This part of the Plant is also the richest in nutraceuticals such as powerful antioxidants (phenols, flavonoids, carotenoids, and tocopherols), unsaturated fatty acids (e.g. α-linolenic acid), and minerals measured in ash content.
