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Schechtel SL, de Matos VCR, Santos JS, Cruz TM, Marques MB, Wen M, Zhang L, Furtado MM, Sant'Ana AS, Vieira do Carmo MA, Azevedo L, Ribeiro JCB, Granato D. Flaxleaf Fleabane Leaves (Conyza bonariensis), A New Functional Nonconventional Edible Plant? J Food Sci 2019; 84:3473-3482. [PMID: 31721214 DOI: 10.1111/1750-3841.14848] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/21/2019] [Accepted: 09/25/2019] [Indexed: 12/22/2022]
Abstract
This work aimed to investigate the phytochemical composition, nutritional value, antioxidant, antihemolytic, antihyperglycemic, and antiproliferative activities of flaxleaf fleabane (Conyza bonariensis) leaves. Different concentrations of water and ethanol (0:100, 25:75, 50:50, 75:25, and 100:0 v/v) were used in the extraction process and results showed that the hydroalcoholic extract (50:50 v/v) presented the highest total phenolics, ortho-diphenolics, Folin-Ciocalteu reducing capacity, FRAP, and Fe2+ chelating ability values. Flaxleaf fleabane leaves (FFL) contained 19.6 g/100 g of fibers and 26 g/100 g of proteins. Ellagic acid, procyanidin A2, caffeic, rosmarinic, gallic, and 2,5-dihydroxybenzoic acids were the main phenolics. This phenolic-rich extract inhibited the lipid oxidation of Wistar rat brain (IC50 = 863.0 mg GAE/L), inhibited α-glucosidase activity (IC50 = 435.4 µg/mL), protected human erythrocytes against mechanical hemolysis at different osmolarity conditions, and showed cytotoxic/antiproliferative effects against human ileocecal adenocarcinoma cells (HCT8; IC50 = 552.6 µg/mL) but no cytotoxicity toward noncancerous human lung fibroblast (IMR90). Overall, FFL showed potential to be explored by food companies to be a source of proteins, natural color substances, and phenolic compounds. PRACTICAL APPLICATION: Flaxleaf fleabane leaves (FFL) are usually burnt or partially given to cattle, without a proper utilization as a source of nutrients for human nutrition. Here, we studied the nutritional composition, phenolic composition, and toxicological aspects of FFL using different biological protocols. FFL was proven to be a rich source of proteins and dietary fibers and showed antioxidant activity measured by chemical and in vitro biological assays. Additionally, as it did protected human red cells and did not show cytotoxicity, we assume FFL has relative safety to be consumed as a nonconventional edible plant.
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Affiliation(s)
- Suzane Lucas Schechtel
- Dept. of Food Engineering, State Univ. of Ponta Grossa, Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | | | - Jânio Sousa Santos
- Graduation School of Food Science and Technology, State Univ. of Ponta Grossa, Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | - Thiago Mendanha Cruz
- Dept. of Chemistry, State Univ. of Ponta Grossa, Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | - Mariza Boscacci Marques
- Dept. of Chemistry, State Univ. of Ponta Grossa, Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | - Mingchun Wen
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural Univ., Hefei, 230036, P. R. China
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural Univ., Hefei, 230036, P. R. China
| | - Marianna Miranda Furtado
- Faculty of Food Engineering, Dept. of Food Science, Univ. of Campinas, Rua Monteiro Lobato, 80, 13083-862, Campinas, Brazil
| | - Anderson S Sant'Ana
- Faculty of Food Engineering, Dept. of Food Science, Univ. of Campinas, Rua Monteiro Lobato, 80, 13083-862, Campinas, Brazil
| | | | - Luciana Azevedo
- Faculty of Nutrition, Federal Univ. of Alfenas, Rua Gabriel Monteiro da Silva, 714, 37130-000, Alfenas, Brazil
| | | | - Daniel Granato
- Food Processing and Quality, Production Systems Unit - Natural Resources Institute Finland (Luke) - Tietotie 2, Espoo, FI-02150, Finland
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Bagade R, Chaudhary RG, Potbhare A, Mondal A, Desimone M, Dadure K, Mishra R, Juneja H. Microspheres/Custard‐Apples Copper (II) Chelate Polymer: Characterization, Docking, Antioxidant and Antibacterial Assay. ChemistrySelect 2019. [DOI: 10.1002/slct.201901115] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Reena Bagade
- Post Graduate Teaching Department of ChemistryRashtrasant Tukdoji Maharaj Nagpur University Nagpur- 440033 India
| | | | - Ajay Potbhare
- Post Graduate Department of ChemistryS. K. Porwal College Kamptee- 441001 India
| | - Aniruddha Mondal
- CSIR-Central Salt and Marine Chemical Research Institute Bhavnagar- 364002 India
| | - Martin Desimone
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA)Facultad de Farmacia y Bioquimica Junin 956 Piso 3, (1113) Ciudada Autonoma de Buenos Aires Argentina
| | - Kanhaiya Dadure
- Post Graduate Department of ChemistryJ. B. Science College Wardha- 442001 India
| | - Raghvendra Mishra
- International Inter-University Center for Nanoscience and NanotechnologyMahatma University Kottayam- 686560 India
| | - Harjeet Juneja
- Post Graduate Teaching Department of ChemistryRashtrasant Tukdoji Maharaj Nagpur University Nagpur- 440033 India
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Eze FN, Tola AJ, Nwabor OF, Jayeoye TJ. Centella asiatica phenolic extract-mediated bio-fabrication of silver nanoparticles: characterization, reduction of industrially relevant dyes in water and antimicrobial activities against foodborne pathogens. RSC Adv 2019; 9:37957-37970. [PMID: 35541784 PMCID: PMC9075906 DOI: 10.1039/c9ra08618h] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 11/14/2019] [Indexed: 12/28/2022] Open
Abstract
In this article, we have reported an environmentally benign and cost-effective method for the synthesis of monodispersed silver nanoparticles (AgNPs), based on Centella asiatica phenolic extracts (CAPE). The presence of phenolics was confirmed by ultra high-performance liquid chromatography coupled with electrospray ionization quadrupole time of flight mass spectrometry (UHPLC-ESI-qTOF-MS). Colloidal AgNPs synthesized under different concentrations of silver nitrate were monitored with a UV-vis spectrophotometer. Maximum absorption spectra intensity was found to range between 430–440 nm, during a synthesis time of 90 minutes at room temperature. The as-synthesized CAPE-AgNPs, was subjected to various instrumental characterizations such as, transmission electron microscopy (TEM), X-ray powder diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy, dynamic light scattering (DLS) and zeta potential. At the optimized synthesis conditions, spherical and monodispersed CAPE-AgNPs were obtained, with an absorption maximum at 430 nm. The crystalline CAPE-AgNPs had a face-centered-cubic (fcc) crystallographic structure, possessing average sizes estimated from TEM, to be between 20–25 nm diameter, a hydrodynamic diameter from DLS of about 90 nm and a zeta potential value of −28.7 mV. FTIR results validated the presence of phenolics on the surfaces of CAPE-AgNPs. The anti-microbial capacity of CAPE-AgNPs was further demonstrated on different pathogenic bacterial strains with satisfactory performances. As a result of the high surface area to volume ratio of CAPE-AgNPs, it was investigated as a catalyst towards the reduction of prominent environmental pollutants, 4 nitrophenol (4 NP), Congo red (CR) and methylene blue (MB). Pseudo first order kinetics were obtained with rate constants of 3.9 × 10−3 s−1 for 4 NP, 54.7 × 10−3 min−1 for MB and 5.6 × 10−3 s−1 for CR. The catalytic performance and antimicrobial activities of CAPE-AgNPs suggest its potential application in wastewater treatment and control of pathogenic microbes. Illustration of biogenic synthesis of AgNPs based on Centella asiatica phenolic extract and applications.![]()
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Affiliation(s)
| | - Adesola Julius Tola
- Department of Chemistry, Biochemistry and Physics
- Université du Québec à Trois-Rivières (UQTR)
- Trois-Rivières
- Canada
| | | | - Titilope John Jayeoye
- Department of Chemistry/Biochemistry/Molecular Biology
- Alex Ekwueme Federal University, Ndufu Alike-Ikwo
- Abakaliki
- Nigeria
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