Chemical characterization and antioxidant activities of Morus alba var. nigra fruits

2019 ◽  
Vol 253 ◽  
pp. 120-127 ◽  
Author(s):  
Maryam Farahani ◽  
Hossein Salehi-Arjmand ◽  
Ali Khadivi ◽  
Morteza Akramian
Keyword(s):  
Antioxidant Activities ◽  
Chemical Characterization ◽  
Morus Alba

scholarly journals Chemical characterization and antioxidative properties of Polish variety of Morus alba L. leaf aqueous extracts from the laboratory and pilot-scale processes

2013 ◽  
Vol 04 (05) ◽  
pp. 141-147 ◽  
Author(s):  
Ewa Flaczyk ◽  
Joanna Kobus-Cisowska ◽  
Monica Przeor ◽  
Jozef Korczak ◽  
Marian Remiszewski ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Pilot Scale ◽  
Morus Alba ◽  
Aqueous Extracts ◽  
Antioxidative Properties ◽  
Polish Variety

scholarly journals Chemical characterization and antioxidant activities of oligomeric and polymeric procyanidin fractions from grape seeds

2008 ◽  
Vol 108 (2) ◽  
pp. 519-532 ◽  
Author(s):  
Isabel Spranger ◽  
Baoshan Sun ◽  
Ana M. Mateus ◽  
Vítor de Freitas ◽  
Jorge M. Ricardo-da-Silva
Keyword(s):  
Antioxidant Activities ◽  
Chemical Characterization ◽  
Grape Seeds

Chemical characterization, antioxidant and cytotoxic activities of the methanolic extract of Hymenocrater longiflorus grown in Iraq

2015 ◽  
Vol 70 (9-10) ◽  
pp. 227-235 ◽  
Author(s):  
Rafal S.A. Al-Anee ◽  
Ghassan M. Sulaiman ◽  
Khulood W. Al-Sammarrae ◽  
Giuliana Napolitano ◽  
Renzo Bagnati ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Chemical Characterization ◽  
Cytotoxic Activities ◽  
Dependent Manner ◽  
Histone H2ax ◽  
Northern Iraq ◽  
Polyphenolic Composition ◽  
Diphenyltetrazolium Bromide

Abstract Hymenocrater longiflorus was collected from northern Iraq, and the chemical composition and antioxidant and cytotoxic activities of this plant were investigated. Ten compounds detected by HPLC-ESI/MS were identified as flavonoids and phenolic acids. The free radical scavenging activity of the 70% methanol extract was evaluated using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The antioxidant activities of the extract may be attributed to its polyphenolic composition. The cytotoxicity of the plant extract against the osteosarcoma (U2OS) cell line was assessed with the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. The extract significantly reduced the viability of cells in a concentration- and time-dependent manner. Cells were arrested during the S-phase of the cell cycle, and DNA damage was revealed by antibodies against histone H2AX. The apoptotic features of cell shrinkage and decrease in cell size were also observed. Western blot analysis revealed cleavage of poly (ADP-ribose)-polymerase 1 (PARP-1), in addition to increases in the proteins p53, p21, and γ-H2AX. Collectively, our findings demonstrate that the H. longiflorus extract is highly cytotoxic to U2OS cells, most likely due to its polyphenolic composition.

scholarly journals Hepatoprotective and Antioxidant Activities of Oil from Baru Almonds (Dipteryx alata Vog.) in a Preclinical Model of Lipotoxicity and Dyslipidemia

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Mayara Áthina Reis ◽  
Rômulo Dias Novaes ◽  
Sueli Regina Baggio ◽  
André Luiz Machado Viana ◽  
Bruno Cesar Correa Salles ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Activities ◽  
Liver Steatosis ◽  
Chemical Characterization ◽  
High Energy ◽  
Preclinical Model ◽  
Histopathological Analysis ◽  
Popular Medicine ◽  
Male Wistar Rats ◽  
Dipteryx Alata

The oil obtained from baru (Dipteryx alata Vog.) almonds exhibits high energy value and is reported in popular medicine for the treatment of rheumatic diseases and reproductive disturbances. Although baru oil is used in domestic cuisine, the chemical characterization of this oil and its effects on lipid metabolism are still poorly understood. Therefore, this study evaluated the fatty acid (FA) profile and the effects of baru oil on liver and aorta in a murine model of dyslipidemia. The chromatographic profile of baru oil showed high levels of unsaturated FAs, especially oleic acid. Saturated FAs, such as palmitic and lignoceric acids, were found in lower amounts. Hypercholesterolemia was induced in male Wistar rats by daily administration of a lipid emulsion by gavage for 15 weeks. Biochemical and histopathological analysis were performed on serum, aorta, and liver. The results demonstrated that animals developed marked hypercholesterolemia, liver steatosis, and increased lipid peroxidation in the aorta. Treatment with baru oil attenuated lipid peroxidation and drastically reduced liver damage, especially ballooning degeneration and steatosis. By restricting vascular and hepatic injury, this oil showed potential applicability as a functional food, reinforcing its use in popular medicine and domestic cuisine.

scholarly journals The Study of Steaming Durations and Temperatures on the Chemical Characterization, Neuroprotective, and Antioxidant Activities of Panax notoginseng

2022 ◽  
Vol 2022 ◽  
pp. 1-13
Author(s):  
Didi Ma ◽  
Jue Wang ◽  
Guo Yin ◽  
Lijun Wang ◽  
Yibao Jin ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Chemical Characterization ◽  
Panax Notoginseng ◽  
Absorption Capacity ◽  
Traditional Chinese Medicines ◽  
Chinese Medicines ◽  
Hplc Fingerprint ◽  
Relationship Analysis ◽  
Antioxidant Effects ◽  
Spectrum Effect

Panax notoginseng (PN) is one of the most valuable traditional Chinese medicines and has extensive pharmacological effects. Recent studies demonstrated that PN exhibited pharmacological effect related to Alzheimer’s disease (AD). However, whether steaming process can boost its anti-AD activity is still unexplored. To fill this gap, effects of steaming durations and temperatures on the chemical characterization, neuroprotective and antioxidant activities of PN were systematically investigated in this study. HPLC fingerprint coupled with quantitative analysis demonstrated striking conversion of original saponins to less polar ones with the increase in the steaming time and temperature. In the viewpoint of anti-AD activity on neuroprotective and antioxidant effects, several steamed PN samples (110°C-6/8/10 h, 120°C ‐4/6 h samples) displayed a significant increase both in cell viability and oxygen radical absorption capacity (ORAC) values compared with the no steamed one ( P < 0.01 or P < 0.005 ). Steaming temperature had the greater impact on the change of chemical composition and anti-AD activity of PN. Moreover, the spectrum-effect relationship analysis revealed that the transformed saponins were partially responsible for the increased neuroprotective and antioxidant effects of steamed PN. Therefore, steamed PN could be used as a potential crude drug for prevention and treatment of AD.

scholarly journals Chemical Characterization, Antibacterial and Antioxidant Activities of Essential Oils of <i>Mentha viridis</i> L. and <i>Mentha pulegium</i> L. (L)

2015 ◽  
Vol 06 (05) ◽  
pp. 666-675 ◽  
Author(s):  
Lucilene Fernandes Silva ◽  
Maria das Graças Cardoso ◽  
Luís Roberto Batista ◽  
Marcos de Souza Gomes ◽  
Leonardo Milani Avelar Rodrigues ◽  
...  
Keyword(s):  
Essential Oils ◽  
Antioxidant Activities ◽  
Chemical Characterization ◽  
Mentha Pulegium

scholarly journals Morus alba L. and Morus nigra L. Leaves as a Promising Food Source of Phenolic Compounds with Antioxidant Activity

2021 ◽  
Author(s):  
Milena Polumackanycz ◽  
Marek Wesolowski ◽  
Agnieszka Viapiana
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Chemical Characterization ◽  
Morus Alba ◽  
Mulberry Leaves ◽  
Morus Nigra ◽  
Antioxidant Agents ◽  
White Mulberry ◽  
Bioactive Potential ◽  
Promising Source

AbstractBioactivity of mulberry has been widely described, but mostly related to its fruits, while studies with leaves are scarce. Herein, in this study leaves of two mulberry species (Morus alba L. and Morus nigra L.) were characterized, compared, and evaluated in terms of their phenolic composition and antioxidant activity. Aiming to valorize mulberry leaves extracts which can be included in modern diet four different extracts (infusions, decoctions, tinctures and hydromethanolic) were examined. The chemical characterization was done by quantifying total phenolics (TPC), flavonoids (TFC) and phenolic acids (TPAC) content, L( +)ascorbic acid (ASA) and individual phenolic compounds in the extracts by HPLC technique. Moreover, DPPH and FRAP assays were used to assess the antioxidant activity of white and black mulberry leaves. Findings of these studies revealed that black mulberry leaves were richer in TFC and TPAC, while white mulberry leaves contained higher levels of individual phenolic compounds in water extracts. Gallic acid was found in the highest concentrations in two mulberry leave extracts. Correlation analysis showed strong relationships between antioxidant activity and TPC and TFC. This fact suggests the crucial role of phenolic compounds as antioxidant agents in white and black mulberry leaves. The results obtained in this study demonstrate that leaves of both white and black mulberry can be used as a valuable source of phenolic compounds with bioactive potential, which can be applied in the food sector, as foods and as promising source of natural ingredients.

scholarly journals Identification of a Proanthocyanidin from Litchi Chinensis Sonn. Root with Anti-Tyrosinase and Antioxidant Activity

Biomolecules ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1347
Author(s):  
Matthew Saive ◽  
Manon Genva ◽  
Thibaut Istasse ◽  
Michel Frederich ◽  
Chloé Maes ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Biological Activities ◽  
Chemical Characterization ◽  
2D Nmr ◽  
Ethnobotanical Study ◽  
Traditional Use ◽  
Litchi Chinensis ◽  
Isolated Compound ◽  
First Time

This work follows an ethnobotanical study that took place in the island of Mayotte (France), which pointed out the potential properties of Litchi chinensis Sonn. roots when used to enhance skin health and appearance. Through in vitro testing of a crude methanolic extract, high anti-tyrosinase (skin whitening effect) and antioxidant activities (skin soothing effect) could be measured. HPLC successive bio-guided fractionation steps allowed the purification of one of the compounds responsible for the biological activities. The isolated compound was characterized by UV, IR, MS and 2D-NMR, revealing, for the first time in Litchi chinensis Sonn. roots, an A-type proanthocyanidin and thus revealing a consensus among the traditional use shown by the ethnobotanical study, in vitro biological activities and chemical characterization.

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