@article {1330, title = {Phytochemical Screening and Antioxidant Activities of the Seedling Extracts from Inca Peanut Plukenetia volubilis}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {January 2021}, pages = {52-58}, type = {Original Article}, chapter = {52}, abstract = {

Background: Plukenetia volubilis L., Inca peanut is an oleaginous plant, widely cultivated as commercially in South East Asia, especially in Thailand. The oil from the seed plant is a greatest interesting a natural source. Objectives: The aims of this study were investigated phytochemical screening, to evaluated the total flavonoids and phenolic compound contents as well as antioxidant activities of seedling extract from P. volubilis. Methods: The dried P. volubilis seedlings of 21 days growing period were extracted by using different solvent including aqueous (ASS), 50\% ethanolic (HESS), and 95\% ethanolic (ESS) extracts. The phytochemical screenings were determined on total phenolic compound (TPC) and flavonoid (TFC) contents. The antioxidation were tested by using 2,2-diphenyl-1-picrylhydrazy radical scavenging (DPPH), 2,2 -azinobis-(3-ethylbenzothiazoline-6-sulphonate) (ABTS+) assay, and ferric reducing antioxidant power (FRAP). Results: The results found that the ESS were significantly highest amount on total phenolic compound (23.0809{\textpm}0.8632 mgGE/gExt ) and flavonoid (466.3839{\textpm}1.5580 mgQE/gExt) contents. In this study, ascorbic acid (IC50 =0.016{\textpm}0.0003 mg/mL) and Trolox (IC50 =0.044{\textpm}0.0008 mg/mL) as standard substances were showed more potent than all of the extracts from P. volubilis seedlings. Surprisingly, the ESS has more potent on free radical scavenging higher than different solvents; DPPH=0.007{\textpm} 0.001 (IC50=mg/mL), ABTS= 1.4065{\textpm} 0.0505 (IC50=mg/mL),and FRAP= 74.4960{\textpm} 2.6067 (mg=TE/gExt). Conclusion: the plant seedling extracts composed with high amount of flavonoids and phenolic compound contents possess valuable to antioxidant activities. The seedling extracts from the plant could apply to supplementary food, cosmetic, pharmaceutical, and horticultural industries. Next study, chemical compositions, the major active compound(s), and biological activities will be clarified.

}, keywords = {antioxidant activity, Flavonoids, Inca peanut seedling, Phenolic compounds, Phytochemical screening, Plukenetia Volubilis}, doi = {10.5530/pj.2021.13.8}, author = {Darunee Puangpronpitag and Puangpaka Tankitjanon and Adisak Sumalee and Ampa Konsue} } @article {1214, title = {Phenolic Compounds and Immunomodulating Activity of Chicory (Cichorium intybus L.) Extract}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {August 2020}, pages = {1104-1107}, type = {Research Article}, chapter = {1104}, abstract = {

Introduction: This research aims to determine the immunomodulating activity of chicory (Cichorium intybus L.) herb extract and to evaluate the prospects of development of the medicine based on it. Methods: Object of the research was dry chicory extract obtained from herb (aerial part) of a wild plant. The chemical composition of the extract was determined by HPLC-MS method. Its immunomodulating action has been explored in vivo experiments involving intact animals, as well as immunosuppressed animals, treated with azathioprine cytostatic agent. Chicory extract was administered at a dose of 30 mg/kg per os 1 time per day for 14 days. As a reference drug, Immunal (Lec Pharma, Slovenia) was used. Chicory extract action on the state of cell immune component was evaluated in delayed hypersensitivity reaction. The humoral immunity condition was evaluated by the count of antibody-forming cells determined by the local hemolysis method. The state of the macrophage component of the immune response was evaluated in the phagocytosis reaction of peritoneal macrophages in relation to colloid liquid ink particles. Results: Dry chicory extract is capable to reduce the suppressive azathioprine effect on the cell-mediated immune response, antibody response, and phagocytosis with macrophages; it does not change the immunity indicators in intact animals. Conclusion: Dry chicory extract contains phenolic complex of biologically active substances, namely oxycoumarins, hydroxycinnamic acids, and flavonoids. Dry chicory extract is an effective immunocorrecting agent; it should be recommended for further study and application aiming for the prevention and treatment of immunodeficiency states.

}, keywords = {Chicory herb, Dry extract, Immunomodulating activity, Phenolic compounds}, doi = {10.5530/pj.2020.12.156}, author = {Saybel OL and Rendyuk TD and Dargaeva TD and Nikolaev SM and Khobrakova VB} } @article {1040, title = {Antimicrobial, Cyto and Genotoxic Activities of Equisetum hyemale}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {November 2019}, pages = {1563-1571}, type = {Research Article}, chapter = {1563}, abstract = {

The popular use of natural products has great benefits for the health of the human population. In this study we highlight Equisetum hyemale, belonging to the phylum Sphenophyta and the family Equisetaceae. Popularly, the stems of this plant are used for their diuretic, digestive, anti-anemic, and anti-inflammatory properties. Given this context, and the fact that the growth of antimicrobial resistance is a serious problem for global public health, this plant could be used as an alternative, to increase our therapeutic arsenal. Therefore, it is important to more clearly elucidate the complex structures present in plants, because these substances are mainly responsible for their beneficial and/or toxic effects. Thus, the objective of this study was evaluate the antimicrobial activity, cytotoxic and genotoxic potential of the phenolic compounds separately. The substances luteolin, ferulic acid and coumarin were identified at high concentrations by ultra-high performance chromatography-electrospray ionization-mass spectrometry (UPLC-ESI-MS). Antimicrobial activity was elucidated through microdilution in broth; the phenolic compounds were able to inhibit the visible growth of the standard bacterial strains at low concentrations. Cytotoxicity was evaluated by MTT and genotoxicity was analysed through cellular damage using a Comet assay; the results showed that it did not present cytoxicity or genotoxicity at the corresponding concentrations. With this, we suggest that E. hyemale may be an alternative for the treatment of infections by microorganisms that are resistant to synthetic drugs.

}, keywords = {Antimicrobial activity, Cytotoxicity, Equisetum hyemale, Phenolic compounds}, doi = {10.5530/pj.2019.11.239}, author = {Camilla Filippi dos Santos Alves and Pauline Cordenonsi Bonez and Marcia de Souza Ebling and Camila Casagrande and Litiane Freitas and Carolina Dolwitsch and Fernanda Pires and Michele Rorato Sagrillo and Gerson Fernandes de Brum and Marli Matiko Anraku de Campos and Roberto Christ Vianna Santos} } @article {888, title = {Chemical Composition and Antioxidant Effect of Mentha rotundifolia Extracts}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {May 2019}, pages = {521-526}, type = {Original Article}, chapter = {521}, abstract = {

Aim: This report was aimed to investigate both the chemical composition and the antioxidant activity of two extracts from Mentha rotundifolia aerial parts. Methods: Aqueous and acetonic extracts were obtained by decoction and Soxhlet apparatus, respectively. Total polyphenols contents were determined using Folin- Ciocalteu reagent whereas flavonoids were evaluated by AlCl3 method. LC-MS/MS method was carried out to reveal the phytochemical composition of extracts. Some tests were used to evaluate the in vitro antioxidant activity of extracts such as DPPH free radical scavenging assay, ABTS+ radical cation decolorization assay, OH{\textbullet} radical scavenging assay, ferrous ion chelating, reducing power and β-caroten/linoleic acid bleaching assay. Results: The results showed that the aqueous extract was richer on polyphenols and flavonoids comparing to the acetonic extract. The analysis by LC-MS/MS allowed to identify many phenolic compounds in extracts, predominated by rosmarinic acid. In addition, the extracts were found to possess a significant antioxidant activity. Conclusion: Accordingly, it can be concluded that M. rotundifolia is quite rich in phenolic compounds and has a good antioxidant activity.

}, keywords = {antioxidant activity, Extraction, LC-MS/MS, Mentha rotundifolia, Phenolic compounds}, doi = {10.5530/pj.2019.11.83}, author = {Ferdjioui Siham and Belhattab Rachid and Raed M Al-Zoubi} } @article {763, title = {Antioxidant Capacity and Cytotoxicity of the Aqueous Extract of Myrcia guianensis (Aubl.) DC}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {November 2018}, pages = {s135-s140}, type = {Original Article}, chapter = {s135}, abstract = {

Introduction: Ethnobotanical studies report that Myrcia guianensis (Myrtaceae), belonging to a group of plants known as pedr\á-ume-ca\á or insulin plant, is used as a tea to treat various diseases, including diabetes, a metabolic disorder that leads to the constant production of free radicals. The objective of this work was to determine the antioxidant capacity and the cytotoxicity of the AEMg. Methods: The content of phenolic compounds in AEMg was determined by colorimetric assays. In vitro tests of the antioxidant capacity of AEMg, in the sequestration of DPPH radicals, in \β-carotene bleaching, in the FRAP, as well as in human fibroblast cells of the MRC-5 lineage, were performed. The cytotoxic activity of AEMg was evaluated in assays with eukaryotic cells from yeast Saccharomyces cerevisiae and in PBMC. Results: The results showed that the AEMg is rich in phenolic compounds, presenting high antioxidant potential in all the tests carried out, including in human fibroblast cells of the MRC-5 lineage, besides not being toxic to eukaryotic cells. Conclusion: The AEMg, rich in antioxidant compounds and no toxicity, can be used as source of natural antioxidant in the treatment of metabolic diseases to combat free radicals.

}, keywords = {antioxidant activity, Myrtaceae, Oxidative stress, Pedra-ume-ca{\'a}, Phenolic compounds}, doi = {10.5530/pj.2018.6s.25}, author = {Regiane Sablina Almeida Bernardes and Sandra Layse Ferreira Sarrazin and Flaviana Alves dos Santos and Moacyr Jesus Barreto de Melo R{\^e}go and Maira Galdino da Rocha Pitta and Marina Ferraz Cordeiro and Patr{\'\i}cia Danielle Oliveira de Almeida and Ricardo Bezerra de Oliveira and Leoneide {\'E}rica Maduro Bouillet and Jos{\'e} Guilherme Soares Maia and Rosa Helena Veras Mour{\~a}o} }