scholarly journals Antibacterial activity and bioactive compounds of 50% hydroethanolic extract of Alpinia zerumbet (Pers.) B.L. Burtt & R.M. Sm.

2019 ◽  
Vol 9 (5) ◽  
pp. 204 ◽  
Author(s):  
Natthida Weerapreeyakul ◽  
Ratree Tavichakorntrakool ◽  
Aroonlug Lulitanond ◽  
Arunnee Sangka ◽  
Seksit Sungkeeree
Keyword(s):  
Antibacterial Activity ◽  
Bioactive Compounds ◽  
Hydroethanolic Extract ◽  
Alpinia Zerumbet

scholarly journals Bioactive Compounds, Antioxidant, and Antibacterial Properties of Lonicera caerulea Berries: Evaluation of 11 Cultivars

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 624
Author(s):  
Laima Česonienė ◽  
Juozas Labokas ◽  
Ina Jasutienė ◽  
Antanas Šarkinas ◽  
Vilma Kaškonienė ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Vitamin C ◽  
Organic Acids ◽  
Bioactive Compounds ◽  
Total Phenolic ◽  
Aqueous Extracts ◽  
Lonicera Caerulea ◽  
Phenolic Contents ◽  
Total Phenolic Contents ◽  
Ethanolic Extracts

The aim of the study was to evaluate 11 cultivars of blue honeysuckle (Lonicera caerulea L.) for bioactive compounds, antioxidant capacity, and the antibacterial activity of berries. Total phenolic contents (TPCs) and total anthocyanin contents (TACs) were established by using ethanolic extracts. For contents of organic acids and saccharides, aqueous extracts were used, and vitamin C was determined by using oxalic acid solution. DPPH• radical scavenging capacity was evaluated by using ethanolic extracts; antibacterial activity was assessed by using both ethanolic and aqueous extracts. The TPC varied from 364.02 ± 0.41 mg/100 g in ‘Vostorg’ to 784.5 ± 0.3 mg/100 g in ‘Obilnaja’, and TAC ranged from 277.8 ± 1.1 mg/100 g in ‘Čelnočnaja’ to 394.1 ± 8.4 mg/100 g in ‘Nimfa’. Anthocyanins comprised 53.8% of total phenolic contents on average. Among organic acids, citric acid was predominant, averaging 769.41 ± 5.34 mg/100 g, with malic and quinic acids amounting to 289.90 ± 2.64 and 45.00 ± 0.37 mg/100 g on average, respectively. Contents of vitamin C were 34.26 ± 0.25 mg/100 g on average. Organic acids were most effective in the inhibition of both Gram-positive and Gram-negative bacteria tested. In conclusion, berries of L. caerulea are beneficial not only for fresh consumption, but also as a raw material or ingredients of foods with high health-promoting value.

scholarly journals Phytochemical Screening, Polyphenols Content, Antioxidant Power, and Antibacterial Activity of Herniaria hirsuta from Morocco

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Kenza Ammor ◽  
Dalila Bousta ◽  
Sanae Jennan ◽  
Bahia Bennani ◽  
Abdellah Chaqroune ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Antibacterial Activities ◽  
Diffusion Method ◽  
Antioxidant Power ◽  
Negative Effect ◽  
Hydroethanolic Extract

The aim of this study is to investigate in vitro antioxidant and antibacterial activities of the aqueous and hydroethanolic extracts for aerial parts of Herniaria hirsuta. Extracts were screened for their possible antioxidant activities by three tests: DPPH free radical-scavenging, reducing power, and molybdenum systems. The screening of antibacterial activity of extracts was individually evaluated against sixteen bacteria species using a disc diffusion method. Flavonoids, total phenols, and tannins content were performed for both extracts. It shows higher content in the hydroethanolic extract. The hydroethanolic extract showed a significant antioxidant activity for the three methods studies to the aqueous extract, but nonsignificant results compared to the reference (BHT). However, both extracts have negative effect on the strains studies for the antibacterial activity.

scholarly journals Isolation of diverse bioactive compounds from Euphorbia balsamifera: Cytotoxicity and antibacterial activity studies

2021 ◽  
Vol 28 (1) ◽  
pp. 417-426
Author(s):  
Salha M Aljubiri ◽  
Samir A. Mahgoub ◽  
Abdulrahman I. Almansour ◽  
Mohamed Shaaban ◽  
Kamel H. Shaker
Keyword(s):  
Antibacterial Activity ◽  
Bioactive Compounds

scholarly journals Evaluation of acute toxicity, antibacterial activity, and mode of action of the hydroethanolic extract of Piper umbellatum L

2014 ◽  
Vol 151 (1) ◽  
pp. 137-143 ◽  
Author(s):  
Iberê Ferreira da Silva ◽  
Ruberlei Godinho de Oliveira ◽  
Ilsamar Mendes Soares ◽  
Tarso da Costa Alvim ◽  
Sérgio Donizeti Ascêncio ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Acute Toxicity ◽  
Mode Of Action ◽  
Hydroethanolic Extract

scholarly journals Chemical compositions, antioxidant and antimicrobial activities of Tubu (Pycnarrhena longifolia) leaves used as ingredient in traditional functional foods

Food Research ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 823-830
Author(s):  
N.K. Mohammed ◽  
B.J. Muhialdin ◽  
N.S. Masri ◽  
R. Sukor ◽  
F. Abd-El Aziem ◽  
...  
Keyword(s):  
Amino Acids ◽  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Bioactive Compounds ◽  
Sugar Content ◽  
Antimicrobial Activities ◽  
Diffusion Method ◽  
Total Phenolic ◽  
Chemical Compositions ◽  
Food Ingredient

Tubu (Pycnarrhena longifolia) leaves are known as food enhancer and medicinal plant by several ethnics of Malaysia. The aims of the study were to determine the tubu leaves composition and biological activity including antioxidant and antibacterial. The mineral, sugar and amino acids were determined using HPLC, and bioactive compounds using GCMS. The antioxidant activity was evaluated by DPPH assay, and the antibacterial activity screened by disc diffusion method. The dry leaf compositions were 6.6% moisture, 11.6% ash, 7.0% crude protein, 15.7% crude fiber, 12.1% crude fat and carbohydrate 47%. A total of seven minerals were present in the methanol extract and the highest content was for iron (159.5 mg) and calcium (16.8 mg). The sugar profile showed high sugar content for glucose, sucrose, rhamnose, and fructose which was 8, 13, 7, and 20 mg/g, respectively. A total of sixteen amino acids was present in the tubu leaf extract, and seven bioactive compounds were identified by GC-MS/MS. The antioxidant activity was 87%, total phenolic compound content was 26.49 mg/mL and total flavonoid content was 13.39 mg/mL. Tubu leaves showed antibacterial activity towards Salmonella enterica serovar Typhimurium, Escherichia coli, Bacillus cereus and Staphylococcus aureus. This study showed that tubu leaves had rich sources of amino acids, minerals, sugars and bioactive compounds, potential to be a functional food ingredient.

scholarly journals Metabolic profiling and antibacterial activity of Eryngium pristis Cham. & Schltdl. - prospecting for its use in the treatment of bacterial infections

2021 ◽  
Vol 5 (1) ◽  
pp. 020-028
Author(s):  
Fernandes Laura Silva ◽  
da Costa Ygor Ferreira Garcia ◽  
de Bessa Martha Eunice ◽  
Ferreira Adriana Lucia Pires ◽  
do Amaral Corrêa José Otávio ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Bioactive Compounds ◽  
Metabolic Profile ◽  
Bacterial Infections ◽  
Ethanolic Extract ◽  
Multidrug Resistant ◽  
Gas Chromatography Mass Spectrometry ◽  
Resistant Bacteria ◽  
Bacterial Strains ◽  
New Antibiotics

Morbidity and mortality of the infected patients by multidrug-resistant bacteria have increased, emphasizing the urgency of fight for the discovery of new innovative antibiotics. In this sense, natural products emerge as valuable sources of bioactive compounds. Among the biodiversity, Eryngium pristis Cham. & Schltdl. (Apiaceae Lindl.) is traditionally used to treat thrush and ulcers of throat and mouth, as diuretic and emmenagogue, but scarcely known as an antimicrobial agent. With this context in mind, the goals of this study were to investigate the metabolic profile and the antibacterial activity of ethanolic extract (EE-Ep) and hexane (HF-Ep), dichloromethane (DF-Ep), ethyl acetate (EAF-Ep) and butanol (BF-Ep) fractions from E. pristis leaves. Gas Chromatography-Mass Spectrometry (GC-MS) was performed to stablish the metabolic profile and revealed the presence of 12 and 14 compounds in EAF-Ep and HF-Ep, respectively. β-selinene, spathulenol, globulol, 2-methoxy-4-vinylphenol, α-amyrin, β-amyrin, and lupeol derivative were some of phytochemicals identified. The antibacterial activity was determined by Minimal Inhibitory Concentration (MIC) using the broth micro-dilution against eight ATCC® and five methicillin-resistant Staphylococcus aureus (MRSA) clinical strains. HF-Ep was the most effective (MIC ≤ 5,000 µg/µL), being active against the largest part of tested Gram-positive and Gram-negative bacterial strains, including MRSA, with exception of Escherichia coli (ATCC 25922) and Pseudomonas aeruginosa (ATCC 9027) and (ATCC 27853). These results suggest that E. pristis is a natural source of bioactive compounds for the search of new antibiotics which can be an interesting therapeutic approach to recover patients mainly infected by MRSA strains.

scholarly journals Identification of Antibacterial Activity with Bioactive Compounds from Selected Marine Sponges

2020 ◽  
Vol 12 (3) ◽  
pp. 493-502
Author(s):  
Noor Azlina Kamaruding ◽  
Noraznawati Ismail ◽  
Noormaizura Sokry
Keyword(s):  
Antibacterial Activity ◽  
Bioactive Compounds ◽  
Marine Sponges
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