scholarly journals EFFECT OF SALICYLLC ACID FOLIAR APPLICATION ON PHYTOCHEMICAL COMPOSITION, ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF SILYBUM MARIANUM

2021 ◽  
Vol 52 (1) ◽  
pp. 63-69
Author(s):  
Z. Mahmoudi Rad ◽  
H. Nourafcan ◽  
N. Mohebalipour ◽  
A. Assadi ◽  
S. Jamshidi
Keyword(s):  
Antimicrobial Activity ◽  
Salicylic Acid ◽  
Active Component ◽  
Foliar Application ◽  
Sensitive Cell ◽  
Silybum Marianum ◽  
Phytochemical Composition ◽  
Cell Death Pathway ◽  
Edible Seeds ◽  
Antioxidant And Antimicrobial Activity

Silybum marianum (L.), is an important herbal medicine. Silymarin, the active component obtained from its edible seeds, is known for its antioxidant and antimicrobial activity. This  research was aimed to study the effect of foliar application of salicylic acid (SA) at four concentrations of 1250, 2500, 5000 and 10000 μmol l-1 on the improvement of phytochemical composition, antioxidant and antimicrobial activity. Significant increase was found in the content of silibinin, silybin A and silybin B in plants treated with increasing concentrations of salicylic acid. The antioxidant activity was improved with increasing the SA concentration reaching the highest amount under 5000 μmol l-1 SA treatment (p < 0.05). Irrespective to the bacterial strain, an increasing pattern in the amount of antibacterial activity was found by increasing SA concentration. The study suggest that treatments with medium doses of SA could be a promising way to improve the health beneficial flavonolignans compounds of Silybum marianum resulting in a higher antioxidant and antimicrobial activity. Nevertheless, it should be considered that the responses to SA are highly concentration dependent and application of higher concentrations can have an adverse effect by triggering a hyper sensitive cell death pathway.

scholarly journals ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF BIOACTIVE CHITOSAN FILMS

2022 ◽  
Vol 52 (1) ◽  
pp. 61-65
Author(s):  
Maria Belen Vignola ◽  
Matias Alejandro Raspo ◽  
Cesar Gerardo Gómez ◽  
Alfonsina Ester Andreatta
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Salicylic Acid ◽  
Gallic Acid ◽  
Tween 80 ◽  
Food Preservation ◽  
The Other ◽  
Food Packages ◽  
Chitosan Films ◽  
Antioxidant And Antimicrobial Activity

Interest in the development of films for food preservation is increasing due to the improvement achieved in the food preservation time with the advent of new packaging technologies. Chitosan is a widely used biopolymer produced from the deacetylation of chitin, which has a good capacity to form suitable films as food packages. On the other hand, bioactive compounds such as gallic acid and salicylic acid act as inhibitors of the oxidant activity of free radicals and delay the decomposition of food. In this sense, the preparation of chitosan films modified with the mixture incorporation of salicylic acid/sorbitol or gallic acid/Tween 80 was proposed, using sorbitol or Tween 80 as plasticizers. Both films (chitosan/gallic acid/Tween 80 and chitosan/salicylic acid/sorbitol) showed a good antioxidant capacity in while the chitosan/gallic acid/Tween 80 film evidenced its antimicrobial activity against Escherichia coli ATCC 25922 causing a diminution of unit forming colony

scholarly journals Kaolin and salicylic acid foliar application modulate yield, quality and phytochemical composition of olive pulp and oil from rainfed trees

2018 ◽  
Vol 237 ◽  
pp. 176-183 ◽  
Author(s):  
Cátia Brito ◽  
Lia-Tânia Dinis ◽  
Ermelinda Silva ◽  
Alexandre Gonçalves ◽  
Carlos Matos ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Foliar Application ◽  
Phytochemical Composition ◽  
Yield Quality ◽  
Olive Pulp

scholarly journals Vitex negundo Linn.: phytochemical composition, nutritional analysis, and antioxidant and antimicrobial activity

2020 ◽  
Vol 66 (4) ◽  
pp. 1 ◽  
Author(s):  
Niranjan Koirala ◽  
Chiran Dhakal ◽  
Nabin Narayan Munankarmi ◽  
Shinawar Waseem Ali ◽  
Aneela Hameed ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Vitex Negundo ◽  
Phytochemical Composition ◽  
Nutritional Analysis ◽  
Antioxidant And Antimicrobial Activity

Antioxidant and antimicrobial activity of willow herb (Epilobium angustifolium L.)

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
I Kosalec ◽  
M Zovko ◽  
K Sankovic ◽  
D Kremer ◽  
S Pepeljnjak
Keyword(s):  
Antimicrobial Activity ◽  
Epilobium Angustifolium ◽  
Antioxidant And Antimicrobial Activity

The Comparative Study of Equisetum pratense, E. sylvaticum, E. telmateia: Accumulation of Silicon, Antioxidant and Antimicrobial Screening

2019 ◽  
Vol 70 (7) ◽  
pp. 2519-2523
Author(s):  
Denisa Batir Marin ◽  
Oana Cioanca ◽  
Mihai Apostu ◽  
Cristina Gabriela Tuchilus ◽  
Cornelia Mircea ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Methanol Extract ◽  
Previous Treatment ◽  
Total Phenolic ◽  
Quantitative Chemical Analysis ◽  
Qualitative And Quantitative ◽  
Antioxidant And Antimicrobial Activity ◽  
The Comparative Study

The objective of the current study is represented by the determination of silica and a phytochemical screening of phenolic derivates of some Equisetum species. The antioxidant and antimicrobial activity for Equisetum pratense Ehrh.,, Equisetum sylvaticum L. and Equisetum telmateia Ehrh. (sin. Equisetum maximum Lam.) were also investigated. The concentration of silicon (Si) in plants was determined by the spectrophotometric method using previous treatment with NaOH 50% both for the stem and the nodal branches [1]. Results obtained varied from 95.12 to 162.10 SiO2 mg/g dry plant which represents 4.44% to 7.58% Si/100g dry sample. Two types of total extracts were obtained using different solvents and were subjected to qualitative and quantitative chemical analysis considering total phenolic content [2]. The highest concentration of investigated compounds was found in the methanolic extract, E. sylvaticum, 196.5mg/g dry sample. Antioxidant activity was monitored spectrophotometrically and expressed in terms of IC50 (�g/mL) [3]. Values gathered ranged from 261.7 to 429.5 �g/mL. The highest capacity to neutralized DPPH radicals was found in E. sylvaticum. In vitro antimicrobial activity was determined using difusimetric method [4]. Testing was performed on four microorganisms: three strains of bacteria and one species of fungi. Different effects were noticed against the bacteria, furthermore the methanol extract appeared to be most efficient. All extracts showed significand antimicrobial activity against Staphylococcus aureus (ATCC 25923) and Candida albicans (ATCC 90028) and weak to no activity against Pseudomonas aeruginosa (ATCC 27853) and Escherichia coli (ATCC 25922).

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