Antioxidant and antimicrobial potentials of mycelial extracts
of Hohenbuehelia myxotricha grown
in different liquid culture media

The genus Achillea (Yarrow)is one of the most important medicinal plants. Nowadays, different medicinal functions of yarrow such as spasmolytic, choleretic, treatment of wounds and anti-inflammatory activities, make it as an important medicinal plant. The purpose of this study was to determine the antioxidant activity of aqueous (AAE) and methanol (AME) extracts from the plant Achillea santolinoides L. (A. santolinoides L.) aerial parts in vitro. Quantitative evaluation of polyphenols, flavonoids and tannins were determined using Folin-Ciocalteu reagent, aluminum chloride (AlCl3) and Bate Smith methods, respectively. Antioxidant activity was carried out using ABTS radical scavenging, alkaline DMSO superoxide radical scavenging and cupric reducing antioxidant capacity (CUPRAC). The obtained results showed that the highest content in total phenolic, flavonoids and tannins was found in the AME with values of 210.78±0.001 µg GAE/mg Dw, 21.18±0.025 µg QE/mg DW and198.73±0.014µg TAE/mg DW, respectively. For the in vitro antioxidant activity, AME had the strongest ABTS and DMSO alkaline radical scavenging activity (IC50= 6.74±0.16 µg/mL and 15.13±0.92 µg/mL, respectively) and the CUPRAC reducing with A0.50 of 76.56±2.35 µg/mL. The results of the present study confirm the use of the genus Achillea in the treatment of various diseases as a powerful antioxidant.

“…Antioxidants play a vital role in both food systems as well as in the human body to reduce oxidative processes and harmful effects of ROS (Gulcin, 2020;Krupodorova et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Alkaline DMSO superoxide and radical scavenging, cupric reducing antioxidant capacity (CUPRAC) and polyphenol contents of aqueous and methanol extract from Achilllea santolinoides L. aerial parts

Mehlous

Amira

Benchikh

et al. 2022

“…Interest in natural antioxidants, especially those found in plants, has increased in recent years (Krupodorova et al, 2022). Phenols, flavonoids, and various herbal extracts have been reported as antioxidants, and these natural antioxidants display a wide range of biological effects, including analgesic activity.…”

Section: Introductionmentioning

confidence: 99%

Free Radical Scavenging and Antinociceptive Activities of the Aqueous Extract from Matricaria chamomilla L. Flowers.

Kaoudoune

Benchikh

Abdennour³

et al. 2022

Background: Matricaria chamomilla L. (M. chamomilla) is a famous medicinal plant distributed worldwide. It is widely used in traditional medicine to treat all kinds of diseases, including infections, neuropsychiatric, respiratory, gastrointestinal, and liver disorders. It is also used as a sedative, antispasmodic, antiseptic, and antiemetic. Our aims in this study was thus to quantify the phenolic, flavonoids contents in the flower of this plant, and also to evaluate the in vitro antioxidant potential and the in vivo analgesic activity. Methods: The total phenolic and flavonoid contents of the plant aqueous extract (MCAqE) were estimated using the Folin–Ciocalteu and AlCl3 colorimetric methods, respectively. However, DPPH method was used to evaluate the in vitro antioxidant activity. Analgesic activity was tested by acetic acid induced writhing model in mice. Results: Quantitative determination of total polyphenols and flavonoids revealed that this extract contained 158.41±1.6 mg gallic acid equivalent/g of dry extract and 37.06±0.56 mg quercetin equivalent/g of dry extract, respectively. The antioxidant activity of the plant extract was important (IC50=3.08±0.25 mg/mL). MCAqE extract, at 400 mg/kg, showed analgesic activity (39.60±8.70%) against acetic acid induced pain in mice while the standard reference drug Diclofenac sodium exhibited 90.44±2.80% activity at 10 mg/kg dose.

“…Antioxidants are at the forefront of these mechanisms. Antioxidants (scavenging systems of ROS) can contribute to plant development under stress (Das and Roychoudhury 2014;Guzel et al, 2018;Krupodorova et al, 2022). Antioxidative defense mechanisms are capable of scavenging ROS molecules under steady-state conditions (Akgül et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

The Effect of Biochar Amendment on Physiological and Biochemical Properties and Nutrient Content of Lettuce in Saline Water Irrigation Conditions

Çakmakcı¹,

Çakmakci

Şahin

2022

Salinity often increases osmotic stress, reducing plant water uptake and inhibiting the absorption of nutrients and minerals. This imbalance situation causes physiological, biochemical disorders, and nutrient deficiencies in plants. In this study, the effects of biochar application on the physiological properties, nutrient contents and antioxidant enzyme activities of lettuce were investigated under saline irrigation water conditions. For this purpose, four different biochar doses and different irrigation water salinity levels were applied to the lettuce plant. In the study, biochar application under salt stress conditions decreased the Na, Fe, Zn content and antioxidant enzyme activity of the plant. Leaf relative water content, chlorophyll content (SPAD) and some nutrients (Ca, K, Mg, P, Cu and Mn) also increased. Therefore, biochar applied under salt irrigated water conditions offers good potential to reduce the severity of plant exposure to salinity stress. In addition, the biochar amendment helped the plant uptake of nutrients.