Wild raspberry: Antioxidant fruits from Eastern Himalaya

Characterization of Firmiana colorata (Roxb.) leaf extract and its silver nanoparticles reveal their antioxidative, anti-microbial, and anti-inflammatory properties

Nanotechnology is the integrative science in the field of physics, chemistry and biology. For the synthesis of silver nanoparticles, a simple approach was applied using Firmiana colorata (Roxb.) aqueous leaf extract. During the synthesis of this silver nanoparticle, the solution color changes from green to deep brown due to the reduction of silver. The phytocompounds present in the Firmiana colorata (Roxb.) leaf extract acts as a reducing as well as a capping agent. Identifying the presence of bioactive compounds responsible for the reduction of silver was extensively characterized by UV-Vis spectrophotometer, FTIR, SEM, and EDX. Moreover, to know the efficacy of the silver nanoparticles (AgNps) antioxidant and antimicrobial studies were evaluated against the human pathogenic bacteria. Furthermore, GC-MS analysis of the leaf extract of Firmiana colorata has been done followed by the in-silico molecular docking against the Anti-inflammatory and oxidative protein. Here within this study, a comparative evaluation was done among the Firmiana colorata (Roxb.) leaf extract and the synthesized silver nanoparticles. Results indicate that ethnomedicinally lesser known Firmiana colorata (Roxb.) and AgNps have the potency to act as anti-inflammatory, antioxidative, and antimicrobial agents.

Natural Formulations Provide Antioxidant Complement to Hyaluronic Acid-Based Topical Applications Used in Wound Healing

Hyaluronic acid (HA) promotes wound healing, and, accordingly, formulations based on HA have been widely used in regenerative medicine. In addition, naturally derived compounds, e.g., plant-based extracts and vitamin E, have exhibited antioxidant activity. In this study, a formulation containing hyaluronic acid, vitamin E, raspberry extract, and green tea was developed for potential topical applications, targeting wound healing. Rheological analysis was performed along with antioxidant and biological studies. The rheological characterization showed that the HA-based formulation is a thixotropic platform and possesses higher mechanical properties than the control formulation. To evaluate the wound healing potential of the formulation, an in vitro “wound healing” assay was carried out using human derived fibroblasts (HDF) with a cell-free gap on the tissue culture dish. The formulation showed better wound healing ability than the control formulation.

Antioxidant and antithrombotic properties of Dendropanax morbifera Léveille (Araliaceae) and its ferments produced by fermentation processing

The present study investigates and evaluates the antioxidant and antithrombotic effects of Dendropanax morbifera Léveille (Araliaceae) extracts (DME) and its ferment (FDME). Antioxidant activities were improved by FDME treatment, especially 66.74% of hydroxyl radical scavenging activity was observed at 100 μg of FDME treatment. In vitro antithrombotic activity was also improved by accelerated fibrinolysis and blood clot degradation as well as prolonged prothrombin time. Similar to those results, in vivo experiment also showed that the formation of thrombus was alleviated and paralysis or death due to thromboembolism was also prevented to some extent. PRACTICAL APPLICATIONS: A bioprocessing technology, fermentation is known to enhance nutritional qualities which has beneficial effects on health by improving antioxidant activity, lipid levels, and antithrombotic activities. DME, healthy food source has been known to have a potential for improving blood circulation improvement. The present study provides beneficial information on the potential and excellence of the antithrombotic efficacy of DME and FDME. The present results elucidate the antithrombotic activities of DME and FDME, which is useful in the development of new food materials for cardiovascular health and new antithrombotic agents for clinical application.