@article {2576, title = {Pharmacognostic Authentication and Phytochemical Profiling Coupled with Flowability Studies of Zingiber officinale for Quality Control}, journal = {Pharmacognosy Journal}, volume = {17}, year = {2025}, month = {December 2025}, pages = {342-351}, type = {Original Article}, chapter = {342}, abstract = {

Introduction: Medicinal plant extracts and other natural products have continued to find useful applications in nanomedicines due to their interesting biological properties. Clerodendrum thomsoniae (CT) is a plant used in traditional medicine to treat stress- and inflammation-related diseases, including jaundice, diabetes, and cancer. Objectives: This study, therefore, evaluated CT extract-based silver nanoparticles (Ag NPs) for their antioxidant and anti-inflammatory potential. Materials and Methods: The nanoparticles were prepared using green synthesis methods. They were characterized using UVVis spectroscopy, scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD). Antioxidant study was based on NO, H2O2, superoxide, and hydroxyl radical scavenging spectrophotometric methods. The in vitro anti-inflammatory test was based on a protein (egg albumin) denaturation assay. Results: Results showed CT-Ag NPs ranged from spherical to cubic shapes. The UV absorption peak at 427 nm suggests CT-Ag NP formation. The presence of elemental Ag (96.04 \%) by EDX analysis suggests the conversion of metallic silver into elemental silver. The crystallinity of the nanoparticles was shown on the X-ray diffractogram as a sharp peak at 38.12{\textdegree} [reflection index (111)] with an average particle size of 47 nm. CT-Ag NPs showed dose-dependent hydroxyl and nitric oxide radical scavenging activities with 67.63 {\textpm} 0.78 \% and 58.48 {\textpm} 1.20 \%, respectively, at 200 μg/mL. It showed a notable anti-inflammatory effect by inhibiting protein denaturation with an IC50 of 53.58 {\textpm} 17.78 μg/mL. Conclusions: It can be deduced from this study that CT-Ag NPs show promise as antioxidant and anti-inflammatory agents.

}, keywords = {Clerodendrum thomsoniae; silver nanoparticles; antioxidant; anti-inflammatory}, doi = {10.5530/pj.2025.17.105}, author = {Ankita singh and Arun Kumar Mishra} } @article {2110, title = {Comparative Evaluation of Microhardness and Color Change of Root dentin using Punica granatum (pomegranate extract), Sodium hypochlorite, Chlorhexidine and Normal saline as an Endodontic irrigant {\textendash} An in vitro study}, journal = {Pharmacognosy Journal}, volume = {15}, year = {2023}, month = {October 2023}, pages = {732-737}, type = {Original Article}, chapter = {732}, abstract = {

Aim: To evaluate the microhardness and change in color of root dentin using Punica granatum, sodium hypochlorite, chlorhexidine and normal saline as an endodontic irrigant and to implement their use in field of dentistry. Materials and Methods: 60 single rooted anterior teeth extracted due to periodontal and orthodontic reasons were collected. All the samples were decoronated to achieve constant length of 14mm. Patency of root canal was established using 10k file and working length was determined 1mm short of the file length. Each canal was prepared till F3 protaper. After preparation the samples were randomly divided into 4 groups: Group 1: Saline (Control); Group 2: 5\% Sodium Hypochlorite; Group 3: 2\% Chlorhexidine; Group 4: 5\% Punica granatum (pomegranate peel extract). After grouping the samples were longitudinally sectioned. One half of the tooth sample was used for microhardness testing using Vickers microhardness indentor and the other half of sample was used for color change evaluation using spectrophotometer after irrigation with the test solutions on day 1 and day 7th post irrigation. Results: The mean microhardness in all four groups decreased comparatively at post as compared to pre and the decrease was evident highest in sodium hypochlorite followed by chlorhexidine, pomegranate and saline the least. In regard to color change sodium hypochlorite, chlorhexidine and pomegranate all showed visible color changes after 7 day of irrigation with pomegranate showing the highest color change. Higher lightness was shown in Group 2 i.e., sodium hypochlorite whereas redness was seen more in Group 4 i.e., pomegranate and yellowish tint was more visible in Group 3. Conclusion: 5\% Punica granatum has showed negligible effect on microhardness of dentin but showed maximum color change when compared to chlorhexidine, sodium hypochlorite and saline.

}, keywords = {Chlorhexidine., Color change, Endodontic irrigant, Herbal, Microhardness, Punica granatum (pomegranate peel extract), UVVIS spectrophotometer}, doi = {10.5530/pj.2023.15.144}, author = {Ankita singh and Sunil Tejaswi and Kenganora Mruthunjaya and Suneeth Shetty and Ambikathanaya U.K and Sachin B. Manglekar} }