@article {2522, title = {Analysis of Fatty Acids in Wool Oil Extracted from Mongolian Sheep Wool using Gas Chromatography and Infrared Spectrophotometry}, journal = {Pharmacognosy Journal}, volume = {17}, year = {2025}, month = {August 2025}, pages = {444-449}, type = {Original Article}, chapter = {444}, abstract = {

To develop a method for extracting wool oil from Mongolian sheep wool, evaluate its quality, and determine the fatty acid composition. The extraction of wool oil was performed using the Soxhlet method. Fatty acid content was determined by gas chromatography, while saponification and ester numbers were assessed using titrimetric methods. Functional compounds in the wool oil were identified using infrared spectrophotometry, with further analysis conducted through gas chromatography. Infrared spectroscopy identified valence and deformation oscillations at 3308.01 cm-1, 2922.47 cm-1, 1743.46 cm-1, 1378.34 cm-1, 1465.76 cm-1, 720.83 cm-1, and 1085.39 cm-1. Gas chromatography revealed 14 distinct fatty acids, with saturated fatty acids accounting for 66.6\%, and unsaturated fatty acids making up 33.3\%. Polyunsaturated fatty acids comprised 26.26\%, while monounsaturated fatty acids represented 7.14\% of the total. The analysis identified key functional groups (C=O, CH3, CH2, C-C, C-O, O-H) in wool oil using infrared spectroscopy. The fatty acid composition of the extracted wool oil included a predominance of saturated fatty acids (66.6\%) and a significant proportion of polyunsaturated fatty acids (26.26\%). This method provides a viable alternative for extracting and utilizing wool oil from Mongolian sheep wool.

}, keywords = {Functional groups; Lanolin; Saponification; Soxhlet extraction}, doi = {10.5530/pj.2025.17.56}, author = {Tserennadmid Erdenebaatar and Otgonsuren Daramzav and Bilguun Enkhbat and Davaadagva Damdinjav and Myagmarsuren Badamtsetseg and Khatanbold Otgonbayar and Munkhbat Sukhee} } @article {2394, title = {Technological Study on The Synthesis of Silver Nanoparticles Using Plant Extracts Via Biosynthesis Methods}, journal = {Pharmacognosy Journal}, volume = {16}, year = {2024}, month = {October 2024}, pages = {1124-1130}, type = {Research Article}, abstract = {

Introduction: Silver nanoparticles are better than other metal nanoparticles in terms of antimicrobial activity and stability. Recently, the biosynthesis method has been widely used, known for being ecofriendly and having lower toxicity compared to other methods of obtaining metal nanoparticles. This method is characterized by the use of active pharmaceutical ingredients contained in medicinal plants as stabilizers or bio reducers to produce silver nanoparticles. Methods: In this study, we synthesized silver nanoparticles using extracts from the upper parts of Cacalia hastata L., Thymus gobicus Czern., and Glycyrrhiza uralensis Fisch., which were collected from various provinces from Mongolia. These medicinal plants are used as bio reducing agents. We determined the most sensitive light absorption of each sample with purified silver nanoparticles using a UV-M51 ultraviolet spectrophotometer. Sizes and distributions were analyzed through Nanophox Particle Size Analysis, while morphological structure was examined using energy dispersive X-ray spectroscopy (EDX). The formations of nanoparticles were determined with instruments such as X-Ray Diffraction (XRD). Results: The appropriate formation times for nanoparticles were 24 minutes with Cacalia hastata L. extract and 16 minutes with Thymus gobicus Czern. extract. XRD analysis revealed characteristic peaks at 38.15{\textdegree}, 44.3{\textdegree}, and 64.55{\textdegree}, indicating the formation of a crystalline structure and confirming the presence of silver nanoparticles. Conclusion: Furthermore, these nanoparticles exhibited antibacterial activity against both S. aureus and E. coli.

}, keywords = {Antimicrobial, Bio reducing, Eco-friendly, Mongolian plants}, doi = {10.5530/pj.2024.16.183}, author = {Bilguun Enkhbat and Buyankhishig Dorjsuren and Tserennadmid Erdenebaatar and Myagmarsuren Badamtsetseg and Zolbayar Baasanjav and Enkhtuul Bayarsaikhan and Shinezaya Dashbaljir and Khatanbold Otgonbayar and Buyanjargal Erdenebat and Jambaninj Dambiinyam and Otgonsuren Daramzav} }