fa Bioactive Compounds پژوهشي Research <span style="font-size:10pt"><span style="line-height:115%"><span style="font-family:&quot;Optima&quot;,serif"><span style="color:black"><b><span style="font-size:9.0pt"><span style="line-height:115%"><span style="font-family:&quot;Times New Roman&quot;,serif">Objective:</span></span></span></b><span style="font-size:9.0pt"><span style="line-height:115%"><span style="font-family:&quot;Times New Roman&quot;,serif"> Each medicinal herb contains one or more effective materials that are defined for therapeutic use according to the active ingredient of the plant. Since chemical drugs have side effects&nbsp;&nbsp; the value of medicinal plants is still preserved after several centuries. One of these spectroscopic methods for identifying functional groups in medicinal plants is (FTIR).</span></span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="line-height:115%"><span style="font-family:&quot;Optima&quot;,serif"><span style="color:black"><span style="font-size:9.0pt"><span style="line-height:115%"><span style="font-family:&quot;Times New Roman&quot;,serif"></span></span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="line-height:115%"><span style="font-family:&quot;Optima&quot;,serif"><span style="color:black"><b><span style="font-size:9.0pt"><span style="line-height:115%"><span style="font-family:&quot;Times New Roman&quot;,serif">Material and Methods:</span></span></span></b><span style="font-size:9.0pt"><span style="line-height:115%"><span style="font-family:&quot;Times New Roman&quot;,serif"> This study aimed to identify the functional groups of Mentha longifolia medicinal plants native to Ilam by Fourier-transform infrared spectroscopy (FTIR) method so that by recognizing the main and effective compounds of plants we can more easily step towards, recognizing and producing biomolecules and herbal medicines.</span></span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="line-height:115%"><span style="font-family:&quot;Optima&quot;,serif"><span style="color:black"><b><span style="font-size:9.0pt"><span style="line-height:115%"><span style="font-family:&quot;Times New Roman&quot;,serif"></span></span></span></b></span></span></span></span><br> <span style="font-size:10pt"><span style="line-height:115%"><span style="font-family:&quot;Optima&quot;,serif"><span style="color:black"><b><span style="font-size:9.0pt"><span style="line-height:115%"><span style="font-family:&quot;Times New Roman&quot;,serif">Results:</span></span></span></b><span style="font-size:9.0pt"><span style="line-height:115%"><span style="font-family:&quot;Times New Roman&quot;,serif"> According to the results of spectroscopy, it was found that this plant has 15 spectra, including groups O-H, C-H, C = C, N-O, C-O, S = O, C-Br, and C-I.</span></span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="line-height:115%"><span style="font-family:&quot;Optima&quot;,serif"><span style="color:black"><b><span style="font-size:9.0pt"><span style="line-height:115%"><span style="font-family:&quot;Times New Roman&quot;,serif"></span></span></span></b></span></span></span></span><br> <b><span style="font-size:9.0pt"><span style="line-height:107%"><span style="font-family:&quot;Times New Roman&quot;,serif">Conclusion:</span></span></span></b> <span style="font-size:9.0pt"><span style="line-height:107%"><span style="font-family:&quot;Times New Roman&quot;,serif">The results of the present study show the phytochemical of this plant. Further advanced studies are recommended to determine the composition of this plant.</span></span></span> Medicinal herb, Mentha longifolia, Factor groups, FTIR, Iran 4 8 http://pbp.medilam.ac.ir/browse.php?a_code=A-10-51-1&slc_lang=fa&sid=1 Sally A. El-Zahaby sally.elzahaby@yahoo.com 10031947532846002105 10031947532846002105 No Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt Samira Shokri shokrisamira22@yahoo.com 10031947532846002106 10031947532846002106 Yes Department of Environmental Health Engineering, Division of Food Safety & Hygiene, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Seyede Fatemeh Hosseini sf.hosseini@ymail.com 10031947532846002107 10031947532846002107 No Department of Biology, Faculty of Basic Sciences, University of Mazandaran, babolsar, Iran Sciences, Kerman, Iran Neda Dastyar nedadastyar98@gmail.com 10031947532846002108 10031947532846002108 No Department of Midwifery, Nursing and Midwifery School, Jiroft University of Medical Sciences, Jiroft, Iran