• List of Articles licorice

      • Open Access Article

        1 - Investigation of the Effect of Hemicellulase in Heat Reflux and Ultrasound Extraction Methods on Extraction Efficiency of Glycyrrhizic Acid of Licorice Root
        E. Giahi J. Keramat M. Jahadi
        Introduction: Enzyme assisted extraction methods have been recently reported for the extraction of bioactive compounds. The aim of this research is to investigate the effect of hemicellulase enzyme on the extraction efficiency of the extract and the extraction of glycyr More
        Introduction: Enzyme assisted extraction methods have been recently reported for the extraction of bioactive compounds. The aim of this research is to investigate the effect of hemicellulase enzyme on the extraction efficiency of the extract and the extraction of glycyrrhizic acid from licorice root through reflux and ultrasound extraction methods. Materials and Methods: After the preparation of licorice root, the enzymatic pretreatment was performed by hemicellulase enzyme at different concentrations (0.2, 1, 2, 3 %) for 1 hour in waterbath at 45°C. The extracts were obtained by both reflux and ultrasound methods (20 minutes at 35°C with 40 khz frequency), followed by centrifugation, concentration and drying in an oven. The extraction efficiency of the extract was calculated and the amount of glycyrrhizic acid was measured by HPLC method. Results: The extraction efficiency of the extract was increased significantly as the hemicellulase enzyme concentration  was increased, therefore the extract from the enzymatically pretreated licorice root with hemicellulase enzyme in both extraction methods at the concentration of 3% led to the maximum extraction efficiency and there were significant differences between the control and the enzymatically pretreated samples (p<0.05). Conclusion: Enzymatic pretreatment of the licorice root with hemicellulase enzyme in both reflux and ultrasound extraction methods is an effective method to increase the extraction efficiency of glycyrrhizic acid from licorice root. The enzyme with the capability of cell wall breakage of plant tissue facilitates the release of the intracellular materials. Manuscript profile
      • Open Access Article

        2 - Comparison of the Effect of Hydroalcoholic Extract of Licorice (Glycyrrhiza glabra) and Its Active Ingredient Glycyrrhizic Acid on the Amount of Bax and Bcl-2 Proteins in the Liver Cells of Type 1 Diabetic Male Rats
        Sedigheh Jani Vida Hojati Gholamhassan Vaezi Raheleh Rahbarian
        Introduction and Objective: The function of the liver as an insulin-dependent organ is strongly affected by diabetes. Diabetes can lead to liver damage through oxidative stress. The present study was performed to evaluate the possible effects of hydroalcoholic extract o More
        Introduction and Objective: The function of the liver as an insulin-dependent organ is strongly affected by diabetes. Diabetes can lead to liver damage through oxidative stress. The present study was performed to evaluate the possible effects of hydroalcoholic extract of licorice (Glycyrrhiza glabra) and glyceric acid on Bax and Bcl2 apoptotic factors in male type 1 diabetic rats. Material and Methods: In this experimental study, 72 male Wistar rats were injected into diabetic control, diabetic control and diabetic groups treated with hydroalcoholic extract of licorice and glycyrrhizinic acid at concentrations of 50 and 100 mg / kg by injection. The time intervals of 15 and 30 days were divided. Diabetic control and treatment groups became diabetic with a single intraperitoneal injection of 120 mg/kg alloxane monohydrate. At the end of the treatment period, Bax and Bcl2 apoptotic factors were measured. The results were analyzed by SPSS 21 software and one-way analysis of variance and Tukey post hoc test. Results: Bax apoptotic factor was significantly decreased in the treated groups compared to the diabetic control groups and Bcl2 anti-apoptotic factor was significantly increased (p <0.05) which indicates improvement in the structure of damaged liver tissue in the groups. It is a treatment. Conclusion: Hydroalcoholic extract of licorice and glycyrrhizic acid is in expressed doses of anti-apoptotic and has a protective effect against liver damage induced by diabetes. Manuscript profile
      • Open Access Article

        3 - The Effect of 8 Week of Resistance Training with Licorice and Boldenone Extract on Sperm Cells, Sertoli and Leydig Testicular Tissue of Male Rats
        Abdolali Banaeifar Mahnaz Shahrokhian Kermani Sajad Arshadi Bahram Abedi
        Inroduction & Objective: Anabolic-androgenic steroids popular among athletes have many beneficial and harmful effects on the body. Therefore, the aim of this study was to explain the effect of 8 hours of moderate intensity resistance training with licorice and Bolde More
        Inroduction & Objective: Anabolic-androgenic steroids popular among athletes have many beneficial and harmful effects on the body. Therefore, the aim of this study was to explain the effect of 8 hours of moderate intensity resistance training with licorice and Boldenone extract on sperm cells, Sertoli and Leydig testicular tissue of male rats. Materials and Methods: For the present experimental study, 40 8-week-old male rats weighing 20-220 g were selected and divided into 8 groups of 5, including healthy control, resistance training, and bulldon, Licorice, Boldenone + Licorice, Boldenone, Resistance Training, resistance training + licorice and resistance training + Boldenone + licorice were divided. Then, the resistance training groups performed moderate-intensity training 8 times a week and three times a week, the Boldenone groups received 5 (mg / kg) Boldenone once a week, and the licorice groups received weekly exercise. They received 500 (mg / kg) licorice three times. 48 hours after the last training session, rats were anesthetized by injection of ketamine (70 mg / kg) and xylarine (10 mg / kg) and after incision in the anterior part of the abdominal wall, testicular tissue was removed and tested Stored in refrigerator-80. Finally Data were analyzed using three-way ANOVA and Tukey post hoc tests. Results: The results showed that there was a significant difference between the means of spermatoid, sertoli and testicular tissue of male rats in different groups. Conclusion: According to the results of the present study and the effect of exercise and licorice, it is recommended that athletes use these exercises and licorice in consultation with a physician. Manuscript profile
      • Open Access Article

        4 - Preparation of Licorice-garlic-fennel essential oils nanoparticles and study of biological, physical and chemical properties
        Maral Zahedi Behnaz Memar Maher Navideh Anarjan Hamed Hamishehkar
        Plant essential oils are important in the food industry due to their antimicrobial properties as antioxidants and natural preservatives, as well as flavorings and aromatizers. The main problem is the high volatility and very low solubility of essential oils. Therefore, More
        Plant essential oils are important in the food industry due to their antimicrobial properties as antioxidants and natural preservatives, as well as flavorings and aromatizers. The main problem is the high volatility and very low solubility of essential oils. Therefore, the dispersion of essential oils in water as nanomaterials, using the techniques presented in nanotechnology, can be an effective solution to these problems. Therefore, in this study, microemulsions of licorice, garlic and fennel essential oils were successfully prepared. Physical and chemical properties, antioxidant activities, antibacterial activities of the prepared microemulsions were investigated. Microbial and turbidity results showed that reducing the particle size of essential oils in the nanoemulsion range using microemulsion systems could increase their antibacterial and antioxidant properties. Because the turbidity of microemulsions is a good indicator of their size or physical stability. Therefore, the stability also increased with decreasing particle size. Therefore, the aim of this work was to prepare licorice, garlic and fennel essential oil nanoparticles and to investigate their physical, chemical, antimicrobial and antioxidant properties. Manuscript profile
      • Open Access Article

        5 - Investigation the synergistic effects of licorice, garlic and fennel essential oils Microemulsions as natural antioxidant and antibacterial agents
        M. Zahedi B. Memar Maher Navideh Anarjan H. Hamishehkar
        The demand for the use of plant essential oils due to their antimicrobial properties as antioxidants and natural preservatives and flavorings and aromatizers is increasing in the food industry. Therefore, in this study, microemulsions of licorice, garlic, and fennel ess More
        The demand for the use of plant essential oils due to their antimicrobial properties as antioxidants and natural preservatives and flavorings and aromatizers is increasing in the food industry. Therefore, in this study, microemulsions of licorice, garlic, and fennel essential oils were successfully prepared alone and in combination. Physical and chemical properties, antioxidant activities, antibacterial activities, and synergistic properties of prepared microemulsions were investigated. For this reason, various microemulsions with oily phases consisting of pure licorice, garlic, and fennel essential oils and their combination were prepared. Microbial and turbidity results showed that reduced particle size of essential oil in the nanoemulsion range can increase their antibacterial and antioxidant properties using microemulsion systems. In addition, the synergistic effects of essential oil on each other were observed where oil phase microemulsions consisting of two components showed higher antibacterial and antioxidant activity compared to the oil phase of one component. Therefore, the work aimed to develop a microemulsion system with two oil phases consisting of licorice, garlic, and fennel. Manuscript profile
      • Open Access Article

        6 - Effect of dietary supplementation of licorice extract on egg quality and performance of hens
        محمد Sedghi ابولقاسم Golian پریسا Soleymani
        The objective of this study was to determine the effects of various levels of dietary licorice extract on egg production, egg weight, specific gravity, feed conversion ratio, egg shell quality and blood parameters. One hundred and twenty eight laying hens (58 weeks old) More
        The objective of this study was to determine the effects of various levels of dietary licorice extract on egg production, egg weight, specific gravity, feed conversion ratio, egg shell quality and blood parameters. One hundred and twenty eight laying hens (58 weeks old) were used in a completely randomized block design to test four diets with 4 replicates of 8 birds each. The four diets were supplemented with 0, 2, 4 or 6 g/kg of diets licorice extract. Hens fed the diet supplemented with 4 g/kg of licorice extract had greater (p<0.06) egg production than the control fed diet during the experiment. Hens fed 4 g/kg of licorice extract produced a significantly thicker shell (p<0.05) than those fed supplemented with 6 g/kg (389 vs. 374 mm). Percentage of abdominal fat pad was significantly decreased (p<0.05) in birds fed diet containing 6 g/kg of licorice extract compared to control diet (8.3 vs. 14.9 percentage of carcass weight). Feed consumption, feed conversion ratio, egg weight, dry shell weight, egg-specific gravity, percentage of wet albumen and wet yolk based on percentage of whole egg weight and organ weight were not influenced by licorice supplementation. This study showed that licorice extract at the level of 4 g/kg would positively influence egg production or shell quality and decrease the abdominal fat pad when 6 g/kg of licorice was fed to hens. Manuscript profile
      • Open Access Article

        7 - Evaluation of glabridin content and its relationship with environmental factors in some different populations of Glycyrrhiza glabra L. native to Iran
        ghasem eghlima mohsen sanikhani Azizollah Kheiry Javad Hadian mitra aelaei
        Glabridin is one of the most flavonoid compounds in Glycyrrhiza glabra L. root with biological activities such as antioxidant, antibacterial, anti-diabetic, antimicrobial, anti-cancer and neuroprotective properties. In this study, in order to investigate the content of More
        Glabridin is one of the most flavonoid compounds in Glycyrrhiza glabra L. root with biological activities such as antioxidant, antibacterial, anti-diabetic, antimicrobial, anti-cancer and neuroprotective properties. In this study, in order to investigate the content of glabridin and its relationship with soil and climatic factors, roots with a diameter of 2 cm from 17 populations of licorice were harvested from different regions of Iran in October 2018. and transferred to the Laboratory of Research Institute of Medicinal Plants and Raw Materials at Shahid Beheshti University for analysis. Extraction of the extract was performed using 80% methanol solvent and the content of glabridin was studied by HPLC. Glabridin content of different licorice populations varied from 0.41 (in Yasuj population) to 22.87 (in Kashmar population) mg / g dry weight. Significant positive correlation was observed between glabridin and phosphorus and soil lime content at 1% level. Glabridin content had a significant negative correlation with altitude of 5%. Based on the results of cluster analysis, 17 licorice populations were divided into three main groups. Evaluation of populations for glabridin showed a high diversity so that Kashmar, Ilam and Bojnurd populations can be used as superior populations for domestication and breeding and for food and pharmaceutical industries. Manuscript profile
      • Open Access Article

        8 - Enriching eggplant yogurt with alcoholic licorice extract and its effect on Helicobacter pylor
        Saeed Tekieh Marouf Rezvan Pourahmad Mohammad Reza Eshaghi
        Helicobacter pylori can cause gastrointestinal diseases such as gastritis, stomach ulcer and gastric cancer. The main treatment for this disease is antibiotic therapy, but due to the length of treatment and the damage caused by the use of antibiotics, alternative treatm More
        Helicobacter pylori can cause gastrointestinal diseases such as gastritis, stomach ulcer and gastric cancer. The main treatment for this disease is antibiotic therapy, but due to the length of treatment and the damage caused by the use of antibiotics, alternative treatments are needed. It seems that the use of herbs is the best alternative for treatment of the disease. The purpose of this study was to investigate the effect of eggplant yogurt enriched with alcoholic licorice extract on Helicobacter pylori inhibition. Extract of licorice was added to eggplant yogurt samples at concentrations of 0.1, 0.2, 0.3, 0.4 and 0.5%. Control sample (extract free) was prepared. The samples were kept at 4 ° C for three weeks. Microbial, physicochemical and sensory properties of the samples were investigated. The minimum inhibitory concentration (MIC) of alcoholic licorice extract by micro dilution method against Helicobacter pylori was 7000 ppm and the minimum bactericidal concentration (MBC) was 10000 ppm. The highest diameter of inhibition zone was related to the eggplant yogurt sample containing 0.5% licorice extract and the lowest was belonged to control sample (eggplant yogurt without licorice extract). Adding the licorice extract to the eggplant yogurt samples decreased significantly acidity and syneresis (p<0.05). The addition of licorice extract improved overall acceptance of eggplant yogurt. Among the samples, the sample containing 0.5% licorice extract was selected as the best treatment. Therefore, eggplant yogurt containing licorice extract has suitable sensory quality and can be affected the inhibition of Helicobacter pylori. Manuscript profile
      • Open Access Article

        9 - اثر پودر گیاه شیرین بیان و گزنه بر عملکرد رشد، جمعیت میکروبی شکمبه و برخی فراسنجه های خونی گوسفند
        ر. راه چمنی م. فرامرزی ف. مسلمی پور ج. بیات کوهسار
        این پژوهش‌ به ­منظور بررسی تأثیر پودر گیاه شیرین­ بیان و گزنه بر عملکرد، تخمیر و جمعیت میکروبی شکمبه و برخی متابولیت‌های خونی گوسفند انجام شد. این تحقیق در قالب مربع لاتین تکرارشده 3 × 3  و با استفاده از 9 رأس گوسفند بالغ نژاد دالاق با میانگین وزن اول More
        این پژوهش‌ به ­منظور بررسی تأثیر پودر گیاه شیرین­ بیان و گزنه بر عملکرد، تخمیر و جمعیت میکروبی شکمبه و برخی متابولیت‌های خونی گوسفند انجام شد. این تحقیق در قالب مربع لاتین تکرارشده 3 × 3  و با استفاده از 9 رأس گوسفند بالغ نژاد دالاق با میانگین وزن اولیه 2 ± 35 کیلوگرم در 3 دوره 21 روزه شامل 14 روز به ­­­­عنوان دوره عادت ­پذیری و 7 روز نمونه­ برداری انجام شد. تیمارهای آزمایشی شامل تیمار1 (شاهد)­: جیره پایه (بدون گزنه و شیرین ­بیان) و دو تیمار آزمایشی حاوی 10 درصد ماده خشک دریافتی پودر شیرین­ بیان (تیمار2) و گزنه (تیمار3) بودند. به ­منظور تعیین جمعیت میکروبی و اندازه­ گیری pH، نمونه ­های مایع شکمبه قبل از خوراک­ دهی صبح، 4 و 8 ساعت بعد از خوراک ­دهی صبح جمع­ آوری شدند. خون­ گیری در پایان هر دوره 2 ساعت بعد از خوراک ­دهی صورت گرفت. افزودن پودر گیاه گزنه و شیرین ­بیان خشک­ شده تأثیر معنی ­داری بر افزایش وزن روزانه، مصرف غذا، pH، ازت آمونیاکی، تعداد کل باکتری­ ها و کلی­فرم­ ها نداشت ولی ضریب تبدیل تیمار شیرین­ بیان نسبت به تیمار شاهد به­ طور معنی ­داری افزایش یافت (0.05>P).  تعداد باکتری­ های اسید لاکتیک در تیمار شیرین ­بیان نسبت به تیمار گزنه، 8 ساعت بعد از خوراک ­دهی صبح کاهش معنی ­داری داشت. تیمار­های گزنه و شیرین­ بیان تأثیر معنی ­دار بر گلوکز، پروتئین کل، تری­ گلیسیرید، کلسترول و آلبومین خون نداشتند به طور­کلی شیرین ­بیان باعث کاهش باکتری­ های اسید لاکتیک و افزایش معنی­ دار ضریب تبدیل شد ولی بر سایر فاکتورها اثری نداشت و گزنه بر عملکرد، فراسنجه­ های خونی و شکمبه ­ای تأثیر نداشت. Manuscript profile
      • Open Access Article

        10 - اثرات سطوح مختلف پودر گیاه دارویی شیرین بیان (Glycyrrhiza glabra) بر عملکرد، کیفیت تخم و برخی فراسنجه‌های بیوشیمیایی سرم خون مرغ‌های تخمگذار
        ح. اقدم شهریار ع. احمد‌زاده ع. نوبخت
        آزمایشی به منظور ارزیابی اثرات سطوح مختلف پودر گیاه شیرین بیان (LP) بر عملکرد، صفات کیفی تخم‌ مرغ و برخی فراسنجه‌های بیوشیمیایی سرم خون مرغ‌های تخمگذار در اواخر دوره‌ تخمگذاری انجام شد. تعداد 180 قطعه مرغ تخمگذار در سن 68- 55 هفتگی با وزن یکسان، در طرح کاملاً تصادفی با More
        آزمایشی به منظور ارزیابی اثرات سطوح مختلف پودر گیاه شیرین بیان (LP) بر عملکرد، صفات کیفی تخم‌ مرغ و برخی فراسنجه‌های بیوشیمیایی سرم خون مرغ‌های تخمگذار در اواخر دوره‌ تخمگذاری انجام شد. تعداد 180 قطعه مرغ تخمگذار در سن 68- 55 هفتگی با وزن یکسان، در طرح کاملاً تصادفی با پنج تیمار، سه تکرار و 12 قطعه مرغ در هر تکرار شامل به گروه‌های آزمایشی تقسیم شدند. گروه‌های آزمایشی شامل: 1) جیره‌ شاهد (بدون افزودن پودر گیاه خشک شده شیرین بیان)؛ و گروه‌های 2، 3، 4 و 5) حاوی 5/0، 1، 5/1 و 2 درصد پودر شیرین بیان بودند. نتایج نشان داد، که استفاده از سطوح مختلف پودر شیرین بیان، به طور معنی‌‌داری عملکرد و صفات کیفی تخم ­مرغ، ‌را تحت تأثیر قرار می‌‌دهد (01/0P<). بالاترین عملکرد در تولید تخم­ مرغ (96/60 درصد)، وزن تخم ­مرغ (50/61 گرم)، توده تخم (60/37 گرم) و بهترین ضریب تبدیل خوراک (93/2) با استفاده از 2 درصد LP به دست آمد. مقدار مصرف خوراک تحت تأثیر گروه‌های آزمایشی قرار نگرفت. بیشترین مقادیر زرده تخم ‌مرغ (43/29 درصد)، ضخامت پوسته تخم ­مرغ (366/0 میلی­متر)، واحد هاو (79/74) و شاخص رنگ زرده (78/4) با استفاده از جیره حاوی 2 درصد  LPبه دست آمد. مکمل‌‌سازی پودر شیرین بیان در جیره مرغ­ تخمگذار، نتوانست به صورت معنی‌‌داری فراسنجه‌‌های بیوشیمیایی سرم خون را نسبت به گروه شاهد تغییر دهد (05/0<P). می­توان نتیجه گرفت که در مرغ تخمگذار در مرحله آخر تخمگذاری، استفاده از 2 درصد پودر شیرین بیان، بدون تأثیر معنی­دار بر فراسنجه‌‌های بیوشیمیایی سرم، می­تواند عملکرد و صفات کیفی تخم ‌مرغ را بهبود ببخشد. Manuscript profile
      • Open Access Article

        11 - پاسخ‌های ایمنی و پاسخ‌های برخی از متابولیت‌های خون به مکمل ریشه شیرین بیان افزوده شده در جیره گوساله‌های ماده هولشتاین
        R. Sajjadi A.A. Solati M. Khodaei Motlagh M. Kazemi Bonchenari
        در دهه اخیر گیاهان دارویی متفاوتی در تغذیه دام و طیور مورد استفاده قرار گرفته است. به نظر می‌رسد امکان جایگزینی برخی از گیاهان دارویی به جای آنتی‌بیوتیک‌های وسیع الطیف وجود دارد. ریشه شیرین بیان یک گیاه دارویی محسوب می‌شود که در مطالعات متفاوتی مورد استفاده قرار گرفته ا More
        در دهه اخیر گیاهان دارویی متفاوتی در تغذیه دام و طیور مورد استفاده قرار گرفته است. به نظر می‌رسد امکان جایگزینی برخی از گیاهان دارویی به جای آنتی‌بیوتیک‌های وسیع الطیف وجود دارد. ریشه شیرین بیان یک گیاه دارویی محسوب می‌شود که در مطالعات متفاوتی مورد استفاده قرار گرفته است. در مطالعه حاضر تأثیر افزودن ریشه شیرین بیان بر عملکرد و شاخص‌های انرژی (گلوکز، اسیدهای چرب غیر استریفه و بتاهیدروکسی بوتیرات) و عملکرد سیستم ایمنی (ایمنوگلوبین کل، ایمنوگلوبین G و ایمنوگلوبین A) گوساله‌های ماده هولشتاین مورد بررسی قرار گرفت. تعداد 14 رأس گوساله ماده با میانگین وزن 5/85 کیلوگرم در قالب طرح کاملاً تصادفی و در 2 تیمار قرار گرفتند (7 رأس گوساله در هر تیمار). تیمار شاهد به عنوان تیمار C در نظر گرفته شد و تیماری که مکمل شیرین بیان دریافت کرده بود به عنوانL  در نظر گرفته شد. آزمایش 10 هفته در نظر گرفته شد. هفته اول به عنوان دوره عادت دهی در نظر گرفته شد. مصرف خوراک به صورت روزانه بررسی شد و نمونه خون دو بار در طول آزمایش اندازه‌گیری شد. نتایج نشان داد که میانگین مصرف ماده خشک برابر 1790 و1860 گرم در روز برای تیمارهای C و L بود (05/0<P). غلظت اسیدهای چرب استریفه نشده در بین دو تیمار تفاوت معنی‌داری نشان داد (05/0P<). غلظت ایمنوگلوبین A تفاوت معنی‌داری نشان نداد اما غلظت کل ایمنوگلوبین‌ها و ایمنوگلوبین G تفاوت معنی‌داری در بین دو تیمار نشان دادند (05/0P<). غلظت کل ایمنوگلوبین‌ها برابر 1/150 و 2/138 میلی‌گرم در دسی‌لیتر برای تیمارهای C وL  بود که نشان دهنده بالاتر بودن این فراسنجه تا حدود 31 درصد با استفاده مکمل در برابر تیمار شاهد بود. به طور خلاصه نتیجه‌گیری شد با وجودی که مکمل شیرین بیان عملکرد دامها را تحت تأثیر قرار ندادده بود اما این مکمل توانست وضعیت انرژی در گوساله‌ها را بهبود داده و همچنین وضعیت ایمنی را در این دام‌ها بهبود دهد. Manuscript profile
      • Open Access Article

        12 - Effects of silicon on glycine-betaine, phytochelatin, and antioxidant enzymes in licorice (Glycyrrhiza glabra L.) under aluminum stress
        Mojtaba Yazdani Shekoofeh Enteshari Sara Saadatmand Saeid Habibollahi
      • Open Access Article

        13 - Biological synthesis of nanoparticles using Aloe vera, Chamomile, and Licorice extracts
        Mojtaba Pourrezvani Mahdi Changizi Shahab Khaghani Masoud Gomarian Davood Ghanbari
      • Open Access Article

        14 - The effect of application plant mulches on weeds control of fig (Ficus carica) orchards in Estahban region
        Zahra Tabesh Farhad Mohajeri
        To study the effect of different types of plant mulch and their thicknesses on weeds control of fig (Ficus carica) orchards, an experiment was performed in a factorial arrangement based on a randomized complete block design with three replications in Estahban region of More
        To study the effect of different types of plant mulch and their thicknesses on weeds control of fig (Ficus carica) orchards, an experiment was performed in a factorial arrangement based on a randomized complete block design with three replications in Estahban region of Fars province, Iran in 2018, where factors were non-living mulch in three levels (Almond shell, Wheat straw and Licorice residues) and mulch thickness in four levels (Control, 5, 10 and 15 cm). The results indicated that mulches can significantly reduce weeds density and growth (dry and wet weight) in compare to control treatment. Application of Licorice residues better than other treatments controlled the growth and density of weeds in fig. Among the levels of different mulch thickness, 10 cm thick mulch, in addition to minimize soil moisture loss, resulted to reduce the biological yield of weeds. In general, non-living mulches can be an effective agronomic management to control the weeds in fig orchards. Manuscript profile
      • Open Access Article

        15 - The Effect of Licorice (Glycyrrhiza Glabra) Extract on Sperm Parameters and Plasma Level of Testosterone in Male Rats
        Seidmohammadreza seidtaj Mohamadreza Attarnosrati
        Glycyrrhiza Glabra is a Mediterranean perennial plant that its extract has glucose, asparagine, albumin materials, flavonoids, antioxidants, resins and so on, due to the presence of important medical and nutritional compounds, it has been considered by pharmaceutical an More
        Glycyrrhiza Glabra is a Mediterranean perennial plant that its extract has glucose, asparagine, albumin materials, flavonoids, antioxidants, resins and so on, due to the presence of important medical and nutritional compounds, it has been considered by pharmaceutical and food industries. On the other hand, the existence of numerous therapeutic effects of licorice, as well as the identification of the potential protective role of licorice against Covid-19 disease and the increase in its consumption, increases the importance of investigating the effects of licorice consumption on other body systems. This study aimed to investigate the effect of Glycyrrhiza glabra extract on sperm parameters and blood testosterone levels in male rate. Twenty-eight adult male rats, ranging in weight from 180 to 200 g were divided into four groups include control and three treatment groups which every group received 100, 200 or 300 doses of alcoholic extract by gavage daily for 10 days. The results of this study showed that the oral consumption of alcoholic extract of licorice plant at the rate 100 and 200 mg per body weight had no significant effect on sperm parameters and serum testosterone levels (p > 0.05) and only consumption of 300 mg/kg of body weight caused a significant decrease (p < 0.05) in the average number of live sperms and their motility, as well as a significant decrease in the serum level of testosterone was observed in this dose (p < 0.05). But there was no significant effect on the weight of the testicles and the weight of the rats (p > 0.05). It seems that consuming high amounts of licorice extract has fertility-reducing effects in male rats, and this effect can be caused by the reduction of plasma testosterone. Manuscript profile
      • Open Access Article

        16 - Effect of drying conditions on glycyrrhizic acid and water soluble extract of licorice plant (Glycyrrhiza glabra L.)
        Ali Rezvani Aghdam Seyyed Mohammad Hosein Ale Omrani Nejad
        Introduction: Nature has always been an excellent source of many therapeutic compounds providing with numerous medicinal plants and microorganisms producing beneficial chemicals. The growing demand for medicinal species indicates the emergence of a market with high pote More
        Introduction: Nature has always been an excellent source of many therapeutic compounds providing with numerous medicinal plants and microorganisms producing beneficial chemicals. The growing demand for medicinal species indicates the emergence of a market with high potential for consumption, requiring a consistent and readily available supply of high-quality raw material. Medicinal properties of plants are mainly related to the ingredient contents. Achieving the maximum ingredient contents is one of the most important goals of the production and processing of medicinal plants. The post-harvesting process of medicinal plants has great importance in the production chain, because of its direct influence on the quality and quantity of the active ingredients in the product sold. Drying is the most common processing method affecting the quality and quantity of ingredients after harvesting. Several factors such as temperature, duration, air flow, relative humidity, sample size and plant texture affect the amount and type of these compounds. The choice of the optimal drying air temperature is a central economic and ecological criterion. Although most experimental studies state that increasing temperature was related to the reduction active ingredient contents, but also, there are differences in temperature sensitivity between species. Increasing temperature was leaded decreasing time of drying especially large samples. Glycyrriza glabra (fabaceae family) is ligneous perennial shrubs plant. This plant is considered one of the most important export medicinal plants, which has medicinal properties. The medicinal properties of this plant are mainly related to glycyrrhizic acid and water-soluble extract. This plant was used in foods as sweetening and in both traditional and herbal medicine. This plant was considered to have strong pharmacological activities, such as anti-inflammatory, anti-ulcer, antibacterial, regulating blood lipids and blood glucose levels, neuroprotection, anti-osteoporosis, phytoestrogen and anticancer. In this study, the effect of temperature and root size was evaluated on glycyrrizic acid and water soluble extract.Materials and Methods: Gathered licorice root were chopped in large size (10 cm length, 10mm diameter), medium size (5 cm length, 7mm diameter), and small size (2 cm length, 5mm diameter). All samples were dried in room temperature (natural drying), and oven (50 and 70 degree centigrade). Glycyrrhizic acid solution were prepared European pharmacopeia and were injected HPLC apparatus. To prepare water soluble extract, water poured on prepared licorice root powder. After 24 hours keeping steady, sample was shaked off with shaker apparatus 8 hours and keeping steady again18 hours. Ready mixture was filtered and heated in 105 degrees centigrade until it reached constant weight. Water soluble extract and glycyrrhizic acid were measured to determine effect drying temperature and size sample on the amount of them.Results and Discution: Based on the results of this research, temperature did not have a significant effect on the amount of glycyrrhizic acid in small dried samples, but in medium samples, an increase in temperature was led to a significant decrease in glycyrrhizic acid, and in large samples, an increase in temperature was led to significant increase in glycyrrhizic acid. Water-soluble extract showed similar behavior glycyrrhizic acid. Finally, drying large size licorice root in 70 degrees centigrade introduced as the best conditions for drying licorice root. Manuscript profile