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Green synthesis of silver nanoparticles using leaf extract of Lantana camara and its antimicrobial activity 山楂叶提取物绿色合成纳米银及其抗菌活性研究
Pub Date : 2020-06-22 DOI: 10.22377/ijgp.v14i02.2878
N. Palei
Introduction: To synthesize silver nitrate nanoparticles (AgNPs) using aqueous leaf extracts of Lantana camara as a reducing agent and evaluates its antimicrobial activity. Materials and Methods: L. camara extract acts both reducing agents as well as capping agent. Fourier-transform infrared (FT-IR) study was used for identifying the compounds responsible for the reduction of silver ions, the functional groups present in the plant extract. Various techniques used to characterize synthesized nanoparticles are dynamic light scattering, transmission electron microscopy (TEM), energy diffraction X-ray, and ultraviolet–visible (UV Vis) spectrophotometer were performed to characterize synthesized AgNPs. Results and Discussion: From the FTIR study, it was confirmed the presence of some functional groups capping the AgNPs. UV-Vis spectrophotometer showed an absorbance peak in the range of 436–446 nm. The average particle size of the prepared AgNPs was found to be 86 nm. In addition, the antimicrobial activity of prepared AgNPs was found to be higher than plain extract using various Gram-positive and Gram-negative bacteria. Conclusions: From the results, it can be concluded that green synthesis of AgNPs from L. camera extract is easy, fast, one step, eco-friendly, and alternative conventional methods. The synthesized AgNP preparations from L. camara leaf extract show potential for application as broad-spectrum antimicrobial agents.
前言:以山药叶提取物为还原剂合成硝酸银纳米颗粒(AgNPs),并对其抗菌活性进行了评价。材料与方法:山茱萸提取物兼有还原剂和封盖剂的作用。傅里叶变换红外(FT-IR)研究鉴定了植物提取物中还原银离子(官能团)的化合物。用于表征合成纳米颗粒的各种技术是动态光散射、透射电子显微镜(TEM)、能量衍射x射线和紫外可见分光光度计来表征合成的AgNPs。结果和讨论:从FTIR研究中,证实存在一些官能团覆盖AgNPs。紫外可见分光光度计在436 ~ 446 nm范围内发现吸光度峰。所得AgNPs的平均粒径为86 nm。此外,制备的AgNPs对革兰氏阳性菌和革兰氏阴性菌的抑菌活性均高于普通提取物。结论:从实验结果可以看出,从金针菇提取物中绿色合成AgNPs具有简单、快速、一步法、生态友好、可替代常规方法的特点。从camara camara叶提取物合成的AgNP具有作为广谱抗菌药物的应用潜力。
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引用次数: 6
Green synthesis and characterization of iron nanoparticles from Bauhinia tomentosa 毛毛紫荆铁纳米颗粒的绿色合成及表征
Pub Date : 2020-06-22 DOI: 10.22377/IJGP.V14I02.2879
R. Devika
Introduction: Synthesis of metallic nanoparticles using plant extract is inexpensive, easily scaled up, and eco-friendly and their technique has wide open applications in various sectors such as medicine, health, and environment due to its mechanism of action for the betterment of human. The aforesaid challenges and principles of nanoparticles have advanced in the green synthesis utilizing the phytoconstituents to reduce and stabilize the metallic nanoparticles. Materials and Methods: In the investigation, green synthesis of iron nanoparticles from Bauhinia tomentosa was characterized under ultraviolet–visible spectrophotometer, Fourier transform infrared at various concentrations and durations. The characterized iron nanoparticles were analyzed for reducing assay and hydrogen peroxide assay to prove their antioxidant properties and antibacterial properties. Results and Discussion: When the plant extract was added to ferric chloride solution Fe3+ reduced to Fe0 which was indicated by the color change from green into blackish green proved the formation of iron nanomaterials (due to surface Plasmon resonance singularity). The synthesized iron nanomaterials were characterized by different parameters such as proportions (extract: Ferric chloride) and development study at different durations which are identified as factors affecting the yields of nanoparticles and later the nanoparticles were characterized. The reducing power of the iron nanoparticles synthesized from B. tomentosa was investigated by comparing with the reductive ability of ascorbic acid. Reducing power assay has proved to be one of the convenient and rapid screening method for measuring the antioxidant potential. Conclusion: In the present investigation, the plant bioactive constituents of B. tomentosa proved to be highly efficient as reducing agents, antibacterial agent which on further clinical investigation will prove to have high therapeutic value in the medical field.
介绍:利用植物提取物合成金属纳米颗粒具有成本低廉、易于规模化、环境友好等优点,具有改善人类健康的作用机制,在医药、卫生、环境等领域有着广泛的应用前景。纳米颗粒的上述挑战和原理,推动了利用植物成分还原和稳定金属纳米颗粒的绿色合成。材料与方法:利用紫外-可见分光光度计和傅里叶变换红外光谱对毛毛紫荆绿色合成的铁纳米颗粒进行了表征。通过还原实验和过氧化氢实验对所制备的铁纳米粒子进行了分析,以证明其抗氧化和抗菌性能。结果与讨论:将植物提取物加入到氯化铁溶液中,Fe3+还原为Fe0,颜色由绿色变为墨绿色,证明了铁纳米材料的形成(由于表面等离子体共振奇异性)。通过配比(萃取物:氯化铁)和发育时间等参数对合成的铁纳米材料进行表征,确定了影响纳米颗粒产率的因素,并对纳米颗粒进行了表征。通过与抗坏血酸的还原能力进行比较,研究了绒毛白杆菌合成的铁纳米颗粒的还原能力。还原力法是一种简便、快速的测定抗氧化电位的筛选方法。结论:在本研究中,毛毛菌的植物活性成分被证明是高效的还原剂、抗菌药物,在进一步的临床研究中将证明其在医学领域具有很高的治疗价值。
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引用次数: 0
Protective action of hydroethanolic extract of Moringa oleifera flower on acetaminophen-induced hepatotoxicity in rats 辣木花氢乙醇提取物对对乙酰氨基酚所致大鼠肝毒性的保护作用
Pub Date : 2020-06-10 DOI: 10.22377/ijgp.v14i1.2863
S. Karmakar
Background/Aims: The present study was to investigate the possible hepatoprotective action of the hydroethanolic extract of Moringa oleifera (MO) flowers in comparison to hepamerz (positive control) against long-term hepatotoxicity induced by acetaminophen (APAP) in albino Wistar rat (male). Methods: In this study, different groups of animals were treated with APAP (300 mg/kg body weight), both APAP (300 mg/kg body weight) and MO flower hydroethanolic extract (400 mg/kg body weight), both APAP (300mg/kg body weight) and hepamerz (150 mg/kg body weight), respectively. Results: Liver function tests were analyzed, and histopathological changes of liver were also observed along with antioxidant enzymes and lipid peroxidation. APAP-induced hepatotoxicity increases the serum glutamate oxaloacetate transaminase (SGOT), serum glutamate pyruvate transaminase (SGPT), alkaline phosphatase (ALP), and decreases the level of total serum protein, where significant decrease in SGOT, SGPT, and ALP and significant increase in total serum protein were observed in the MO flower hydroethanolic extract-treated animals. Oxidative stress was also observed in APAP treated group and reduction in stress was also noted after hepamerz and MO supplementation. Conclusion: It can be concluded that hydroethanolic extract of MO flower has potency as a hepatoprotective agent like hepamerz against APAP-induced hepatotoxicity on albino rats.
背景/目的:研究辣木(MO)花氢乙醇提取物对白化Wistar大鼠(雄性)对乙酰氨基酚(APAP)长期肝毒性的保护作用,并与阳性对照hepamerz进行比较。方法:本试验采用APAP (300mg/kg体重)、APAP (300mg/kg体重)+ MO花氢乙醇提取物(400 mg/kg体重)、APAP (300mg/kg体重)+ hepamerz (150 mg/kg体重)处理不同组动物。结果:分析肝功能,观察肝脏组织病理变化及抗氧化酶和脂质过氧化。apap引起的肝毒性升高了血清谷氨酸草酰乙酸转氨酶(SGOT)、谷氨酸丙酮酸转氨酶(SGPT)、碱性磷酸酶(ALP),降低了血清总蛋白水平,其中MO花水乙醇提取物处理动物血清SGOT、SGPT和ALP显著降低,血清总蛋白显著升高。APAP处理组也观察到氧化应激,补充hepamerz和MO后应激也有所减轻。结论:MO花氢乙醇提取物具有与hepamerz一样的抗apap诱导的白化大鼠肝毒性的肝保护剂作用。
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引用次数: 1
Unfolding the antioxidative and free radicals scavenging potential of stem bark of the wonder tree, Prosopis cineraria (L.) Druce: An in vitro approach 神奇树Prosopis cineraria (L.)茎皮抗氧化和自由基清除能力的研究德鲁斯:一种体外方法
Pub Date : 2020-06-10 DOI: 10.22377/ijgp.v14i1.2865
Veena Sharma
Objective: The present experimental investigation was conducted to unravel and analyze the antioxidant potential of sequential extracts (petroleum ether, chloroform, ethyl acetate, ethanol, hydroethanol, and aqueous) of Prosopis cineraria. Materials and Methods: Quantitative assays for estimating content of phytochemicals (phenols, flavonoids, proanthocyanidins, tannins, and saponins), in vitro antioxidant and free radicals scavenging assays were performed. Reducing power capability of various extracts was done. The research investigated and calculated the half-inhibitory concentration (i.e., IC50) values for various sequential extracts. Results: The research study revealed that hydroethanol extracts showed maximum antioxidant activity and free radical scavenging potential in contrast to other extracts. Hydroethanol extracts of the stem bark of the studied plant had comparatively lower IC50 values in comparison to other extracts. Quantitative measurements of phytoconstituents also revealed that the plant extracts are rich in bioactive constituents and antioxidants. Conclusions: This investigation would encourage researchers toward the extracts of stem bark of P. cineraria, which have significant antioxidative potential. The plant extracts can be further explored for understanding the mechanism underlying the free radicals scavenging, by conducting in vivo studies.
目的:本实验研究揭示并分析棘豆序贯提取物(石油醚、氯仿、乙酸乙酯、乙醇、氢乙醇和水)的抗氧化潜力。材料和方法:定量测定植物化学物质(酚类、黄酮类、原花青素、单宁和皂苷)的含量,进行体外抗氧化和自由基清除试验。考察了各种提取物的降功性能。本研究考察并计算了不同顺序提取物的半抑制浓度(即IC50)值。结果:与其他提取物相比,氢乙醇提取物具有最强的抗氧化活性和清除自由基的能力。与其他提取物相比,研究植物茎皮的氢乙醇提取物的IC50值相对较低。植物成分的定量测定也表明,植物提取物具有丰富的生物活性成分和抗氧化剂。结论:本研究为开发具有显著抗氧化潜力的金针菇茎皮提取物提供了新的思路。通过体内研究,可以进一步探索植物提取物清除自由基的机制。
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引用次数: 0
Identification of phytoconstituents of Cirunakappu by gas chromatography–mass spectrometry 气相色谱-质谱联用法鉴定枳实药材成分
Pub Date : 2020-06-01 DOI: 10.22377/ijgp.v14i03.2941
R. Shakila
Introduction: Cirunakappu is the regional name of Cinnamomum wightii (flower bud) which is also known as Nagakesaram in Tamil. The flower bud of C. wightii is used in many Siddha formulations. The aim of this communication is to identify the phytoconstituents of few column chromatographic fractions of the ethanolic extract of Cirunakappu through gas chromatography–mass spectrometry (GC–MS). Materials and Methods: Cirunakappu flower bud was coarsely powdered, extracted with ethanol at room temperature (yield: 184 g). This extract was subjected to column chromatography over silica gel and eluted with hexane and mixture of hexane and chloroform in increasing polarities. Fraction I eluted with hexane-chloroform (98:2), fraction II eluted with hexane-chloroform (90:10), fraction III eluted with hexane-chloroform (80:20), and fraction IV eluted with hexane-chloroform (50:50) were subjected to GC–MS using the HP 5 MS column of 30 m × 0.25 mm ID and 0.25 μm film thickness analysis. Results and Discussion: Fraction I yielded six peaks in which linalool, γ-muurolene, α-cadinol, γ-sitosterol, and n-hexadecanoic acid were identified. The fraction II separated 15 peaks, among which eugenol, δ-cadinene, epiglobulol, cadina-1,4-diene, triacontyl acetate, and 3,5-bis-tert-butylphenol were identified. Fraction III showed 15 peaks: α-copaene, cetene, (+)-epibicyclo-sesquiphellandrene, tetradecene, 1-octadecene, 1,2-dimethylcyclo hexadecane, 1-docosene, cyclotetracosane, and 1-nanodecene were identified. From fraction IV, γ-sitosterol, cetene, 1,2-diethyl-cyclohexadecane, 1-tetradecene, 1-eicosene, cyclotetracosane, 1-nanodecene, 1-octadecene, 2,4-bis-(1,1-dimethylethyl) phenol, and 1-methyl-2-pyrrolidinone were identified. Conclusion: These chemicals are 1st time explored from this plant.
简介:Cirunakappu是Cinnamomum wightii(花蕾)的地区名称,在泰米尔语中也被称为Nagakesaram。C. wightii的花蕾在许多悉达配方中使用。本通讯的目的是通过气相色谱-质谱联用技术(GC-MS)鉴定Cirunakappu乙醇提取物的几个柱层析组分的植物成分。材料与方法:将芫花花蕾粗磨成粉末,室温乙醇提取(得率:184 g),硅胶柱层析,正己烷和正己烷-氯仿混合物极性渐增洗脱。采用hplc - 5 MS色谱柱,色谱柱ID为30 m × 0.25 mm,膜厚为0.25 μm,色谱柱为hplc - 5 MS,以正己烷-氯仿洗脱的馏分I(98:2)、以正己烷-氯仿洗脱的馏分II(90:10)、以正己烷-氯仿洗脱的馏分III(80:20)和以正己烷-氯仿洗脱的馏分IV(50:50)。结果与讨论:分型1共鉴定出6个峰,分别为芳樟醇、γ-茂烯、α-二醇、γ-谷甾醇和正十六酸。组分ⅱ分离出15个峰,分别鉴定出丁香酚、δ-癸二烯、表绿酚、癸二烯-1,4-二烯、乙酸三acontyl和3,5-双叔丁基酚。组分ⅲ有15个峰,分别为α-copaene、十六烯、(+)-表双环倍半蓝烯、十四烯、1-十八烯、1,2-二甲基环十六烷、1-二十烯、环四烷和1-纳米癸烯。从馏分IV中鉴定出γ-谷甾醇、十六烯、1,2-二乙基环十六烷、1-十四烯、1-二十烯、环四烷、1-纳米十二烯、1-十八烯、2,4-二-(1,1-二甲基乙基)苯酚和1-甲基-2-吡咯烷酮。结论:这些化学成分为首次从该植物中发现。
{"title":"Identification of phytoconstituents of Cirunakappu by gas chromatography–mass spectrometry","authors":"R. Shakila","doi":"10.22377/ijgp.v14i03.2941","DOIUrl":"https://doi.org/10.22377/ijgp.v14i03.2941","url":null,"abstract":"Introduction: Cirunakappu is the regional name of Cinnamomum wightii (flower bud) which is also known as Nagakesaram in Tamil. The flower bud of C. wightii is used in many Siddha formulations. The aim of this communication is to identify the phytoconstituents of few column chromatographic fractions of the ethanolic extract of Cirunakappu through gas chromatography–mass spectrometry (GC–MS). Materials and Methods: Cirunakappu flower bud was coarsely powdered, extracted with ethanol at room temperature (yield: 184 g). This extract was subjected to column chromatography over silica gel and eluted with hexane and mixture of hexane and chloroform in increasing polarities. Fraction I eluted with hexane-chloroform (98:2), fraction II eluted with hexane-chloroform (90:10), fraction III eluted with hexane-chloroform (80:20), and fraction IV eluted with hexane-chloroform (50:50) were subjected to GC–MS using the HP 5 MS column of 30 m × 0.25 mm ID and 0.25 μm film thickness analysis. Results and Discussion: Fraction I yielded six peaks in which linalool, γ-muurolene, α-cadinol, γ-sitosterol, and n-hexadecanoic acid were identified. The fraction II separated 15 peaks, among which eugenol, δ-cadinene, epiglobulol, cadina-1,4-diene, triacontyl acetate, and 3,5-bis-tert-butylphenol were identified. Fraction III showed 15 peaks: α-copaene, cetene, (+)-epibicyclo-sesquiphellandrene, tetradecene, 1-octadecene, 1,2-dimethylcyclo hexadecane, 1-docosene, cyclotetracosane, and 1-nanodecene were identified. From fraction IV, γ-sitosterol, cetene, 1,2-diethyl-cyclohexadecane, 1-tetradecene, 1-eicosene, cyclotetracosane, 1-nanodecene, 1-octadecene, 2,4-bis-(1,1-dimethylethyl) phenol, and 1-methyl-2-pyrrolidinone were identified. Conclusion: These chemicals are 1st time explored from this plant.","PeriodicalId":14055,"journal":{"name":"International Journal of Green Pharmacy","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86038241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Free radical scavenging activity of the plant extracts of Synedrella nodiflora 西洋参植物提取物清除自由基活性的研究
Pub Date : 2020-06-01 DOI: 10.22377/ijgp.v14i03.2936
M. Sangeetha
Introduction: Synedrella nodiflora (L.) Gaertn. (Asteraceae) is a native shrub of Ghana also found in the tropics and subtropics. The plant parts have been used in the treatment of rheumatism and mixtures used in the mitigation of stomach pain, interestingly, it is used in the cure of epilepsy and threatened abortion. Aim: This study focuses at investigating the probable mechanisms of free radical scavenging effects of the ethanolic and chloroform extract of the whole plant. Since the lipid cells are highly susceptible to peroxidase damage, our plant extract can be used to prevent the peroxidation of lipid cells. Material and Methods: With the help of thiobarbituric acid, the extract was screened for percentage inhibition. Similarly, the total reducing power assay was performed with respect to ferrous reduction and absorbance was studied. Results and Discussion: The extract with the increase in the concentration showed increase in the activity. Among all, the highest concentration of 200 μg/ml showed the greatest response and was relatively close to the standards used. In total reducing power and lipid peroxidation assay, ethanolic extracts of the plant seemed to show quite equal results.
简介:野地Synedrella nodiflora (L.)Gaertn。(菊科)是加纳的一种原生灌木,在热带和亚热带也有发现。植物部分已被用于治疗风湿病和用于减轻胃痛的混合物,有趣的是,它被用于治疗癫痫和先兆流产。目的:本研究主要探讨全植物乙醇和氯仿提取物清除自由基的可能机制。由于脂质细胞极易受到过氧化物酶的损伤,我们的植物提取物可以用来防止脂质细胞的过氧化。材料与方法:利用硫代巴比妥酸对提取液进行百分比抑制筛选。同样,总还原力测定进行了有关亚铁还原和吸光度的研究。结果与讨论:提取物的活性随浓度的增加而增加。其中,最高浓度为200 μg/ml的反应效果最好,与使用标准比较接近。在总还原力和脂质过氧化测定中,该植物的乙醇提取物似乎显示出相当相同的结果。
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引用次数: 0
Antihyperlipidemic activity of ethanolic extract of Macrotyloma uniflorum (Lam.) Verdc. leaves and stems on high-fat diet-induced hyperlipidemia 单花大叶乙醇提取物的降血脂活性研究Verdc。叶和茎对高脂肪饮食诱导的高脂血症
Pub Date : 2020-03-16 DOI: 10.22377/IJGP.V14I1.2798
G. Vasantha
Background: Hypercholesterolemia is the state depicted by expanded greasy substances called lipids, rise in plasma total cholesterol (TC) and triglyceride (TG) levels, it is additionally called hyperlipoproteinemia. Materials and Methods: The present study was designed to investigate the hypolipidemic effect of ethanolic extract of Macrotyloma uniflorum leaves and stems (EMULS) in high-fat diet (cholesterol 2%, sodium cholate 1%, sucrose 48%, peanut oil, methionine 4%, and 47% normal laboratory feed) induced hyperlipidemia. EMULS was administered in three doses of 100 mg/kg/day p.o., 200 mg/kg/day p.o, and 400 mg/kg/day p.o each for 30 days. Results: Simultaneous administration of EMULS significantly (P < 0.01) prevents the rise in serum levels of Total Cholesterol (TCs), Triglycerides (TGs), Low Density Lipoprotein Cholesterol (LDL-C) and Very Low Density Lipoprotein Cholesterol (VLDL-C) whereas significant (p<0.05) increases in the level of High Density Lipoprotein Cholesterol (HDL-C). Conclusion: Based on the results we conclude the use of leaves and stems extract of Macrotyloma uniflorum has preventive and curative effect against hyperlipidemia.
背景:高胆固醇血症是一种由脂质膨胀、血浆总胆固醇(TC)和甘油三酯(TG)水平升高所描述的状态,它也被称为高脂蛋白血症。材料与方法:研究在高脂肪饲粮(胆固醇2%、胆酸钠1%、蔗糖48%、花生油4%、蛋氨酸4%、实验室正常饲料47%)诱导的高脂血症中,大叶草叶茎乙醇提取物(EMULS)的降血脂作用。以100 mg/kg/day p.o、200 mg/kg/day p.o和400 mg/kg/day p.o三种剂量给药,连续30天。结果:同时给药乳剂能显著(P < 0.01)抑制血清总胆固醇(tc)、甘油三酯(tg)、低密度脂蛋白胆固醇(LDL-C)和极低密度脂蛋白胆固醇(VLDL-C)水平升高,显著(P <0.05)抑制高密度脂蛋白胆固醇(HDL-C)水平升高。结论:在此基础上,得出了大叶草茎提取物对高脂血症有一定的预防和治疗作用。
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引用次数: 0
The antidiabetic effect of leaf and stem extract of Crossandra infundibuliformis in alloxan-induced diabetic rats and diabetic nephropathy in male rats 黄芪叶茎提取物对四氧嘧啶诱导的糖尿病大鼠及糖尿病肾病的抗糖尿病作用
Pub Date : 2020-03-16 DOI: 10.22377/IJGP.V14I1.2796
G. Vasantha
Background: The prevalence of diabetes is growing in the world’s population. The epidemic of disease is rising in the population of India and other countries. Many herbal plants are in use for the management of diabetes till today. They are being advantageous with the lesser side effects and high therapeutic potential than the standard antidiabetic drugs. Materials and Methods: The present research is to investigate the antidiabetic activity and antioxidant effect of ethanolic extract of Crossandra infundibuliformis leaves and stems (ECILS) in alloxaninduced diabetic rats. Diabetes is induced in the experimental animals by the administration of alloxan (150 mg/kg i.p) for a week. The total treatment period was about 30 days. Blood glucose levels were tested using standard blood glucometer. This activity also includes the estimation of biochemical parameters and in vivo antioxidant parameters such as lipid peroxidation, reduced glutathione, and catalase. Histopathological studies were performed on liver and kidney. Results: The diabetic + ECILS rats experienced a significant reduction in glucose, total cholesterol, triglycerides, and increase in high-density lipoproteins compared to disease control. Conclusion: These results demonstrate that C. infundibuliformis possess antidiabetic activity, potent antioxidant activity, and can be used in future studies for the estimation of distinct phytochemicals with the antidiabetic activity.
背景:糖尿病的患病率在世界人口中呈上升趋势。这种流行病在印度和其他国家的人口中呈上升趋势。直到今天,许多草本植物仍被用于治疗糖尿病。与标准的降糖药相比,它们具有副作用小、治疗潜力大的优点。材料与方法:研究四氧嘧啶诱导的糖尿病大鼠的抗糖尿病活性和抗氧化作用。实验动物给药四氧嘧啶(150mg /kg i.p)一周,诱导糖尿病。总治疗期约30 d。使用标准血糖仪检测血糖水平。这种活性还包括估计生化参数和体内抗氧化参数,如脂质过氧化、还原性谷胱甘肽和过氧化氢酶。肝、肾行组织病理学检查。结果:与疾病对照组相比,糖尿病+ ECILS大鼠的葡萄糖、总胆固醇、甘油三酯显著降低,高密度脂蛋白显著增加。结论:本研究结果表明,金盏花具有抗糖尿病活性和较强的抗氧化活性,可用于进一步研究具有抗糖尿病活性的植物化学物质。
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引用次数: 1
Phytochemical screening and in vitro antioxidant study of Magnolia vine, Muntingia calabura, and Alangium salviifolium fruits 玉兰、木兰花和丹参果实的植物化学筛选及体外抗氧化研究
Pub Date : 2020-03-16 DOI: 10.22377/IJGP.V14I1.2797
P. Reddy
Objective: This study was undertaken to investigate the antioxidant activity of methanolic extract of Schisandra (magnolia vine) (MEMV), Muntingia calabura (MEMC), and Alangium salviifolium (MEAS) fruits. Materials and Methods: Rindless fruits were subjected to treatment with pure methanol in a sufficient quantity at room temperature for a period of one week with intermittent shaking. The resultant extract then underwent double filtration, first through a cotton plug and then through Whatman filters paper No. 1. Evaporation under reduced pressure was carried out on the filtrate to get a dark green viscous mass which was stored till use at 4°C. Hydroxyl radical (OH) scavenging activity determination of reducing power, lipid peroxidation induced by carbon tetrachloride, and inhibitory test on protein oxidative modification were carried out for evaluation of the antioxidant activity of MEMV, MEMC, and MEAS fruits generated methanolic extract. Results: The inhibitory ratio of MEMV, MEMC, and MEAS on albumin oxidative modification was as high as 78.94 at a concentration of 1000μg/ml that showed an increasing proportionality trend with concentration. The reducing power of MEMV, MEMC, and MEAS increased with increasing concentration of MEMV, MEMC, and MEAS. Conclusion: All the tested concentrations of MEMV, MEMC, and MEAS showed significant (P < 0.001) activity than control, the MEMV, MEMC, and MEAS (at all tested doses 100 μg, 200 μg, and 300 μg) significantly (P < 0.001) showed scavenging activity on OHs, which were generated by the ethylenediaminetetraacetic acid/H2O2 system, in comparison to control. A similar increase in percent scavenging of OH radicals by MEMV, MEMC, and MEAS was observed with an increase in dose.
目的:研究五味子(magnolia vine) (MEMV)、木兰花(Muntingia calabura) (MEMC)和丹参(Alangium salviifolium)果实甲醇提取物的抗氧化活性。材料与方法:用足量的纯甲醇在室温下处理无皮果实,间歇摇动一周。所得的萃取物经过两次过滤,首先通过棉塞,然后通过Whatman 1号滤纸。对滤液进行减压蒸发,得到墨绿色粘性物质,在4℃下保存待用。对MEMV、MEMC和MEAS水果甲醇提取物的抗氧化活性进行了评价,并对其OH自由基(OH)清除能力、四氯化碳诱导的脂质过氧化和蛋白质氧化修饰的抑制试验进行了评价。结果:在浓度为1000μg/ml时,MEMV、MEMC和MEAS对白蛋白氧化修饰的抑制比均高达78.94,且随浓度呈比例增加趋势。MEMV、MEMC和MEAS的还原能力随着MEMV、MEMC和MEAS浓度的增加而增加。结论:MEMV、MEMC和MEAS的活性均显著高于对照组(P < 0.001), MEMV、MEMC和MEAS在100、200和300 μg剂量下对乙二胺四乙酸/H2O2体系产生的羟基自由基的清除活性均显著高于对照组(P < 0.001)。随着剂量的增加,MEMV、MEMC和MEAS清除OH自由基的百分比也有类似的增加。
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引用次数: 1
Comparative evaluation of antioxidant and hemolytic potential of ornamental plants Ficus benjamina, Antigonon leptopus, and Amaranthus tricolor 观赏植物榕树、凤尾藤和三色苋菜抗氧化和溶血潜能的比较评价
Pub Date : 2020-03-03 DOI: 10.22377/ijgp.v14i1.2786
B. Ramesh
Aim: Ficus benjamina, Amaranthus tricolor, and Antigonon leptopus are belonging to the families Moraceae, Amaranthaceae, and Polygonaceae, respectively. Materials and Methods: The dried powder of these leaves was extracted with methanol, chloroform, petroleum ether, diethyl ether, and ethyl acetate. These extracts were tested to antioxidant free radical scavenging assay and hemolytic activity. Evaluation of antioxidant activity of these extracts was performed using two assays such as 2,2,-diphenyl-picrylhydrazyl (DPPH) and 2,2’-azinobis-3-ethyl-benzothiazoline-6-sulfonic acid (ABTS) free radical scavenging assay using quercetin as standard. Results: In DPPH radical scavenging assay, methanol, chloroform, petroleum ether, diethyl ether, and ethyl acetate showed remarkable antioxidant activity having respective IC50 values such as 31.44, 38.21, 42.2, 26.02, and 17.40 μg/ml, respectively. In ABTS radical scavenging assay, petroleum ether, diethyl ether, methanol, and ethyl acetate showed remarkable antioxidant activity having respective IC50 values such as 13.7, 77.67, 13.90, and 18.33 μg/ml, respectively. Hemolytic activity showed positive results for all the plant extracts tested for their hemolysis abilities. Conclusion: The study concludes that, among the tested plant extracts, ethyl acetate extract of A. leptopus showed highest antioxidant potential. This study gives a summary of the antioxidant and antihaemolytic potential of different extracts of F. benjamina, A. leptopus and A. tricolor.
目的:榕树、三色苋菜和竹竹分别属于桑科、苋菜科和蓼科。材料与方法:用甲醇、氯仿、石油醚、二乙醚、乙酸乙酯等溶剂提取其干粉。并进行了抗氧化自由基清除试验和溶血活性试验。采用2,2,-二苯基-吡啶肼(DPPH)和2,2 ' -氮唑-3-乙基-苯并噻唑-6-磺酸(ABTS)自由基清除试验,以槲皮素为标准进行抗氧化活性评价。结果:甲醇、氯仿、石油醚、乙醚、乙酸乙酯具有较强的抗氧化活性,IC50值分别为31.44、38.21、42.2、26.02和17.40 μg/ml。在ABTS自由基清除实验中,石油醚、乙醚、甲醇和乙酸乙酯具有显著的抗氧化活性,IC50值分别为13.7、77.67、13.90和18.33 μg/ml。所有植物提取物的溶血活性测试结果均为阳性。结论:在受试植物提取物中,leplepus乙酸乙酯提取物的抗氧化能力最强。本研究综述了本杰明草、竹叶草和三色草不同提取物的抗氧化和抗溶血作用。
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引用次数: 1
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International Journal of Green Pharmacy
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