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Cytotoxicity effect of prenylated flavonoids from Stingless Bee (Wallacetrigona insica) propolis in some cancer cell lines 无刺蜂(Wallacetrigona insica)蜂胶中烯酰化黄酮对某些癌细胞的细胞毒性作用
Q3 Medicine Pub Date : 2023-05-30 DOI: 10.5604/01.3001.0053.6135
R. Ramadhan, E. Rosamah, Irawan Wijaya Kusuma, H. Kuspradini, Yhiya Amen, Yong-Ung Kim, Kuniyoshi Shimizu, Enos Tangke Arung
Propolis is a bee product traditionally used for therapy in several diseases. The therapeutic activities of propolis, such as antioxidant, antifungal, antibacterial, and anti-inflammatory, are commonly known. Propolis from the stingless bee (Wallacetrigonainsica) showed promising bioactivity essential for the criteria.
蜂胶是一种传统上用于治疗多种疾病的蜂产品。蜂胶的治疗活性,如抗氧化、抗真菌、抗菌和抗炎,是众所周知的。来自无刺蜂(Wallacetriangainsica)的蜂胶显示出对该标准至关重要的有希望的生物活性。
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引用次数: 0
Antibacterial activity and molecular docking study of Coptis teeta 牙黄连的抗菌活性及分子对接研究
Q3 Medicine Pub Date : 2023-05-30 DOI: 10.5604/01.3001.0053.6132
P. Das, D. -, A. Nayak, P. -, P. K, N. K., A. Kiruba
Objective: One of the declining medicinal plant species is Coptis teeta Wall, found solely in eastern parts ofIndia and China. The major chemical constituents present in the plant are berberine, pentadecanoic acid,copisine, palmatine, columbamine, epiberberineand jateorrhizine. The aim of present study is screening thephytoconstitutes in methanolic extract of roots by GC-MS analysis and isolating the pentadecanoic acid,aligned with DNA gyrase subunit B protein target involved in bacterial infection by carrying out moleculardocking.Methods: Each concentrate of Coptis teeta was evaluated for antibacterial action by plate disseminationtechnique against gram-positive and gram-negative microorganisms.GC-MS was performed for theidentification of various phytochemical constituents present in methanolic extracts of Coptis teeta.Out ofvarious chemical constituents,pentadecanoic acid was isolated and characterised by IR, 1HNMR and MASSspectroscopy.The isolated pentadecanoic acid was screened against bacterial strains such as Staphylococcusaureus, Staphylococcus epidermidis, Pseudomonas aeruginosa and Escherichia colihave shown good antibacterialactivity.Results: Column chromatography was performed for separation andGC-MS showed the presence ofpentadecanoic acid by a significant spot on methanolic extract, characterized by IR, NMR and MASS. Themethanolic extract and isolated compoundhas shown good antibacterial activity.Protein-ligand dockingwas achieved between the protein PDBID: 1KZM and pentadecanoic acid which showed a good affinityindicating its potent inhibiting action.Conclusion:In binding studies, ligand showed an interaction with amino acids residue His 170, Ala 140 andSer 246 of 1KZM which indicated the inhibition of bacterial growth.
目的:黄连是一种日益减少的药用植物,仅在印度和中国东部地区发现。该植物中的主要化学成分是黄连素、十五烷酸、可的松、巴马汀、小檗碱、黄檗碱和药根碱。本研究的目的是通过GC-MS分析筛选根甲醇提取物中的植物成分,并通过分子对接分离与细菌感染相关的DNA旋转酶亚基B蛋白靶点对准的十五烷酸。方法:采用平板扩散法测定黄连各浓缩液对革兰氏阳性菌和革兰氏阴性菌的抗菌作用。采用气相色谱-质谱联用技术对牙黄连甲醇提取物中的各种植物化学成分进行了鉴定。从各种化学成分中分离得到十五烷酸,并用红外光谱、核磁共振氢谱和质谱对其进行了表征。分离得到的十五烷酸对葡萄球菌、表皮葡萄球菌、铜绿假单胞菌和大肠杆菌等菌株具有良好的抗菌活性。结果:采用柱色谱法进行分离,气相色谱-质谱法在甲醇提取物上发现一个显著的斑点存在十五烷酸,并用红外光谱、核磁共振和质谱对其进行了表征。蛋白质PDBID:1KZM与十五烷酸之间实现了蛋白质配体对接,显示出良好的亲和力,表明其具有强大的抑制作用。结论:在结合研究中,配体与1KZM的His 170、Ala 140和Ser 246氨基酸残基存在相互作用,表明其对细菌生长具有抑制作用。
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引用次数: 0
Withania somnifera a journey from traditionalrejuvenator to anti-SARS-CoV-2 remedy 从传统的返老还童剂到抗sars - cov -2药物的旅程
Q3 Medicine Pub Date : 2023-05-30 DOI: 10.5604/01.3001.0053.7210
K. Ashokkumar, A. Pandian, M. Baskar, M. Karthik, M. Murugan, Ruchi Badoni Semwal, Deepak Kumar Semwal
Ashwagandha (Withania somnifera L. Dunal) roots have been used in Ayurveda for fever, asthma, arthritis,rheumatism, inflammation, tuberculosis, mental diseases, and male sexual disorders. Phytochemical studiesrevealed that the plant mainly contains alkaloids (withanine, sominiferine, tropine, isopelletierine andanaferine), and steroidal lactones (withanolides A-Y, withaferine A, withasominiferols A-C, withanone and sitoindosides) as bioactive metabolites. These constituents and extracts have several pharmacologicalactivities, including antioxidant, antitumour, antimicrobial, antivenom, and anti-parkinsonian activities.The present review presents updated information on ashwagandha based on its phytochemistry andpharmacology. The plant and many of its secondary metabolites have been found to be effective in thetreatment of many human ailments. However, further investigations are still needed to understand the exactmechanism of their actions.
在阿育吠陀中,印度蒺藜(Withania somnifera L. Dunal)的根被用来治疗发烧、哮喘、关节炎、风湿病、炎症、肺结核、精神疾病和男性性功能障碍。植物化学研究表明,该植物主要含有生物碱(茶氨酸、半胱氨酸、托品碱、异芥子碱和茶茶碱)和甾体内酯(茶茶素A- y、茶茶素A、茶茶素A- c、茶茶酮和谷甾醇苷)作为生物活性代谢产物。这些成分和提取物具有多种药理活性,包括抗氧化、抗肿瘤、抗菌、抗蛇毒血清和抗帕金森病活性。本文从植物化学和药理的角度综述了印度葫芦的最新研究进展。人们发现这种植物及其许多次生代谢产物对治疗许多人类疾病有效。然而,仍需要进一步的研究来了解其作用的确切机制。
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引用次数: 0
Geranyl flavanone from Feronia limonia (L.) Swingle 来自Feronia limonia的Geranyl flavanone (L.)Swingle
Q3 Medicine Pub Date : 2022-12-01 DOI: 10.2478/hepo-2022-0022
Sumia Urai̇nab, S. Kamal, Sevinj Musayeva Vagif, Arifa Mahreen, Saba Zafar
Summary Introduction: Feronia limonia (synonyms: Feronia elephantum, Hesperethusa crenulata, Limonia acidissima Linn, Schinus limonia) is a member of Rutaceae family. F. limonia is an aesthetically pleasing plant with various medicinal and nutraceutical properties. Objective: The primary objective of this research was to determine the flavonoid from F. limonia. Methods: Different solvents have been soxhleted to the roots of F. limonia powder. Column chromatography was performed using silica gel, a yellow amorphous solid was obtained from ethyl acetate extract after elution with hexane: ethyl acetate (4:8). Results: We have successfully isolated a unique geranyl flavanone from the roots of F. limonia. The structure was verified as 8-(2′′,3′′-epoxy-3′′-methyl butyl)-4′-prenyloxy flavanone-7-O-6′′′′-acetyl β-D-glucopyranoside. Conclusion: According to the findings based upon spectroscopic analysis, a hitherto unknown flavanone was isolated in the F. limonia.
简介:柠檬铁(Feronia limonia,别名:Feronia elephantum, Hesperethusa crenulata, limonia acidissima Linn, Schinus limonia)是芸香科植物。柠檬草是一种美观的植物,具有多种药用和营养价值。目的:测定枳实中黄酮类化合物的含量。方法:用不同的溶剂对枳实根进行浸提。硅胶柱层析,乙酸乙酯萃取物经正己烷:乙酸乙酯(4:8)洗脱,得到黄色无定形固体。结果:成功地从苦楝根中分离到一种独特的香叶黄酮。结构为8-(2′,3′-环氧-3′-甲基丁基)-4′-丙烯氧基黄酮-7- o -6′-乙酰基β- d -葡萄糖吡喃苷。结论:根据光谱分析结果,从柠檬草中分离到一种未知的黄酮。
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引用次数: 0
Synthetic seeds technology of Salvia officinalis as a method for short-term storage and in vitro propagation of valuable genotypes 鼠尾草合成种子技术作为有价值基因型的短期储存和离体繁殖方法
Q3 Medicine Pub Date : 2022-12-01 DOI: 10.2478/hepo-2022-0024
Aleksandra Deja
Summary Introduction: The technological advancements in the production of synthetic seeds are critical for the preservation of valuable genotypes of many herbal plants, including Salvia officinalis – sage. Objective: The aim of this study was the production, storage and conversion of artificial sage seeds. The technology of synthetic seeds is placing explants capable of regeneration into plants in a protective casing. Methods: Apical and axillary buds were encapsulated with 1.2% sodium alginate solution, and then dripped in 200 mM CaCl2 solution. Artificial seeds were stored at 4°C for 30 days and then converted on MS medium containing 0.3 mg/l of BAP. Results: The synthetic seeds technology made it possible to obtain a high level of seeds conversion into plants using apical buds (85.0%), and slightly lower in the case of side buds (62.5%). Conclusion: The fully developed technology of synthetic seeds made it possible to obtain a high level of plant viability, which may prove useful for the storage of valuable genotypes of sage.
摘要简介:合成种子生产技术的进步对于保存包括鼠尾草在内的许多有价值的草本植物基因型至关重要。目的:研究人工鼠尾草种子的生产、储存和转化。人工合成种子的技术是将能够再生的外植体植入植物的保护性外壳中。方法:用1.2%海藻酸钠溶液包封根尖芽和腋芽,然后滴入200 mM CaCl2溶液。人工种子在4℃下保存30 d,然后在含0.3 mg/l BAP的MS培养基上转化。结果:人工合成种子技术使种子转化成植株的最高转化率达到85.0%,而侧芽的转化率略低(62.5%)。结论:成熟的合成种子技术使合成种子获得较高的植物活力成为可能,为保存有价值的鼠尾草基因型提供了可能。
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引用次数: 0
Morphological and biochemical responses of selected Ocimum species under drought 干旱条件下部分竹属植物的形态和生化响应
Q3 Medicine Pub Date : 2022-12-01 DOI: 10.2478/hepo-2022-0019
S. Mulugeta, B. Gosztola, P. Radácsi
Summary Introduction: Drought stress is known to change biochemical activities resulting in altered plant growth and development. Objective: Due to the shortage of research evidence in a certain taxa of basil, it is imperative to examine the relationship between drought stress and morphological changes as well as essential oil accumulation. Methods: An open field experiment was conducted in 2020 to determine the effects of drought stress on the morphological and biochemical responses of selected Ocimum species. Five basil species, namely O. basilicum ‘Genovese’, O. basilicum ‘Ohre’, O. × africanum, O. americanum, O. selloi, and O. sanctum ‘Krishna’ were grown under irrigated (control) and non-irrigated (drought stress treatment) plots with two block replications. Results: The result showed that irrigation had a positive effect on production. Consequently, fresh and dry biomass yields were higher on irrigated plots by 39% and 33%, respectively. No significant changes were detected between the treatments in essential oils (EO) yield and EO composition of major compounds. However, a slight increase in camphor (O. × africanum), nerol (O. americanum), and trans-β-caryophyllene (O. sanctum ‘Krishna’) ratios were observed under irrigation treatments. On the other hand, drought stress increased EO content, polyphenol content, and antioxidant capacity. Furthermore, drought stress had a positive effect on the ratios of 1,8-cineole (O. × africanum), and eugenol (O. sanctum ‘Krishna’). There is only a slight increase in EO content under drought stress, which is not comparable to the significant yield reduction recorded. Morphological and biochemical variations were also detected among basil species. Accordingly, higher biomass (616.33 g/plant) and EO yield (3.72 ml/100 g) among the species were obtained from O. basilicum ‘Genovese’ and O. × africanum, respectively. Conclusion: Irrigation is imperative for maximizing biomass and EO yield of tested basil species.
简介:众所周知,干旱胁迫会改变植物的生化活性,从而改变植物的生长发育。目的:由于缺乏对罗勒某些分类群的研究证据,因此有必要研究干旱胁迫与罗勒形态变化以及精油积累之间的关系。方法:在2020年进行了一项露地试验,以确定干旱胁迫对所选Ocimum物种形态和生化反应的影响。在灌溉(对照)和非灌溉(干旱胁迫处理)地块上种植了五种罗勒,即O.basilicum‘Genovese’、O.basilicum‘Ohre’、O.×africanum、O.americanum、O.selloi和O.sanctum‘Krishna’,并进行了两次块区复制。结果:灌溉对生产有积极影响。因此,灌溉地块的新鲜和干生物量产量分别高出39%和33%。在精油(EO)产量和主要化合物的EO组成的处理之间没有检测到显著的变化。然而,在灌溉处理下,观察到樟脑(O.×africanum)、橙花醇(O.americanum)和反式-β-石竹烯(O.sanctum‘Krishna’)的比例略有增加。另一方面,干旱胁迫增加了EO含量、多酚含量和抗氧化能力。此外,干旱胁迫对1,8-桉叶素(O.×africanum)和丁香酚(O.sanctum‘Krishna’)的比例有积极影响。在干旱胁迫下,EO含量仅略有增加,这与记录的显著减产无法相比。罗勒品种间也存在形态和生化变异。因此,罗勒和非洲罗勒分别获得了较高的生物量(616.33g/株)和EO产量(3.72ml/100g)。结论:灌溉对于最大限度地提高被测罗勒物种的生物量和EO产量至关重要。
{"title":"Morphological and biochemical responses of selected Ocimum species under drought","authors":"S. Mulugeta, B. Gosztola, P. Radácsi","doi":"10.2478/hepo-2022-0019","DOIUrl":"https://doi.org/10.2478/hepo-2022-0019","url":null,"abstract":"Summary Introduction: Drought stress is known to change biochemical activities resulting in altered plant growth and development. Objective: Due to the shortage of research evidence in a certain taxa of basil, it is imperative to examine the relationship between drought stress and morphological changes as well as essential oil accumulation. Methods: An open field experiment was conducted in 2020 to determine the effects of drought stress on the morphological and biochemical responses of selected Ocimum species. Five basil species, namely O. basilicum ‘Genovese’, O. basilicum ‘Ohre’, O. × africanum, O. americanum, O. selloi, and O. sanctum ‘Krishna’ were grown under irrigated (control) and non-irrigated (drought stress treatment) plots with two block replications. Results: The result showed that irrigation had a positive effect on production. Consequently, fresh and dry biomass yields were higher on irrigated plots by 39% and 33%, respectively. No significant changes were detected between the treatments in essential oils (EO) yield and EO composition of major compounds. However, a slight increase in camphor (O. × africanum), nerol (O. americanum), and trans-β-caryophyllene (O. sanctum ‘Krishna’) ratios were observed under irrigation treatments. On the other hand, drought stress increased EO content, polyphenol content, and antioxidant capacity. Furthermore, drought stress had a positive effect on the ratios of 1,8-cineole (O. × africanum), and eugenol (O. sanctum ‘Krishna’). There is only a slight increase in EO content under drought stress, which is not comparable to the significant yield reduction recorded. Morphological and biochemical variations were also detected among basil species. Accordingly, higher biomass (616.33 g/plant) and EO yield (3.72 ml/100 g) among the species were obtained from O. basilicum ‘Genovese’ and O. × africanum, respectively. Conclusion: Irrigation is imperative for maximizing biomass and EO yield of tested basil species.","PeriodicalId":12990,"journal":{"name":"Herba Polonica","volume":"68 1","pages":"1 - 10"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45161980","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: 2
Chemical profiles and biological activities of acetone extracts of Curcuma xanthella 姜黄丙酮提取物的化学性质及生物活性研究
Q3 Medicine Pub Date : 2022-12-01 DOI: 10.2478/hepo-2022-0021
H. Van, T. Thang, Thi Hang Nguyen, Nhat Tuong Huynh, T. Pham, L. Quoc, N. Trinh, Van-Son Le, Q. Nguyen, T. Le, Nga Nguyen-Phi
Summary Introduction: Curcuma xanthella Škorničk. is a rare species. Recently, it has been described as a new species from Vietnam. Objective: In this study, the chemical composition of the acetone extract as well as the antibacterial and antioxidant effects of acetone extract and its fractions such as n-hexane, chloroform and ethyl acetate of C. xanthella were investigated for the first time. Methods: The chemical components obtained from the acetone extract of C. xanthella were performed by using gas chromatography/mass spectrometry assays. Disc diffusion assay was used to assess the antibacterial effects of studied samples. Free radical scavenging ability of the extracts was determined by DPPH free radical scavenging (DPPH RSA) assay. Results: Sixty chemical compounds were reported from C. xanthella, of which 1,8-cineole (11.3%), n-hexadecanoic acid (11.13%), stigmasterol (8.2%), γ-sitosterol (6.78%) and neophytadiene (6.71%) were the major compounds. The acetone extract and its fractions such as n-hexane and ethyl acetate were found to be effective against eight oral bacteria, including Escherichia coli, Klebsiella pneumoniae, Shigella flexneri, Salmonella enteritidis, Salmonella typhimurium, Pseudomonas aeruginosa, Bacillus cereus and Staphylococcus aureus. The acetone extract and its fractions such as n-hexane, chloroform and ethyl acetate of C. xanthella showed DPPH radical scavenging activity with IC50 value of 6.60, 2.38, 8.45 and 3.42 mg/ml, respectively. Conclusion: Sixty chemical constituents were identified in the acetone extract of C. xanthella. The acetone extract and its fractions showed antibacterial effect and DPPH radical scavenging activity.
简介:姜黄Škorničk。是稀有物种。最近,它被描述为来自越南的新种。目的:首次对黄原菌丙酮提取物的化学成分及丙酮提取物及其组分正己烷、氯仿和乙酸乙酯的抑菌和抗氧化作用进行研究。方法:采用气相色谱/质谱法对黄原菌丙酮提取物的化学成分进行分析。采用圆盘扩散法测定样品的抑菌效果。采用DPPH自由基清除(DPPH RSA)法测定提取物的自由基清除能力。结果:共检出60种化合物,其中1,8-桉叶油脑(11.3%)、正十六酸(11.13%)、豆甾醇(8.2%)、γ-谷甾醇(6.78%)和新叶二烯(6.71%)为主要化合物。丙酮提取物及其正己烷、乙酸乙酯等组分对大肠杆菌、肺炎克雷伯菌、福氏志贺氏菌、肠炎沙门氏菌、鼠伤寒沙门氏菌、铜绿假单胞菌、蜡样芽孢杆菌和金黄色葡萄球菌等8种口腔细菌均有较好的抑菌效果。黄芩丙酮提取物及其组分正己烷、氯仿和乙酸乙酯具有清除DPPH自由基的活性,IC50值分别为6.60、2.38、8.45和3.42 mg/ml。结论:黄原草丙酮提取物中鉴定出60种化学成分。丙酮提取物及其组分具有抗菌作用和清除DPPH自由基的活性。
{"title":"Chemical profiles and biological activities of acetone extracts of Curcuma xanthella","authors":"H. Van, T. Thang, Thi Hang Nguyen, Nhat Tuong Huynh, T. Pham, L. Quoc, N. Trinh, Van-Son Le, Q. Nguyen, T. Le, Nga Nguyen-Phi","doi":"10.2478/hepo-2022-0021","DOIUrl":"https://doi.org/10.2478/hepo-2022-0021","url":null,"abstract":"Summary Introduction: Curcuma xanthella Škorničk. is a rare species. Recently, it has been described as a new species from Vietnam. Objective: In this study, the chemical composition of the acetone extract as well as the antibacterial and antioxidant effects of acetone extract and its fractions such as n-hexane, chloroform and ethyl acetate of C. xanthella were investigated for the first time. Methods: The chemical components obtained from the acetone extract of C. xanthella were performed by using gas chromatography/mass spectrometry assays. Disc diffusion assay was used to assess the antibacterial effects of studied samples. Free radical scavenging ability of the extracts was determined by DPPH free radical scavenging (DPPH RSA) assay. Results: Sixty chemical compounds were reported from C. xanthella, of which 1,8-cineole (11.3%), n-hexadecanoic acid (11.13%), stigmasterol (8.2%), γ-sitosterol (6.78%) and neophytadiene (6.71%) were the major compounds. The acetone extract and its fractions such as n-hexane and ethyl acetate were found to be effective against eight oral bacteria, including Escherichia coli, Klebsiella pneumoniae, Shigella flexneri, Salmonella enteritidis, Salmonella typhimurium, Pseudomonas aeruginosa, Bacillus cereus and Staphylococcus aureus. The acetone extract and its fractions such as n-hexane, chloroform and ethyl acetate of C. xanthella showed DPPH radical scavenging activity with IC50 value of 6.60, 2.38, 8.45 and 3.42 mg/ml, respectively. Conclusion: Sixty chemical constituents were identified in the acetone extract of C. xanthella. The acetone extract and its fractions showed antibacterial effect and DPPH radical scavenging activity.","PeriodicalId":12990,"journal":{"name":"Herba Polonica","volume":"2019 1","pages":"30 - 38"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69210233","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
Evaluation of detoxification of aflatoxin-b1 by using Ag nanoparticles of oil extracts user prepared by using some medical herbs 用一些草药制备的油提取物银纳米颗粒对黄曲霉毒素b1的解毒作用评价
Q3 Medicine Pub Date : 2022-12-01 DOI: 10.2478/hepo-2022-0020
Mokdad. M. Jawad, H. Attiya, L. A. Al-Zubaidi
Summary Introduction: Herbs or plants are used for a variety of purposes, including nutrition, medicinal and in the beverage industry, beverages, coloring, food preservatives, insect repellants and cosmetics. Methods: Many plants were obtained from local markets and the oil was extracted with hexane at a concentration of 75%. Green silver nanoparticles were prepared. The nanoparticles were characterized using various techniques, including scanning electron microscopy, UV visible spectroscopy, Fourier transform infra-red, energy dispersive spectroscopy, and zeta potential analyzer. Results: The results showed small, smooth spherical nanoparticles, ranging between 57.41–88.00 nm, as well as the distribution of electric charges evenly on the surface of the nanoparticles, which acquired effective agents for nanoparticles against aflatoxin-b1. The effectiveness of green nanoparticles against aflatoxin-b1 by using high-performance liquid chromatography technology detected its concentration. The standard concentration of aflatoxin-b1 was (20) ppb. The results of the activity of plant oil extracts of T-thyme, rosemary-R, mint-M and eucalyptus-E reached (0.104, 1.586, 1.083 and 1.067) ppb, while it appears in the nanoparticle activity of T, R, M and E were as (0.065, 0.226, 0.377 and 0.702) ppb respectively. Conclusion: We concluded that green Ag nanoparticles are efficient in processing or eliminating aflatoxin-b1 and can be produced at very low concentrations compared to the concentrations of plant extracts prepared.
简介:草药或植物用于多种用途,包括营养、药用和饮料行业、饮料、色素、食品防腐剂、驱虫剂和化妆品。方法:从当地市场上获得许多植物,并用浓度为75%的己烷提取油。制备了绿色银纳米粒子。使用各种技术对纳米颗粒进行了表征,包括扫描电子显微镜、紫外可见光谱、傅立叶变换红外光谱、能量色散光谱和ζ电位分析仪。结果:结果显示,纳米颗粒细小、光滑,范围在57.41–88.00 nm之间,电荷均匀分布在纳米颗粒表面,从而获得了有效的抗黄曲霉毒素b1的纳米颗粒制剂。采用高效液相色谱技术检测绿色纳米粒子对黄曲霉毒素b1的浓度。黄曲霉毒素b1的标准浓度为(20)ppb。结果表明,T、迷迭香-R、薄荷-M和桉树-E的植物油提取物的活性分别达到(0.104、1.586、1.083和1.067)ppb,而T、R、M和E的纳米颗粒活性分别为(0.065、0.226、0.377和0.702)ppb。结论:我们得出的结论是,绿色Ag纳米颗粒在处理或消除黄曲霉毒素b1方面是有效的,并且与所制备的植物提取物相比,可以在非常低的浓度下产生。
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引用次数: 1
Effect of ethanolic extract of rosella (Hibiscus sabdariffa L.) on vital signs, kidney, and liver safety 紫苏乙醇提取物对生命体征、肾脏和肝脏安全性的影响
Q3 Medicine Pub Date : 2022-09-01 DOI: 10.2478/hepo-2022-0018
L. H. Nurani, E. Darmawan, Akrom, A. Guntarti, Warsi, C. A. Edityaningrum, N. Harun, Dini Mardhiyani, Nur Azizah Syahrana, N. Azizah, Siti Setianingsih, A. Rohman
Summary Introduction: Rosella (Hibiscus sabdariffa L) extract is often used as immune-stimulant because it contains flavonoids, especially anthocyanin and quercetin with antioxidant activities. Objective: This study aimed to determine the safety of the rosella extract consumed in the form of capsules on the vital signs, haematologic parameters as well as kidney and liver function. Methods: This research was conducted using clinical trial pre- and post-test design in healthy participants. There were 21 healthy participants (52% male, age ranged 8–45) consuming rosella capsules for thirty days, in a dose of 500 mg extract daily. Leukocytes, lymphocytes, blood urea nitrogen (BUN), serum glutamic oxaloacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT) and vital signs were consecutively evaluated on days 0, 31, and 45, respectively. The Wilcoxon and paired sample t-test were used to compare the parameters among the evaluated times. Results: The result showed that no significant difference for all parameters among the three time points (p>0.05). Conclusion: These findings suggested that the administration of ethanolic extract of rosella is potential safe and does not negatively affect the vital signs, haemoglobin, leukocytes, lymphocytes, BUN, SGOT, and SGPT.
简介:玫瑰(Hibiscus sabdariffa L)提取物经常被用作免疫兴奋剂,因为它含有黄酮类化合物,尤其是花青素和槲皮素,具有抗氧化活性。目的:本研究旨在确定以胶囊形式食用的紫苏提取物对生命体征、血液学参数以及肾和肝功能的安全性。方法:本研究采用健康受试者的临床试验前后设计进行。有21名健康参与者(52%为男性,年龄在8-45岁之间)服用玫瑰菌胶囊30天,每天500毫克提取物。分别在第0、31和45天连续评估白细胞、淋巴细胞、血尿素氮(BUN)、血清谷草转氨酶(SGOT)、血清谷丙转氨酶(SGPT)和生命体征。Wilcoxon和配对样本t检验用于比较评估时间之间的参数。结果:三个时间点的所有参数差异无统计学意义(p>0.05)。结论:玫瑰菌乙醇提取物给药具有潜在的安全性,不会对生命体征、血红蛋白、白细胞、淋巴细胞、BUN、SGOT和SGPT产生负面影响。
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引用次数: 0
Food supplements in Poland in context of issues related to their safety as food 波兰的食品补充剂及其食品安全问题
Q3 Medicine Pub Date : 2022-09-01 DOI: 10.2478/hepo-2022-0015
Justyna Baraniak, Małgorzata Kania-Dobrowolska, Radosław Kujawski
Summary In Poland, food supplements have been popular among consumers for many years. Their sale brings producers huge profits. The interest in these products, especially in vitamin and mineral preparations and in immunity-supporting products increased dramatically due to the COVID-19 pandemic. Self-medication with untested dietary supplements may be health hazardous. Since in Poland and in other countries the procedures of quality control of food supplements are imperfect, this situation raises serious concerns about the risks of their unrestricted use and food fraud. The article briefly presents important problems in the safety of food supplements from the point of view of experts involved in their evaluation.
摘要在波兰,食品补充剂在消费者中流行了很多年。他们的销售给生产商带来了巨额利润。由于新冠肺炎大流行,人们对这些产品的兴趣急剧增加,尤其是对维生素和矿物质制剂以及免疫支持产品的兴趣。自行服用未经测试的膳食补充剂可能对健康有害。由于波兰和其他国家的食品补充剂质量控制程序不完善,这种情况引起了人们对其不受限制使用和食品欺诈风险的严重关切。本文从参与评估的专家的角度简要介绍了食品补充剂安全性中的重要问题。
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引用次数: 0
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Herba Polonica
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