Illicium

八角
  • 文章类型: Journal Article
    BACKGROUND: A growing number of consumers are embracing the philosophy that natural products are better for their health and the environment. As such, they are seeking products they perceive to be safer, healthier, and without toxic chemical or synthetic ingredients. Natural products are gentle enough for daily use and provide a less abrasive alternative to more potent prescription formulations meant for short-term use. Herbal antimicrobial and antioxidant mouth rinses are considered effective adjuncts to toothbrushing and flossing for patients having gingivitis who have undergone implant treatment, providing a clinically significant benefit in the reduction of dental plaque, and also being antioxidant in nature.
    METHODS: Three types of plant species were taken into consideration. Phyllanthus emblica fruit, Punica granatum flower, and Illicium verum fruit and seed were collected from the native trees of Chennai, Tamil Nadu.
    CONCLUSIONS: We conclude that P. emblica fruit, P. granatum flower, and I. verum fruit and seed exhibit large amounts of flavonoids, phenolics, and tannins. This study also shows that these samples can be used in clinical practice as it has less hematotoxixity percentage. P. granatum that is a pomegranate flower shows a high positive percentage in the presence of flavonoids and phenols. These plant extracts can be used in further studies and in clinical use as mouthwash or topical gel by adding preservatives and flavoring agents.
    RésuméEn tant que tels, ils recherchent des produits qu’ils perçoivent comme étant plus sûrs, plus sains et sans ingrédients chimiques ou synthétiques toxiques. Les produits naturels sont suffisamment doux pour un usage quotidien et offrent une alternative moins abrasive aux formulations d’ordonnance plus puissantes destinées à une utilisation à court terme. Les bains de bouche antimicrobiens et antioxydants à base de plantes sont considérés comme des compléments efficaces au brossage des dents et à l’utilisation de la soie dentaire pour les patients atteints de gingivite qui ont subi un traitement implantaire, offrant un avantage cliniquement significatif dans la réduction de la plaque dentaire et étant également de nature antioxydante. Matériels et méthodes: Trois types d’espèces végétales ont été pris en considération. Le fruit de Phyllanthus emblica, la fleur de Punica granatum et le fruit et la graine d’Illicium verum ont été récoltés sur les arbres indigènes de Chennai, Tamil Nadu. Résultats et Conclusion: Nous concluons que les fruits de P. emblica, la fleur de P. granatum et les fruits et graines d’I. verum présentent de grandes quantités de flavonoïdes, de composés phénoliques et de tanins. Cette étude montre également que ces échantillons peuvent être utilisés en pratique clinique car ils ont un pourcentage d’hématotoxinie inférieur. P. granatum qui est une grenadeLa fleur présente un pourcentage positif élevé en présence de flavonoïdes et de phénols. Ces extraits de plantes peuvent être utilisés dans d’autres études et en utilisation clinique comme bain de bouche ou gel topique en ajoutant des conservateurs et des agents aromatisants.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    八角,或者八角,有许多用途,从烹饪到宗教。它自古以来就被用于食品工业。这项研究的主要目的是确定化学成分,抗菌,抗生物膜,以及通过加氢蒸馏八角地上部分获得的精油(EO)的抗群体感应活性。鉴定出24种组分,代表所分析的精油的92.55%。(E)-茴香脑(83.68%),柠檬烯(3.19%),α-pine烯(0.71%)是I.verumEO的主要成分。结果表明,所获得的EO对8种细菌均有不同程度的效果。关于抗生物膜活性,使用亚抑制浓度进行测试时,反式茴香脑对生物膜形成比精油更有效。针对铜绿假单胞菌PAO1测试的抗蜂群活性的结果表明,与反式-茴香脑相比,VerumEO对PAO1的蜂群行为具有更有效的抑制作用,在100µg/mL的浓度下,百分比达到38%。已鉴定的植物化合物的ADME分析证实了它们的重要药代动力学和药物相似特性。使用分子对接方法的计算机模拟研究显示,已鉴定的化合物与抗菌和抗群体感应(QS)活性中涉及的已知目标酶之间的结合得分很高。总的来说,获得的结果表明I.verumEO是一种潜在的良好抗菌剂,可以防止食品被食源性致病菌污染。
    Illicium verum, or star anise, has many uses ranging from culinary to religious. It has been used in the food industry since ancient times. The main purpose of this study was to determine the chemical composition, antibacterial, antibiofilm, and anti-quorum sensing activities of the essential oil (EO) obtained via hydro-distillation of the aerial parts of Illicium verum. Twenty-four components were identified representing 92.55% of the analyzed essential oil. (E)-anethole (83.68%), limonene (3.19%), and α-pinene (0.71%) were the main constituents of I. verum EO. The results show that the obtained EO was effective against eight bacterial strains to different degrees. Concerning the antibiofilm activity, trans-anethole was more effective against biofilm formation than the essential oil when tested using sub-inhibitory concentrations. The results of anti-swarming activity tested against P. aeruginosa PAO1 revealed that I. verum EO possesses more potent inhibitory effects on the swarming behavior of PAO1 when compared to trans-anethole, with the percentage reaching 38% at a concentration of 100 µg/mL. The ADME profiling of the identified phytocompounds confirmed their important pharmacokinetic and drug-likeness properties. The in silico study using a molecular docking approach revealed a high binding score between the identified compounds with known target enzymes involved in antibacterial and anti-quorum sensing (QS) activities. Overall, the obtained results suggest I. verum EO to be a potentially good antimicrobial agent to prevent food contamination with foodborne pathogenic bacteria.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    细菌使用群体感应(QS)系统相互通信并调节微生物群体行为,如毒力因子的分泌,包括生物膜的形成。为了探索安全,食用剂,研究了八角(SA)作为抗QS和抗生物膜剂的潜力及其在牛奶安全中的应用。金黄色葡萄球菌,鼠伤寒沙门氏菌,铜绿假单胞菌,并选择生物传感器菌株紫色杆菌作为QS的测试菌株,生物膜,和胞外多糖测定。确定酸度百分比和总平板计数以评估生物膜接种和未接种的牛奶的质量。SA提取的产率为25.90%±0.2%(w/w)。在亚MIC,SA提取物对细菌生长没有任何影响。SA提取物抑制了89%的紫罗兰素的产生。提取物还以剂量依赖性方式抑制生物膜的形成达87%。抑制率为70.45%,42.82%,并发现35.66%用于胞外多糖生产。SA提取物使金黄色葡萄球菌的成群运动性降低了约95.9%。共聚焦激光扫描显微镜分析证实生物膜结构的发展受到阻碍。发现SA提取物可以延缓牛奶的腐败。为了避免抗药性,发病机制,以及对生物杀伤剂的抗性,同时提高食品安全和避免合成化学品引起的健康危害问题,SA提取物可用作潜在的QS和生物膜抑制剂。
    Bacteria use quorum sensing (QS) systems to communicate with each other and regulate microbial group behavior, such as the secretion of virulence factors, including biofilm formation. In order to explore safe, edible agents, the potential of star anise (SA) as an anti-QS and antibiofilm agent and its possible application in milk safety were investigated. Staphylococcus aureus , Salmonella Typhimurium, Pseudomonas aeruginosa , and biosensor strain Chromobacterium violaceum were selected as test strains for QS, biofilm, and exopolysaccharide assays. The percent acidities and total plate counts were determined to evaluate the quality of biofilm-inoculated and noninoculated milk. The yield of SA extraction was 25.90% ± 0.2% (w/w). At sub-MIC, SA extract did not show any effect on bacterial growth. The production of violacein was inhibited by 89% by SA extract. The extract also inhibited the formation of biofilm by up to 87% in a dose-dependent manner. Inhibition rates of 70.45%, 42.82%, and 35.66% were found for exopolysaccharide production. The swarming motility of S. aureus was reduced by about 95.9% by SA extract. Confocal laser scanning microscopy analysis confirmed that the development of biofilm architecture was hampered. It was found that SA extract could delay the spoilage of milk. In the endeavor to avoid drug resistance, pathogenesis, and resistance to biocides while improving food safety and avoiding health hazard issues arising from synthetic chemicals, SA extract could be used as a potential QS and biofilm inhibitor.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    地西泮的抗惊厥特性已被广泛研究,主要集中在γ-氨基丁酸(GABA)系统。这项研究的目的是通过基于NMR的代谢组学方法结合组织病理学检查和行为检查,全面分析与地西泮对anisatin引起的惊厥性癫痫发作的神经保护相关的代谢事件。对小鼠梨状皮质和小脑代谢谱的多因素分析表明,地西泮可以通过恢复破坏的神经递质和神经调质代谢来减轻惊厥性癫痫发作的小鼠。改善氧化应激,缓解能源的干扰,茴香中毒小鼠的氨基酸和核酸代谢。这项综合代谢组学研究提供了一种强大而高效的方法来阐明地西泮的治疗效果并评估其安全性。这项研究应该有助于我们对惊厥性癫痫的理解,并全面了解苯二氮卓类药物对惊厥性癫痫的治疗效果。
    The anticonvulsive properties of diazepam have been extensively studied, mainly focusing on the γ-amino butyrate (GABA) system. The aim of this investigation was to integrally analyze the metabolic events related to neuroprotection of diazepam on anisatin-induced convulsive seizures by a NMR-based metabolomic approach combined with histopathological examination and behavior examination. Multivariate analysis on metabolic profiles of the piriform cortex and cerebellum of mice revealed that diazepam could relieve mice suffering from the convulsive seizures by recovering destructed neurotransmitter and neuromodulator metabolism, ameliorating oxidative stress, alleviating the disturbance in energy, amino acid and nucleic acid metabolism in anisatin intoxicated mice. This integrated metabolomics study provided a powerful and highly effective approach to elucidate therapeutic effects and assessed the safety of diazepam. This study should be helpful for our understanding of convulsive seizures, and provide a holistic view of the treatment effects of benzodiazepine on convulsive seizures.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • DOI:
    文章类型: English Abstract
    Illicium vatum Hook. f. and its counterfeit Illicium lanceolatum A. C. Smith can be discriminated and identified by using multi-steps infrared maro-fingerprint method. The method combines three steps: general infrared spectroscopy (FTIR), secondary derivative spectroscopy and two dimensional correlation infrared spectroscopy (2D-IR). The resolution is getting higher and higher and the differences of spectra are magnified farther. The holistic shape of peaks is similar in the FTIR spectra of Illicium vatum Hook. f. and Illiciumrn lanceolatum A.C. Smith, but the spectra of llicium vatum Hook. f. show only one characteristic peak at 3 392 cm(-1), while the spectra of Illicium lanceolatum A. C. Smith show two characteristic peaks at 3482 and 3387 cm(-1), respectively. Observing their secondary derivative spectra, in the range of 850-1 180 cm(-1) the strongest peak of Ilicium vatum Hook. f. is at 1015 cm(-1) and the intensity of other strong peaks is similar. However, the strongest peak of Illicium lanceolatum A. C. Smith is at 1070 cm(-1). In 1180-1500 cm(-1), the intensity of peaks at 1469, 1454 and 1442 cm(-1) of Ilicium vatumrn Hook. f. is stronger than that of peaks at 1292, 1276, 1266 cm(-1). The status of Illicium lanceolatum A. C. Smith is just opposite. The distinction of 2D-IR correlation spectra is more obvious. In 1165-1500 cm(-1), the stronger automatic peaks of Ilicium vatum Hook. f. present at 1153 and 1000 cm(-1), respectively, but those of Illicium lanceolatum A. C. Smith present at 911 and 878 cm(-1), respectively. In 1165-1500 cm(-1), llicium vatum Hook. f. has two automatic peaks while Illicium lanceolatum A. C. Smith has five automatic peaks. The multi-steps IR macro-fingerprint method is rapid and effective.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • DOI:
    文章类型: Journal Article
    暂无摘要。
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

公众号