scholarly journals Modifications of agar diffusion method to determination of the antimicrobial effect of the herbal medicinal products

2016 ◽  
Vol 0 (2(43)) ◽  
pp. 80-84
Author(s):  
N. M. Vorobets ◽  
H. V. Yavorska
2016 ◽  
Vol 31 (2) ◽  
pp. 89
Author(s):  
Tatiana Dantas Piana ◽  
Maria de Fátima Malvar Gesteira ◽  
Erica Dos Santos Carvalho ◽  
Josilene Borges Torres Lima Matos ◽  
Monica Franca ◽  
...  

Objective: To evaluate the potentiating effect of different substances in antimicrobial action of calcium hydroxide.Methods: The agar diffusion method, was used with well technique, to analyze seven substances associated to calcium hydroxide to make some pastes, they are: chlorexidine, saline, anesthetic, malvatricin, propolis, hypochlorite, paramonochlorophenol.Results: The pastes with malvatricin and paramonochlorophenol presented greater inhibition zones against Enterococcus faecalis.Conclusion: There was potentialization in antimicrobial effect of calcium hydroxide when associated to paramonochlorophenol and to malvatricin especially against Enterococcus faecalis. Low increase of the antimicrobial capacity was observed when using chlorexidine as vehicle to calcium hydroxine paste.


2018 ◽  
Vol 66 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Bancha Yingngam ◽  
Adelheid Brantner ◽  
Damrongsak Jinarat ◽  
Rawiwun Kaewamatawong ◽  
Wandee Rungseevijitprapa ◽  
...  

Author(s):  
N. P. Antonova ◽  
I. M. Morgunov ◽  
S. S. Prokhvatilova ◽  
E. P. Shefer ◽  
A. M. Kalinin

 The use of assay methods with different test conditions for determination of anthracene derivatives in herbal substances and herbal medicinal products requires adjustment of the established limits for total anthracene derivatives content based on the test method used.The aimof the study was to compare different pharmacopoeial methods of quantitative determination of anthracene derivatives, and established limits for the active substance content, and to analyse the possibility of adjusting the limits based on the test method used.Materials and methods: the total content of anthracene derivatives was measured in the samples of frangula bark (fragmented bark and powder) and senna leaves (fragmented leaves and powder) using the test methods described in the State Pharmacopoeia of the Russian Federation (XI and XIII editions), and the European Pharmacopoeia.Results:the analysis of Russian and foreign pharmacopoeial requirements for determination of anthracene derivatives in laxative herbal medicinal products demonstrated differences in extraction solvents, extraction conditions, and calculation methods used. The experiments showed that the optimal extraction solvent was 70 % alcohol solutions, and that an indirect cobaltic chloride reference standard should be replaced by specific absorbance of glucofrangulin A and sennoside B. It was shown that the limits for total anthracene derivatives content should be chosen based on the extraction conditions used.Conclusions:comparative theoretical research and experimental studies helped to determine optimal assay conditions and respective limits for total anthracene derivatives content to be used in quality control of herbal substances and herbal medicinal products.   


Author(s):  
O. V. Evdokimova ◽  
A. V. Beketova ◽  
M. N. Lyakina

The relevance of this study stems from the need for alignment of test methods used for identification and assay of anthracene derivatives in herbal preparations and herbal medicinal products. The aim of the study was to analyse Russian and international quality standards and to identify the most specific and sensitive test methods that could be used for herbal medicines containing anthracene derivatives. The comparative analysis of requirements in the Identification, Determination of major classes of bioactive compounds, and Assay parts of the Russian and foreign pharmacopoeial monographs for herbal preparations and herbal medicinal products containing anthracene derivatives, demonstrated that the main test method used for identification is thin layer chromatography, while assays most often rely on spectrophotometry. The so-called “consistent standardisation” principle is implemented in the Russian quality standards as regards alignment of methods used for anthracene derivative determination in herbal preparations (i.e. active pharmaceutical ingredients, APIs) and herbal medicinal products containing these APIs. The comparative analysis of requirements in the Russian and foreign quality standards for herbal medicines containing anthracene derivatives demonstrated the need for elaboration of two general chapters: Qualitative analysis of anthracene derivatives in herbal medicines and Quantitative analysis of anthracene derivatives in herbal medicines.


2021 ◽  
Vol 9 (2) ◽  
pp. 61-68
Author(s):  
M. S. Galenko ◽  
I. V. Gravel ◽  
N. Yu. Velts ◽  
R. N. Alyautdin

Herbal medicinal products (HMPs) are widely used in medical practice due to their availability, ease of use, and relatively safe pharmacological profile. However, medicinal plants are capable of accumulating heavy metals and arsenic which can have toxic effect on the human body when found in HMPs. The aim of the study was to summarise and analyse requirements of the Russian and foreign pharmacopoeias for the limits of heavy metals and arsenic in HMPs. National and regional pharmacopoeias have limits for the content of the major toxic elements (lead, cadmium, mercury, chromium, and arsenic) in HMPs. The study showed that the Indian and Japanese pharmacopoeias include only semi-quantitative methods for determination of heavy metals and arsenic, while the Russian and Chinese pharmacopoeias allow for the use of both quantitative and semi-quantitative methods. It was demonstrated that the limits for heavy metals and arsenic are the same for herbal substances and HMPs. The development of consistent approaches to determination of heavy metals and arsenic content, a systematic transition to quantitative methods of analysis, and establishment of individual limits for toxic elements in different HMP dosage forms, will make it possible to achieve the so-called consistent harmonisation, ensure reliable assessment of the content of heavy metals and arsenic, and minimize the risk of their entering human body with HMPs.


2021 ◽  
pp. 62-65
Author(s):  
Margarita Dmitrievna Anikina ◽  
Yuliya Eduardovna Generalova ◽  
Irina Valerievna Gravel

The article presents the results of a qualitative and quantitative analysis of the content of heavy metals in herbal medicinal products used in Ayurveda.


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