Phytochemical analysis, Antimicrobial and Antioxidant assay of Bhut Jolokia pepper

Author(s):  
Dharani Dharan ◽  
K. Venkatesh ◽  
S.S. Meenambiga ◽  
Dhivya Dhanasekar ◽  
P. Arumugam

The presented work represents phytochemical analysis, Antioxidant assay and Antimicrobial activity of Bhut jolokia pepper (Capsicum chinense Jacq) extracted by ethanol as solvent. The ethanolic extract of Bhut jolokia pepper showed the presence of terpenoids, steroids, saponins and flavonoids. Antimicrobial assay was done with varying concentration (250-1000µg/ml) of pepper extract using tetracycline as control by well diffusion method, the extract at 750µg/ml shown best inhibition zone and Staphylococcus aureus showed the highest zone of inhibition at all concentration compared to other bacteria species with maximum zone of inhibition of 27mm. The DPPH scavenging assay for antioxidant activity at 517nm showed positive activity for scavenging, scavenging increased with the concentration of extract. Thus, Bhut jolokia could be effective in treating diseases caused by Staphylococcus aureus from antimicrobial assay result.

2020 ◽  
Vol 7 (11) ◽  
pp. 276-284
Author(s):  
Garga M. A. ◽  
Manga S. B. ◽  
Rabah A.B. ◽  
Tahir H. ◽  
Abdullahi M. ◽  
...  

The aim of this study was to investigate the antibacterial effect and identify the phytochemical constituents of Moringa oleifera leaves and seeds extract on Staphylococcus aureus (S. aureus) clinical isolates using agar well diffusion method. The samples were collected from the premises of Usmanu Danfodiyo University, Sokoto. The Seeds and Leaves were collected fresh. They were extracted using methanol and ethyl acetate. Various concentrations from 100mg/ml to 500mg/ml were prepared. The test bacteria used is Staphylococcus aureus obtained from Microbiology laboratory of the Usmanu Danfodiyo University. The bacteria were re-identified using biochemical tests. The bacterial inoculums were standardized to McFarland scale 0.5. Zone of inhibition were read after 24 hours of incubation at 370C.The results of the antibacterial study revealed that the methanolic leaves extracts at 500 mg/ml had effect on S. aureus with zone of inhibition of 20mm. The methanolic seed extract have effect on S. aureus with zone of inhibition of 19.5mm. The MIC for the leave and seed extracts for Staphylococcus aureus was 250mg/ml. The MBC was 500mg/ml. The results of the phytochemical analysis revealed the presence of flavonoid, tannins, saponins, cardiac glycosides, alkaloids, volatile oil, saponin glycosides, and glycosides but anthraquinone and steroids were absent in the extracts. The zones of inhibition showed that both the methanolic and ethyl acetate extracts at 500mg/ml were active to all the tested bacteria. ANOVA and Duncan Multiple Mean Range test was used to analyze the data. Based on Duncan’s grouping, there is significant difference between the solvents and the concentrations used.


2018 ◽  
Vol 29 (2) ◽  
pp. 63
Author(s):  
Nehia Hussein ◽  
Zainab Nabeel

    The effects of aqueous and alcoholic of extracts Mentha pulegium leaves were studied on the growth of strain Staphylococcus aureus that isolated from burns. The Phytochemical analysis of The aqueous and alcoholic extracts of Mentha pulegium leaves show the presence of bioactive constituents like comarins, steroids, tannins, glycosides, saponins, alkaloids, flavonoids, phenols  and essential oil. the ethanolic extract show an inhibition zone larger than aqueous extract.Results show that the ethanolic extract inhibits bacterial growth with inhibition zone(30.33mm) but the aqueous extract give an inhibition zone(8mm). In this study, minimum inhibitory concentration (MIC) was detected and the result varies according to the type of extract.


Author(s):  
Sudhakar Chekuri ◽  
Arun Jyoti B ◽  
Saraswathi JSompaga ◽  
Shivaprasadi Panjala ◽  
Roja Ran Anupalli

Anti-microbial and anti-fungal activity of different solvent extracts of Acalypha indica (Euphorbeace family) was tested against bacterial pathogens (Pseudomonasaeruginosa, E.Coli, KlebsiellaPneumonia and Staphylococcus aureus) and fungal strains (Candida albicans, Aspergillus niger, Candida tropicalis andCandida kefyr) using the Agar Well diffusion method . It was observed that all the extracts showed positive activity) against bacteria and fungi. Ethanolic extract of Acalypha indica showed more potency against Staphylococcus aureus with an inhibition zone of12.46 (mm) and Methanolic extract exhibited higher activity against E.coli with an inhibition zone of11.26 (mm). Ethanolic extract of Acalypha indica showed prominent antifungal activity against candida albicans with an inhibition diameter of 12.53 (mm) and Aspergillus niger with a diameter of 9.21 (mm) when compared to other solvent extracts. Erythromycin and Ketoconazole were used as positive standards for antimicrobial and anti fungal experiments. In the present study, Ethanol extract showed a varying degree of inhibition to the growth of tested organisms compared to Methanol, Acetone and Chloroform against Bacteria and Fungi. The results confirmed the presence of antibacterial and antifungal compounds in shade dried extracts of Acalypha indica against human pathogenic organisms.


2021 ◽  
Vol 7 (2) ◽  
pp. 130-140

Cassia fistula (C. fistula) is a flowering plant and a member of Fabaceae family. This study was designed to examine the antibacterial, antioxidant and phytochemical activity of ethanolic extract of C. fistula plant. The microbial inhibitory effect of ethanolic extracts of C. fistula was tested against Gram positive isolates such as Bacillus cereus, Staphylococcus aureus and Gram-negative isolates such as Salmonella typhi, Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa using disc diffusion method and well diffusion method. The 25 mg extract of C. fistula leaves (CF-05) showed more zone of inhibition against Salmonella typhi, i.e., (21mm) and in 50 mg extract of CF-13 fruit showed best zone of inhibition against Salmonella typhi, i.e., 17 mm. Qualitative analysis and antioxidant activity at various concentrations was also measured. The phytochemical analysis showed the presence of alkaloids, carbohydrates, fats, tannins, flavonoids, saponins, terpenoids, and sterols. The antioxidant activity in 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity revealed the distinguished antioxidant activity of C. fistula.


Author(s):  
ELISA KALUGENDO ◽  
KOUSALYA P

Objective: The present study focused on synthesizing silver nanoparticles (AgNO3) using Moringa Oleifera seeds and Glycyrrhiza glabra stems. Methods: The synthesized AgNO3 were used to evaluate the antibacterial efficacy of methicillin-resistant Staphylococcus aureus (MRSA) by agar well diffusion method. AgNO3 were produced from silver nitrate using M. oleifera seeds and G. glabra stems. Results: AgNO3 were characterized using UV-visible spectroscopy at a wavelength of 400–460 nm. AgNO3 from G. glabra stems showed high anti- MRSA activity with 32 mm zone of inhibition, and M. oleifera seed extract showed 30 mm inhibition zone of inhibition against MRSA. Conclusion: The biologically synthesized AgNO3 can be used against MRSA.


2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Whika Dewatisari ◽  
Laurentius Hartanto Nugroho ◽  
Endah Retnaningrum ◽  
Yekti Asih Purwestri

Abstract. Nugroho LH, Dewatisari WF, Retnaningrum E, Purwestri YA. 2021. The potency of Sansevieria trifasciata and S. cylindrica leaves extracts as an antibacterial against Pseudomonas aeruginosa. Biodiversitas 22: 408-415. Sansevieria trifasciata and Sansevieria cylindrica are the major herbs in Indonesia, which contain several bioactive compounds as potential sources of antibacterial agents. This study aims to evaluate the antibacterial activity of S. trifasciata and S. cylindrica leaves extract and fraction against Pseudomonas aeruginosa and to identify its bioactive compounds. Crude ethanolic extract of S. trifasciata and S. cylindrica leaves were tested for their antimicrobial activity by disk diffusion method against P. aeruginosa. S. trifasciata showed strong antibacterial activity with an inhibition zone of 18.3 mm compared to S. cylindrica. Different concentrations of extract i.e. 4 mg/mL, 8 mg/mL, 16 mg/mL, 32 mg/mL, 64 mg/mL, 128 mg/mL and 256 mg/mL were tested for their minimum inhibitory concentrations (MIC). The MIC results showed that the S. trifasciata extract was able to inhibit bacterial growth at a concentration of 32 mg/mL. Results of vacuum liquid chromatography (VLC) and thin-layer chromatography (TLC) revealed that only fraction 3 showed the highest antibacterial activity at 16 mg/mL. In TLC bioautography analysis, fraction 3 showed a clear zone at Rf 0.93. The phytochemical analysis showed that terpenoid, phenolic, triterpenoid, and flavonoid compounds were found in S. trifasciata extract that were associated with antibacterial activity.


Jurnal MIPA ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 96
Author(s):  
Hosea Jaya Edy ◽  
Marchaban Marchaban ◽  
Subagus Wahyuono ◽  
Agung Endro Nugroho

Kandungan kimia flavonoid dan fenolik dalam ekstrak daun T.erecta diketahui memiliki aktivitas antibakteri yang baik. Pengunaan ekstrak daun T.erecta sebagai zat aktif sediaan hidrogel akan sangat mempermudah pemanfaatan dalam proses terapi oleh masyarakat. Tujuan dalam penelitian ini adalah melihat kemampuan aktivitas antibakteri sediaan hidrogel dengan zat aktif ekstrak daun T.erecta. Dalam penelitian ini digunakan 6 variasi konsentrasi ekstrak yang terkandung pada sediaan hidrogel yaitu 1.5; 2.0; 2.5; 3.0; 3.5; dan 4.0 %. Pengujian aktivitas antibakteri menggunakan metode difusi sumuran terhadap bakteri Staphylococcus aureus dan Escherichia coli. Aktivitas antibakteri terbesar ditunjukkan oleh sediaan hidrogel dengan konsentrasi ekstrak daun T.erecta 2.5%. Diameter zona hambat yang terbentuk terhadap pertumbuhan E.coli adalah 15.33 mm sedangkan diameter zona hambat terhadap S.aureus adalah 17.87 mm. Untuk kontrol positif digunakan bioplacenton® dan untuk kontrol negatif digunakan basis hidrogel tanpa kandungan ekstrak T.erectaFlavonoid and phenolic on ethanolic extract of T.erecta L has been antibacterial activity. The aim of this research was to determinate of antibacterial from hydrogel with ethanolic extract of T.erecta L. This research was begun making hydrogels with six variations of ethanolic extract of T.erecta L were 1.5; ; 2.0; 2.5; 3.0; 3.5; and 4.0 %.  Antibacterial activity used hole diffusion method against Staphylococcus aureus and Escherichia coli. Hydrogel containing 2.5 % ethanolic extract of T.erecta L was shown the highest antibacterial activity. The diameters of the inhibition zone against E.coli was 15.33 mm and against S.aureus was 17.87 mm. Positive control used bioplacenton® and negative control was hydrogel without ethanolic extract of T.erecta content


Author(s):  
S. Zengeni ◽  
J. Chifamba ◽  
I. Mutingwende ◽  
T. Manyarara

Bacterial skin infections are common in the tropics and the emergence of resistant bacterial strains has complicated treatment outcomes especially in immune compromised patients. This study focused on determining the antibacterial activity and preliminary phytochemical screening of the plant, Burkea Africana, which has been used for decades to treat various ailments in Southern Africa. Phyto-constituent determination and antibacterial assay was carried out on the hydro-ethanolic and aqueous leaf extracts of Burkea Africana. The Agar well diffusion method was used to investigate the antibacterial efficacy of both extracts. Activity was measured against P. aeruginosa, E. coli, S. aureus and E. faecalis using ciprofloxacin as the standard. For both extracts, phytochemical analysis revealed the presence of steroids, tannins, saponins and carbohydrates. The 70% hydro-ethanolic extract however revealed more phyto-constituents including flavonoids and alkaloids. For both extracts antibacterial activity was comparable to the standard. The highest zone of inhibition recorded for the water extract was 22±0.4 mm at 500 mg/ml for E. coli while the standard, Ciprofloxacin had a zone of inhibition of 25±0.33 mm. The ethanolic extract showed higher antibacterial efficacy when compared to ciprofloxacin against S. aureus. The zone of inhibition for the 70% ethanolic extract was 25.4±0.50 mm and that of the standard was 27±0.48 mm. Antibacterial activity was generally higher in the ethanolic extract than the water extract. It is therefore concluded that B. africana exhibits antibacterial activity.


2021 ◽  
Vol 7 (1) ◽  
pp. 43-48
Author(s):  
Emelda Emelda ◽  
◽  
Eka Asriani Safitri ◽  
Annisa Fatmawati ◽  
◽  
...  

Staphylococcus aureus (S. aureus) is a normal flora that can cause mild skin infections, one of which is acne. Commonly used chemical treatments are antibiotics such as Clindamycin. Continuous use of antibiotics can lead to resistance. Natural ingredients that are possible can inhibit the growth of bacteria. Treatment caused by S.aureus is Ulva lactuca Linn. (Green algae). This marine biota contains compounds that have the potential to be antibacterial, including triterpenoids, flavonoids, and saponins. This study aims to compare antibacterial activity of ethanolic extract of Ulva lactuca and Clindamycin against S. aureus bacteria. This type of research is an experimental laboratory. Ulva lactuca was extracted by maceration method using ethanol 96% solvent. Then carried out testing for antibacterial activity using the agar diffusion method by sump technique. The study was divided into 6 groups. One Clindamycin group and 5 treatment groups respectively with extract concentrations of 20%, 40%, 60%, 80%, and 100%. The test was carried out in 3 repetitions. Data analysis was processed by SPSS using the Kruskal-Wallis test to determine which groups had difference. The results showed that the ethanolic extract of Ulva lactuca was able to inhibit the growth of S. aureus bacteria with strong categories at concentrations of 20%, 40%, and 60%. Very strong category at 80% and 100% concentrations. The 100% concentration had the largest average inhibition zone diameter of 22 ± 0.577 mm which was not significantly different from Clindamycin with a significance value of 0.043 (p <0.05). This study concludes that the ethanolic extract of Ulva lactuca has activity in inhibiting the growth of S.aureus bacteria with strong to very strong categories, but statistically not as strong as Clindamycin


2019 ◽  
Vol 7 (1) ◽  
pp. 24-26
Author(s):  
Suharyani Ine ◽  
Harlinda Kuspradini ◽  
Julinda Manalu

This study aimed to determine the antimicrobial activity and chemical compounds by phytochemical analysis of Actinodaphne glomerata leaves. The extraction was performed by maceration method using n-hexane solvent. The antimicrobial activity was tested by agar diffusion method against Candida albicans, Staphylococcus aureus, Streptococcus mutans and Streptococcus sobrinus. The n-hexane crude extracts was tested for its antimicrobial activity using 125, 250 and 500 μg/well of concentrations. Based on phytochemical analysis, it showed that n-hexane extract of A. glomerata leaves contained alkaloids, triterpenoid and carbohydrates. The extract inhibited all tested microorganisms and the best inhibition zone was shown against S. sobrinus (19.56 mm) at concentration 500 μg/well.


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