Corrigendum to “Antibacterial activity, optical, and functional properties of corn starch-based films impregnated with bamboo leaf volatile oil” [Food Chem. 357 (2021) 129743]

Objectives: The objectives of the study were to study the antibacterial activity for the various extracts of Clausena dentata against human pathogens. Clausena (Rutaceae) is a genus of about 23 species of unarmed trees and shrubs. The stem bark of C. dentata is used in veterinary medicine for the treatment of wounds and sprains. Even though C. dentata has a lot of potential medical uses, the study of microbiological properties is very scarce. Methods: The plant C. dentata was collected from Kadagaman, near Tiruvannamalai, Tamil Nadu, India, and authenticated by Centre for Advanced Study in Botany, University of Madras, Chennai. The dry powder of stem bark was extracted with hexane, chloroform, and methanol. The extracts were subjected to qualitative phytochemical screening and antibacterial activity against human pathogenic bacteria such as Escherichia coli, Salmonella Typhi, Klebsiella pneumonia, Vibrio cholerae, and Staphylococcus aureus and compared with ciprofloxacin. Results: Qualitative chemical tests revealed the presence of various phytochemicals such as alkaloids, glycosides, carbohydrate, proteins and amino acids, phytosterols, and volatile oil. The antibacterial activity result reveals that all the extracts were are more active against V. cholerae. The activity against Pseudomonas aeruginosa was mild. Conclusion: The activity against V. cholerae was comparable with that of 5 μg/mL ciprofloxacin at the concentration of C. dentata 40 μg/mL. The orders of antibacterial activity against human pathogenic bacteria are hexane, methanol, and chloroform extract of C. dentata.

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Study of antibacterial activities of the volatile oil of Nigella sativa Linn on animal model

Bangladesh Journal of Physiology and Pharmacology ◽

10.3329/bjpp.v22i1.3565 ◽

1970 ◽

pp. 22-24

Author(s):

Nazma Ara ◽

MA Khaleque ◽

SAR Choudhury ◽

Ruhul Amin

Keyword(s):

Animal Model ◽

Antibacterial Activity ◽

Nigella Sativa ◽

Volatile Oil ◽

Antibacterial Activities ◽

Bacterial Colony ◽

Staph Aureus

In-vivo antibacterial activity of the volatile oil of Nigella sativa linn was carried out in mice. Mice were infected by inoculation of staph. Aureus and result shows successful iradication of bacterial colony. DOI: 10.3329/bjpp.v22i1.3565 Bangladesh J Physiol Pharmacol 2006; 22(1/2) : 22-24

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Preliminary phytochemical screening and susceptibility of bacteria pathogens to whole extract of evolvulus alsinoides (L.)

Journal of Bio-Science ◽

10.3329/jbs.v18i0.8769 ◽

1970 ◽

Vol 18 ◽

pp. 16-20

Author(s):

BA Omogbai ◽

FA Eze

Keyword(s):

Staphylococcus Aureus ◽

Antimicrobial Activity ◽

Antibacterial Activity ◽

Bacillus Cereus ◽

Pathogenic Bacteria ◽

Volatile Oil ◽

Salmonella Typhi ◽

Phytochemical Screening ◽

Evolvulus Alsinoides ◽

And Staphylococcus Aureus

Context: Plant based antimicrobial represent a vast untapped source for medicines and further exploration of plant antimicrobial neeto occur. Evolvulus alsinoides (L) (Convolvulaceae) is a perennial herb is used in traditional medicine in East Asia, India, Africa and Philippines to cure fever, cough, cold, venereal diseases, azoospermia, adenitis and dementia. Objective: The objective of this research was to evaluate the antimicrobial activity of the extracts of E. alsinoides on some clinical microbial isolates. Materials and Methods: The ed thanolic and aqueous extracts of the whole plant (leaves and twigs) were analysed for alkanoids, tannins, glycosides, steroids, flavonoids, saponins, volatile oil and resins. The determination of antibacterial activity was done using the agar well diffusion technique. Pure cultures of pathogenic bacteria such as Bacillus cereus, Staphylococcus aureus, Micrococcus leutus, Klebsiella Pneumoniae, Pseudomonas aeruginosa, Escherichia coli and Salmonella typhi were used for antibacterial activity assay, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). Results: The ethanolic extract of the plant had MIC values ranging from 16 mg/ml to 512.5 mg/ml. The least MIC was 16mg-ml against Salmonella typhi while Bacillus cereus and Staphylococcus aureus showed the highest MIC of 512.5 mg-ml. In the aqueous extract the MIC ranged between 512.5 to >1025 mg/ml. Salmonella typhi, Micrococcus luteus and Staphylococcus aureus were not inhibited by the water extract. Phytochemical result showed ethanol to be a better solvent for the extraction of the bioactive agents in this plant which include: glycosides, alkaloids, saponins, tannins, flavonoids and volatile oil. Conclusion: In this study the gram-negative organisms had the lowest MICs and MBCs. This suggests their higher susceptibility to the extract of this plant. On the basis of the result obtained in this investigation it can be concluded that ethanol extract of Evolvulus alsinoides had significant in vitro broad spectrum antimicrobial activity. Keywords: Evolvulus alsinoides; Phytochemical screening; Antibacterial activity. DOI: http://dx.doi.org/10.3329/jbs.v18i0.8769 JBS 2010; 18(0): 16-20

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Chemical Composition and Antibacterial Activity of Essential oil from Salvia mukerjeei

Natural Product Communications ◽

10.1177/1934578x1100601239 ◽

2011 ◽

Vol 6 (12) ◽

pp. 1934578X1100601 ◽

Cited By ~ 1

Author(s):

Lalit Mohan ◽

Anuradha Negi ◽

Anand B. Melkani ◽

Vasu Dev

Keyword(s):

Antibacterial Activity ◽

Chemical Composition ◽

Agrobacterium Tumefaciens ◽

Essential Oil ◽

Volatile Oil ◽

Erwinia Chrysanthemi ◽

Bacterial Strains ◽

Capillary Gc ◽

Aerial Parts ◽

Sesquiterpene Hydrocarbons

The composition of steam volatile oil from aerial parts of Salvia mukerjeei Bennet & Raizada (Lamiaceae) was analyzed by capillary GC and GCMS. The oil was rich in sesquiterpene hydrocarbons (67.3%). Among 71 identified constituents representing 91.7% of the oil, β-caryophyllene (28.7%), γ-muurolene (15.5%) and dehydro-aromadendrane (9.5%), were the principal constituents. The oil was tested against ten bacterial strains and was active against Enterococcus faecalis, Erwinia chrysanthemi and Agrobacterium tumefaciens.

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