scholarly journals Lilium Philadelphicum Flower as a Novel Source of Antimicrobial Agents: A Study of Bioactivity, Phytochemical Analysis and Partial Identification of Antimicrobial Metabolites

Author(s):  
Shefali Singh ◽  
Vineeta Singh ◽  
Alaa Alhazami ◽  
B.N. Mishra ◽  
Shafiul Haque ◽  
...  

The members of the Liliaceae family have been regarded as an excellent source of biologically active compounds. However, the work on antimicrobial potential and characterization of the bioactive fractions of Lilium philadelphicum flower is limited and needs to be explored. The present study reports the antimicrobial potential, anti-inflammatory and anticancer potential of the bioactive fraction extracted from the flower of L. philadelphicum (Red Lily) and characterization of these bioactive compounds. The antimicrobial activity was tested against nine different Gram-positive and Gram-negative bacterial strains. The minimum inhibitory concentration (MIC) values of methanolic extract of L. philadelphicum flower against Acinetobacter bouvetii, Achromobacter xylosoxidans, Bacillus subtilis MTCC 121, Candida albicans MTCC 183, Klebsiella pneumoniae MTCC 3384, and Salmonella typhi MTCC 537 were 25, 50, 12.5, 50, 100 and 50 μg mL-1, respectively. The phytochemical analysis of the extract reveals the presence of phenols, flavonoids, tannins, terpenoids, glycosides, coumarins, and quinones. The cytotoxicity of the partially purified compound against the HepG2 cell line in MTT assay demonstrates up to 90% cell viability with a bioactive compound concentration of 50 μg/ml. However, with the increase in bioactive compound concentration up to 1000 μg/ml results into nearly 80% cell viability, just a minor decline in cell viability suggests the importance of bioactive compounds for suitable therapeutic applications. Spectroscopic studies of the bioactive compound by UV-Visible spectroscopy, FT-Infra Red spectroscopy, Gas Chromatography-Mass Spectrometry (GCMS) as well as its phytochemical analysis suggests the presence of terpenoids moiety, responsible for the antimicrobial property of L. philadelphicum flower.

2021 ◽  
Vol 13 (15) ◽  
pp. 8471
Author(s):  
Shefali Singh ◽  
Vineeta Singh ◽  
Alaa Alhazmi ◽  
Bhartendu Nath Mishra ◽  
Shafiul Haque ◽  
...  

The members of the Liliaceae family are considered an excellent source of biologically active compounds. However, work on antimicrobial potential and characterization of the bioactive fractions of the Lilium philadelphicum flower is limited and needs to be explored. The present study reports the antimicrobial potential of the bioactive fraction extracted from the flower of L. philadelphicum (red lily) and partial characterization of the bioactive compound(s). The antimicrobial activity was tested against nine different Gram-positive and Gram-negative bacterial strains. The minimum inhibitory concentration (MIC) values of methanolic extract of the L. philadelphicum flower against Acinetobacter bouvetii, Achromobacter xylosoxidans, Bacillus subtilis MTCC 121, Candida albicans MTCC 183, Klebsiella pneumoniae MTCC 3384, and Salmonella typhi MTCC 537 were 25, 50, 12.5, 50, 100, and 50 μg/mL, respectively. The phytochemical analysis of the extract revealed the presence of phenols, flavonoids, tannins, terpenoids, glycosides, coumarins, and quinones. The cytotoxicity of the partially purified compound against the HepG2 cell line using MTT assay demonstrated up to 90% cell viability with a bioactive compound concentration of 50 μg/mL. However, the increase in the bioactive compound’s concentration up to 1000 μg/mL resulted in nearly 80% cell viability. This minor decline in cell viability suggests the importance and suitability of the bioactive compound for therapeutic applications. Spectroscopic studies of the bioactive compound by UV-visible spectroscopy, FT-infrared spectroscopy, gas chromatography-mass spectrometry (GC-MS), as well as phytochemical analysis, suggested the presence of a terpenoid moiety, which may be responsible for the antimicrobial property of the L. philadelphicum flower.


Author(s):  
NANDINI G ◽  
GOPENATH TS ◽  
NAGALAMBIKA PRASAD ◽  
MURUGESAN KARTHIKEYAN ◽  
ASHOK GNANASEKARAN ◽  
...  

Objective: The objective of the present study aimed at investigating the phytochemical and antioxidant properties of Carica papaya leaf extracts. Methods: As phytochemicals are biologically active compounds and a powerful group of plant chemicals, believed to stimulate the immune system along with antioxidants, the molecules which hinder oxidation of other molecules by the process of inhibiting or by generating the oxidizing chain reactions and preventing diseases. The total phenolic content (TPC) was determined by Folin-Ciocalteu method and total flavonoid contents (TFC) were determined aluminum chloride method and antioxidant by 2,2,1-diphenyl-1-picrylhydrazyl method. Results: The results of phytochemical screening revealed the presence of bioactive compounds such as alkaloid, carbohydrates, and amino acids and TPC and TFC varied among the different solvent extracts, in which methanolic extracts showed highest amount of phytochemicals and TPC and TFC and antioxidants compared to other solvents. Conclusion: The isolation and purification of specific bioactive compound may account as natural and promising medicines in exploration of new drug.


2021 ◽  
Vol 13 (1) ◽  
pp. 396-401
Author(s):  
Khushbu Parihar ◽  
Alkesh Tak ◽  
Praveen Gehlot ◽  
Rakesh Pathak ◽  
Sunil Kumar Singh

The genus Nocardiopsis is well known to produce secondary metabolites especially antibacterial bioactive compound. Isolation and characterization of bioactive compounds producing novel isolates from unusual habitats are crucial. The present study was aimed to explore Didwana dry salt lake of Rajasthan state in India for the isolation and characterization of actinomycetes. The isolated actinomycetes isolates were characterized based on culture characteristics, biochemical tests and 16S rRNA gene sequencing. The 16S rRNA gene sequence analysis revealed that all the five isolates inhabiting soil of the said dry salt lake of Didwana, Rajasthan belonged to four species of Nocardiopsis viz., N. synnemataformans, N. potens, N. prasina and N. dassonvillei subsp. albirubida. The molecular identification based on 16S rRNA gene sequences was found accurate and robust. The phylogram generated through multiple sequence alignment of all the test isolates of Nocardiopsis revealed that the isolates aroused from a single branch and validated monophyletic association. The present study is the first report of exploring Nocardiopsis isolates from the dry salt lake. These characterized Nocardiopsis isolates isolated from Didwana dry salt lake habitat are novel stains and can be of significance in the detection and utilization of novel bioactive compounds.


2020 ◽  
Vol 10 (4) ◽  
pp. 93-95
Author(s):  
M. Huzafa ◽  
Z. Jamal ◽  
A. Ahmed

The present study was carried out to investigate the phytochemical profile of Incarvillea emodi and Malva neglecta. The two plants were screened for the presence of nine different classes of bioactive compounds. The qualitative tests were performed on the aerial and underground parts of the selected plants to relate the presence of phytochemicals with bioactivities of the plants. The selected plant material was extracted with three different solvents. These extracts were then subjected to phytochemical screening and the presence of various phytochemicals was confirmed by different standard confirmatory tests. Most of the phytochemicals were found to be present. Results showed that the underground parts of Incarvillea emodi contain comparatively greater number of phytochemicals than the aerial parts. Whereas, in case of Malva neglecta the aerial parts showed more positive results than the underground parts. The current study offers proof for the presence of important bioactive compounds in the studied plants and recommends isolation and characterization of these compounds in the future.


2019 ◽  
Vol 9 (1) ◽  
pp. 85-89 ◽  
Author(s):  
M Padma ◽  
S Ganesan ◽  
T Jayaseelan ◽  
S Azhagumadhavan ◽  
P Sasikala ◽  
...  

Objective: To investigate the phytochemicals and GC-MS analysis of ethanol extracts of Silybum marianum. Methods: The air-dried leaves were powdered and subjected to selective sequential extraction using solvents of increasing polarity through percolation, ethanol to obtain an ethanolic extract. Then, each of the extracts was further subjected to gas chromatography-mass spectrometry. Results: Qualitative determination of the different biologically active compounds from crude extracts of Silybum marianum using gas chromatography-mass spectrometry revealed different types of high and low molecular weight chemical entities with varying amounts present in each of the extracts. These chemical compounds are considered biologically and pharmacologically important. Conclusions: The study established the chemical composition and anticancer activity of the plant. Keywords: Silybum marianum, Phytochemicals screening, GC–MS analysis, Bioactive compounds.


2019 ◽  
Vol 9 (3) ◽  
pp. 107-113
Author(s):  
Rashmi Shrivastava ◽  
Jyotsana Mishra

Medicinal plants play an important role in the development of potent therapeutic agents. Plant based drugs provide outstanding contribution to modern therapeutics as a source of many valuable secondary metabolites which serves as plant defense mechanisms against predator such as microorganism, insects and herbivores which have been proved to be potentially active compounds. Euphorbia Thymifolia Linn (E. Thymifolia) is commonly known as ‘duddi’ or in Sanskrit means Laghu didhika or Raktavindaka. It belongs to the family Euphorbiceae. This plant is bitter, acrid, sweet and used as thermogenic, laxative and diuretic. This plant is widely used in the ayurveda to cure many diseases like vitiated condition of constipation, helminthiasis and ringworm skin diseases and leprosy. The aim of the present study is to examine E.Thymifolia Linn whole plant for phytochemical profile, Isolation and Identification of bioactive compounds. Qualitative analysis of various phytochemical constituents was determined by the well-known test protocol available in the literature. Isolation and characterization of bioactive compound from methanolic extract of E. Thymifolia has been conducted. The bioactive compound from methanolic extracts was isolated by several processes, such as TLC, column chromatography and preparative TLC. The isolated bioactive compound is identified by UV-Vis spectrophotometer, FT-IR, 1H, 13C-NMR and Mass. The obtained compound is continued to the preparative TLC using chloroform: methanol (50:50, v/v) as eluent. The UV-Vis spectrum showed one peaks of maximum absorbance at 312.8nm. Then, the FT-IR spectrum showed several peaks that confirmed the presence of functional group of derivative of compound, i.e. 669.05, 928.58, 1070.85, 1215.51 and 1710.07cm-1. 1H and 13C-NMR spectrum confirmed the bioactive compound present in plant. Phytochemical analysis revealed the presence of alkaloids, glycosides, phenols, flavonoids, tannins. The findings of the present study will be helpful to phytochemists, pharmacologists and pharmaceutical industries. Keywords: Euphorbia Thymifolia, Qualitative phytochemical, Isolation, Bioactive compounds


2021 ◽  
Vol 29 (4) ◽  
pp. 334-339
Author(s):  
Y. V. Lykholat ◽  
N. O. Khromykh ◽  
O. O. Didur ◽  
S. I. Okovytyy ◽  
T. V. Sklyar ◽  
...  

Plants of the genus Chaenomeles Lindl. (Rosaceae) naturally grow in Southeast Asia and represent the richest resource of biologically active compounds with beneficial properties for humans. Plants of C. japonica (Thunb.) Lindl. and C. speciosa (Sweet) Nakai species, and interspecific hybrid C. × superba (Frahm) Rehder (C. japonica × C. speciosa, Superba group) have been successfully introduced in the steppe zone of Ukraine and bear fruits. In this study, we evaluated chemical composition of fruit cuticular waxes and antimicrobial activity of fruit extracts. The soluble waxes were characterized using gas chromatography-mass spectrometry (GC-MS), and 26–36 compounds, representing 91.7–96.6% of the total soluble cuticular waxes, were identified. Waxes of Chaenomeles fruits belonged to six classes, namely fatty acids, alcohols, aldehydes, esters, ethers and alkanes. Aldehydes 7-hexadecenal and heptacosanal, and alkanes hexatriacontane and tetrapentacontane were the main constituents in the soluble cuticular waxes of C. speciosa and C. × superba fruits, accounting for more than half of the total contents. However, alkane tetrapentacontane, alcohol 8,10-hexadecadien-1-ol and heptacosanal prevailed in C. japonica fruit waxes. Isopropanolic fruit extracts exhibited dose-dependent antimicrobial activity against four Gram-negative bacteria, five Gram-positive bacteria and one fungal strain in the disc diffusion assay. In general, extracts from the Chaenomeles fruits demonstrated higher activity against Gram+ bacteria than Gram- strains. The strongest inhibiting activity was shown against Staphylococcus epidermidis (by the fruit extracts of C. × superba and C. speciosa), Micrococcus lysodeikticus and Candida albicans (both by C. × superba fruit extract). Results of the study confirmed accumulation of the bioactive compounds in the fruit waxes of different Chaenomeles species and antimicrobial ability of Chaenomeles fruits as well. These findings revealed the bioactive compounds in fruit cuticular waxes and suggested health-promoting properties of introduced Chaenomeles species.


Author(s):  
Hima Bindu Bssn ◽  
Rajesh Kumar Munaganti ◽  
Vijayalakshmi Muvva ◽  
Krishna Naragani ◽  
Mani Deepa Indupalli

Objectives: Optimization, isolation, and characterization of bioactive compounds from Streptomyces lavendulocolor VHB-9 isolated from granite mines of Mudigonda village of Khammam district of Telangana state.Methods: The potent strain was identified as S. lavendulocolor VHB-9 by polyphasic taxonomy. The influence of culture conditions on growth and bioactive compounds production was investigated. Purification of bioactive compounds was done using column chromatography. The structures of the compounds were elucidated on the basis of spectroscopic analysis including Fourier transform infrared, electron spray ionization mass spectrophotometry,1H nuclear magnetic resonance (NMR), and13C NMR. The antimicrobial activity of the compounds produced by the strain was tested against both Gram-positive and Gram-negative bacteria and fungi in terms of minimum inhibitory concentration.Results: Isolation and identification of two compounds, namely (2R, 3R)-2, 3-Butanediol (B1A), and nonadecanoic acid (B1B). Fraction B4 was isolated partially purified fraction and identified by the gas chromatography-mass spectrometry analysis. B1B compound exhibited the highest activity against Bacillus megaterium, Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, and Candida albicans when compared to B1A and B4 compounds.


Nutrients ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1668 ◽  
Author(s):  
Marielle Margier ◽  
Stéphane Georgé ◽  
Noureddine Hafnaoui ◽  
Didier Remond ◽  
Marion Nowicki ◽  
...  

Pulses display nutritional benefits and are recommended in sustainable diets. Indeed, they are rich in proteins and fibers, and can contain variable amounts of micronutrients. However, pulses also contain bioactive compounds such as phytates, saponins, or polyphenols/tannins that can exhibit ambivalent nutritional properties depending on their amount in the diet. We characterized the nutritional composition and bioactive compound content of five types of prepared pulses frequently consumed in France (kidney beans, white beans, chickpeas, brown and green lentils, flageolets), and specifically compared the effects of household cooking vs. canning on the composition of pulses that can be consumed one way or the other. The contents in macro-, micronutrients, and bioactive compounds highly varied from one pulse to another (i.e., 6.9 to 9.7 g/100 g of cooked product for proteins, 4.6 to 818.9 µg/100 g for lutein or 15.0 to 284.3 mg/100 g for polyphenols). The preparation method was a key factor governing pulse final nutritional composition in hydrophilic compounds, depending on pulse species. Canning led to a greater decrease in proteins, total dietary fibers, magnesium or phytate contents compared to household cooking (i.e., −30%, −44%, −33% and −38%, p < 0.05, respectively, in kidney beans). As canned pulses are easy to use for consumers, additional research is needed to improve their transformation process to further optimize their nutritional quality.


2019 ◽  
Vol 9 (1-s) ◽  
pp. 121-124
Author(s):  
Saeema JouFarooqnal ◽  
Roohi Mohi-ud-din ◽  
Zulfiqar Ali Bhat

The present study was intended to discover the preliminary phytochemicals of Iris kashmiriana Baker collected from Kashmir region, India. The preliminary phytochemical analysis was conducted in methanolic and aqueous extracts which showed the presence of carbohydrates, tannins, flavonoids, phenols, phytosterols, saponins, diterpenes, cardiac glycosides. Among the various phytochemicals studied, alkaloids and proteins were found to be absent in both methanolic and aqueous extracts. From the results, it was noted that the extracts of Iris kashmiriana Baker was found to be a rich source of variety of active secondary metabolites. This report will lead to the further isolation and characterization of these active secondary metabolites for bioefficacy and bioactivity. Keywords: Phytochemical, Bioactive compounds, Iris kashmiriana, Mazar mund, Kashmir.


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