Phytochemical Study, Antimicrobial and Anticancerous Activity of Cassia tora Linn | Open Access Journals

ISSN: 2322-0066

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Phytochemical Study, Antimicrobial and Anticancerous Activity of Cassia tora Linn

Sabyasachi C1*, Kaniz WS1, Anupam B2, Manas B1

1Department of Biotechnology, The University of Burdwan, India

2Department of Zoology, The University of Burdwan, India

*Corresponding Author:
Sabyasachi C
Faculty, Department of Biotechnology
The University of Burdwan, India
E-mail: sabsach@rediffmail.com

Received date: 27/07/2016; Accepted date: 30/07/2016; Published date: 01/08/2016

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Editorial

The knowledge of using herbal flora in the ethnic communities is descended from one generation to another. Ethno medicinal plants are the area of research to find out alternative medicine of drugs to avoid emergence of multidrug resistance. Now a days, it is becoming a threat to people in most of clinical cases. A traditional Indian medical practice using plants is known as Ayurveda. Lots of plants used to cure different diseases using their natural healing and restoring properties are mentioned in the Ayurveda. People of different tribal communities inhabiting in India follow different cultures, rituals and knowledge of using traditional medicinal plants. Vast ranges of organic compounds present in the plants have been classified as primary and secondary metabolites. Primary metabolites of plants played essential roles in photosynthesis, respiration, growth and development. Phytosterols, acyl lipids, nucleotides, amino acids and organic acids are the major primary metabolites. Some other phytochemicals accumulated in the plant species are known as secondary metabolites. Some secondary metabolites are playing a major role in plant defence system as they provide protection against herbivores, microbial infection, pollinators and seed dispersing animals. Some secondary metabolites are used as dyes; fibres, glues, oils, waxes, drugs, perfumes as well as they are considered as sources of new natural drugs, antibiotics, insecticides and herbicides [1]. Cassia tora Linn. is an ayurvedic plant, belongs to the family Leguminaceae and sub-family Caesalpiniaceae [2]. So, the present research has been selected to study the pharmacological activities of the plant such as antimicrobial and anticancer activities.

The crude extracts of leaf and seed of the plants were prepared separately using aqueous as well as organic solvents mainly ethyl acetate and hexane to study the pharmacological activities of the plant such as antimicrobial and anti-cancerous activities.

Phytochemical analyses

The present study preliminary focussed on some preliminary phytochemical tests to identify the presence of secondary metabolites in the leaf extract and seed extract of C. tora plant. Positive result for alkaloid, phenol, saponin, carbohydrate, glycoside and protein test (Tables 1 and 2) indicated the presence of those secondary metabolites [3-7]. In this study, it was also observed that ethyl acetate fraction of leaf extract showed strong positive result for phenol in compare to hexane fraction leaf extract and aqueous fraction of leaf extract. In this study, it was observed that leaf extract in ethyl acetate solvent showed strong positive result for phenol test in compare to hexane fraction and aqueous fraction of leaf extract. On the other hand, seed extract in ethyl acetate solvent showed strong positive result for carbohydrate test in compare to hexane and aqueous fraction of seed extract.

Gene Sequences
SOCS3 forwards CAC AGC AAG TTT CCC GCC GCC
reverse GTG CAC CAG CTT GAG TAC ACA
GAPDH forwards TCA ACG GCA CAG TCA AGG
reverse ACT CCA CGA CAT ACT CAG C

Table 1. Primer sequences of SOCS3 and GAPDH gene.

Group Blank DMSO 17β-estrodiol 10nM
12h 24h
Protein mg/ml 1.621 1.821 1.876 1.952

Table 2. Protein concentration measured by BCA assay.

Secondary metabolites such as alkaloid, phenol, saponin, carbohydrate, glycoside and protein present in leaf and seed extract of ethyl acetate, hexane and aqueous solvent.

Phenolic content

The phenolics content in leaf and seed extract of C. tora plant was measured [8] by extrapolation of concentration of phenolics per ml extract using data of optical density of each extract from standard curve (Figure 1) of commercial phenol. It was evaluated that phenolics content maximum in both ethyl acetate leaf extract and seed i.e. 1300 μg and 900 μg phenolics per ml respectively, whereas phenolics content was 650 μg and 700 μg per ml in aqueous leaf extract respectively and 50 μg and 50 μg phenolics per ml was found to present in hexane leaf and seed extract respectively. From the standard curve, it was evaluated that the total phenolics concentration of ethyl acetate leaf and seed extract of C. tora plant was 1300 μg/ml (optical density 0.57) and 900 μg/ml (O.D. 0.39) respectively; phenolics concentration of aqueous leaf and seed extract of C. tora plant was 650 μg/ml and 700 μg/ml. while phenolics concentration of hexane-leaf and hexane-seed extract of C. tora plant was 50 μg/ml.

biology-standard-curve-phenol

Figure 1: Standard curve of phenol.

Antimicrobial activity

Most of the antimicrobial activities were found with the organic solvents [4,5,9]. The leaf and seed extracts showed significant antimicrobial activity by effective zone of inhibition. From this study it was evidenced that C. tora leaf and seed extract have intense antimicrobial activity against a few pathogenic bacteria like Klebsiella oxytoca, Salmonella typhi and Pseudomonas aeruginosa as well as antifungal activity against Aspergillus niger and Curvularia lunata. Ethyl acetate leaf extract of C. tora plant showed maximum zone of inhibition against Salmonella typhi and Pseudomonas aeruginosa. Ethyl acetate leaf extract of C. tora showed maximum zone of inhibition against Curvularia lunata.

Anti-cancer activity

Effect of ethyl acetate fraction of leaf extract and hexane fraction of leaf extract on breast cancer cell line MCF7 was observed by MTT assay [10]. During this study, investigation of anticancer activity of C. tora leaf and seed extract was done which revealed the effect of hexane fraction and ethyl acetate fraction of leaf respectively on MCF7 breast cancer cell line using MTT assay. Half dilution and one-fourth dilution of hexane leaf extract showed 42% and 55% cell viability after treatment of cancer cell line i.e. less percentage of cell viability. The cell viability of cancer cell line treated with ethyl acetate fraction of half dilution and one-fourth dilution of leaf extract is 48% and 77% respectively i.e. less effective than hexane fraction of leaf extract of same dilutions as shown in (Figure 2). It indicated that the hexane fraction of leaf extract showed more effective anticancer activity than ethyl acetate fraction.

biology-cell-viability-cancerous-cells

Figure 2: Percentage of cell viability of cancerous cells treated with ethyl acetate and hexane fraction of C. tora leaf extract separately.

Acknowledgement

The authors are grateful to the Department of Biotechnology, supported by DBT-Govt. of India and DBT- Boost III (Govt. of West Bengal) and Department of Zoology for providing infrastructure and technical facility for completion of this research work.

References