Phytochemical Screening and comparison of antibacterial assays of pimpinella anisum through extraction
This thesis report is submitted in partial fulfillment of the requirement for the degree of Bachelor of Science in Biotechnology, 2015.
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BRAC University
2016
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| Accés en línia: | http://hdl.handle.net/10361/4877 |
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10361-48772019-09-30T04:12:26Z Phytochemical Screening and comparison of antibacterial assays of pimpinella anisum through extraction Rakhshanda, Shagoofa Islam, Zubaida Marufee Department of Mathematical and Natural Science, BRAC University Biotechnnology This thesis report is submitted in partial fulfillment of the requirement for the degree of Bachelor of Science in Biotechnology, 2015. Cataloged from PDF version of thesis report. Includes bibliographical references (page 40-42). Increasing number of microbes is developing resistance to synthetic antibiotics which hinders combating infective health conditions. Assessing antimicrobial properties of naturally occurring Pimpinella anisum may help in the search for newer and less expensive antibiotics. Antibacterial effects of ethanol, methanol extracts taken of second, fifth and seventh days, along with aqueous extracts of aniseed were observed on selected bacteria. Extracts of different days had variable effects on the three bacteria (Bacillus cereus, Bacillus subtilis and Streptococcus pneumonae) showed positive antibacterial effect of aniseed. The methanol extract from the fifth day showed the greatest positive result against Bacillus cereus. The activity index of methanol extract of day five was the highest against Bacillus subtilis indicating high sensitivity to the extract. Phytochemicals such as tannin, saponin, terpenoid, flavonoid, cardiac glycoside, alkaloid, phenolic compounds and steroids were present in the aqueous extract of aniseed. Variation in the solubility of these phytochemicals in different solvents may have an effect leading to the difference in antibacterial action. It is expected that the findings of this study will stimulate researchers to design clinical trials that may lead to the development of less expensive antimicrobial agents. Shagoofa Rakhshanda B. Biotechnology 2016-01-18T12:39:25Z 2016-01-18T12:39:25Z 2015 2015-12 Thesis ID 11236002 http://hdl.handle.net/10361/4877 en BRAC University thesis are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. 44 pages application/pdf BRAC University |
| institution |
Brac University |
| collection |
Institutional Repository |
| language |
English |
| topic |
Biotechnnology |
| spellingShingle |
Biotechnnology Rakhshanda, Shagoofa Phytochemical Screening and comparison of antibacterial assays of pimpinella anisum through extraction |
| description |
This thesis report is submitted in partial fulfillment of the requirement for the degree of Bachelor of Science in Biotechnology, 2015. |
| author2 |
Islam, Zubaida Marufee |
| author_facet |
Islam, Zubaida Marufee Rakhshanda, Shagoofa |
| format |
Thesis |
| author |
Rakhshanda, Shagoofa |
| author_sort |
Rakhshanda, Shagoofa |
| title |
Phytochemical Screening and comparison of antibacterial assays of pimpinella anisum through extraction |
| title_short |
Phytochemical Screening and comparison of antibacterial assays of pimpinella anisum through extraction |
| title_full |
Phytochemical Screening and comparison of antibacterial assays of pimpinella anisum through extraction |
| title_fullStr |
Phytochemical Screening and comparison of antibacterial assays of pimpinella anisum through extraction |
| title_full_unstemmed |
Phytochemical Screening and comparison of antibacterial assays of pimpinella anisum through extraction |
| title_sort |
phytochemical screening and comparison of antibacterial assays of pimpinella anisum through extraction |
| publisher |
BRAC University |
| publishDate |
2016 |
| url |
http://hdl.handle.net/10361/4877 |
| work_keys_str_mv |
AT rakhshandashagoofa phytochemicalscreeningandcomparisonofantibacterialassaysofpimpinellaanisumthroughextraction |
| _version_ |
1814307236668768256 |