The Potential of soursop leaves (Annona muricata L.) extract as antimicrobial agents against bacterial pathogens = Potensi ekstrak daun sirsak (Annona muricata L.) sebagai senyawa antimikroba terhadap bakteri patogen

Susanto, Novelin (2012) The Potential of soursop leaves (Annona muricata L.) extract as antimicrobial agents against bacterial pathogens = Potensi ekstrak daun sirsak (Annona muricata L.) sebagai senyawa antimikroba terhadap bakteri patogen. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Antimicrobial activity from soursop leaves extract was observed in this study. The aim of this research was to determine antimicrobial capacity of soursop leaves extract in inhibiting pathogenic microorganisms. Soursop leaves were macerated with ethanol for 72 hours in room temperature. The result showed that extract could inhibit growth of S.aureus (8,48-12,64mm), B.cereus (6,28-12,28mm), S.Typhi (3,26-8,91mm) and P.aeruginosa (4,24-9,76mm), but could not inhibit A.flavus. The most sensitive bacteria was S.aureus based on MIC and MBCvalues. The active compounds in ethanolic extract of soursop leaves are tannin, flavonoid, alkaloid, saponin, phenolic compounds, steroid, and glycoside. Extract of soursop leaveswere affected by time of heating (5,10,15 minutes). The extract showed stronger inhibition capability than penicillin G and streptomycin 10 ppm for bacteria. Leakage of cells were detected by AAS and supported by SEM. In addition a GC-MS study of some fractions revealed the presence of several compounds such as /3-sitosterol, vitamin E, ethyl ester, phytol, a-linolenic acid, hexadecanoic acid, andoleic acid. This extract is classified in the low level toxic (LC50= 201,07 ,ug/ml).

Item Type: Thesis (Bachelor)
Creators:
CreatorsNIMEmail
Susanto, NovelinNIM03420080099NOVELIN_89@YAHOO.COM
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisorParhusip, Adolf Jan NexsonNIDN0107016701UNSPECIFIED
Thesis advisorGultom, Sisi Patricia L. A.NIDN0325108401UNSPECIFIED
Uncontrolled Keywords: antimicrobial activity; soursop leaves; pathogenic microorganisms
Subjects: T Technology > TP Chemical technology > TP368-456 Food processing and manufacture
Divisions: University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Depositing User: Esterina M. Jonatan
Date Deposited: 05 Oct 2018 03:06
Last Modified: 14 Oct 2020 05:03
URI: http://repository.uph.edu/id/eprint/1281

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