Skrining Bioaktivitas Ekstrak Kulit Akar Bakau Merah (Rhizophora apiculata bl.) Terhadap Daya Hambat Pertumbuhan Koloni Bakteri Streptococcus sp.
Abstract: The research to
determine the bioactivity of the root bark of Rhizophora apiculata extract on
the inhibition of the growth of colonies of bacteria Streptococcussp was
carried out. Roots of Rhizophora apiculata bark extract is obtained bextraction
by maceration and liquid-liquid partition using solvents methanol and thsolvent
of n-hexane, chloroform, and ethyl acetate, respectively. Bioactivity testingagainst
bacterial colony growth of Streptococcus sp. performed using the agar diffusionmethod
on media nutrient agar. The results showed that extracts of n-hexanechloroform
extract and ethyl acetate extract of the root bark of Rhizophora apiculatawere
impregnated on paper discs can form a clear zone around it. This indicates that
the roots of Rhizophora apiculata bark extract could inhibit the growth of
colonies ofbacteria Streptococcus sp. Greatest inhibition zone diameter derived
from the ethy acetate fraction of 2.90 mm, followed by a 1:03 mm from the
chloroform fraction, anby 0:47 mm fraction of n-hexane.
Penulis: Lili Darlian
Kode Jurnal: jpkimiadd110191
