BIOAKTIVITAS ULVA RETICULATA FORSSKAL ASAL GILI KONDO LOMBOK TIMUR TERHADAP BAKTERI
ABSTRAK: The bioactivity of Ulva reticulata Forsskal from
Gili Kondo, East Lombok have done to Bacillus subtilis, Staphylococcus aureus,
and Escherichia coli using Kirby Bauer paper disc method. The Completely
Randomized Design using factorial form of 3 x 6
with four replication are selected in this experiment. The data analysis used Analysis Varians and continued
with Duncan’s test. Parameters was
measured to diversity of Ulva are total species were founded and diameter
of zona growth inhibition of bacterial
test.
The Research result showed that the crude extract of U. reticulata and
its fractions contain secondary metabolites which have an antibacterial
activity to all tested bacteria.The highest activity of antibacterial was
founded in methanol extract of U. reticulasta wich concentration of 25 % gives
inhibitioin zone of 8,69 mm.
The 12.5 % fractions of U.
reticulata in methanol showed inhibition
zone growth bacterial is 8,40 mm and for
10 % of its in n-hexane fraction gives
growth inhibition zone bacterial
was 8,13 mm.
KATA KUNCI: Ulva reticulata,
antibacterial activity, secondary metabolite, inhibition zone, methanol
extract, methanol fraction, n-hexane fraction
Penulis: Iin Supartinah Noer,
Leni Nurhayati
Kode Jurnal: jpbiologidd060012
