International Journal of Marine Science 2015, Vol.5, No.53: 1-6
5
The phytochemical test results showed
H.renschi
and
H. gracillis
extracts contain steroid and saponins
compounds, while alkaloids, terpenoids, tannins and
flavonoids are not contained in the extract. In
accordance with the phytochemical test results that
containing steroids compound, then it is consistent
with the NMR test results which found the active
compounds in the form of β-sitosterol in the n-hexane
solvent. β-sitosterol included in one type of steroid. In
addition to the discovery of β-sitosterol, the extract
was also found that the oleat acid compound is part of
primary metabolite (Hendri, 2015; Anam, 1999;
Shanab, 2007).
The phytochemical test results on other research state
that extracts of
Caulerpa
sp,
Euchema
sp,
Gracilaria
sp and
Sargassum
sp contain alkaloids, flavonoids,
steroids, triterpenoids and tannins (Siregar et al.,
2012). Other phytochemical test results state that
bioactive steroid compounds always found in a variety
of phytochemical test (Siregar et al., 2012; Alamsyah
et al., 2014), whereas the saponin compound in
(Siregar et al., 2012) study is not found at all of the
four seaweed extract tested, whereas in the study of
(Firdaus., 2008; Alamsyah et al., 2014), saponins can
be found.
(Kolanjinathan et al., 2009) reported the discovery of
several compounds that are bioactive metabolites
derived from several types of seaweed that is;
brominated, aromatic, nitrogen-heterocyclic, sterols,
protein, and polysaccharide sulfate. Results of another
study states that
Sargassum
sp has potential as an
antioxidant. Specifically, this plant contains phlorotanin,
a polyphenol that is not found in other plants or
seaweed. These compounds have proven capable of
inhibiting lipid peroxidation and free radical activity.
S.
duplicatum
contain alkaloids, saponins, tannins,
steroids and glycosides with phlorotanin levels from
9.2822 to 37.3693 mg/g. Retention time fraction
extract: 0.97; 0.75, and 0.46, and efficiency of
anti-radical is 11264.54 (Firdaus., 2008).
Conclusions
Results of the study of the effectiveness of extracts of
Halimeda
sp against pathogens is have antibacterial
activity against bacteria of
S.typhi, S. aureus, E. co
li
and
B. subtilis
and has effectiveness to decrease the
amount of pathogenic bacteria. The phytochemical
test result showed steroid and saponins compounds.
While the TLC test results indicate the potential of the
compound, although not pure.
Halimeda
sp extracts
have antimicrobial. However, further research is
needed to determine the compounds that exist and
chemical structure. Environmental and geographical
factors need to be done to see the influence on the
type and content of the active compound.
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