CD Skripsi
Morfoanatomi Dan Uji Histokimia Jambu Duwet (Syzygium Cumini (L.) Skeels.)
Syzygium cumini L. Skeels or Duwet (Java plum) is a plant that belong to the
Myrtaceae family. Duwet plants contain secondary metabolites such as
flavonoids, tannins, and contain essential oil. The content of secondary
metabolites in duwet leaves has great potential to be used as medicine.
Identification of metabolites at the tissue level, synthesis sites or storage sites for
pharmacological metabolites in plant leaves can be carried out by histochemical
tests. The purpose of this study was to analyze the morphoanatomy and
histochemistry of duwet leaves and fruit (Syzygium cumini). This research was
conducted at the Microtechnical Laboratory and Botanical Laboratory, FMIPA,
Riau University. The research method used paraffin, paradermal, and
histochemical methods. Observations of anatomy and histochemical color changes
in organs were observed with a microscope and optilab. The anatomical structure
of duwet guava leaves consists of a cuticle layer, epidermal tissue, palisade tissue,
spos tissue, transport bundle tissue (xylem and phloem), and secretory cavities.
The palisade tissue in the lamina consists of two layers, the internal phloem is
found in the transport bundle in the petiole and midrip. Histochemical tests on
leaves and fruit showed positive results. Alkaloids, tannins, flavonoids and starch
are present in the epidermis, palisade, sponges, transport bundles and secretory
cavities. The essential oil is found in the secretory cavities of the leaves.
Keywords: Fruit, jambu duwet (Syzygium cumini), histochemistry, leaves,
morphoanatomy, secondary metabolites.
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