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All Journal Jurnal Periodic Jurusan Kimia UNP Eksakta : Berkala Ilmiah Bidang MIPA
Yuliandari, Fadhira
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering

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Skrining Fitokimia Ekstrak Metanol Dari Daun Jati Belanda (Guazuma ulmifolia) Yuliandari, Fadhira; Parbuntari, Hesty
Periodic Vol 12, No 3 (2023): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v12i3.118434

Abstract

Dutch teak (Guazuma ulmifolia) is a plant that belongs to the family Sterculiaceae and grows in Ecuador, Panamaa, and other American Latin countries. This Dutch teak is found in bushes, as well as in forests. This Dutch teak plant is often the most needed for health, especially the leaves. Dutch teak leaves have been used as traditional medicine to maintain a healthy body, lose weight as a slimming herb, to lowers cholesterol levels in the body. Research has been done phytochemical screening to determine the secondary metabolites contained in Guazuma ulmifolia. Phytochemicals test results showed that Guazuma ulmifolia contains secondary metabolites in the form of flavonoids, steroids, alkaloid, and saponins.
Isolation of Flavonoid Compounds and Anti-Cholesterol Test of Dutch Teak Leaf Extract (Guazuma ulmifolia Lamk.) Parbuntari, Hesty; Yuliandari, Fadhira; Martha, Rahma Diyan
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 24 No. 03 (2023): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol23-iss03/408

Abstract

Dutch teak (Guazuma ulmifolia Lamk.) is a tree originating from Latin America (Brazil and Mexico). The results of the phytochemical test showed that Dutch teak leaves positively contained flavonoids, alkaloids (Dragendorff reagent), steroids, and saponins. The purpose of this study was to characterize the flavonoid compounds and test the anti-cholesterol properties of Dutch teak leaf extract. Flavonoid characterization methods used Mg-HCl (yellow), H2SO4 (reddish orange), NaOH (yellow), KKt-2A, UV-Vis, and FT-IR reagents. Anti-cholesterol test using the Lieberman-Burchard method. The flavonoid crystals obtained were in the form of amorphous crystals of 0.1047 grams. In KKt-2A there is a change in color from yellow to greenish yellow when viewed with a UV lamp. The UV-Vis spectrophotometer has an absorption wavelength of 326 nm. The results of FT-IR analysis showed the presence of functional groups: OH, CH, C=O, C=C, and COC. Based on these data it can be concluded that the isolated flavonoids are in the form of amorphous crystals which belong to the flavone class with the name 5,7,4' - Trihydroxyflavone-6-Prenyl. The results of the cholesterol reduction test stated that Dutch teak leaves could be anti-cholesterol as seen from the absorbance value being smaller and the percentage of anti-cholesterol activity being greater.
Co-Authors Parbuntari, Hesty Rahma Diyan Martha