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primary topic: SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN PADA EKSTRAK DAUN KEPEL (Stelechocarpus burahol (Blume) Hook.f. & Thomson) DENGAN PELARUT BERBEDA KEPOLARAN

SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN PADA EKSTRAK DAUN KEPEL (Stelechocarpus burahol (Blume) Hook.f. & Thomson) DENGAN PELARUT BERBEDA KEPOLARAN
type: Thesis
type: Article
abstract: Oxidative stress triggers degenerative diseases, requiring safer exogenous antioxidants to replace synthetic ones. Kepel (Stelechocarpus burahol (Blume) Hook.f. & Thomson) leaves, rich in secondary metabolites, offer a potential natural antioxidant source. This study determined the effect of solvent polarities on the phytochemical profile, total phenolic-flavonoid contents, and antioxidant activity of kepel leaves. The extraction was carried out using n-hexane (non-polar), ethyl acetate (semi-polar), and ethanol (polar) solvents, yielding five types of extracts: n-hexane, ethyl acetate, ethanol, ethyl acetate II, and ethanol II. Analyses included qualitative screening, LC-HRMS, antioxidant assays (DPPH, ABTS), and total phenolic (Folin-Ciocalteu, 732 nm) and flavonoid (AlCl3, 398 nm) quantification via UV-Vis spectrophotometry. LC-HRMS showed n-hexane selectively extracted lipids. Ethyl acetate extracted terpenoids, phenolics, alkaloids, lipids, and steroids. Ethanol dominantly extracted alkaloids, quaternary ammoniums, steroids, amino acids, phenolics, terpenoids, and flavonoids. Ethanol II exhibited the highest antioxidant activity (IC50 6.64 ± 1.00 μg/mL; ABTS 2,929.34 ± 69.43 μM TE/mg), while n-hexane showed the lowest (IC50 42.15 ± 4.01 μg/mL; ABTS 576.99 ± 7.17 μM TE/mg). This aligns with the highest phenolics in ethanol II (311.65 ± 13.90 mg GAE/g), whereas single ethyl acetate yielded the highest flavonoids (141.70 ± 9.87 mg QE/g). Conclusively, solvent polarity significantly affects the phytochemical profile, phenolic-flavonoid contents, and antioxidant activity of kepel leaves.
date: 2026-03-06
status: published
author list: authors
type: EPrint
type: ThesisEPrint
is part of: repository
has document: SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN PADA EKSTRAK DAUN KEPEL (Stelechocarpus burahol (Blume) Hook.f. & Thomson) DENGAN PELARUT BERBEDA KEPOLARAN (Text)
has version: SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN PADA EKSTRAK DAUN KEPEL (Stelechocarpus burahol (Blume) Hook.f. & Thomson) DENGAN PELARUT BERBEDA KEPOLARAN (Text)
has published: SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN PADA EKSTRAK DAUN KEPEL (Stelechocarpus burahol (Blume) Hook.f. & Thomson) DENGAN PELARUT BERBEDA KEPOLARAN (Text)
subject: 570 Biologi, Ilmu Hayat

SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN PADA EKSTRAK DAUN KEPEL (Stelechocarpus burahol (Blume) Hook.f. & Thomson) DENGAN PELARUT BERBEDA KEPOLARAN (Text)
type: Document
has file: 22106040061_BAB-I_IV-atau-V_DAFTAR-PUSTAKA.pdf
has part: 22106040061_BAB-I_IV-atau-V_DAFTAR-PUSTAKA.pdf

SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN PADA EKSTRAK DAUN KEPEL (Stelechocarpus burahol (Blume) Hook.f. & Thomson) DENGAN PELARUT BERBEDA KEPOLARAN (Text)
type: Document

UIN SUNAN KALIJAGA YOGYAKARTA
type: Organization

FAKULTAS SAINS DAN TEKNOLOGI, UIN SUNAN KALIJAGA YOGYAKARTA
type: Organization

NIM.: 22106040061 Eva Mar’atus Solihah
type: Person
given name: NIM.: 22106040061
family name: Eva Mar’atus Solihah

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primary topic: SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN PADA EKSTRAK DAUN KEPEL (Stelechocarpus burahol (Blume) Hook.f. & Thomson) DENGAN PELARUT BERBEDA KEPOLARAN

570 Biologi, Ilmu Hayat
type: Concept