BibTex Citation Data :
@article{JMR25882, author = {Muhamad Rahadian Akbar and Rini Pramesti and Ali Ridlo}, title = {Aktivitas Antioksidan Rumput Laut Acanthophora muscoides (Linnaeus) Bory Dari Pantai Krakal Gunung Kidul Yogyakarta}, journal = {Journal of Marine Research}, volume = {7}, number = {1}, year = {2018}, keywords = {Acanthophora muscoides; Antioksidan; Radikal Bebas}, abstract = { ABSTRAK : Acanthophora muscoides merupakan salah satu rumput laut merah yang berpotensi sebagai senyawa bioaktif yang dapat digunakan sebagai antioksidan alami. Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan ekstrak metanol dan n-heksan, kadar total fenolat serta kadar pigmen (klorofil a & karotenoid) dari sampel segar A. muscoides . Penentuan aktivitas antioksidan dilakukan menggunakan metode transfer elektron dengan DPPH ( 1,1-diphenyl-2-picrylhidrazyl ) sebagai radikal bebas. Penentuan kadar total fenolat menggunakan reagen Folin-Ciocalteu dengan asam galat sebagai standar dan penentuan kandungan pigmen menggunakan prinsip spektofotometri pada λ 663 nm, 646 nm dan 470 nm. Hasil penelitian menunjukkan A. muscoides memiliki aktivitas antioksidan sangat lemah dengan nilai IC 50 ekstrak metanol 325,47 ppm dan ekstrak n-heksan 351,27 ppm, sedangkan kadar total fenolat pada masing-masing ekstrak 22,68 dan 46,19 (mg GAE/g ekstrak), kadar klorofil a 7,72 dan 24,93 (mg/g sampel), dan kadar karotenoid 28,52 dan 68,55 (µ mol/g sampel). ABSTRACT : Acanthophora muscoides is one of the red seaweed that is potentially used as a natural antioxidant. This study aims to determine the antioxidant activity of methanol and n-hexane extract, and determine the total phenolic content and levels of pigments (chlorophyll and carotenoid) of fresh samples A. muscoides. Antioxidant activity measured using electron transfer method with DPPH (1,1-diphenyl-2-picrylhidrazyl) as free radicals, while the determination of total phenolic content using the Folin-Ciocalteu reagent with gallic acid as standard and determination of pigment content measured by spectrophotometer at a wavelength of 663 nm, 646 nm and 470 nm. The result showed IC 50 value of methanol extract was 325.47 ppm and n-hexane extract was 351.27 ppm which means that A. muscoides have very weak antioxidant activity. Total phenolic content in each extract were 22.68 and 46.19 (mg GAE/g extract), chlorophyll a 7.72 and 24.93 (mg/g sample) and carotenoid 28.52 and 68.55 (μ mol/g sample). }, issn = {2407-7690}, pages = {9--18} doi = {10.14710/jmr.v7i1.25882}, url = {https://ejournal3.undip.ac.id/index.php/jmr/article/view/25882} }
Refworks Citation Data :
ABSTRAK : Acanthophora muscoides merupakan salah satu rumput laut merah yang berpotensi sebagai senyawa bioaktif yang dapat digunakan sebagai antioksidan alami. Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan ekstrak metanol dan n-heksan, kadar total fenolat serta kadar pigmen (klorofil a & karotenoid) dari sampel segar A. muscoides. Penentuan aktivitas antioksidan dilakukan menggunakan metode transfer elektron dengan DPPH (1,1-diphenyl-2-picrylhidrazyl) sebagai radikal bebas. Penentuan kadar total fenolat menggunakan reagen Folin-Ciocalteu dengan asam galat sebagai standar dan penentuan kandungan pigmen menggunakan prinsip spektofotometri pada λ 663 nm, 646 nm dan 470 nm. Hasil penelitian menunjukkan A. muscoides memiliki aktivitas antioksidan sangat lemah dengan nilai IC50 ekstrak metanol 325,47 ppm dan ekstrak n-heksan 351,27 ppm, sedangkan kadar total fenolat pada masing-masing ekstrak 22,68 dan 46,19 (mg GAE/g ekstrak), kadar klorofil a 7,72 dan 24,93 (mg/g sampel), dan kadar karotenoid 28,52 dan 68,55 (µ mol/g sampel).
ABSTRACT : Acanthophora muscoides is one of the red seaweed that is potentially used as a natural antioxidant. This study aims to determine the antioxidant activity of methanol and n-hexane extract, and determine the total phenolic content and levels of pigments (chlorophyll and carotenoid) of fresh samples A. muscoides. Antioxidant activity measured using electron transfer method with DPPH (1,1-diphenyl-2-picrylhidrazyl) as free radicals, while the determination of total phenolic content using the Folin-Ciocalteu reagent with gallic acid as standard and determination of pigment content measured by spectrophotometer at a wavelength of 663 nm, 646 nm and 470 nm. The result showed IC50 value of methanol extract was 325.47 ppm and n-hexane extract was 351.27 ppm which means that A. muscoides have very weak antioxidant activity. Total phenolic content in each extract were 22.68 and 46.19 (mg GAE/g extract), chlorophyll a 7.72 and 24.93 (mg/g sample) and carotenoid 28.52 and 68.55 (μ mol/g sample).
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