scholarly journals The Antioxidant Activity of Pagoda Flower (Clerodendrum paniculatum L.) Ethanol Extract using Visible Spectrophotometric Method

2019 ◽  
Vol 2 (2) ◽  
pp. 14-19
Author(s):  
Ihsanul Hafiz ◽  
Mandike Ginting ◽  
Yuermaileni Yuermaileni
Keyword(s):  
Antioxidant Activity ◽  
Traditional Medicine ◽  
Plant Species ◽  
Spectrophotometric Method ◽  
Ethanol Extract ◽  
Number Of Species ◽  
Ic50 Value ◽  
Dpph Method ◽  
Vit C

Abstract. Pagoda flower is one of the plant species included in the genus Clerodendrum which has a number of different species of 580 species, and is spread evenly in Asia, Africa, America, and Australia. A number of species of this genus have been used in traditional medicine in Asia and Africa. India, China, Korea, Thailand and Japan. The antioxidant activity of this plant is known to be very strong, so in this article the antioxidant activity of the flower part of the Clerodendrum paniculatum L. species will be described. The ability of antioxidant activity was measured by the DPPH method (1,1-diphenyl-2-picrylhydrazyl) which was measured using a Visible spectrophotometer using Vit C as a comparison. The results showed that the ethanol extract of pagoda flowers has antioxidant activity with an IC50 value of 64.889 ppm (strong). The Vit C comparison has an IC50 value of 8.539 ppm (very strong). Keyword: Antioxidant, Clerodendrum Paniculatum L., Visible Spectrophotometric. Abstrak. Bunga Pagoda merupakan salah satu spesies tanaman yang termasuk dalam genus Clerodendrum yang memiliki jumlah spesies yang berbeda sejumlah 580 spesies, dan tersebar merata di Asia, Afrika, Amerika, dan Australia. Sejumlah spesies dari genus ini telah digunakan dalam pengobatan tradisional di kawasan Asia dan Afrika. India, China, Korea, Thailand, dan Jepang. Aktivitas antioksidan dari tanaman ini diketahui  sangat kuat, sehingga dalam artikel ini akan dipaparkan aktivitas antioksidan yang dimiliki oleh ekstrak etanol bagian bunga dari spesies Clerodendrum paniculatum L. Pengujian aktivitas antioksidanya dilakukan dengan metode DPPH (1,1-diphenyl-2-picrylhydrazyl) yang diukur menggunakan spektrofotometer Visibel dengan menggunakan Vit C sebagai pembanding. Hasil penelitian menjukkan bahwa ekstrak etanol bunga pagoda memiliki aktivitas antioksidan dengan nilai IC50 sebesar 64,898 ppm (kuat). Pembanding Vit C memiliki nilai IC50 sebesar  8,539 ppm (sangat kuat). Kata Kunci: Antioksidan, Clerodendrum paniculatum L., DPPH, Spektrofotometri Vis.

scholarly journals SKRINING FITOKIMIA, UJI AKTIVITAS ANTIOKSIDAN, DAN TOKSISITAS DARI EKSTRAK DAUN KERSEN (Muntingia calabura L.) DENGAN METODE 1.1-diphenyl-2-picrylhydrazyl (DPPH) dan Brine Shrimp Lethality Test (BSLT)

PHARMACON ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 315
Author(s):  
Selin Widjaya ◽  
Widdhi Bodhi ◽  
Adithya Yudistira
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Brine Shrimp ◽  
Ethanol Extract ◽  
Brine Shrimp Lethality ◽  
Phytochemical Content ◽  
Lc50 Value ◽  
Ic50 Value ◽  
Dpph Method ◽  
Muntingia Calabura

ABSTRACTKersen (Muntingia calabura L.) is a plant that has begun to be eliminated and was rarely used because it is often considered to have no economic value and lack of knowledge about its utilization, whereas kersen plants contain flavonoids, saponins, and tannins which were have high benefit for health. The content of metabolites is affected by soil nutrient elements and difference place of growth. This study aims to determine the potential of kersen leaves grown in North Minahasa based on phytochemical content, ability of antioxidant activity, and toxicity. Kersen leaves were extracted using sequential maceration method with n-hexane, ethyl acetate, and ethanol as solvents. Phytochemical Screening using several reagents which tailored to the type of phytochemical test. 1.1-diphenyl-2-picrylhydrazyl (DPPH) method is used to evaluate antioxidant activity, and Brine Shrimp Lethality Test (BSLT) method is used to evaluate toxicity. The result of this study indicate that the n-hexane extract contains phenols, flavonoids, and tannins, with IC50 value 12.54 μg/mL, and LC50 value 881 μg/mL. Ethyl acetate extract contains phenols, flavonoids, tannins, and saponins, with IC50 value 61.3 μg/mL, and LC50 value 1758 μg/mL. Ethanol extract has phenol, flavonoid, tannin, saponin, and terpenoid content, with IC50 value 9.01 μg/mL, and LC50 value 106 μg/mL. Keywords : Kersen leaves, Antioxidant, Toxicity, IC50, LC50 ABSTRAKKersen (Muntingia calabura L.) merupakan tanaman yang sudah mulai tersingkirkan dan jarang dimanfaatkan karena sering dianggap tidak punya nilai ekonomis dan kurangnya pengetahuan tentang pemanfaatannya, padahal tanaman kersen memiliki kandungan flavonoid, saponin, dan tanin yang bermanfaat tinggi untuk kesehatan. Kandungan senyawa metabolit dipengaruhi oleh unsur hara tanah dan perbedaan tempat tumbuh. Penelitian ini bertujuan untuk mengetahui potensi dari daun kersen yang tumbuh di Minahasa Utara berdasarkan kandungan fitokimia, kemampuan aktivitas antioksidan, dan toksisitasnya. Ekstrak daun kersen diekstraksi dengan metode maserasi sekuensial menggunakan pelarut n-heksan, etil asetat, dan etanol.  Skrining fitokimia menggunakan beberapa reagen yang disesuaikan dengan jenis uji fitokimia. Metode 1.1-diphenyl-2-picrylhydrazyl (DPPH) digunakan untuk mengevaluasi aktivitas antioksidan, dan metode Brine Shrimp Lethality Test (BSLT) digunakan untuk mengevaluasi toksisitas. Hasil penelitian ini menunjukkan bahwa ekstrak n-heksan memiliki kandungan fenol, flavonoid, dan tanin, nilai IC50 12,54 μg/mL, dan nilai LC50 881 μg/mL. Ekstrak etil asetat memiliki kandungan fenol, flavonoid, tanin, dan saponin, nilai IC50 61,3 μg/mL, dan nilai LC50 1758 μg/mL. Ekstrak etanol memiliki kandungan fenol, flavonoid, tanin, saponin, dan terpenoid, nilai IC50 9,01 μg/mL, dan nilai LC50 106 μg/mL. Kata kunci : Daun Kersen, Antioksidan, Toksisitas, IC50, LC50

scholarly journals Aktivitas Antioksidan Ekstrak Etanol Daun Ganitri (Elaeocarpus Ganitrus Roxb.) dengan Metode DPPH (2,2 Difenil-1-Pikrilhidazil)

2021 ◽  
Vol 18 (1) ◽  
pp. 60-67
Author(s):  
Naelaz Zukhruf Wakhidatul Kiromah ◽  
Sadam Husein ◽  
Titi Pudji Rahayu
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Leaf Extract ◽  
Ethanol Extract ◽  
Antioxidant Compounds ◽  
Synthetic Antioxidant ◽  
Activity Test ◽  
Impaired Liver ◽  
Ic50 Value ◽  
Dpph Method

Free radicals are one of the cause of various diseases. The use of synthetic antioxidant compounds could prevent the effect of the free radicals, however may cause adverse effects on the human body such as impaired liver, lung, intestinal and poisoning. Therefore antioxidant from natural resources needs to be developed. The purpose of this research was to determine the antioxidant activity and IC50 value of the ethanol extract of ganitri (Elaeocarpus ganitrus Roxbs.) leaves. Ganitri leaf ethanol extract activity test was carried out using DPPH method with vitamin C as a standard. Antioxidant activity was determined as a decreas in the absorbance of DPPH at 517 nm wavelength after an addition of the extract with the concentrations of 20, 40, 80, and 100 ppm. The antioxidant acitivity measurement of the ganitri leaf extract showed that the linier regression equation obtained was y = 0.3669x + 29.546, r = 0.4573 while the IC50 value was 54,12 ppm. Based on the result, it is concluded that the ethanol extract of ganitri (Elaeocarpus ganitrus Roxb.) leaf showed was categorized as strong antioxidant.

scholarly journals THE QUALITY PARAMETERS, TOTAL FLAVONOIDS DETERMINATION AND ANTIOXIDANT ACTIVITY COMPOUND OF ANDALIMAN FRUIT ANDALIMAN FRUIT (ZANTHOXYLUM ACANTHOPODIUM DC.) EXTRACT

2021 ◽  
pp. 34-40
Author(s):  
YUNAHARA FARIDA ◽  
WIDI AZELA ◽  
MEGA ELOK LESTAR ◽  
DIAH KARTIKA PRATAMI
Keyword(s):  
Antioxidant Activity ◽  
Methyl Palmitate ◽  
Ethanol Extract ◽  
Quality Parameters ◽  
Total Flavonoid ◽  
Gas Chromatography Mass Spectrometry ◽  
Uv Spectrophotometry ◽  
Benzenedicarboxylic Acid ◽  
Ic50 Value ◽  
Dpph Method

Objective: The aim of this study was to investigate the chemical compound of the antioxidant activity of the extract from andaliman fruit (Zanthoxylum acanthopodium DC.) and the quality parameters and the total flavonoid determination of the highest antioxidant activity. Methods: The andaliman fruits were extracted using a solvent such as n-hexane, ethyl acetate and 70% ethanol obtained extracts, follow the antioxidant activity using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. The quality parameters and total flavonoid determination were performed from highest antioxidant activity. Fractionated was done using vacuum liquid chromatography (VLC) with the mobile phase chloroform-methanol (9:1 ~1:9). Purification with Thin Layer Chromatography (TLC) preparative, identification using UV-spectrophotometry, FTIR, Gas chromatography Mass Spectrometry (GCMS) analysis. Results: The 70% of ethanol has the highest antioxidant activity with IC50 value 84.11±0.47 ppm; the quality parameters in this study meet the quality requirements, both specific and nonspecific parameters. Total flavonoid content of the 70% ethanol extract was 2.37±0.02%. The results of the GCMS studies showed the presence of 1,2-benzenedicarboxylic acid, mono (2-ethylhexyl) ester; squalene, methyl palmitate, methyl isopalmitate, n-tetracosanol-1 and 4-isopropyl chalcone. Conclusion: The results indicate that the 70% ethanol extracts of andaliman fruits contains 1,2-benzenedicarboxylic acid, mono (2-ethylhexyl) ester; squalene, methyl palmitate, methyl isopalmitate, n-tetracosanol-1 and 4-isopropyl chalcone have antioxidant activity with IC50 value 51.35 ppm.

scholarly journals Aktivitas Antioksidan Akar Bawang Merah Lokal Palu (Allium cepa Var Aggergatum L.) dengan Berbagai Kepolaran Pelarut

KOVALEN ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. 198-205
Author(s):  
Nur Faidah ◽  
Nurhaeni ◽  
Ahmad Ridhay ◽  
Jusman ◽  
Abd. Rahman Razak ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Allium Cepa ◽  
Ethyl Acetate Extract ◽  
Ethanol Extract ◽  
Root Extract ◽  
Polar Solvents ◽  
Ic50 Value ◽  
Dpph Method ◽  
Keywords Antioxidants

Research on the antioxidant activity of the local onion roots of Palu (Allium cepa Var Aggregatum L.) with various polarity solvents has been carried out. This study aims to determine the potential of Palu local shallot root extract as an antioxidant and determine the IC50 value of the Palu local shallot root antioxidant activity. The method applied in this research is maceration using n-hexane, ethyl acetate, and ethanol. The extracts from each solvent were tested for their antioxidant activity by the DPPH method. The results of the study showed that the IC50 value in n-hexane extract, ethyl acetate extract, and ethanol extract were 579.98 ppm, 518.28 ppm 315.83 ppm and as a comparison used ascorbic acid obtained IC50 of 53.69 ppm. Based on the results obtained, the best antioxidant activity is in polar solvents (ethanol extract) compared to other solvents. Keywords: Antioxidants, roots, Palu local shallots, Allium cepa Var Aggregatum L.

scholarly journals Antioxidant Activity of n-Hexane, Ethyl Acetate and Ethanol Extract from Lakoocha Leaves (Artocarpus lacucha Buch.-Ham) using DPPH Method

2018 ◽  
Vol 1 (2) ◽  
pp. 41-47
Author(s):  
Poppy Anjelisa Zaitun Hasibuan ◽  
Mardiana
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Radical Scavenging ◽  
Ethanol Extract ◽  
Positive Control ◽  
Hexane Extract ◽  
Phytochemical Screening ◽  
Ic50 Value ◽  
Dpph Method

This study aimed to investigate phytochemical screening and antioxidant activity of n–hexane, ethyl acetate and ethanol extract from lakoocha leaves. The powdered simplicia was macerated with n–hexane, ethyl acetate and ethanol 96% successively, filtered, then concentrated using rotary evaporator to obtain n–hexane extract, ethyl acetate extract and ethanol extract. Phytochemical screening and antioxidant activity was performed against these extracts. Antioxidant activity was determined by DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging method using ultraviolet-visible spectrophotometer at wavelength of 516 nm after incubated for 60 minutes in dark place. Quercetin was used as positive control. The result of phytochemical screening showed n-hexane extract contains steroid, ethyl acetate extract contain steroid, tannin, glycoside, flavonoid and saponin, whereas ethanol extract contain tannin, glycoside, flavonoid and saponin. The IC50 value of n–hexane, ethyl acetate and ethanol extract was 1062.03±1.42 ppm, 323.18±0.02 ppm and 99.23±0.07 ppm respectively, whereas for quercetin was 2.32±0.01 ppm. This study showed that ethanol extract had antioxidant activity with strong category whereas n-hexane extract and ethyl acetate extract had inactive antioxidant activity with very weak categories.       Keyword: Antioxidant Activity, DPPH, Lakoocha leaf

scholarly journals Antioxidant Activities of Muntingia calabura, Syzygium cumini, Ocimum basilicum, and Eleutherine bulbosa using DPPH Method

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Ani Haerani ◽  
Anis Yohana Chaerunisa ◽  
Anas Subarnas
Keyword(s):  
Antioxidant Activity ◽  
Ethanol Extract ◽  
Natural Antioxidants ◽  
Extraction Process ◽  
Ocimum Basilicum ◽  
Syzygium Cumini ◽  
Determination Process ◽  
Ic50 Value ◽  
Dpph Method ◽  
Muntingia Calabura

Antioxidants are substances that can provide endogenous protection and exogenous oxidative stress by capturing free radicals. Many plants are efficacious as antioxidants, namely plants that contain polyphenols, especially flavonoids, so many are formulated as natural antioxidants. Plants such as Muntingia calabura, Syzygium cumini, Ocimum basilicum, and Eleutherine bulbosa contain polyphenol compounds, especially flavonoids which are efficacious as natural antioxidants. This research aimed to study antioxidant activity derived from some potential plants using the DPPH method by calculating the IC50 value of each plant extract. This research method starts from the determination process to prove the validity of the plants used, the extraction process using the maceration method with 70% ethanol solvent, then the antioxidant activity of extracts from each plant was carried out using the DPPH method. This research starts from the determination process to ensure the correctness of the plants used, then the extraction process is carried out using the maceration method with 70% ethanol solvent. After that the antioxidant activity was determined from the four plants using the DPPH method to see the strongest IC50 value among the four plants. IC50 is the concentration of the sample to inhibit 50% of free radicals. The results of IC50 values from ethanol extract of M. calabura leaves, Syzygium cumini leaves, Ocimum basilicum leaves and Eleutherine bulbosa bulbs, were 18.72; 63,84; 141.59 and 173.15 ppm. Ethanol extract of M. Calabura has a smaller IC50 value of 18.72 ppm which has a very strong and most powerful antioxidant from the ethanol extract of Syzygium cumini, Ocimum basilicum and Eleutherine bulbosa. Keywords : Antioxidant, Muntingia calabura, Syzygium cumini, Ocimum basilicum, Eleutherine bulbosa, DPPH Method

scholarly journals Pengaruh Metode Pengeringan Terhadap Aktivitas Antioksidan Ekstrak Etanol

2019 ◽  
Vol 3 (1) ◽  
pp. 44-52
Author(s):  
Endra Pujiastuti ◽  
Rahma Sani Saputri
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Ethanol Extract ◽  
Drying Methods ◽  
Drying Method ◽  
Oven Method ◽  
Ic50 Value ◽  
Dpph Method ◽  
Qualitative Test ◽  
High Antioxidant Activity

Drying is the most important step to keep the compound stability in simplicia and is very influential to produce good quality igredients in the antioxidant activity contained in the simplicia. Antioxidants are oxidation-free inhibitors of free radical reactions. Parijoto is one of the plants that have antioxidant compounds.This study aims to determine the effect of drying, concentration of antioxidant activity of parijoto (Medinilla speciosa Blume) fruit. The drying method used is direct sunlight drying, indirect sunlight and oven. The antioxidant activity of ethanol extract on drying method was determined by 2,2 diphenyl-1-picrylhidrazyl (DPPH) method which is free radical. The qualitative test DPPH showed that the higher levels of ethanol extract from the three drying methods further diminished the color of DPPH solution in ethanol.The result showed thet the drying method gave different effect to the antioxidant activity of parijoto fruit which is significant(p0,05). Drying methods wich have high antioxidant activity are given by drying using oven method with an IC50 value 33,75µg/ml.

scholarly journals Aktivitas Antioksidan Fraksi Dietileter Buah Mangga Arumanis (Mangifera indica L.) dengan Metode DPPH

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Dewi Andini Kunti Mulangsri ◽  
Aqnes Budiarti ◽  
Endah Novia Saputri
Keyword(s):  
Antioxidant Activity ◽  
Vitamin C ◽  
Diethyl Ether ◽  
Mangifera Indica ◽  
Ethanol Extract ◽  
Natural Antioxidants ◽  
Antioxidant Systems ◽  
Ic50 Value ◽  
Dpph Method ◽  
Ether Fraction

ABSTRAK Sistem antioksidan merupakan bagian dari sistem kekebalan tubuh yang mampu menghambat reaktifitas radikal bebas. Sumber alami antioksidan salah satunya adalah buah yaitu buah mangga Arumanis. Proses fraksinasi dengan pelarut dietileter dilakukan untuk menyari senyawa-senyawa yang bersifat semipolar yang diharapkan memiliki potensi sebagai antioksidan. Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan fraksi dietil eter ekstrak etanol buah mangga arumanis (Mangifera indica L.) dengan Metode DPPH. Ekstraksi dilakukan dengan metode maserasi menggunakan pelarut etanol 70%, kemudian dipartisi cair-cair menggunakan pelarut dietil eter. Penentuan aktivitas antioksidan menggunakan metode DPPH dengan membuat seri konsentrasi fraksi dietil eter ekstrak etanol buah mangga Arumanis yaitu 12,5; 25; 50 dan 100ppm. Vitamin C digunakan sebagai larutan pembanding dengan seri konsentrasi 0,625; 1,25; 2,5 dan 5 ppm. Hasil penelitian menunjukkan bahwa fraksi dietil eter ekstrak etanol buah mangga arumanis memiliki aktivitas antioksidan dengan nilai IC50 sebesar 75,22 ppm dan 1,18 ppm untuk Vitamin C. Fraksi dietileter ekstrak etanol buah mangga Arumanis memiliki potensi lemah sebagai antioksidan jika dibandingkan dengan Vitamin C. Kata Kunci: antioksidan, fraksi dietileter, buah mangga arumanis, Mangifera indica, DPPH ABSTRACT Antioxidant systems are part of the immune system which is able to inhibit the reactivity of free radical. Source of natural antioxidants is a fruit that is mango Arumanis. Process of fractionation with solvent diethylether to extraction the compounds semipolar and expected to have potential as antioxidants. This study aims to determine the antioxidant activity of diethyl ether fraction of ethanol extract Arumanis mango (Mangifera indica L.) with DPPH method. Extraction used ethanol 70% by maceration method, then partitioned using a liquid-liquid partition with diethylether as a solvent. Determination of antioxidant activity using DPPH method with a series of concentrations of diethyl ether fraction of ethanol extract Arumanis mango ie 12.5; 25; 50 and 100ppm. Vitamin C used as a reference solution with a concentration series of 0,625; 1.25; 2.5 and 5 ppm. The results showed that the diethyl ether fraction of ethanol extract Arumanis mango have antioxidant activity with IC50 value of 7.22 ppm and 1.18 ppm for Vitamin C. Diethylether fraction of ethanol extract Arumanis mango has weak potential as a antioxidant, if compared with Vitamin C. Keywords: Antioxidants, diethylether fractions, arumanis mango fruit, Mangifera indica, DPPH.

scholarly journals Antioxidant activity from ethanol extract of red seaweed (Galaxaura rugosa)

2021 ◽  
Vol 11 (2) ◽  
pp. 79
Author(s):  
Bhayu Gita Bhernama ◽  
Witri Maulidy Ayu ◽  
Cut Nuzlia
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Vitamin C ◽  
Ethanolic Extract ◽  
Ethanol Extract ◽  
Positive Control ◽  
Red Seaweed ◽  
Oxidation Reactions ◽  
Ic50 Value ◽  
Dpph Method

Antioxidants are compounds that can delay, reduce, slow down or inhibit oxidation reactions from free radical reactions. Antioxidants donate electrons to unstable free radicals so that these free radicals can be neutralized to not interfere with the body's metabolic processes. Red seaweed Galaxaura rugosa has potential as an antioxidant. The study aimed to determine the antioxidant activity of the ethanol extract of red seaweed Galaxaura rugosa against DPPH free radicals based on the IC50 value. Phytochemical testing and determination of antioxidant activity were carried out using the DPPH method (2,2-diphenyl-1-picrylhydrazyl), which was carried out quantitatively using a UV-Vis spectrophotometer. The results of the phytochemical screening of red seaweed ethanol extract contained alkaloids, flavonoids, saponins, steroids, and polyphenols and the IC50 value of red seaweed ethanol extract was 4.59 ppm, while the positive control for Vitamin C was 6.64 ppm. It was concluded that the ethanolic extract of red seaweed Galaxaura rugosa in the South Aceh District had high antioxidant potential, as evidenced by the small IC50 value of <50 µg/mL.Keywords: Antioxidants, Galauxara rugosa, phytochemicals, DPPH  ABSTRAKAktivitas antioksidan dari ekstrak etanol rumput laut merah Galaxaura rugosa Antioksidan merupakan senyawa yang mampu menunda, memperkecil, memperlambat atau menghambat reaksi oksidasi dari reaksi radikal bebas. Antioksidan menyumbangkan elektron kepada radikal bebas yang tidak stabil sehingga radikal bebas ini dapat dinetralkan agar tidak mengganggu jalannya proses metabolisme tubuh. Rumput laut merah Galaxaura rugosa berpotensi sebagai antioksidan. Penelitian ini bertujuan untuk menentukan aktivitas antioksidan ekstrak etanol rumput laut merah Galaxaura rugosa terhadap radikal bebas DPPH berdasarkan nilai IC50. Pada penelitian ini dilakukan pengujian fitokimia dan penentuan aktivitas antioksidan menggunakan metode DPPH (2,2-difenil-1-pikrilhidrazil) yang dilakukan secara kuantitatif menggunakan spektrofotometer UV-Vis. Hasil dari skrining fitokimia ekstrak etanol rumput laut merah mengandung senyawa alkaloid, flavonoid, saponin, steroid dan polifenol serta nilai IC50 ekstrak etanol rumput laut merah sebesar 4,59 ppm sedangkan kontrol positif Vitamin C sebesar 6,64 ppm. Ekstrak etanol rumput laut merah Galaxaura rugosa di Kabupaten Aceh Selatan memiliki potensi antioksidan yang tinggi. dibuktikan dengan nilai IC50 yang yang kecil yaitu < 50 µg/mL.Kata kunci: Antioksidan, Galauxara rugosa, Fitokimia, DPPH

scholarly journals Antioksidan Daun Kumpai Mahung (Eupathorium inulifolium H.B&K)

2021 ◽  
Vol 8 (1) ◽  
pp. 94
Author(s):  
Dwi Rizki Febrianti ◽  
Rakhmadhan Niah ◽  
Novia Ariani
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Secondary Metabolites ◽  
Traditional Medicine ◽  
Leaf Extract ◽  
Methanol Extract ◽  
Endemic Plants ◽  
Ic50 Value ◽  
Dpph Method

Daun Kumpai Mahung (Eupathorium inulifolium H.B & K) merupakan salah satu tumbuhan endemik Kalimantan Selatan. Secara turun temurun digunakan sebagai obat tradisional Dayak Meratus sebagai obat diare, demam, dan malaria. Tanaman ini dicurigai memiliki nilai antioksidan tinggi karena mengandung metabolit skunder fenolik. Tujuan penelitian ini untuk mengetahui aktivitas antioksidan ekstrak metanol daun E. inulifolium serta nilai IC50-nya. Penelitian ini menggunakan metode DPPH dengan instrumen spektofotometri UV-vis dengan panjang gelombang 517 nm. Dari hasil perhitungan dan replikasi nilai IC50 yang didapat sebesar 38,9 ppm. Ekstrak daun E. inulifolium memiliki aktivitas antioksidan yang sangat kuat dalam meredam radikal bebas. Kata Kunci: Daun, Potensi Antioksidan, Endemik, IC50, Ekstrak Etanol, Fenolik Kumpai Mahung (Eupathorium inulifolium H.B & K) leaves are one of the endemic plants of South Kalimantan. From generation to generation it is used as a traditional medicine for Dayak Meratus as a medicine for diarrhea, fever, and malaria. This plant is suspected of having high antioxidant value because it contains phenolic secondary metabolites. The purpose of this study was to determine the antioxidant activity of the methanol extract of E. inulifolium leaves and its IC50 value. This study used the DPPH method with spectophotometer UV-vis instrument at wavelength of 517 nm. From the calculation and replication, the IC50 value obtained is 38.9 ppm. E. inulifolium leaf extract has very strong antioxidant activity in reducing free radicals. 

Sign in / Sign up

Export Citation Format

Share Document