In-Vitro Study of Antioxidant Activities from Ethanol Extracts of Akar Kuning (Arcangelisia flava)

This study aims to determine the antioxidant activity of akar kuning (Arcangelisia flava) stem extract from Central Kalimantan using 1,1-diphenyl-2-picrylhydrazyl (DPPH) method. This research includes extraction of simplicia and test of antioxidant activity by DPPH method. Based on the analysis of antioxidant activity on ethanol extract from yellow root plant stem IC50 values of 136.81 ppm were obtained. This IC50 value indicates the antioxidant strength of the yellow root plant stems including in the moderate category. Further research on antioxidant activity in the fraction of akar kuning stems needs to be done to determine the composition of the antioxidant compounds in each solvent.

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UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL BULBUS BAWANG DAYAK (Eleutherine americana Merr) DENGAN METODE DPPH (1,1-Diphenyl-2-Picrylhydrazyl)

PHARMACON ◽

10.35799/pha.9.2020.30031 ◽

2020 ◽

Vol 9 (3) ◽

pp. 451

Author(s):

Rizkah V. Mokoginta ◽

Herny E. I. Simbala ◽

Karlah L.R Mansauda

Keyword(s):

Antioxidant Activity ◽

Vitamin C ◽

Ethanol Extract ◽

Antioxidant Compounds ◽

Onion Plant ◽

Dpph Method ◽

Ic50 Values ◽

Experimental Laboratory ◽

Ethanol Extracts ◽

Eleutherine Americana

ABSTRACTDayak onion plant (Eleutherine americana Merr.) or commonly called forest onion is a typical plant of Central Kalimantan that has been used by local peoples for cure a various types of diseases. This study aims to determine the activity of antioxidant compounds from Dayak bulb ethanol extracts from Kotamobagu City. This research method is an experimental laboratory. Initially the Dayak bulb sample was extracted maceration with 96% ethanol solvent then evaporated until a thick extract was obtained. As a parameter, the DPPH method (1,1-diphenyl-2-picrylhydrazyl) was used to test the antioxidant activity of the samples at concentrations of 50, 60, 70, 80 and 90 mg / L and as a comparison standard used Vitamin C with concentrations of 2, 4, 6, 8 and 10 mg / L. The results obtained showed antioxidant activity in Dayak bulb ethanol extracts with IC50 values of 41.46 mg / L and on vitamin C IC50 values of 1.04 mg / L. Based on these results it can be concluded that the onion bulb ethanol extract has very strong antioxidant activity. Keywords: Dayak Onion bulbs, Activity, Antioxidant, DPPH ABSTRAK Tanaman bawang Dayak (Eleutherine americana Merr.) atau biasa disebut bawang hutan merupakan tanaman khas Kalimantan Tengah yang sudah dipergunakan masyarakat lokal sebagai obat berbagai jenis penyakit. Penelitian ini bertujuan untuk mengetahui aktivitas senyawa antioksidan dari ekstrak etanol bulbus bawang Dayak yang berasal dari Kota Kotamobagu. Metode penelitian ini adalah eksperimental laboratorium. Awalnya sampel bulbus bawang Dayak diekstraksi maserasi dengan pelarut etanol 96% kemudian dievaporasi hingga didapatkan ekstrak kental. Sebagai parameter, digunakan metode DPPH (1,1-diphenyl-2-picrylhydrazyl) untuk pengujian aktivitas antioksidan sampel pada konsentrasi 50, 60, 70, 80 dan 90 mg/L dan sebagai standar pembanding digunakan Vitamin C dengan konsentrasi 2, 4, 6, 8 dan 10 mg/L. Hasil penelitian yang didapat menunjukkan aktivitas antioksidan pada ekstrak etanol bulbus bawang Dayak dengan nilai IC50 sebesar 41,46 mg/L dan pada vitamin C nilai IC50 sebesar 1,04 mg/L. Berdasarkan hasil tersebut dapat disimpulkan bahwa ekstrak etanol bulbus bawang Dayak memiliki aktivitas antioksidan yang sangat kuat. Kata kunci: Bulbus Bawang Dayak, Aktivitas, Antioksidan, DPPH

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Rambusa (Passiflora foetida L) vs. Free Radicals: In Vitro Study with DPPH Method

Jurnal Pharmascience ◽

10.20527/jps.v6i2.7344 ◽

2019 ◽

Vol 6 (2) ◽

pp. 1

Author(s):

Dewi Sari Mulia ◽

Evi Mulyani ◽

Muhammad Ikhwan Rizki ◽

Mohammad Rizki Fadhil Pratama

Keyword(s):

Medicinal Plant ◽

Antioxidant Activities ◽

Ethanol Extract ◽

Antioxidant Compounds ◽

Central Kalimantan ◽

Medicinal Plant Extracts ◽

Dpph Method ◽

Ic50 Values ◽

Passiflora Foetida

ABSTRAK Rambusa (Passiflora foetida L) adalah tumbuhan obat yang banyak terdapat di berbagai daerah di Indonesia, termasuk di Kalimantan Tengah. Beberapa bagian tumbuhan dari rambusa diketahui memiliki aktivitas antioksidan termasuk di bagian daunnya. Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan dari daun rambusa yang berasal dari Kalimantan Tengah. Metode yang digunakan adalah metode 2,2-diphenyl-1-picrylhydrazyl (DPPH) yang diukur serapannya dengan Spektrofotometer UV Vis. Hasil yang diperoleh menunjukkan nilai IC50 dari ekstrak etanol daun rambusa senilai 93,269 μg/mL. Meskipun nilai IC50 yang diperoleh lebih rendah dibandingkan senyawa antioksidan standar seperti kuersetin, nilai IC50 dari ekstrak etanol daun rambusa asal Kalimantan Tengah masih lebih tinggi dibandingkan daun rambusa yang diperoleh dari daerah lain Kata Kunci—antioksidan, DPPH, Kalimantan Tengah, Passiflora foetida, rambusa ABSTRACT Rambusa (Passiflora foetida L) is a medicinal plant that is widely found in various regions in Indonesia, including in Central Kalimantan. Some parts of the plant of rambusa are known to have antioxidant activities including in the leaves. This study aims to determine the antioxidant activity of rambusa leaves from Central Kalimantan. The method used was 2,2-diphenyl-1-picrylhydrazyl (DPPH) method which was measured by UV Vis spectrophotometer. The results obtained showed IC50 values of ethanol extract of rambusa leaves worth 93.269 μg/mL. Although the IC50 values obtained were lower than the standard antioxidant compounds such as quercetin, the IC50 value of the ethanol extract of the leaves of rambusa from Central Kalimantan was still higher than that of the rambusa leaves obtained from other regions or some other medicinal plant extracts. Keywords— antioxidants, DPPH, Central Kalimantan, Passiflora foetida, rambusa

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Aktivitas Antioksidan Ekstrak Etanol Kamboja Jepang (Adenium obesum) dan Kamboja Putih (Plumeria acuminata)

AL-Kauniyah Jurnal Biologi ◽

10.15408/kauniyah.v13i1.12631 ◽

2020 ◽

Vol 13 (2) ◽

pp. 167-178

Author(s):

Muh. Shofi ◽

Fera Suwitasari ◽

Nurul Istiqomah

Keyword(s):

Antioxidant Activity ◽

Cell Damage ◽

Ornamental Plants ◽

Ethanol Extract ◽

Natural Antioxidants ◽

Screening Tests ◽

Antioxidant Compounds ◽

Phytochemical Screening ◽

Ic50 Values ◽

Ethanol Extracts

AbstrakSenyawa antioksidan adalah senyawa yang dapat menangkal dampak radikal bebas dengan cara menghambat stres oksidatif serta menghentikan kerusakan sel dan induksi penyakit. Tanaman kamboja jepang (Adenium obesum) dan kamboja putih (Plumeria acuminata) termasuk tanaman hias yang memiliki khasiat obat. Tanaman ini banyak mengandung senyawa flavonoid dan senyawa antioksidan alami. Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan ekstrak etanol daun dan bunga tanaman kamboja jepang dan kamboja putih. Ekstrak kamboja diperoleh dengan melakukan maserasi daun dan bunga kamboja dengan menggunakan pelarut etanol 70% dan 96%. Ekstrak kental daun dan bunga kamboja diperoleh dengan cara pemekatan ekstrak menggunakan penangas air. Uji skrining fitokimia ekstrak kental berupa kandungan alkaloid, saponin, tanin, flavonoid, terpenoid, dan steroid secara kualitatif, sementara aktivitas antioksidan diuji dengan metode 2,2-diphenyl-1-picrylhydrazyl (DPPH). Hasil skrining fitokimia ekstrak menunjukkan adanya kandungan alkaloid, tanin, flavonoid, dan saponin dengan nilai IC50 tertinggi ditunjukan oleh ekstrak bunga kamboja putih yang diekstrak dengan etanol 70% yaitu sebesar 98,41 ppm, dan terendah oleh bunga kamboja putih yang diekstrak dengan etanol 96% yaitu 533,13 ppm. Ekstrak etanol tanaman kamboja jepang dan kamboja putih memiliki potensi sebagai antioksidan alami.Abstract Antioxidant compounds are compounds that can counteract the effects of free radicals by inhibiting oxidative stress and stopping cell damage and disease induction. Japanese frangipani plants (Adenium obesum) And white frangipani (Plumeria acuminata), including ornamental plants that have medicinal properties. This plant contains a lot of flavonoid compounds and natural antioxidant compounds. This study aims to determine the antioxidant activity of ethanol extracts of leaves and flowers of japanese frangipani plants and white frangipani. Frangipani extract is obtained by moderating frangipani leaves and flowers by using 70% and 96% ethanol solvents. Thick extracts of frangipani leaves and flowers are obtained by concentrating the extract using a water bath. Phytochemical screening tests of thick extracts containing alkaloids, saponins, tannins, flavonoids, terpenoids, and steroids qualitatively, while antioxidant activity was tested by the method 2,2-diphenyl-1-picrylhydrazyl (DPPH). Phytochemical screening results showed the presence of alkaloids, tannins, flavonoids, and saponins with the highest IC50 values shown by white frangipani extract extracted with 70% ethanol at 98.41 ppm, and the lowest by white frangipani extracted with 96% ethanol at 533.13 ppm. Ethanol extract of japanese frangipani and white frangipani plants have potential as natural antioxidants.

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UJI AKTIVITAS ANTIOKSIDAN DAN ANTIKANKER EKSTRAK BATANG MURBEI (MORUS ALBA L.) TERHADAP SEL KANKER WIDR SECARA IN VITRO

Kartika Jurnal Ilmiah Farmasi ◽

10.26874/kjif.v7i1.173 ◽

2019 ◽

Vol 7 (1) ◽

pp. 17

Author(s):

Asril Burhan ◽

Andi Nur Aisyah ◽

Akbar Awaluddin ◽

Zulham Zulham ◽

Burhanuddin Taebe ◽

...

Keyword(s):

Antioxidant Activity ◽

Anticancer Activity ◽

Cancer Cells ◽

Ethanol Extract ◽

Vero Cells ◽

Morus Alba ◽

Total Phenolic ◽

Ic50 Values ◽

Stem Extract

<div class="WordSection1">Abstrak Murbei merupakan salah satu obat yang penting didalam pengobatan tradisional Cina. Murbei mengandung berbagai macam senyawa diantaranya fenol dan flavanoid yang umunya berfungsi sebagai antioksidan alami dan juga memiliki fungsi antikanker. Penelitian ini bertujuan untuk mengetahui kadar fenolik, aktivitas antioksidan dan antikanker ekstrak batang murbei (Morus alba L.). Pembuatan ekstrak dilakukan dengan cara maserasi menggunakan pelarut etanol. Penetapan kadar fenolik menggunakan reagen Folin-Ciocalteu, pengujian aktivitas antioksidan menggunakan metode ABTS dan pengujian aktivitas antikanker menggunakan metode MTT terhadap sel kanker WIDR dan sel vero. Hasil pengujian menunjukkan kadar total fenolik ekstrak batang murbei sebesar 35,9%. Nilai aktivitas antioksidan ekstrak batang murbei adalah 83,18 µg/mL. Aktivitas antikanker pada sel WIDR menunjukkan nilai IC50 71,24 µg/ml dan pada sel vero memiliki nilai IC50 154,241 µg/ml. Dapat disimpulkan bahwa ekstrak etanol batang murbei (Morus alba L.) memilki aktivitas antioksidan yang kuat dan berpotensi sebagai antikanker alami yang bekerja selektif terhadap sel kanker. Kata kunci : Murbei (Morus alba L.), batang, IC50, antioksidan, antikanker Antioxydant and anticancer effect of murberry (Morus alba L.) stem extract in vitro Abstract Mulberry is one of the important medicines in traditional Chinese medicine. Mulberry contains a variety of compounds including phenols and flavonoids which generally function as natural antioxidants and also have anticancer functions. This study aims to determine phenolic levels, antioxidant activity and anticancer of mulberry stem extract (Morus alba L.). Extracts were made by maceration using ethanol as a solvent. Determination of phenolic levels using the Folin-Ciocalteu reagent, testing of antioxidant activity using the ABTS method and testing of anticancer activity using the MTT method against WIDR cancer cells and vero cells. The test results showed total phenolic levels of mulberry stem extract amounted to 35.9%. The antioxidant activity value of mulberry stem extract was 83.18 µg / mL. Anticancer activity in WIDR cells showed IC50 values 71.24 µg / ml and vero cells had IC50 values 154.224 µg / ml. It can be concluded that the ethanol extract of mulberry stem (Morus alba L.) has a strong antioxidant activity and has the potential as a natural anticancer that works selectively against cancer cells. Keywords: Mulberry (Morus alba L.), stem extract, IC50, antioxidant, anticancer</div>

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FORMULASI DAN UJI AKTIVITAS ANTIOKSIDAN KRIM EKSTRAK ETANOL DAUN MURBEI (Morus alba L.) MENGGUNAKAN METODE DPPH (1,1-Diphenyl-2-Picrylhydrazyl)

PHARMACON ◽

10.35799/pha.9.2020.30018 ◽

2020 ◽

Vol 9 (3) ◽

pp. 349

Author(s):

Eklesia Pogaga ◽

Paulina V. Y. Yamlean ◽

Julianri S. Lebang

Keyword(s):

Antioxidant Activity ◽

Free Radical ◽

Vitamin C ◽

Traditional Medicine ◽

Antioxidant Activities ◽

Ethanol Extract ◽

Mulberry Leaves ◽

Ic50 Value ◽

Ic50 Values ◽

Ethanol Extracts

ABSTRACTMulberry is one of the plants growing in Indonesian and widely used as traditional medicine. The active compounds found in Mulberry leaves are known have an antioxidant activity. The aim of this study is to formulate cream preparations from ethanol extracts of Mulberry leaves and to determine its antioxidant activities. Mulberry leaves was macerated using ethanol 96%. Antioxidant activity of mulberry leaves cream then evaluated against DPPH as free radical and measured at 517 nm wavelength using a UV-Vis spectrophotometer. The results showed that the cream of ethanol extract from Mulberry leaves had a very strong antioxidant activity with IC50 values in a row that is 1.7831 ppm, 0.8215 ppm and 0.7668 ppm. This can be compared with a Vitamin C solution, which has a very strong antioxidant activity with IC50 value was 1.1113 ppm. This study concludes that the cream from Mulberry leaves ethanol extract has a very strong antioxidant activity.Keywords: Mulberry leaves, Cream, Antioxidant, DPPHABSTRAK Murbei merupakan salah satu tanaman yang tumbuh di Indonesia dan banyak digunakan dalam pengobatan secara tradisional. Kandungan senyawa aktif yang terdapat pada daun Murbei dikenal mempunyai peranan sebagai antioksidan. Tujuan dari penelitian ini ialah untuk membuat sediaan krim dari ekstrak etanol daun Murbei dan untuk menguji apakah adanya aktivitas antioksidan. Daun murbei diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Sediaan krim diuji terhadap DPPH sebagai radikal bebas dan diukur pada panjang gelombang 517 nm dengan menggunakan spektrofotometer UV-Vis. Hasil penelitian menunjukkan bahwa krim ekstrak etanol daun Murbei memiliki aktivitas antioksidan yang sangat kuat dengan nilai IC50 berturut-turut yaitu 1,7831 ppm, 0,8215 ppm dan 0,7668 ppm. Hal ini dapat dibandingkan dengan larutan Vitamin C yang mempunyai aktivitas antioksidan yang sangat kuat, yaitu 1.1113 ppm. Berdasarkan hasil penelitian dapat disimpulkan bahwa krim dari ekstrak etanol daun Murbei memiliki aktivitas antioksidan yang sangat kuat.Kata Kunci: Daun Murbei, Krim, Antioksidan, DPPH

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FRACTIONATION OF THE N-HEXANE EXTRACT OF GARCINIA BANCANA MIQ. (MANGGIS HUTAN) LEAVES AND ITS ANTIOXIDANT ACTIVITY BASED ON 1,1-DIPHENYL-2- PICRYLHYDRAZYL AND FERRIC REDUCING ANTIOXIDANT POWER ASSAYS

International Journal of Applied Pharmaceutics ◽

10.22159/ijap.2018.v10s1.90 ◽

2018 ◽

Vol 10 (1) ◽

pp. 407

Author(s):

Dewi Kumala Putri ◽

Berna Elya ◽

Nuraini Puspitasari

Keyword(s):

Antioxidant Activity ◽

Antioxidant Activities ◽

Hexane Extract ◽

Phytochemical Screening ◽

Active Fraction ◽

Leaf Extracts ◽

Antioxidant Power ◽

Dpph Method ◽

Ferric Reducing Antioxidant Power

Objective: To assess the antioxidant activity from another part of the plant, in this study, leaf extracts in n-hexane were fractionated.Methods: Ten fractions were obtained and tested in vitro for antioxidant activity using two methods, 1,1-diphenyl-2-picrylhydrazyl (DPPH) and ferricreducing antioxidant power (FRAP), to identify the most active fraction.Results: The IC50 of the most active fraction was 36.24 μg/mL using the DPPH method, and the EC50 was 39.54 μg/mL using the FRAP method. Themost active fraction was also shown to contain terpenoids.Conclusion: The most active fraction of an n-hexane extract of the leaves of Gacinia bancana Miq., which was tested by both DPPH and FRAP methodshad antioxidant activities with IC50 and EC50 values of 36.2482 μg/mL and 39.5442 μg/mL, respectively. Phytochemical screening showed that activefraction contains terpenoids.

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The Bioactivity Prediction of Peptides from Tuna Skin Collagen Using Integrated Method Combining In Vitro and In Silico

Foods ◽

10.3390/foods10112739 ◽

2021 ◽

Vol 10 (11) ◽

pp. 2739

Author(s):

Liza Devita ◽

Hanifah Nuryani Lioe ◽

Mala Nurilmala ◽

Maggy T. Suhartono

Keyword(s):

Antioxidant Activity ◽

In Silico ◽

Antioxidant Activities ◽

In Silico Analysis ◽

Weight Fraction ◽

Amino Acid Sequences ◽

Skin Collagen ◽

Dpph Method ◽

Peptide Fractions

The hydrolysates and peptide fractions of bigeye tuna (Thunnus obesus) skin collagen have been successfully studied. The hydrolysates (HPA, HPN, HPS, HBA, HBN, HBS) were the result of the hydrolysis of collagen using alcalase, neutrase, and savinase. The peptide fractions (PPA, PPN, PPS, PBA, PBN, PBS) were the fractions obtained following ultrafiltration of the hydrolysates. The antioxidant activities of the hydrolysates and peptide fractions were studied using the DPPH method. The effects of collagen types, enzymes, and molecular sizes on the antioxidant activities were analyzed using profile plots analysis. The amino acid sequences of the peptides in the fraction with the highest antioxidant activity were analyzed using LC-MS/MS. Finally, their bioactivity and characteristics were studied using in silico analysis. The hydrolysates and peptide fractions provided antioxidant activity (6.17–135.40 µmol AAE/g protein). The lower molecular weight fraction had higher antioxidant activity. Collagen from pepsin treatment produced higher activity than that of bromelain treatment. The fraction from collagen hydrolysates by savinase treatment had the highest activity compared to neutrase and alcalase treatments. The peptides in the PBN and PPS fractions of <3 kDa had antidiabetic, antihypertensive and antioxidant activities. In conclusion, they have the potential to be used in food and health applications.

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Aktivitas Antioksidan Ekstrak Etanol Buah, Daun, Batang Dan Rimpang Pada Tanaman Wualae (Etlingera Elatior (Jack) R.M Smith)

Jurnal Farmasi Galenika (Galenika Journal of Pharmacy) ◽

10.22487/j24428744.2019.v5.i2.13671 ◽

2019 ◽

Vol 5 (2) ◽

pp. 189-197 ◽

Cited By ~ 1

Author(s):

Asriullah Jabbar ◽

Wahyuni Wahyuni ◽

Muh Hajrul Malaka ◽

Apriliani Apriliani

Keyword(s):

Antioxidant Activity ◽

Vitamin C ◽

Typhoid Fever ◽

Skin Diseases ◽

Activity Test ◽

Ic50 Value ◽

Dpph Method ◽

Ic50 Values ◽

Ethanol Extracts ◽

Etlingera Elatior

Wualae (Etlingera elatior (Jack) R.M Smith) is one of the plants in the Zingiberaceae family, widely used in medicine ranging from rhizomes, fruits, and flowers. Empirically Wualae are usually used by people for treating skin diseases, flavoring food, a natural soap, and in Southeast Sulawesi, it is used to treat typhoid fever. This study aims to examine the antioxidant activity of Wualae (Etlingera elatior) plant. The plant extracts were extracted by maceration method, antioxidant activity test was performed by 2,2-Diphenyl-1-picrylhydrazyl (DPPH) method. The results showed that ethanol extracts of fruits, leaves, stems and rhizomes of Wualae (Etlingera elatior) has the potential antioxidant activity with the IC50 values of 72.518 mg/L, 99.890 mg/L, 52.345 mg/L and 58.638 mg/L, respectively. and Vitamin C has IC50 value of 3,787 mg/L.

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UJI AKTIVITAS ANTIOKSIDAN SPONS Stylissa sp. DENGAN MENGGUNAKAN METODE DPPH (1,1-difenil-2-pikrilhidrazil)

PHARMACON ◽

10.35799/pha.9.2020.30027 ◽

2020 ◽

Vol 9 (3) ◽

pp. 419

Author(s):

Samuel I.M. Sibarani ◽

Adithya Yudistira ◽

Deby A. Mpila

Keyword(s):

Antioxidant Activity ◽

Cell Wall ◽

Free Radicals ◽

Ethanol Extract ◽

Dna Bases ◽

Oxidation Reactions ◽

Terrestrial Plants ◽

Dpph Method ◽

High Antioxidant Activity ◽

Ethanol Extracts

ABSTRACTHabitat of sponge Stylissa sp., were under the sea and these sponges contain active compounds, which are more active than the compounds produced by terrestrial plants. Antioxidants are inhibitors of oxidation reactions due to the free radicals, which can cause weak damage to unsaturated cells, cell wall membranes, blood vessels, DNA bases, and lipid tissue, that causing disease. The study was conducted to determine the antioxidant activity of ethanol extracts of sponge Stylissa sp., which is located on the Bangka Island, Likupang District, North Minahasa Regency. Sponge Stylissa sp., was extracted by maceration with using ethanol. Testing of antioxidant activity was carried out by the DPPH method measured by a UV-Vis spectrophotometer. The results of the study showed that ethanol extracts of sponge Stylissa sp., has antioxidant activity in each concentration and the highest at a concentration of 100 mg / L. The conclusion is a ethanol extract of sponge Stylissa sp. have high antioxidant activity with a concentration of 25 mg/L (77,40%), concentration of 50 mg/L (85,63%), concentration of 75 mg/L (88,66%), and concentration 100 mg/L (88,96%). Key words: Stylissa sp. Sponge, Antioxidant, DPPH (1,1-diphenyl-2-picrylhydrazyl) ABSTRAKHabitat dari spons Stylissa sp. terdapat di bawah laut dan spons ini mengandung senyawa aktif yang persentase keaktifannya lebih besar dibandingkan dengan senyawa-senyawa yang dihasilkan oleh tumbuhan darat. Antioksidan adalah zat penghambat reaksi oksidasi akibat radikal bebas yang dapat menyebabkan kerusakan lemah tak jenuh, membran dinding sel, pembuluh darah, basa DNA, dan jaringan lipid sehingga menimbulkan penyakit. Penelitian dilakukan untuk mengetahui aktivitas antioksidan ekstrak etanol biota laut spons Stylissa sp. yang terdapat di pulau Bangka, Kecamatan Likupang, Kabupaten Minahasa Utara. Spons Stylissa sp. ini diekstrak dengan metode maserasi menggunakan etanol. Pengujian aktivitas antioksidan ini dilakukan dengan metode DPPH yang diukur dengan alat spektrofotometer UV-Vis. Hasil dari penelitian menunjukan bahwa ekstrak etanol spons Stylissa sp. memiliki aktivitas antioksidan disetiap konsentrasi dan yang tertinggi pada konsentrasi 100 mg/L. Kesimpulan yang didapat bahwa ekstrak etanol spons Stylissa sp. memiliki aktivitas antioksidan yang tinggi dengan konsentrasi 25 mg/L (77,40%), konsentrasi 50 mg/L (85,63%), konsentrasi 75 mg/L (88,66%), dan konsentrasi 100 mg/L (88,96%). Kata Kunci : Spons Stylissa sp., Antioksidan, DPPH (1,1-difenil-2-pikrilhidrazil)

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UJI AKTIVITAS ANTIOKSIDAN DARI EKSTRAK ETANOL SPONS Ianthella basta DARI DESA TUMBAK KECAMATAN PUSOMAEN KABUPATEN MINAHASA TENGGARA

PHARMACON ◽

10.35799/pha.10.2021.32759 ◽

2021 ◽

Vol 10 (1) ◽

pp. 713

Author(s):

Nurhati Anton ◽

Adithya Yudistira ◽

Jainer Pasca Siampa

Keyword(s):

Antioxidant Activity ◽

Coral Reef ◽

Vitamin C ◽

Bioactive Compounds ◽

Ethanol Extract ◽

Positive Control ◽

Terrestrial Plants ◽

Dpph Method ◽

Ethanol Extracts

ABSTRACT Sponges are a component of coral reef biota that has bioactive compounds with a greater percentage of activity compared to compounds produced by terrestrial plants. This study aims to determine the presence of antioxidant activity in the ethanol extracts of sponge Ianthella basta from the waters of Tumbak Village. Ianthella basta sponge was extracted using maceration method with 96% ethanol solvent. Antioxidant activity testing was carried out using the DPPH method with a concentration of 100 µg / mL, 75 μg / mL, 50 μg / mL, and 25 μg / mL and Vitamin C p.a as positive control. Each sample was made three repetitions of the test. Testing using a UV-Vis spectrophotometer. The results showed that the ethanol extract of the Ianthella basta sponge had antioxidant activity with a percentage of 48.73% at a concentration of 100 µg / mL. Keywords: Ianthella basta sponge, Antioxidants, Extraction, DPPH ABSTRAK Spons merupakan salah satu komponen biota penyusun terumbu karang yang mempunyai senyawa bioaktif dengan persentase keaktifan lebih besar dibandingkan dengan senyawa-senyawa yang dihasilkan oleh tumbuhan darat. Penelitian ini bertujuan untuk mengetahui adanya aktivitas antioksidan di dalam ekstrak etanol Spons Ianthella basta dari perairan Desa Tumbak. Spons Ianthella basta diekstraksi menggunakan metode maserasi dengan pelarut etanol 96%. Pengujian aktivitas antioksidan dilakukan dengan menggunakan metode DPPH dengan konsentrasi 100 µg/mL, 75 µg/mL, 50 µg/mL, dan 25 µg/mL dan Vitamin C p.a sebagai kontrol positif. Masing-masing sampel dibuat tiga kali pengulangan uji. Pengujian menggunakan alat spektrofotometer UV-Vis. Hasil penelitian menunjukkan bahwa ektrak etanol Spons Ianthella basta memiliki aktivitas antioksidan dengan persentase sebesar 48,73% pada konsentrasi 100 µg/mL. Kata Kunci: Spons Ianthella basta, Antioksidan, Ekstraksi, DPPH

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