scholarly journals UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DAUN MANGGA KASTURI (Mangifera casturi Kosterm.)

2021 ◽  
Vol 3 (3) ◽  
pp. 162-173
Author(s):  
Dwi Lestari ◽  
Muthia Dwi MA ◽  
Jati Pratiwi ◽  
Lidya Handoko Saputri
Keyword(s):  
Antioxidant Activity ◽  
Secondary Metabolites ◽  
Ethanol Extract ◽  
Antioxidant Potential ◽  
Screening Tests ◽  
Phytochemical Screening ◽  
Activity Test ◽  
Ic50 Value ◽  
Dpph Method ◽  
Ethanol Extracts

Mangga Kasturi (Mangifera casturi Kosterm.) is one of the plants in Indonesia that has potential as an antioxidant. The purpose of this study was to determine the IC50 value and antioxidant potential of the ethanol extract of mangga kasturi leaves (Mangifera casturi Kosterm.). The ethanol extract of mangga kasturi leaves (Mangifera casturi Kosterm.) was extracted using maceration with 96% ethanol as solvent. The antioxidant activity test was carried out using the DPPH (1,1-Diphenyl-2-Picrylhydrazil) method using a UV-Vis spectrophotometer and vitamin C as a comparison. The results of phytochemical screening tests on ethanol extracts showed positive secondary metabolites such as alkaloids, flavonoids, tannins, and quinones. Testing the ethanol extract of Mangga Kasturi leaves (Mangifera casturi Kosterm.) with the DPPH method showed that the ethanol extract had an antioxidant activity with an IC50 value of 83.61 ppm in the strong category of antioxidant potential.

scholarly journals Phytochemicals and GC-MS of Aquilaria beccariana van Tiegh leaves growing naturally and cultivated in North Sumatera

2021 ◽  
Vol 912 (1) ◽  
pp. 012079
Author(s):  
R Batubara ◽  
W Pulungan ◽  
T I Hanum ◽  
O Affandi
Keyword(s):  
Antioxidant Activity ◽  
Secondary Metabolites ◽  
Inhibitory Concentration ◽  
Ethanol Extract ◽  
Chemical Compounds ◽  
Antioxidant Potential ◽  
Phytochemical Screening ◽  
Activity Test ◽  
Dpph Method

Abstract Aquilaria beccariana van Tiegh is one of the agarwood (gaharu) species that grows naturally and cultivatived. However, the chemical and antioxidant potential of its leaves have not been studied much. This research aimed to examine the chemical compounds and the antioxidant activity of the ethanol extract of the agarwood leaves A. beccariana van Tiegh which grows naturally and cultivatived. The leaves were processed into simplicia and then extracted using 96% ethanol as solvent. Phytochemical screening agarwood leaves to determine the chemical compounds such as of alkaloids, flavonoids, glycosides, steroids/triterpenoids, saponins and tannis. The antioxidant activity test was carried out using the DPPH method to obtain the IC50 (Inhibitory Concentration) value. The compound tracing used GC-MS. The results showed that the simplicia and the extract of the leaves both natural-grown and cultivated contained secondary metabolites of alkaloids, flavonoids, steroids/triterpenoids, and tannins positively, whereas the glycosides were only found in cultivated type. The result of the antioxidant activity test showed that the ethanol extract of the leaves of A. beccariana van Tiegh both natural-grown and cultivated was categorized as very strong. The results of the identification of chemical compounds by GC-MS were identified 18 compounds in the natural-grown leaves, while 40 compounds were identified in the cultivated ones.

scholarly journals UJI AKTIVITAS ANTIOKSIDAN DAUN BENALU KOPI (Loranthus Ferrugineus Roxb.) DENGAN METODE DPPH (1,1 – Difenil -2- Pikrilhidrazil)

2019 ◽  
Vol 6 (2) ◽  
pp. 192
Author(s):  
Muammar Yulian ◽  
Safrijal Safrijal
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Secondary Metabolites ◽  
Room Temperature ◽  
Ethanol Extract ◽  
Phytochemical Screening ◽  
Activity Test ◽  
Dpph Method ◽  
Ic50 Values ◽  
X 24

The study about antioxidant activity test of coffee parasite leaves (Loranthus ferrugineus Roxb.) by 1,1-diphenyl-2-pikrilhidrazyl (DPPH) method has been done. The aim of this study was to determine the content and activity of secondary metabolites, flavonoids and antioxidant, which found in the coffee parasite leaves. Dry powder of parasite coffee leaves (Loranthus ferrugineus Roxb.) as much as 0.5 kg were macerated by 2 L of ethanol solvent at room temperature for 4 x 24 hours, then mixed and filtered. Ethanol filtrate was evaporated at 30-40°C by using a rotary evaporator to obtain the crude extract of coffee parasite leaves. The results of the phytochemical screening showed positively that the extract was containing alkaloid, flavonoids, saponins, tannins and steroid compounds.The results of the antioxidant activity test by using DPPH method was obtained that the amount of antioxidant activity of the samples of ethanol extract had a very strong antioxidant activity against radical DPPH 0.05 mM, with IC50 values was obtained 6.063 ppm. Whereas, for comparison of ascorbic acid was about 3.127 ppm.

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

2019 ◽  
Vol 5 (2) ◽  
pp. 189-197 ◽  
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.

scholarly journals UJI AKTIVITAS ANTIOKSIDAN DAN PENENTUAN TOTAL KANDUNGAN FENOLIK EKSTRAK ETANOL DAUN NANAMUHA (Bridelia monoica Merr)

PHARMACON ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 178
Author(s):  
Julia Elsa Lakoro ◽  
Max R. J. Runtuwene ◽  
Paulina V. Y. Yamlean
Keyword(s):  
Antioxidant Activity ◽  
Extraction Method ◽  
Total Phenol ◽  
Total Phenolic ◽  
Total Phenol Content ◽  
Phenol Compounds ◽  
Activity Test ◽  
Ic50 Value ◽  
Dpph Method ◽  
Ethanol Extracts

ABSTRACTNanamuha (Bridelia monoica Merr.) is a plant that was used as a cancer and tumor drug by the Sangihe Islands community. This plant contains phenol compounds, flavonoids, alkaloids and tannins. The purpose of this study was to determine the potential of nanamuha leaves that grow in the Sangihe Island to have antioxidant activity and determine the total phenolic ethanol extracts of nanamuha leaf. The extraction method used is maceration with ethanol solvent p.a. The extracts obtained was determined total phenolic and antioxidant activity test using DPPH method. Based on the results obtained, the ethanol extracts of nanamuha leaves has antioxidant activity with an IC50 value of 75,03 µg / mL and the result showed that the total phenol content the ethanol extracts of nanamuha leaves of  53,34 mg / L.  Keywords : Nanamuha leaf, total phenol, antioxidant activity, DPPH  ABSTRAKNanamuha (Bridelia monoica Merr.) merupakan tanaman yang dimanfaatkan sebagai obat kanker dan tumor oleh masyarakat Kepulauan Sangihe. Tanaman ini memiliki kandungan senyawa fenol, flavonoid, alkaloid dan tanin. Tujuan dari penelitian ini adalah unutuk mengetahui potensi dari daun nanamuha yang tumbuh di Kepulaun Sangihe ini memiliki aktivitas antioksidan dan menentukan total fenolik dari ekstrak etanol daun nanamuha. Metode ekstraksi yang digunakan adalah maserasi dengan pelarut etanol p.a. Ekstrak yang diperoleh ditentukan total fenolik dan uji aktivitas antioksidan dengan metode DPPH. Berdasarkan hasil yang didapatkan ekstrak etanol daun nanamuha memiliki aktivitas antioksidan dengan nilai IC50 75,03 µg/mL dan hasil penelitian menunjukan total kandungan fenolik ekstrak etanol daun nanamuha sebesar 53,34 mg/L. Kata kunci : Daun Nanamuha, Total fenol, Aktivitas antioksidan, DPPH

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 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 Skrining Fitokimia dan Uji Aktivitas Antioksidan dari Daun Nasi (Phrynium capitatum) dengan Metode DPPH (1,1-difenil-2-pikrilhidrazil)

Jurnal MIPA ◽  
2014 ◽  
Vol 3 (1) ◽  
pp. 11 ◽  
Author(s):  
Dwi Putra Wijaya ◽  
Jessy E. Paendong ◽  
Jemmy Abidjulu
Keyword(s):  
Antioxidant Activity ◽  
Ethanol Extract ◽  
Phytochemical Screening ◽  
Activity Test ◽  
Ic50 Value ◽  
Ic50 Values ◽  
Dpph Solution

Telah dilakukan penelitian tentang skrining fitokimia dan uji aktivitas antioksidan dari daun nasi (Phrynium capitatum) dengan metode DPPH (1,1-difenil-2-pikrilhidrazil). Skrining fitokimia meliputi pengujian alkaloid, flavonoid, saponin, steroid, triterpenoid dan fenolik. Uji aktivitas antioksidan dilakukan dengan penambahan 2 mL larutan DPPH dengan 0,5 mL larutan ekstrak dengan konsentrasi masing-masing 1000, 750, 500 dan 250 µg/mL. Data yang diproleh kemudian digunakan untuk menghitung nilai IC50 dari ekstrak etanol daun nasi. Hasil pengujian menunjukan bahwa ekstrak etanol daun nasi mengandung senyawa alkaloid, flavonoid, saponin, steroid dan fenolik. Ekstrak etanol daun nasi memiliki aktivitas antioksidan trrtinggi pada konsentrasi 1000 µg/mL sebesar 65,77 % dan semakin menurun aktivitasnya dengan berkurangnya konsentrasi ekstrak, konsentrasi 750, 500 dan 250 µg/mL masing-masing sebesar 53,96 %, 43,8 % dan 19,58 % dengan nilai IC50 pada konsentrasi 701,78 µg/mL.A research on phytochemicals screening and antioxidant activity test of daun nasi (Phrynium capitatum) using DPPH (1,1-diphenyl-2-picrylhydrazyl) method had been conducted. Test for alkaloids, flavonoids, saponins, steroids, triterpenoids and phenolic were included in phytochemical screening. Antioxidant activity was tested through the addition of 2 mL DPPH solution into 0.5 mL of the extract having a concentration of 1000, 750, 500 and 250 µg/mL respectively. The data obtained was used to calculate the IC50 value for the ethanol extract of daun nasi. The results showed that the ethanol extract of daun nasi contains alkaloids, flavonoids, saponins, steroids and phenolic. Ethanol extract of daun nasi has the highest antioxidant activity of 65.77% at concentration of 1000 µg/mL. Its activity decreased with decreasing concentration of the extract, which were 53.96 %, 43.8 % and 19.58 % at concentration of 750, 500 and 250 µg/mL respectively. IC50 values was found at a concentration of 701.78 µg/mL.

scholarly journals Uji Aktivitas Antioksidan Ekstrak Etanol Batang Daun dan Bunga Jumpai (Glinus oppositifolius (L.) Aug. DC.)

2021 ◽  
Vol 6 (1) ◽  
pp. 14
Author(s):  
Astuti Amin ◽  
Andi Paluseri ◽  
Rahmat Priyandi Linggotu
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Antioxidant Potential ◽  
Activity Test ◽  
Ic50 Value ◽  
Dpph Method ◽  
Ic50 Values ◽  
Stem Leaf

 Jumpai (Glinus Oppoitifolius (L.) Aug. DC) contains flavonoids compounds that can act as antioxidants by donating hydrogen so as to stabilize the lack of electrons in free radicals. This study aims to determine the antioxidant potential of stem, leaf, and flower extracts by looking at the IC50 value. The stems, leaves, and flowers were extracted by maceration using 70% l ethanol solvent. The results of the antioxidant activity test using the DPPH method (2,2-diphenyl-1-picrilhydrazil) showed very strong antioxidant activity with IC50 values of 9.523 µg / ml stem, 32.89 µg / ml leaves, and 23.07 µg / ml flowers with vitamin comparisons. C obtained IC50 value of 1,698 µg / ml. Based on these results, it can be rejected that the stems, leaves, and flowers have antioxidant activity with a very strong category against DPPH free radicals (2,2-diphenyl-1-picrilhydrazil). 

scholarly journals Skirining fitokimia ekstrak etanol kulit buah sirsak (Annona muricata Linn) dan uji aktivitas antioksidan dengan metode DPPH

2021 ◽  
Vol 2 (2) ◽  
pp. 60-64
Author(s):  
Nur Alim ◽  
Nurul Jummah ◽  
Agus Sangka Pratama ◽  
Nurdiyanti Nurdiyanti
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Ethanol Extract ◽  
Skin Extract ◽  
Annona Muricata ◽  
Phytochemical Screening ◽  
Fruit Skin ◽  
Ic50 Value ◽  
Dpph Method

Phytochemical screening research on the ethanol extract of soursop (Annona muricata Linn) peel and antioxidant activity was tested using the DPPH method. The purpose of this study was to determine several classes of compounds found in soursop rind and to determine the antioxidant activity of ethanol extract of soursop rind against DPPH free radicals. The results showed ethanol extract of positive soursop fruit skin containing flavonoids, tannins, and terpenoids. of soursop fruit skin extract was carried out by DPPH method results obtained IC50 value of 192.13 µg / mL ± 5.198137 which was categorized as weak.

scholarly journals UJI AKTIVITAS ANTIOKSIDAN DAUN GULMA SIAM (Chromoleana odorata L.) DENGAN METODE 1,1-DIFENIL-2-PIKRILHIDRAZIL

2017 ◽  
Vol 1 (2) ◽  
pp. 131-142
Author(s):  
Ajmi Saputra ◽  
Abdul Gani ◽  
Erlidawati Erlidawati
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Ethanol Extract ◽  
Complete Separation ◽  
Phytochemical Screening ◽  
Inhibitor Concentration ◽  
Methanol Fraction ◽  
Activity Test ◽  
Dpph Method ◽  
Function Group

Abstrak. Telah dilakukan penelitian uji aktivitas antioksidan daun gulma siam (Chromoleana odorata L.) dengan metode 1,1-difenil-2-pikrilhidrazil (DPPH). Tujuan penelitian ini untuk mengetahui kandungan senyawa metabolit sekunder, golongan flavonoid dan aktivitas antioksidan yang terdapat dalam daun gulma siam. Sebanyak 315 g daun gulma siam kering yang sudah dihaluskan, dimaserasi dengan etanol 95% diperoleh 100 g ekstrak kental etanol. Sebanyak 70 g ekstrak kental etanol difraksinasi dengan pelarut metanol dan n-heksana menghasilkan fraksi kental metanol 30,72 g dan n-heksana 14,62 g. Hasil skrining fitokimia ekstrak etanol menunjukkan positif mengandung senyawa alkaloid, flavonoid, saponin, tanin dan steroid. Fraksi metanol positif mengandung senyawa alkaloid, flavonoid, saponin, dan tanin. Fraksi metanol dilakukan isolasi dengan metode kromatografi kolom menggunakan eluen n-heksana : etil asetat : diklorometana (1:1:1) sebagai fase gerak pertama, kemudian ditingkatkan gradien kepolarannya untuk menghasilkan pemisahan secara sempurna. Hasil isolasi diperoleh 8 fraksi (A, B, C, D, E, F, G, H) dan hasil analisis secara KLT menunjukkan fraksi A dan B positif mengandung senyawa flavonoid. Senyawa flavonoid yang terkandung dalam fraksi A diperkirakan golongan isoflavon dan fraksi B diperkirakan golongan isoflavon, flavon, flavonol dan kalkon. Analisis FTIR menunjukkan fraksi A dan B mengandung gugus fungsi N-H, O-H (asam karboksilat), C=O (aldehid dan ester), C=C, C-H, C-X (flourida), C-O dan C-N. Hasil pengujian aktivitas antioksidan menggunakan metode DPPH, diperoleh Inhibitor concentrasi (IC50) untuk ekstrak etanol 15,5067 ppm, fraksi metanol 9,5671 ppm, fraksi A 82,7808 ppm dan fraksi B 16,2336 ppm, sedangkan untuk pembanding (asam askorbat) 0,8913 ppm. Dengan demikian, dapat disimpulkan aktivitas antioksidan yang paling kuat terdapat pada  fraksi metanol.Kata kunci: daun gulma siam, Chromoleana odorata L., flavonoid, DPPH. Abstract. The antioxidant activity of siam weed leaf (Chromoleana odorata L.) has been done with 1,1-diphenyl-2-picrilhidrazil (DPPH) method. This study is intended to know the the content of secondary metabolite compounds, the group of flavonoid and antioxidant activity that found in siam weed leaf. The 315 g dry siam weed leaf that was refined, macerated with ethanol 96% produced 100 g of ethanol viscous extract. The 70 of ethanol viscous extract was fractionated with methanol and n-hexane solvent produced 30,72 g of methanol viscous fraction and 14,62 g n-hexane. The results of phytochemical screening of ethanol extract showed positive that contained compound of alkaloids, flavonoids, saponins, tannins and steroids. Methanol fraction showed positive that contained compound of alkaloids, flavonoids, saponins and tannins. The isolation in methanol fraction was made by coloumn chomatography method using eluent n-hexene : acetate ethyl : dichloromethane (1:1:1) as first mation phase. Then the polarity gradient was increased to produce complete separation. The result of isolation produced 8 fractions (A, B, C, D, E, F, G, H) and the analysis results with TLC showed fraction of A and B was positive contain flavonoids compound. Flaconoids compound that was contained in fraction A was estimated isoflvone group and fraction B was estimated group os isoflavone, flavone, flavonol and chalcone. Analysis FTIR showed that the fraction of A and B containing function group N-H, O-H (carboxylic acid), C=O (aldehyde and ester), C=C, C-H, C-X (flouride), C-O and  C-N. The result of antioxidant activity test used DPPH method, obtained inhibitor concentration (IC50) for 15,5067 ppm of ethanol extract, 9,5671 of methanol fraction, 82,7808 ppm of fraction A and 16,2336 ppm of fraction B, while for comparison (ascorbic acid) is 0,8913 ppm. This, it can be concluded that strongert antioxidant activity was found in methanol fraction.Keywords: siam weed leaf, Chromoleana odorata L., DPPH.

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