scholarly journals UJI AKTIVITAS ANTIOKSIDAN EKSTRAK BAWANG HITAM (BLACK GARLIC) DENGAN VARIASI LAMA PEMANASAN

2020 ◽  
Vol 13 (1) ◽  
pp. 39-50
Author(s):  
Eva Agustina ◽  
Funsu Andiarna ◽  
Irul Hidayati
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Heating Time ◽  
The Body ◽  
Garlic Extract ◽  
Active Compounds ◽  
Rotary Evaporator ◽  
Ic50 Value ◽  
Ic50 Values ◽  
The Difference

AbstrakSenyawa radikal dalam tubuh sangat reaktif terhadap sel-sel, sehingga dapat menyebabkan berbagai penyakit. Senyawa yang mampu menangkal radikal bebas disebut antioksidan. Bawang hitam diketahui mengandung senyawa aktif fenolik dan turunannya sehingga dapat digunakan sebagai antioksidan. Penelitian tentang penggunaan bawang hitam sebagai antioksidan ini bertujuan untuk mengetahui perbedaan waktu pemanasan (15, 25, dan 35 hari) terhadap aktivitas antioksidan pada ekstrak bawang hitam. Bawang hitam diperoleh dengan cara memanaskan bawang putih selama 15, 25, dan 35 hari. Bawang hitam selanjutnya diekstraksi dengan pelarut metanol dengan metode maserasi. Filtrat hasil ekstraksi dipekatkan dengan rotary evaporator untuk mendapatkan ekstrak bawang hitam. Ekstrak bawang hitam diuji fitokimia untuk mengetahui kandungan senyawa aktif. Aktivitas antioksidan ekstrak bawang hitam ditentukan dengan metode penangkalan radikal 2,2-diphenyl-1-picrylhydrazyl (DPPH). Hasilnya menunjukkan ekstrak bawang hitam memiliki aktivitas antioksidan yang sangat kuat dengan nilai IC50 masing-masing 15 hari yaitu 2,41 µg/mL; 25 hari yaitu 2,93 µg/mL; 35 hari yaitu 2,27 µg/mL. Nilai IC50 <10 μg/mL menunjukkan bahwa ekstrak bawang hitam dengan waktu pemanasan 15, 25, dan 35 hari memiliki potensi antioksidan yang sangat kuat. Waktu pemanasan yang paling optimum dalam penangkalan radikal bebas adalah ekstrak bawang hitam dalam waktu pemanasan 35 hari, karena banyak terdapat kandungan senyawa flavonoid, tanin, sterol, dan saponin.Abstract Radical compounds in the body are very reactive to cells that can cause various diseases. Compounds that are able to ward off free radicals are called antioxidants. Black garlic are known to contain phenolic active compounds and their derivatives so that they can be used as antioxidants. Research on the use of black garlic as an antioxidant aims to determine the difference in heating time (15, 25, and 35 days) on the antioxidant activity of black garlic extract. Black garlic are obtained by heating the garlic for 15, 25, and 35 days. The black garlic is then extracted with methanol solvent by maceration method. The extracted filtrate was concentrated with a rotary evaporator to obtain the black garlic extract. Black garlic extract was tested for phytochemistry to determine the content of active compounds. The antioxidant activity of black garlic extract was determined by the radical deterrence method 2,2-diphenyl-1-picrylhydrazyl (DPPH). The results showed that the onion extract had a very strong antioxidant activity with an IC50 value of 15 days each of 2.41 µg/mL; 25 days which is 2.93 μg/mL; 35 days which is 2.27 µg/mL. IC50 values <10 μg/mL indicate that the black garlic extract with a heating time of 15, 25, and 35 days has a very strong antioxidant potential. The most optimum heating time in deterring free radicals is black garlic extract within 35 days of heating because there are many compounds containing flavonoids, tannins, sterols, and saponins.

scholarly journals Aktivitas Antioksidan Ekstrak Metanol Daun Alpukat Menggunakan Metode DPPH

2021 ◽  
Vol 11 (2) ◽  
pp. 104-110
Author(s):  
Alfin Surya ◽  
Zaiyar Nazir ◽  
Anggun Syazulfa
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Free Radicals ◽  
Methanol Extract ◽  
Natural Antioxidants ◽  
Positive Control ◽  
Phytochemical Screening ◽  
Bioactive Components ◽  
Ic50 Value ◽  
Ic50 Values

Free radicals are molecules that lose electrons in their outer orbitals so that the number of electrons becomes odd and unstable. Free radicals can damage various macromolecule cells including proteins, carbohydrates, fats. Antioxidants are compounds that can donate one or more electrons to free radicals. Avocado leaves contain high bioactive components that can be used as a source of natural antioxidants. Avocado leaves that have been dried, mashed and then shifted with methanol. The extracts were tested by phytochemical screening, including flavonpoid, phenolic, tannin and antioxidant activity using the DPPH (2,2-diphenyl-1-picrylhidrazyl) method. This method is based on the reduction of 2,2-diphenyl-1-picrylhydrazyl (DPPH) against free radicals which causes a change from purple to yellow 2,2-diphenyl-1-picrylhydrazyl) (DPPH). From the research, the IC50 values ​​in avocado leaves were 118.8056 µg / mL and 7,276 µg / mL on ascorbic acid as a positive control. From the IC50 value obtained, it is known that the methanol extract of avocado leaves has strong antioxidant activity to fight free radicals.

scholarly journals A Review: Testing Antioxidant Activity on Kawista Plants (Limonia acidissima L.) in Indonesia

2021 ◽  
Vol 9 (F) ◽  
pp. 281-287
Author(s):  
Syamsuri Syakri ◽  
Nur Azizah Syahrana ◽  
Asrul Ismail ◽  
Karlina Amir Tahir ◽  
Anshari Masri
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Oxidation Process ◽  
The Body ◽  
Test Method ◽  
Exclusion Criteria ◽  
Average Value ◽  
Literature Searches ◽  
Ic50 Value ◽  
Limonia Acidissima

BACKGROUND: Antioxidants are natural ingredients that can block the oxidation process of free radicals that enter the body so that damage to body cells can be prevented. Kawista plants are one of the plants that have antioxidant activity. AIM: This article review aims to determine the compounds that have antioxidant activity found in Kawista plants, the method used in testing antioxidants on Kawista plants, and the IC50 value found in antioxidant testing on Kawista plants. METHODS: The method used in this study is the Population, Intervention, Control, and Outcome method through inclusion and exclusion criteria using the keywords “Antioxidant activity of Limonia acidissima,” “Antioxidant activity of Feronia limonia,” “Antioxidant activity of Kawista,” “Testing Antioxidants in L. acidissima,” and “L. acidissima” with databases used for literature searches. RESULTS: This review shows that Kawista plants have antioxidant activity of various compounds based on the test method used. CONCLUSION: Compounds in Kawista plants that have antioxidant activity are phenols, especially phenolic acids, flavonoids, flavonols, triterpenoids, saponins, tannins, terpenes, steroids, alkaloids, and glycosides. Kawista plant activity tested had IC50 with an average value of very strong (16.45 g/mL), strong (77.85 g/mL), moderate (135.02 g/mL), weak (196.67 g/mL), and very weak (751.89 g/mL).

scholarly journals Antioxidant and Anti-Hyaluronidase Activities of Dragon Fruit Peel Extract and Kaempferol-3-O-Rutinoside

2019 ◽  
Vol 30 (4) ◽  
pp. 247
Author(s):  
Liana Liana ◽  
Rizal Rizal ◽  
Wahyu Widowati ◽  
Fioni Fioni ◽  
Khainir Akbar ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Human Life ◽  
Fruit Peel ◽  
Paired Samples ◽  
Dragon Fruit ◽  
Ic50 Value ◽  
Significant Difference ◽  
Ic50 Values ◽  
Peel Extract

Aging is a natural process in human life and is triggered by the presence of free radicals (ROS). The use of antioxidants from natural ingredients is one of the breakthroughs to overcome aging and counteract the harmful effects caused by the free radicals. This study aimed to determine and compare the antioxidant activity of H2O2 scavenging and hyaluronidase inhibition of red dragon fruit peel extract (DFPE) and kaempferol-3-o-rutinoside (KOR) compounds. Dragon fruit peel extract (DFPE) is obtained through extraction by maceration method using 70% ethanol solvent. The design of this study included antioxidant and anti-aging activity assay of EKBN and KOR at the series concentration of 15.63; 31.25; 62.50; 125; 250; 500 µg/mL through H2O2 scavenging, as well as the DFPE and KOR hyaluronidase inhibition assay at the series concentration of 5.21; 10.42; 20.83; 41.7; 83.33; 166.67 µg/mL. EKBN shows that the average activity of H2O2 scavenging is lower than KOR. In addition, the IC50 values of KOR for H2O2 scavenging is lower (351.46±2.30ug/mL) than DFPE (409.64±23.17ug/mL). While, KOR also has higher values of inhibitory activity than of the DFPE. However, the IC50 value of KOR for hyaluronidase inhibition activity was 84.07±10.46µg/mL, equivalent to the IC50 value of DFPE (85.32±10.24µg/mL). The presence of antioxidant and anti-aging activity in the EKBN is probably caused by betalain and the KOR compound itself contained in red dragon fruit. The results of the paired-samples T-test on antioxidant activity and anti-aging of DFPE and KOR showed non-significant difference. Thus, DFPE has an equivalent antioxidant and anti-aging through H2O2 scavenging and hyaluronidase activity as possessed by the KOR compound.

scholarly journals ANALISIS SENSORI DAN AKTIVITAS ANTIOKSIDAN MENGGUNAKAN METODE DPPH PADA CAMPURAN BAWANG PUTIH, JAHE, LEMON DAN MADU SEBAGAI SUPLEMEN HERBAL

Pro Food ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 600
Author(s):  
Suci Rahmi ◽  
Hasanuddin Husin
Keyword(s):  
Antioxidant Activity ◽  
Sensory Analysis ◽  
The Body ◽  
Herbal Supplement ◽  
Herbal Supplements ◽  
Treatment Techniques ◽  
Ic50 Value ◽  
Dpph Method ◽  
Ic50 Values ◽  
Herbal Plant

ABSTRACT Herbal supplements are one of the products that are taken from outside the body derived from a mixture of herbal plant ingredients have antioxidant activity to prevent the presence of free radicals in the body. Testing natural antioxidant activity in herbal supplement products using the DPPH method (1,1-diphenyl-2-picrylhyrazil). Measurement of UV-Visible spectrophotometry absorbance with DPPH absorbance value at a wavelength of 517 nm. Sensory analysis using a hedonic test at the panelist preference level, using four attribute parameters namely taste, aroma, color and overall acceptance. Results Tests of antioxidant activity in herbal supplement products on various combination techniques and concentrations of garlic, ginger, local lemons and honey, resulting in the reduction of DPPH which is characterized by a reduction in the intensity of the color from purple to fade to yellow. Antioxidant testing obtained IC50 values ​​from all herbal supplement samples from various treatment techniques and concentrations showed IC50 values ​​less than 50 found in the treatment of chopped engineering materials, concentration 1 (K1) of 23.97%. While concentrations of 2 (k2) and 3 (k3) as well as in various combination techniques and other concentrations indicate that IC50 values ​​range from 50 ppm to 100 ppm. This shows that herbal supplements have very strong antioxidants (IC50 value <50) found in the treatment of ingredients with chopped techniques with the lowest concentration. whereas herbal supplements with treatment techniques and other concentrations have a strong antioxidant value of IC50 (50-100). The results of sensory analysis indicate that the average panelist had a preference level for herbal supplement products with chopping and extraction treatment techniques. Keywords: Antioxidant, DPPH, Herbal supplements, IC50   ABSTRAK   Suplemen herbal merupakan salah satu produk yang menjadi asupan dari luar tubuh yang berasal dari hasil campuran bahan tanaman herbal yang mempunyai aktivitas antioksidan tinggi untuk mencegah adanya radikal bebas dalam tubuh. Pengujian aktivitas antioksidan alami pada produk suplemen herbal menggunakan metode DPPH (1,1-diphenyl-2-picrylhyrazil). Pengukuran absorbansi secara spektrofotometri-UV Visibel dengan Nilai absorbansi DPPH pada panjang gelombang 517 nm. Analisis sensori dengan menggunakan uji hedonik pada tingkat kesukaan panelis, menggunakan empat parameter atribut yaitu rasa, aroma, warna dan penerimaan keseluruhan. Hasil Pengujian aktivitas antioksidan dalam produk suplemen herbal pada berbagai teknik kombinasi dan konsentrasi bawang putih, jahe, lemon lokal dan madu, menghasilkan peredaman DPPH yang ditandai dengan berkurangnya intensitas warna ungu menjadi pudar sampai kekuningan. Pengujian Antioksidan didapatkan Nilai IC50 dari seluruh sampel suplemen herbal dari berbagai teknik perlakuan dan konsentrasi menunjukkan nilai IC50 kurang dari 50 terdapat pada perlakuan bahan teknik rajangan, konsentrasi 1 (K1) sebesar 23,97 %. Sementara konsentrasi 2 (k2) dan 3 (k3) serta pada berbagai teknik kombinasi dan konsentrasi lainnya menunjukan bahwa nilai IC50  berkisar 50 ppm - 100 ppm. Hal ini menunjukkan bahwa suplemen herbal memiliki antioksidan yang sangat kuat (nilai IC50 <50) terdapat pada perlakuan bahan dengan teknik rajangan dengan konsentrasi yang paling rendah, sedangkan suplemen herbal dengan teknik perlakuan dan konsentrasi lain memiliki nilai antioksidan kuat IC50 (50-100) ppm. Hasil analisis sensori menunjukan bahwa rata-rata panelis memiliki tingkat kesukaan pada produk suplemen herbal dengan teknik perlakuan rajangan dan perlakuan sari. Kata kunci: Antioksidan, DPPH, IC50, Sensori, Suplemen Herbal.

scholarly journals SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOLIK BUAH BUNI (Antidesma bunius (L.) SPRENG)

2016 ◽  
Vol 3 (2) ◽  
pp. 159-163
Author(s):  
Arif Rahman ◽  
Abd Malik ◽  
Aktsar Roskiana Ahmad
Keyword(s):  
Nitric Oxide ◽  
Antioxidant Activity ◽  
Free Radicals ◽  
Free Radical ◽  
Free Radical Scavengers ◽  
Bioactive Components ◽  
Ic50 Value ◽  
Ic50 Values ◽  
Dried Fruit ◽  
Ethanol Extracts

Free radicals play a role in the occurrence of various degenerative diseases that require free-radical scavengers or antioxidants. Buni fruit (Antidesma bunius (L.) Spreng) has the bioactive components are Anthocyanins (flavonoids) that serves to the free radicals. This study aimed to measure the antioxidant activity of theethanol extract contained 70% fruit Buni obtained by using the method of nitric oxide. Simplicia buni macerated dried fruit with 70% ethanol. Extracts were obtained in the test antioxidant activity against nitric oxide radicals. The antioxidant activity against free radical absorbance measured by means of UV-Vis spectrophotometry at a wavelength of 546 nm and calcul ated IC50 values. The results shows that the fruit buni has potential as a free radical with IC50 value of 2.28 µg/mL and a comparison of quercetin with IC50 value of 5.88 µg/mL.

scholarly journals Potensi Antioksidan Alami pada Ekstrak Kulit Buah Jamblang (Syzigium cumini (L.) Skeels) Menggunakan Metode DPPH (The Potency of Natural Antioxidant in The Rind Extract of Jamblang (Syzigium cumini (L.) Skeels) using DPPH Method)

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Ayu Nirmala Sari ◽  
Kusdianti Kusdianti ◽  
Diky Setya Diningrat
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Free Radicals ◽  
The Body ◽  
Natural Antioxidant ◽  
Negative Effects ◽  
Ic50 Value ◽  
Dpph Method ◽  
Antioxidant Potency

AbstrakStress oksidatif pada tubuh dapat memicu berbagai penyakit. Stress oksidatif ini disebabkan karena radikal bebas berlebih. Tubuh memerlukan antioksidan untuk mengurangi pengaruh radikal bebas dan meredam dampak negatifnya. Penelitian ini bertujuan untuk mengevaluasi daya antioksidan ekstrak kulit buah jamblang (Syzigium cumini (L.) Skeels) dengan menggunakan metode DPPH. Berdasarkan hasil pengujian daya antioksidan ekstrak kulit buah jamblang diketahui bahwa ekstrak kulit buah jamblang memiliki kandungan antioksidan yang tergolong aktivitas sedang dengan nilai IC50 sebesar 169.3. Hasil penelitian ini menunjukkan bahwa kulit buah jamblang berpotensi untuk dikembangkan sebagai sumber antioksidan alami bagi manusia.Kata Kunci : antioksidan, DPPH, ekstraksi, jamblang, radikal bebas, stress oksidatif AbstractOxidative stress can induce many diseases. Oxidative stress is caused by excessive free radicals in the body. The body required antioxidant to decrease and hush the negative effects of free radicals. The aim of this study was to evaluate the antioxidant potency of extract rind of jamblang (Syzigium cumini (L.) Skeels) using DPPH method. The result showed that the jamblang rind extract had moderate antioxidant activity and the IC50 value was 169.3.  Based on this result, jamblang rind was potential to be natural antioxidant for human.Keyword: antioxidant, DPPH, extraction, jamblang, free radicals, oxidative stress

scholarly journals Formulasi Whey Fermentasi dengan Penambahan Buah Merah (Pandanus conoideus Lam) sebagai Tabir Surya

2022 ◽  
Vol 10 (1) ◽  
pp. 28-33
Author(s):  
M. Ranggawati ◽  
I. I. Arief ◽  
Z. Wulandari
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Streptococcus Thermophilus ◽  
Lactobacillus Bulgaricus ◽  
Coarse Particles ◽  
Active Ingredients ◽  
Ic50 Value ◽  
Ic50 Values ◽  
Fruit Oil ◽  
Sunscreen Formulation

Whey produced from cheese processing can be used as non-food products such as sunscreen by fermenting using Streptococcus thermophilus and Lactobacillus bulgaricus. Adding active ingredients such as red fruit oil which contains carotenoids can increase the effectiveness of sunscreen. This study aims to determine the formulation of fermented whey and red fruit oil usage in sunscreen. The study began with the production of fermented whey and sunscreen formulations with ratios of 0, 1:1, 1:2, and 2:1 (fermented whey: red fruit oil). Furthermore, observe the organoleptic, antioxidant, SPF, pH, and homogeneity value. Adding fermented whey and red fruit oil showed no significant effect (P>0.05) onthe organoleptic test of aroma, but significantly (P<0.05) on color and texture. The antioxidant activity value test showed significantly different results (P<0.05) with IC50 values classified as moderate to high.Determination of the SPF value of sunscreen showed significantly different results  (P<0.05), but this value was classified as low protection. Although there was no significant effect on pH testing (P>0.05), the pH of sunscreen cream indicated that it was suitable for topical application. All samples showed homogeneous results and there were no coarse particles or separation between the oil and water phases. The best sunscreen formulation is 1:1 cream with the highest SPF value of 6.86 and strong antioxidant activity with an IC50 value of 56.15 g/mL. Fermented whey and red fruit oil usage as active ingredients are more effective in increasing the protection of the cream against UV rays and free radicals.

scholarly journals Aktivitas Antioksidan Ekstrak Etanol Herba Pegagan (Centella asiatica (L.) Urban) Dengan Metode DPPH (2,2-Difenil-1-Pikrilhidrazil)

2020 ◽  
Vol 3 (1) ◽  
pp. 46-54
Author(s):  
Iif Hanifa Nurrosyidah ◽  
Keyword(s):  
Air Pollution ◽  
Antioxidant Activity ◽  
Free Radicals ◽  
Centella Asiatica ◽  
The Body ◽  
Antioxidant Compounds ◽  
Extract Concentration ◽  
Physical Evaluation ◽  
Ic50 Value

Unhealthy lifestyles and air pollution cause the number of free radicals in the body to increase. To protect the body from free radicals, there are antioxidant compounds as an antidote and stabilize free radicals. One of the Indonesian plants that can be used as antioxidants is gotu kola (Centella asiatica (L.) Urban. This study aims to determine the antioxidant activity from hand and body lotion extract of gotu kola by DPPH (2,2-Diphenyl-1-Picrylhydrazyl) method which is expressed as an IC50 value. Gotu Kola (Centella asiatica (L.) Urban) was extracted by the soxhletation method using a solvent etanol 96% and formulated in the from of hand and body lotion using variations of gotu kola extract concentrations of 1%, 3% and 5%. Then do a physical evaluation of three preparations of hand and body lotion to determine the best formula to be tested for antioxidant activity. Hand and body lotion preparation formula with as much gotu kola extract concentration 5% shows the best formula. The results of testing antioxidant activity on hand and body lotion showed IC50 value of 449.14 ppm. This indicates that the Antioxidant activity of gotu kola extract hand and body lotion is included in the very weak antioxidant criteria.

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 Antioxidant activity ethanol extract of gotu kola (Centella asiatica (L.) Urban) with DPPH method (2,2-Diphenyl-1-Pikrilhidrazil)

2020 ◽  
Vol 3 (2) ◽  
pp. 106
Author(s):  
Muhammad Ainul Yahya ◽  
Iif Hanifa Nurrosyidah
Keyword(s):  
Air Pollution ◽  
Antioxidant Activity ◽  
Free Radicals ◽  
Centella Asiatica ◽  
Ethanol Extract ◽  
The Body ◽  
Antioxidant Compounds ◽  
Test Results ◽  
Ic50 Value ◽  
Dpph Method

Unhealthy lifestyles and air pollution cause the number of free radicals in the body to increase. To protect the body from free radicals, there are antioxidant compounds as an antidote and stabilize free radicals. One of the Indonesian plants that can be used as antioxidants is gotu kola (Centella asiatica (L.) Urban. Objective: This study aims to determine the antioxidant activity of the ethanol extract of gotu kola herb using the DPPH (2,2-Diphenyl-1-pikrilhidrazil) method. with IC50 value. Method: Gotu kola (Centella asiatica (L.) Urban) was extracted by the soxhletation method using 96% ethanol solvent. The testing of antioxidant activity was carried out using the DPPH (2.2 Diphenyl-1-Pikrihydrazil) method. Result: Test results of antioxidant activity The ethanol extract of gotu kola herb showed an IC50 value of 78.20 ppm. Conclusion: This indicated that the ethanol extract of gotu kola herb was included in the criteria for strong antioxidants. 

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