STUDY ON ANTIOXIDANT ACTIVITY BISBUL PULP AND RED DRAGON FRUIT STEM BY USING 1,1-DIPHENYL-2-PICRYLHYDRAZIN METHOD

Bisbul (Diospyros discolor Willd.) is a plant of the Ebenaceae family and red dragon (Hylocereus polyrhizus) is a plant of the Cactaceae family. Bisbul and red dragon have bioactive compounds are flavonoids that act as antioxidants. The purpose of this study was measure antioxidant activity from ethanol extract of bisbul pulp and ethanol extract of red dragon fruit stem by DPPH method (1,1-diphenyl-2-picrylhydrazin). Extraction by maseration method and using 96% ethanol as solution. Antioxidant activity assay using the immersion method of DPPH measured absorption at a wavelenght 517 nm and compared with vitamin C. The result showed that the ethanol extract of bisbul pulp (IC50 46.00 ìg/mL) more strong antioxidant activity compared the ethanol extract of red dragon fruit stem (IC50 1020.96 ìg/mL).

Download Full-text

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

Download Full-text

UJI AKTIVITAS ANTIOKSIDAN BEBERAPA EKSTRAK ALGA COKLAT Sargassum polycystum DAN Turbinaria deccurens ASAL PULAU DUTUNGAN SULAWESI SELATAN TERHADAP RADIKAL DPPH

Jurnal Kimia Riset ◽

10.20473/jkr.v4i1.10903 ◽

2019 ◽

Vol 4 (1) ◽

pp. 1

Author(s):

Fitriyanti Jumaetri Sami ◽

Nunuk Hariani Soekamto ◽

Firdaus Firdaus ◽

Jalifah Latip

Keyword(s):

Antioxidant Activity ◽

Vitamin C ◽

Ethyl Acetate ◽

Antioxidant Activities ◽

Antioxidant Vitamin ◽

Activity Assay ◽

Immersion Method ◽

Ic50 Value ◽

Measured Absorption ◽

Hexane Extracts

This study used S. polycystum and T. deccurens were extracted with various solvents (n-hexane, ethyl acetate and ethanol) to determine phytochemical screening and antioxidant activities. Extraction of samples by maceration method, antioxidant activity assay using the immersion method of DPPH (1,1-Diphenyl-2-picryl Hidrazil) measured absorption at a wavelength of 515 nm and compared with the control of antioxidant vitamin C. The results showed that antioxidant activity of the methanol, ethyl acetate, n-hexane extract of S. polycystum have low antioxidant activity with the value IC50 340,06, 180,54, and 502,25 mg/mL. Methanol, ethyl acetate, n-hexane extracts of T. deccurens have low antioxidant activity with value IC50 491,02, 411,80, and 502,7 mg/mL. This potential is lower than vitamin C IC50 value of 1,72 mg/mL.

Download Full-text

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

Download Full-text

EFFECT OF METAL ION Cu (II) and Mg (II) ON THE ACTIVITIES ANTIOXIDANT ANTHOCYANIN OF EXTRACT ETHANOL SKIN DRAGON FRUIT RED(Hylocereuspolyrhizus)

Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) ◽

10.20956/ica.v11i1.6400 ◽

2019 ◽

Vol 11 (1) ◽

pp. 11

Author(s):

Asrul Sani ◽

Ahyar Ahmad ◽

Firdaus Zenta

Keyword(s):

Antioxidant Activity ◽

Metal Ions ◽

Metal Ion ◽

Ethanol Extract ◽

Anthocyanin Content ◽

Color Test ◽

Fruit Skin ◽

Dragon Fruit ◽

Dpph Method ◽

Ethanol Extracts

The effect of Cu2+ and Mg2+ metal ions on the antioxidant activity of anthocyanins of ethanol extract from the red dragon skin fruit (Hylocereus polyrhizus) has been done. Anthocyanin pigments from ethanol extract the red dragon skin fruit, content and antioxidant activity of anthocyanins from the red dragon fruit skin with ethanol solvent, and the effect of Cu2+ and Mg2+ metal ions on the antioxidant activity of anthocyanins. Identification of anthocyanin was done by identification of color test, using spectrophotometer analysis of UV-Vis and FTIR. The anthocyanin content was determined using pH difference method, and determined effect of metal ions extract was done by adding 50 ppm, 100 ppm, and 150 ppm of metal ions Cu2+ and Mg2+ into the anthocyanin extract that was been acidified by HCl , using spectrophotometer analysis of FTIR. Antioxidant activity test using DPPH method. The results show that ethanol extracts the red dragon anthocyanin by content is 12.5241 mg / L and antioxidant activity (IC50) is 0.478 μg / mL and with addition of2+ and Mg2+ metal ions can be increased antioxidant activity (IC50) of anthocyanins to be 0.2259 μg / mL for Cu2+ at concentration 50 ppm and 0.3351 μg / mL for Mg2+ at concentration 50 ppm.

Download Full-text

Formulation, Physical Quality Evaluation, and Antioxidant Activity of Body Butter of Ethanol Extract of Dragon Fruit (Hylocereus polyrhizus) Peel

Majalah Obat Tradisional ◽

10.22146/mot.51763 ◽

2020 ◽

Vol 25 (3) ◽

Author(s):

Agustina Nila Yuliawati ◽

Kadek Duwi Cahyadi

Keyword(s):

Antioxidant Activity ◽

Quality Evaluation ◽

Activity Index ◽

Ethanol Extract ◽

The Body ◽

Fruit Peel ◽

Physical Quality ◽

Antioxidant Content ◽

Dragon Fruit ◽

Hylocereus Polyrhizus

Dragon fruit (Hylocereus polyrhizus) has polyphenols as an antioxidant. It has known that the antioxidant content of dragon fruit peels was more than in the flesh, so it can be used as a source of natural antioxidants to replace synthetic antioxidants. The use of dragon fruit (Hylocereus polyrhizus) peel, especially as topical preparations in the form of body butter, was still rarely done, whereas dragon fruit peel as an antioxidant can be used as an active ingredient of cosmetics. The purpose of this study was to obtain the body butter formula of ethanol extract of dragon fruit (Hylocereus polyrhizus) peel and its physical quality evaluation, to know the antioxidant activity of ethanol extract of dragon fruit (Hylocereus polyrhizus) peel and its body butter. This research was an experimental study with the stages of research consisting of determination of native plants, making ethanol extract of dragon fruit (Hylocereus polyrhizus) peel, ensuring its activity antioxidant, performing body butter formulation procedures, carrying out physical quality evaluation such as organoleptic, homogeneity, pH, spread, protection, and adhesion ability, then antioxidant activity of its body butter. The result of this research showed that the ethanol extract of dragon fruit (Hylocereus polyrhizus) peel has a moderate level of antioxidant (Antioxidant Activity Index / AAI = 0,88). Furthermore, body butter which has contains antioxidant content of ethanol extract of dragon fruit (Hylocereus polyrhizus) peel as much as 0.5% has the best physical quality evaluation during storage and the highest AAI (0,54) among other body butter formulas.

Download Full-text

Aktivitas Antioksidan Ekstrak Etanol Daun Sawo Manila (Acrhras Zapota L.) Menggunakan Metode DPPH (1,1-diphenyl-2-picrylhydrazil)

Media Kesehatan Politeknik Kesehatan Makassar ◽

10.32382/medkes.v16i1.1788 ◽

2021 ◽

Vol 16 (1) ◽

pp. 1

Author(s):

Rugayyah Alyidrus ◽

A. Suparlan Isya Syamsu ◽

Nurjannah Nurjannah

Keyword(s):

Antioxidant Activity ◽

Vitamin C ◽

Wave Length ◽

Ethanol Extract ◽

Positive Control ◽

Flavonoid Compound ◽

Dpph Method

ABSTRACT Extract Ethanol of Manila Sapodilla (Acrhras zapota L.) contain flavonoid compound with antioxidant activity. Aim of this research is to find out ethanol extract of manila sapodilla (Acrhras zapota L.) has antioxidant activity with DPPH method (1,1-diphenyl-2-picrylhydrazil). Extract was made by using maceration method by using ethanol liquid 70%. Ethanol extract of manila sapodilla (Acrhras zapota L.) was made main liquid 1000 ppm after that therewere dilution of 20, 40, 60, and 80 ppm. Positive control (Vitamin C) with concentration 2, 4, 6, and 8 ppm. Each of concentration was taken 1 ml then added 2 ml of DPPH (1,1-diphenyl-2-picrylhydrazil) liquid, and then it is homogent and incubated during 30 minutes. After that, measurement of spectrophotometer UV-Vis was conducted in wave length of 517 nm. Result of data was analyzed by using absorbansi with grapic of concentration relationship with percentage of DPPH (1,1-diphenyl-2-picrylhydrazil) inhibition. Result of research shows that ethanol extract of manila sapodilla (Acrhras zapota L.) was proven has the antioxidant activity very strong with IC50 8,2786 µg/mL. Keywords : Manila Sapodilla, DPPH, Antioxidant, Spectrophotometer. ABSTRAK Ekstrak etanol daun sawo manila (Acrhras zapota L.) mengandung senyawa flavonoid yang memiliki aktivitas sebagai antioksidan. Tujuan penelitian ini untuk mengetahui apakah ekstrak etanol daun sawo manila (Acrhras zapota L.) memiliki aktivitas antioksidan dengan metode DPPH (1,1-diphenyl-2-picrylhydrazil). Ekstrak dibuat dengan metode maserasi menggunakan pelarut etanol 70%. Ekstrak etanol daun sawo manila (Acrhras zapota L.) dibuat larutan induk 1000 ppm setelah itu dilakukan pengenceran 20, 40, 60, dan 80 ppm. Kontrol positif (Vitamin C) dengan konsentrasi 2, 4, 6, dan 8 ppm. Dari masing-masing konsentrasi diambil 1 ml lalu di tambahkan 2 ml larutan DPPH (1,1-diphenyl-2-picrylhydrazil), kemudian dihomogenkan dan diinkubasi selama 30 menit. Setelah itu,dilakukan pengukuran spektrofotometer UV-Vis pada panjang gelombang 517 nm. Data hasil dianalisis pengukuran absorbansi menggunakan grafik hubungan konsentrasi dengan persen inhibisi DPPH (1,1-diphenyl-2-picrylhydrazil). Hasil penelitian menunjukkan bahwa ekstrak etanol daun sawo manila (Acrhras zapota L.) terbukti memiliki aktivitas antioksidan yang sangat kuat dengan nilai IC50 8,2786 µg/mL. Kata kunci : Sawo Manila, DPPH, Antioksidan, Spektrofotometer.

Download Full-text

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

Jurnal Pharmascience ◽

10.20527/jps.v4i1.5760 ◽

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.

Download Full-text

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

Jurnal Sains Natural ◽

10.31938/jsn.v11i2.309 ◽

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

Download Full-text

PENGARUH PENAMBAHAN SARI BUAH NAGA MERAH (Hylocereus polyrhizus) TERHADAP KARAKTERISTIK YOGHURT CAMPURAN SUSU SAPI DAN KACANG MERAH (Phaseolus vulgaris)

Jurnal Ilmu dan Teknologi Pangan (ITEPA) ◽

10.24843/itepa.2019.v08.i01.p02 ◽

2019 ◽

Vol 8 (1) ◽

pp. 8

Author(s):

Dewi Citra Laksmi Agung Putri ◽

I Nengah Kencana Putra ◽

I Putu Suparthana

Keyword(s):

Antioxidant Activity ◽

Lactic Acid ◽

Lactic Acid Bacteria ◽

Vitamin C ◽

Fruit Juice ◽

Total Acid ◽

Dragon Fruit ◽

Bean Research ◽

Red Bean ◽

Hylocereus Polyrhizus

The aim of this research was to know the effect of adding red dragon fruit juice (RDFJ) for the characteristics of yoghurt mixed milk and red bean. Research design used a randomized complete design (RAL) with the concentration 0 %, 5 %, 10 %, 15 %, 20 %, and 25 % of RDFJ. Each treatment repeated three times to obtain 18 units of sample. The data was analyzed by ANOVA and if it had effect on variabel then continued by Duncan Test. Sensory was analyzed by hedonic and scoring test for color, flavor, taste, texture and overall acceptance of the resulting product using 15 trained panelists. The result showed that adding RDFJ had very significant effects (P < 0,01) for total acid, Vitamin C, antioxidant activity, total lactic acid bacteria (BAL) and had significant effect (P < 0,05) for pH. The best treatment was on 15 % of RDFJ with value 1.22 % of total lactic acid, 4.41 of pH, 1.11 mg/100g of Vitamin C, 48.40 % of antioxidant activity, 1.87 x 108 CFU/ml of total lactic acid bacteria (BAL), color (red and liked), flavor (pleasant and liked), taste (sour and liked), texture (aqueous) and overall acceptance (liked).

Download Full-text

FORMULASI SEDIAAN KRIM EKSTRAK ETANOL DAUN BAYAM MERAH (Amaranthus tricolor L.) DAN UJI AKTIVITAS ANTIOKSIDAN MENGGUNAKAN METODE DPPH (1.1-diphenyl-2-picrylhydrazyl)

PHARMACON ◽

10.35799/pha.9.2020.30021 ◽

2020 ◽

Vol 9 (3) ◽

pp. 372

Author(s):

Veronica O. Moilati ◽

Paulina V. Y. Yamlean ◽

Gerald Rundengan

Keyword(s):

Antioxidant Activity ◽

Vitamin C ◽

Ethanol Extract ◽

Amaranthus Tricolor ◽

Physical Test ◽

Cycling Test ◽

Test Parameters ◽

Dpph Method ◽

Before And After ◽

Spinach Leaves

ABSTRACT Red spinach leaves (Amaranthus tricolor L.) contain flavonoid compounds, saponins and tannins which had antioxidant potential. This study aims to test the antioxidant activity of ethanol extracts of Red spinach (Amaranthus tricolor L.) leaves used to be DPPH method and evaluate cream preparations used physical test parameters. This study used a laboratory experimental method. The formulate of cream preparations and variations in the concentration of 0,25%, 0,5%, 0,75 %, 1%, 1,25%. The results obtained before and after the cycling test showed that cream preparations with 0,5% concentration met organoleptic requirements, homogeneity, cream pH 5,29 (4,5-6,5), cream adhesion 16,20 seconds (> 4 seconds ), the spreadability of the cream is 5,37 cm (5-7 cm) and the antioxidant activity test produced value 2,82 ppm and vitamin C value of 0,22 ppm. It can be concluded that cream preparation of ethanol extract of Red spinach leaves meets physical test parameters, is stable and had very strong antioxidant activity. Key words : Red spinach (Amaranthus tricolor L.), Cream, Antioxidants, DPPH (1.1-diphenyl-2- picrylhydrazyl). ABSTRAK Daun Bayam merah (Amaranthus tricolor L.) mengandung senyawa flavonoid, saponin dan tannin yang memiliki potensial antioksidan. Penelitian ini bertujuan untuk menguji aktivitas antioksidan sediaan krim ekstrak etanol daun Bayam merah (Amaranthus tricolor L.) menggunakan metode DPPH dan mengevaluasi sediaan krim menggunakan parameter uji fisik. Penelitian ini menggunakan metode eksperimental laboratorium dan formulasi sediaan krim dibuat dengan variasi konsentrasi 0,25%, 0,5%, 0,75%%, 1%, 1,25%. Hasil penelitian yang didapat sebelum dan sesudah cycling test menunjukkan bahwa sediaan krim konsentrasi 0,5% memenuhi persyaratan organoleptis, homogenitas, pH krim 5,29 (4,5-6,5), daya lekat krim 16,20 detik (>4 detik), daya sebar krim 5,37 cm (5-7 cm) serta uji aktivitas antioksidan menghasilkan nilai 2,82 ppm dan nilai vitamin C 0,22 ppm. Dapat disimpulkan bahwa sediaan krim ekstrak etanol daun Bayam merah memenuhi parameter uji fisik, stabil dan memiliki aktivitas antioksidan yang sangat kuat. Kata kunci : Bayam merah (Amaranthus tricolor L.), Krim, Antioksidan, DPPH (1.1-diphenyl-2-picrylhydrazyl).

Download Full-text