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Arumanis mango rind (Mangifera indica L) usually becomes organic waste, but contains flavonoid secondary metabolites. Arumanis mango rind extract was chosen so that it can be used as an antioxidant compound, which is an antidote to free radicals. The aim of this research was to examine the antioxidant activity and toxicity tests of arumanis mango rind extract. The result is that the maximum absorption wave of DPPH is 518 nm, with an absorbance of 0.788. The results of comparative antioxidant activity for gallic acid obtained IC50 = 4.424 µg/mL, while the arumanis mango rind extract sample had an IC50 value = 18.294 µg/mL. For toxicity test results, the LC50 value = 169.043 µg/mL. Based on the research results obtained, it can be concluded that the antioxidant activity of arumanis mango rind extract is classified as very strong (<50 µg/mL) and the toxicity is classified as toxic (<1,000 µg/mL).

Background:  Air pollution has become a serious issue, prompting considerations on obtaining essential substances known as antioxidants for the body. Preventive measures can be taken by utilizing herbal plants such as binahong and mint, known for their antioxidant properties.Objective: Measure the activity of the radical barrier of DPPH powder drink. Method: This study was a genuine research type. Results: Phytochemical screening revealed the presence of alkaloids, tannins, and saponins in the positive samples. The inhibition activity results for single formulations were as follows: binahong formulation 83,835%, mint formulation 85,011%, formulation (1 : 1) 83,043%, formulation (1 : 2) 83,210%, and formulation (2 : 1) 81,259%. Organoleptic tests indicated that formulation III was acceptable based on sensory evaluation. Conclusion: The powdered drink combination of binahong and mint leaves contains antioxidant compounds: alkaloids, flavonoids, tannins, and saponins. The highest DPPH radical scavenging activity was observed in the single mint leaf formulation and the lowest barrier is in combination powder drinks with (1 : 1) formulation, and formulation (1:1) was most acceptable based on sensory evaluation and there is no influence of variation between powdered drink formulation series..    

Pear skin contains flavonoids which have potential as antioxidants. Considering the existence of humans as social creatures, interacting with each other requires self-confidence to be well accepted. For this reason, humans need self-care to appear charming, attractive and full of self-confidence. Masks are a type of cosmetic treatment that is well known and widely used. The mask works deeply to remove dead horn cells on the skin. This research aimed to determine the potential antioxidant activity of the ethanol extract of pear peel (Pyrus bretschneideri) which was formulated as a sheet mask preparation. Extraction was carried out by maceration using 96% ethanol to obtain pear peel extract. The antioxidant activity test method was carried out using the DPPH (2,2-diphenyl-1-picrylhydrazyl) method. The results obtained from the concentration of the sheet mask preparation of pear peel extract (Phyrus bretschneideri) were homogeneous and stable. The pH results obtained from F0 (5,1), F1 (5,4), F2 (5,5), F3 (5,6), are still within the safe range of facial skin pH. The results of the antioxidant activity test showed that the IC50 value for F1 was 84.58 ppm with intensity (Strong), F2 69.96 ppm with intensity (Strong), and F3 63.79 ppm with intensity (Strong).

Red rose (Rosa damascena Mill) is one of the plant that can be easily found in Indonesia. The corolla of red roses contains natural dyes, namely anthocyanins which can be used as food coloring and the function as antioxidants or counteract free radicals. The corrola of red roses is used as a raw material in distillation of rose water. Rose water distillation poduces is a dark red liquid. This liquid waste has not been utilized optimally. Therefore, that further research is needed to determine the chemical content in it. So that the expected outcome of this research is the best chemical and sensory analysis of red rose water distillation waste based on it's antioxidant activity. The research design used a 2 factor factorial completely randomized design (CRD). The first factor is the variation of the distillation method while the second factor is the heating temperature of the red rose water waste (heated waste). The optimal treatment result was a combination of steam distillation method variations and 70°C heating temperature with following results obtained : 77,32% RSH DPPH, 61,02% FRAP value, 71,20 mg/g vitamin C, 4,58 mg  total phenol.GAE/ g, pH 4,15, anthocyanin 121,93 mg/g, brightness 27,23 (*L), red-green chromatic 7,13 (*a), blue-yellow chromatic 7,54 (*b). Sensory analysis of color was 4.36 (deep red), other scents were 2.47 (slightly sour), rose aroma was 3.64 (strong), and overall preference was 3.75 (liked).

Free radicals are unpaired electron molecules that are unstable and can attack important macromolecules causing cell damage in the body. Antioxidants themselves are compounds that can prevent oxidative reactions by free radicals. One of the plants that has the potential as an antioxidant is Walther indica. This study aims to determine the antioxidant activity and determine the total flavonoid content of Waltheria indica stem extract. The method used in this study is the DPPH method which is used to determine antioxidant activity. The antioxidant activity of the Waltheria indica ethanol extract was obtained with an IC50 value of 148.7116 ± 2.061 with a moderate antioxidant category.

Katte tong arrowroot-wheat flour has potential functional food that can be developed to optimize local ingredients. The addition of white saffron powder and CMC, which believed to provide health benefits because has high antioxidant activity and improve the texture to be sturdy. The purpose of this study was to determine the effect of the addition of white saffron powder and CMC on the physical, chemical and level of liking of katte tong arrowroot. This research was conducted to make katte tong with arrowroot-wheat flour with the addition of white saffron powder and CMC using a two-factorial completely randomized design (CRD). Factors included the addition of white saffron powder at 5, 10, 15% and CMC at 0.5, 1, 1.5%. Katte tong garut was then tested physically, chemically, and tested for favorability. The results showed that the addition of white saffron powder and CMC had a significant effect on the physical and chemical properties and preference level of the katte tong produced. The results of the analysis of the selected arrowroot katte tong have a moisture content of 1.82%bb, protein 7.89%bb, antioxidant activity of DPPH method 22.65% RSA, antioxidant activity of FRAP method 3.6 mg Efero/g and total phenols content 11.41 mg EAG/g.

Antioxidant compounds will donate one electron to unstable free radicals so that these free radicals can be neutralized and no longer disrupt the body's metabolism (Rahmi, 2017). The human body actually produces several types of antioxidant enzymes, namely superoxide dismutase (SOD), catalase, and glutathione peroxidase, but the amounts are not sufficient to overcome excessive free radicals, so exogenous antioxidants are needed.

Rice is the main product obtained from grain produced by the rice plant (Oryza sativa) whose entire layer has been peeled off and the bran layer has been separated in the form of head rice, whole rice grains, broken rice, and groats. There are several types of pigmented rice such as brown rice, black rice and black glutinous rice. These kinds of rice have not been utilized optimally so that a processing process is needed to increase the economic value of the colored rice. One of the processing is made as flour so that it is durable and easy to distribute and flour can be used as a food processing material that is practical, easy and durable. One of the processed rice is rice flour. Colored rice flour is the result of processing brown rice, black rice and black glutinous rice by milling or flouring. This study aims to determine the optimal temperature in the manufacture of colored rice flour in order to obtain colored rice flour which has high antioxidant activity and high anthocyanins. The result of flouring is in the form of very fine grains. Flour has a low water content so it is more durable and long lasting. In order to reduce the moisture content, drying is carried out. The study used a completely randomized design (RAL) consisting of 2 factors. The first factor was the type of colored rice, while the second factor was the drying temperature of rice flour. The optimal treatment results were a combination of black glutinous rice flour treatment and a drying temperature of 45°C for 60 minutes, the following results were obtained: water content 7.44%, antioxidant activity by DPPH method 69.89%, antioxidant activity by FRAP method 81.35%, yield 25.29%, total phenol 175.85 mg/kg, and anthocyanin levels 327.10 ppm. Changes in temperature during the drying process of colored rice will affect the characteristics of the colored rice.

Australian guava fruit (Psidium guajava L.) is thought to have antioxidant activity. Antioxidants are compounds that are useful for treating oxidative damage caused by free radicals in the body. The aim of this study was to determine the secondary metabolite content and IC50 value on the antioxidant activity of extracts and fractions from Australian guava fruit. This research used four solvents, including 70% ethanol extract, n-hexane fraction, ethyl acetate fraction and water fraction with varying concentrations of 50 ppm, 100 ppm, 150 ppm, 200 ppm and 250 ppm. The antioxidant test was carried out using a UV-Vis spectrophotometry tool with the DPPH method at a wavelength of 515 nm with an incubation time of 15 minutes. Antioxidant activity tests show that Australian guava fruit is effective as an antioxidant in capturing free radicals. The IC50 value for the ethanol extract is 0.784 µg/mL, the n-hexane fraction is 2.448 µg/mL, the ethyl acetate fraction is 1.015 µg/mL and the water fraction is 0.676 µg/mL. All samples were included in the very strong category, but the water fraction had the best antioxidant activity among the ethanol extract, n-hexane and ethyl acetate fractions.

Free radicals work by binding to molecules or cells in the body and are very dangerous because they can damage cells in the body and trigger disease. Antioxidants are compounds that can counteract the effects of free radicals. This study aims to determine the antioxidant activity of ethanol extract and the n-hexane, ethyl-acetate and water fractions of Australian guava peel (Psidium guajava L.). Extraction was carried out by maceration method using 70% ethanol. The skin of the Australian guava (Psidium guajava L.) contains alkaloids, flavonoids, tannins, triterpenoids and saponins. Fractionation was carried out with solvents based on polarity differences obtained by the n-hexane fraction, ethyl acetate fraction, and air fraction. Antioxidant test by inhibiting DPPH free radicals (1,1-Diphenyl-2-Picrylhydrazyl) on ethanol extract and n-hexane fraction, ethyl acetate fraction and air at several concentrations, namely 50 ppm, 100 ppm, 150 ppm, 200 ppm, and 250 ppm. The IC50 calculation results obtained for the ethanol extract were 4.406 µg/mL, the n-hexane fraction was 4.131 µg/mL, the ethyl acetate fraction was 3.812 µg/mL and the air fraction was 3.312 µg/mL. The antioxidant activity with the best IC50 value was the fraction air.

Excessive exposure to sunlight is a source of free radicals that cause damage to the skin such as redness, dullness, and aging, so skincare containing antioxidants is needed, one of which is a face mist made from carrot root extract. The carrot (Daucus carota L) is a plant rich in antioxidants such as β-carotene and vitamin C which can counteract free radicals. This research aims to determine whether carrot tuber extract can be formulated in a face mist preparation and to determine the value of antioxidant activity in the carrot tuber extract face mist preparation. The method used in this study is the experimental method. Preparation of carrot root extract was carried out using the maceration method with 70% ethanol solvent. Facemist carrot root extracts was made with various concentrations of FI 1%, FII 3%, and FIII 5%. All preparations were subjected to physical stability (organoleptic, pH, spray spreadability, dry time, and homogeneity) and antioxidant activity tests using the DPPH method. The results of physical stability stated that all formulas met the physical quality requirements. The antioxidant activity value of carrot tuber extracts facemist at concentrations of 1%, 3%, and 5% has an IC₅₀ value of 41.31ppm, 34.64ppm, and 28.80ppm respectively. This value is in the very strong category. The conclusion of this study is that carrot root extract can be formulated as a face mist preparation and has a very strong antioxidant value.

Sunflower (Halianthus annuus L.) is a flower that is widely consumed by the world's people. The part that is consumed from the sunflower is the seeds of the flower. Sunflower seeds have many useful ingredients in them, such as high nutritional value, being a good source of unsaturated fat, protein, inorganic compounds, vitamin E. One of the plants that has the potential as an antioxidant is sunflower (Halianthus annuus L.). The purpose of this study was to determine whether sunflower seed extract pressed powder (Halianthus annuus L.) had good physical quality, to determine whether sunflower seed extract pressed powder (Halianthus annuus L.) had antioxidant activity, to determine what concentrations of sunflower seed extract pressed powder (Halianthus annuus L.) had strong antioxidant activity as a good compact powder. Testing the antioxidant activity using the DPPH method with a positive control, namely vitamin c. The results of this study indicate that sunflower seed extract (Halianthus annuus. L) can be made into solid powder preparations, has an extract antioxidant activity of 96.78 μg/mL and has antioxidant activity when made into pressed powder preparations of 176.20 μg/mL with a concentration of 2.5%, 143.51 μg/mL with a concentration of 5%, and 121.22 μg/mL with a concentration of 7.5%.

A peel-off gel mask is a cosmetic used for facial skin care in the form of a gel. Porang tuber extract peel-off gel mask (Amorphophallus muelleri) contains polyphenolic tannins which are efficacious as antioxidants. This study aims to determine the formulation of peel-off gel mask preparations of porang tuber extract and to determine the physical evaluation and antioxidant test of peel-off gel mask preparations of porang tuber extract using the DPPH method. Experimental formulation method with 7% polyvinyl alcohol (PVA) base. The active ingredient used is porang tuber extract with a concentration of 0.5% (F1), 1% (F2), and 1.5% (F3). Evaluation of the preparations carried out were organoleptic test, homogeneity test, pH test, drying preparation test, spreadability test, hedonic test and stability test. Based on the results of the stability test, it was shown that the peel-off gel mask preparation of porang tuber ethanol extract at various concentrations met the requirements for each test parameter. The antioxidant test results showed that F1 had an IC50 value of 48.75 ppm, F2 had an IC50 value of 43.18 ppm, and F3 had an IC50 value of 11.15 ppm which means that the three formulas have very strong antioxidant activity.

Penyakit degeneratif merupakan penyebab terbesar kematian di Indonesia. Jumlah kematian akibat penyakit tersebut terus meningkat. Hal tersebut disebabkan karena sebagian besar penyakit diawali oleh adanya reaksi oksidasi yang berlebih dalam tubuh. Reaksi oksidasi yang terjadi setiap saat dalam tubuh dapat menyebabkan terbentuknya radikal bebas. Substansi untuk mengurangi terjadinya pembentukan radikal bebas adalah antioksidan. Tanaman kemuning merupakan salah satu tanaman yang dapat dimanfaatkan sebagai sumber antioksidan alami. Tanaman kemuning memiliki berbagai kandungan senyawa diantaranya adalah fenol, kumarin, tanin dan flavonoid. Senyawa-senyawa tersebut yang mempunyai kemampuan untuk mengurangi radikal bebas. Tujuan penelitian ini adalah untuk mengetahui kadar flavonoid total dan aktivitas antioksidan pada fraksi etil asetat daun kemuning. Metode penelitian dalam penentuan kadar flavonoid total dilakukan secara spektrofotometri UV-Vis dengan pereaksi AlCl3 sedangkan aktivitas antioksidan ditentukan dengan metode DPPH dengan pembanding kuersetin. Hasil penelitian menunjukkan fraksi etil asetat daun kemuning mengandung senyawa fenol, tanin, saponin dan flavonoid. Fraksi etil asetat daun kemuning mengandung kadar flavonoid total sebesar 10,021% dan memiliki aktivitas antioksidan dengan nilai IC50 sebesar 83,222 ppm. Penelitian ini menunjukkan bahwa fraksi etil asetat daun kemuning memiliki potensi sebagai antioksidan yang kuat.

Permen jelly adalah permen dengan bahan dasar gelatin yang mengakibatkan bertekstur kenyal. Pada penelitian ini dibuat permen jelly yang berbahan dasar daun ungu, rosella dan jahe sehingga akan menghasilkan produk permen jelly yang kaya akan antioksidan. Tujuan dari penelitian ini yaitu menentukan formulasi optimal pada pembuatan permen jelly daun ungu dan rosella dengan penambahan jahe yang menghasilkan permen jelly yang tinggi aktivitas antioksidan dan mempunyai sifat sensoris yang disukai serta menentukan karakteristik sifat fisikokimia dan sensoris permen jelly. Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap (RAL) dengan satu faktor perbandingan ekstrak jahe, ekstrak daun ungu dan ekstrak bunga rosella. Formulasi yang dihasilkan ada sembilan antara lain F1 (5%; 71,25%; 23,75%), F2 (5%; 47,5%; 47,5%), F3 (5%; 23,75%; 71,25%), F4 (10%; 67,50%; 22,50%), F5 (10%; 47,00%; 47,00%), F6 (10%; 22,50%; 67,50%), F7 (15%; 63,75%; 21,25%), F8 (15%; 42,50%; 42,50%) dan F9 (15%; 21,25%; 63,75%). Hasil penelitian menunjukkan bahwa formulasi terbaik permen jelly daun ungu dan rosella dengan penambahan jahe berdasarkan nilai kimia dan organoleptik adalah ekstrak jahe 15%, daun ungu 63,75% dan rosella 21,25% dengan kadar air sebesar 17,64%, kadar abu sebesar 0,23%, kadar gula reduksi 19,25%, total fenol sebesar 1,32 mg GAE/ml serta aktivitas antioksidan DPPH 7,29%.

Wedang cemue is a traditional drink originating from the Ngawi area, East Java. The existence of wedang cemue is getting eliminated due to the presence of instant drink that we ready to serve and more practical. To preserve the existence of wedang cemue, an innovation is needed that can promote its existence, which is made cemue into to instant. The purpose of this study was to determine the preference of instant cemue, as well as to determine of antioxidant activity. The product preference test (taste, color and aroma) used hedonic scale. The preference test involved 25 panelist. A part from the hedonic test, antioxidant activity test were also carried out using the DPPH test. This study used a Completely Randomized Design with 1 factor that is the variation of formulations (4 formulations). Each formulation was repeated 3 times. The data obtained werw analyzed using ANOVA and further testing with DMRT. The results of cemue instant showed that the formulation I obtained higher acceptability on color (3,84), aroma (3,68) and taste (3,88). The antioxidant activity of formulation I showed the highest result (71,507).

Water, one of the most important elements of the body and one of the macro substances, has the similar role as carbohydrates, fats and proteins for us humans. Humans cannot survive in few days without drinking. Toxins in human body can be cleansed by consuming water regularly. Infused water alternately becomes the another option to encourage people to drink much water. Furthermore, infused water can help out many people who do not have time or do not like eating fruits. However, many people do not drink water because of their personal reason although infused water might become the second opinion after pure water, and can increase an appetite because of the fruit color. Based on the reason above, the research purposes were appointed to examine the effect of the added date palm and soaking time towards the levels of anti-oxidant in apple-cinnamon infused water. The study was conducted using a Completely Randomized Design (CRD) factorial with 2 factors. In the first factor, the research media was added with dates (0, 10, and 20 grams), and the second factor, the media was measured from its soaking time (4, 8, and 12 hours). The research was initiated by creating of apple-cinnamon infused water with the aadditional various dates. Then, conducting various analyses like chemical analysis, total sugar content analysis, vitamin C, DPPH and FRAP antioxidant activity, total phenol, total solids, and pH. The optimum result was emerged when the additional 10 gram of dates and 4 hours of immersion time were combined. The characteristics of infused water are total sugar 24.37%, vitamin C 11.39 mg / 100 ml, 34.82% RSA DPPH, FRAP value 5.15%, total phenol 18.51 mg gallic acid / 100 ml, total solids 4.75oBrix, and the degree of acidity (pH) 5.65.

Kopi merupakan salah satu jenis tanamannperkebunan yang sudah lama dibudidayakan dannmemiliki nilai ekonomi yang tinggi. Biji kopi umumnya diolah menjadi kopi bubuk. Produk kopi ini ditambahhdengan rempah-rempah yaitu kapulaga dan kayu manis sehinggaaakan menghasilkan produk kopi yang kaya akan antioksidan. Tujuan dari penelitian ini yaitu menentukannpengaruh penambahan kapulaga dan kayu manis dalam kopi serta menentukan pengaruh variasi komposisi rempah terhadappkopi dan aktivitasSantioksidan kopi rempah. Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap (RAL) dengan faktor pertama perbandinganSkopi dan rempah (100:0, 99:1, dan 98:2) dengan perbandinganSkapulaga dan kayuumanis 1:3. Faktor kedua yaitu perbedaan suhu roasting kopi (205oC, 220oC, 235oC). Hasil penelitian ini menunjukan bahwa formulasi kopi dengannpenambahan rempah (kapulaga dan kayu manis) terbaik berdasarkan nilai kimia dan organoleptikSadalahhkopi 100 gram rempah 0 gram dengan suhu 220oC dengan kadar air sebesar 5,536%, kadar abu sebesar 4,705%, aktivitas antioksidan DPPH sebesar 67,886%, aktivitas antioksidan FRAP sebesar 11,396%, total fenol sebesar 2,851 mg GAE/g serta kadar kafein sebesar 18,290 mg/g.

Masyarakat kecematan kairatu biasa menggunakan daun sirih popar (ficus septica burm) sebagai obat luka, penyakit kulit, mengatasi bisul. Masyarakat maluku belum mengetahui kandungan dan manfaat lain dari tanaman  awar-awar /sirih popar. Tujuan dari penelitian ini adalah untuk melihatkan duangan senyawa fitokimia serta melihat aktivitas antioksidan pada sampel. Menggunakan metode DPPH dan di ukur pada spektrofotometri UV-Vis. Hasil skrining fitokimia menunjukan daun awar-awar positif mengandung senyawa fitokimia vlavonoid, fenol, saponin, tanin. Hasil pengukuran dari spektrofotometri UV-Vis aktivitas antioksidan dengan metode DPPH menunjukan bahwa, pada Ekstrak methanol daun awar-awar mempunyai aktivitas antioksidan yang kuat dengan nilai IC50 sebesar (56,169 ppm), sedangkan aktivitas antioksidan vitamin C sangat kuat dari pada ekstrak methanol daun awar-awar dengan nilai IC50  (25,437ppm).

Jagung sebagai bahan pangan akan semakin diminati konsumen, terutama bagi yang mementingkan pangan sehat, dengan harga terjangkau bagi semua kalangan. Selain sebagai sumber karbohidrat, jagung juga merupakan sumber protein yang penting dalam menu masyarakat di Indonesia. Tujuan penelitian ini adalah : 1) mengetahui kandungan vitamin B1 pada pasta spagetty tepung jagung dengan massa jagung 250 gram, 300 gram dan 350 gram. 2) mengetahui kandungan vitamin B2 pada pasta spagetty tepung jagung dengan massa jagung 250 gram, 300 gram dan 350 gram. 3) mengetahui kandungan vitamin protein pada pasta spagetty tepung jagung dengan massa jagung 250 gram, 300 gram dan 350 gram. Metode pengumpulan data yang digunakan adalah penilaian subyektif dengan spektro photo meter (DppH) dalam analisis kandungan B1, B2 dan protein pada pasta spagetty menggunakan bahan dasar tepung jagung. Analisis destripsi prosentase pada uji kesukaan konsumen. Hasil penelitian pasta spagetty dari jagung yaitu 1) sampel A (massa jagung 250 gram) vitamin B1 49, 053 %, protein 5, 671 % dan air 52, 865 %. 2) sampel B (massa jagung 300 gram) B1 52, 089 %, protein 5, 391 % dan air 56,897 %  3) sampel C (massa jagung 350 gram) B1 54,897 %, protein 5, 082 % dan air 60, 482 %. Kesimpulan pada penelitian ini bahwa kandungan dari spagetty dari bahan dasar tepung jagung local bisa memiliki kwalitas yang tidak jauh berbeda dengan spagetty pada umumnya sehingga kedepannya dapat di jadikan alternative olahan makanan bahan dasar jagung.