Articles

Estimation of Polyphenol and Antioxidant Content from Papaya (Carica papaya) and Mango (Mangifera indica) Seed, Peel and Leaves

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Papaya (Carica papaya) and mango (Mangifera indica) are two tropical fruits which are widely known for their rich nutritional properties and various health benefits. Papaya belongs to family Caricaceae which has its origin in South Mexico. Mango belongs to the family Anacardiaceae and were originated from India and southern China. As the pulp of these fruits is known to be consumed rapidly while their seeds, peels and leaves are often thrown away as waste. This study involves the estimation of total polyphenol and anti-oxidant activity of the by-products of papaya and mango fruits. The anti-oxidant activity by DPPH method of % inhibition of papaya seed=180 peel=125 leaves=64 is higher compared to mango by-products. In FRAP, ABTS, Radical Cation method of mango samples shown higher levels than papaya. Vitamin c content of mango seeds exhibits high as 15.6mg/100g compared to papaya seed, papaya peel and leaves has higher levels of vitamin c compared to mango peel and leaves. The total polyphenol activity (GAE/g) of mango seed=118.4, peel=55.31, leaves=19.04 exhibits higher value compared to papaya. Papaya seed and peel has more beta carotene content compared to mango whereas mango leaves shown more beta carotene content than papaya. Seeds of papaya and mango has 2.05% and 2.15% pectin, mango peel has more pectin content than papaya 12.45%>8.94% and mango peel has shown slightly more pectin content than papaya as 4.25>3.58. Papaya peel have medium number of abundances of tannin content, seeds and leaves have less in number whereas mango have equal amounts of abundance of tannin content. This study mainly features the importance of the bioactive compounds found in the by-products (seed, peel, leaves) of papaya and mango and their health benefits.

Antioxidant Activity, Nutrient Analysis and Sensory Evaluation of Coconut Apple

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The Coconut Palm is species of a palm tree, Cocos nucifera, that grows to about 30 meters tall and is significantly cultivated in tropical climates. Six hundred species in the palm circle of relatives Arecaceae, and its miles the simplest extant species in the genus Cocos. This study to be determine the antioxidants, Nutritional (vitamin c, Crude fiber, Moisture and Ash content) and Sensory parameters of Coconut apple. The result showed as antioxidant activity by DPPH Method showed as 19.80% %, Total antioxidants activity by FRAP method is 315.27 of inhibition against free radicals. whereas Vitamin C content is 10.95 mg/100gms; Crude Fiber (1.98%) and Ash content (30.2%), Moisture content (28.8%); Sensory evaluation showed that Dried coconut apple scored the highest on the 5 point hedonic scale with aroma (2.75), taste (4.0), texture (3.90), overall acceptability (3.55) compared with the Fresh coconut apple. Coconut apple helps in easy digestibility, boosts immunity, dissolves kidney stones, proper insulin secretion to diabetic patients, protects from cancer, reduces the risk of blood clots and heart attacks. Due to presence of high antioxidant activity in coconut apple helps in preventing cellular damage in the body.

Utilization of Nanogold and Nanosilver as Drugs Delivery on Antioxidant Activity in Herbal Medicine Preparation During Pandemic Covid-19

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The purpose of this study was to determine the effect of adding nanogold and nanosilver with various concentrations on the antioxidant activity of herbal medicine made from black seed, black garlic extract, and propolis. The concentration of nanogold used was 5,10,15,20,25 and 30 ppm with 20 ppm nanosilver concentration. In this study, the activity of antioxidant compounds was tested using the DPPH method with a UV-Vis spectrophotometer. This study shows the percentage of free radical reduction results. The results of this study indicate that there is an effect of adding nanogold in the antioxidant content of herbal medicines. The best nanogold concentration was shown at a concentration of 30 ppm, which was 84,42%. The results show that the greater the concentration of nanogold added, the greater the percent reduction.

Utilization of Nanogold and Nanosilver in Kelor (Moringa Oleifera Lam.) Leaf Extract for Pandemic of Covid-19

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This research has the purpose to determine the characteristics of the synthesis of 20 ppm nanogold using TEM, determine the effect of adding nanogold on the antioxidant activity of Moringa leaves, and determine the best concentration that supports increasing antioxidant activity in Moringa leaves. Nanogold and nanosilver were synthesized using bottom-up methods. The concentrations used for Moringa leaf extract and nanogold were 5, 10, 15, 20, 25, and 30 ppm. The concentration of the nanosilver used is 20 ppm. Nanosilver at a concentration of 20 ppm had the best inhibition of antibacterial activity. Testing of antioxidant activity was carried out using the DPPH method which was analyzed with a UV-Vis spectrophotometer. The results of the TEM nanogold test have a dominant cluster size of 22.17 nm. The best test results for the antioxidant activity of Moringa leaf extract at a concentration of 30 ppm was 60.7258 ppm. The addition of nanogold with a greater concentration of 30 ppm Moringa leaf extract resulted in greater antioxidant activity. The results showed that the best concentration of nanogold as a supporter of antioxidant activity in Moringa leaves was 30 ppm with a percent reduction of 79.288 ppm (very strong category).