scholarly journals Daya Antioksidan Ekstrak Kulit Buah Naga Dan Sabun Ekstrak Kulit Buah Naga (Hylocereus Polyrhizuz)

2020 ◽  
Vol 6 (1) ◽  
pp. 22-25
Author(s):  
Mohamad Ikram ◽  
Nining Sugihartini ◽  
Any Guntarti

Red dragon fruit peel extract contains betalain which has antioxidant activity. In addition, this extract also contains dyes that can be used as coloring agents in cosmetic preparations. The purpose of this study was to study the activity of dragon fruit peel extract and red dragon fruit peel extract soap with various concentrations. Antioxidant activity is taken by the DPPH method. The concentration of red dragon fruit peel extract in soap is 0.3; 0.6; 0.9%. Test results show red dragon fruit extract soap has lower antioxidant activity than the extract. The increased concentration of the extract caused an increase in the antioxidant activity of the red dragon fruit peel extract soap.

2019 ◽  
Vol 30 (4) ◽  
pp. 247
Author(s):  
Liana Liana ◽  
Rizal Rizal ◽  
Wahyu Widowati ◽  
Fioni Fioni ◽  
Khainir Akbar ◽  
...  

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.


2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Sunarmi Sunarmi ◽  
Susilo Yulianto

Abstract: Antioxidant, Red Dragon Fruit, Gel Mask. Skin is an organ that covers the entire human body, which has protection against external influences. Free radicals and the oxidation reaction can be inhibited by an antioxidant compound. Red dragon fruit peel is rarely used but has high antioxidant activity that can be used for skin care, especially facial skin. Red dragon fruit peel can be formulated into various dosage form of antioxidants for the face skin, one of which peel-off mask gel. This study aimed to test the antioxidant activity of peel-off mask gel with the active ingredient of red dragon fruit peel extracts. This research uses experimental methods. Red dragon fruit peel extracted by maceration in 70% ethanol and concentrated. Gel mask made in 3 variations extract concentration, ie formula A, B and C 0.175 g, 0.350 g and 0,700 g respectively. The physical stability test was conducted by cycling test for 6 cycles. The physical properties of the preparation were tested before and after storage include adhesion, dispersive power, pH, viscosity and time to dry. Antioxidant activity tested with DPPH method. Based on test results obtained physical stability, third-formula gel mask physically qualified and stable, except for the dispersive power. Antioxidant activity decreased after the storage. The highest activity was shown by formula C with an IC50 value of 3497.113 ppm. Based on IC50 values, this gel mask has an inactive. antioxidant activity.


KOVALEN ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 1-8
Author(s):  
Jaya Hardi ◽  
Dian Citra ◽  
Syamsuddin ◽  
Dwi Juli Pusptasari

Extract of super red dragon fruit peel has an antioxidant activity that can prevent free radicals from outside and its activity can be maintained by the coating of super red dragon fruit peel extract with maltodextrin The coating efficiency of super red dragon fruit peel extract with maltodextrin can be controlled with the speed of stirring during microencapsulation experiment. In order to obtain the highest microencapsulation efficiency and compare the antioxidant activity of super red dragon fruit peel extract before and after microencapsulation experiment. The study of coating efficiency has been done with microencapsulation that was carried out using the freeze-drying technique. During the microencapsulation of super red dragon fruit peel extract with freeze-drying technique, stirring speed in the microencapsulation process was 600 rpm, 800 rpm, 1000 rpm, 1200 rpm, and 1400 rpm respectively. From the microencapsulation process of super red dragon fruit peel extract coated with maltodextrin, it was obtained the highest microencapsulation efficiency at stirring speed of 800 rpm, which was 66.85% and had a particle size of 14.24 µm. It can be concluded that the antioxidant activity before and after encapsulation included a very weak category with IC50 values of 205.42 ppm for extracts and 246.32 ppm for microcapsules. Keywords: Super red dragon fruit peel, freeze-drying, microencapsulation, maltodextrin


2017 ◽  
Vol 3 (3) ◽  
pp. 232
Author(s):  
Heni Wagiyanti ◽  
Rasuane Noor

Prepared slide of plant tissue needs to be staining to facilitate observations under microscope. Laboratorium activities in schools usually use synthetic dyes which expensive and can be damaged the student. Therefore the exploration of alternative dyes need to be established, such as utilizing of red dragon fruit (Hylocereus castaricensis Britt. Et R.). This study aims to (1) find out the best concentration of dragon fruit peel extract for staining plant tissue prepared slide and (2) to develop the practical guide related to plant tissue observation. The qualitative research used different concentration  of red dragon fruit peel extract, namely: 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100% with 3 repetitions. Data were obtained from observation photos of prepared slide. The result showed that the most contrast prepared slide was used red dragon fruit extract in 60% concentration. The result use to arrange practical guide in observation of plant tissues which is validated by material expert. The validation result showed “very good” criteria (86.01%).


2017 ◽  
Vol 16 (2) ◽  
Author(s):  
Analianasari Analianasari ◽  
Muhammad Zaini

The research was aimmed at studying (1) Determine the percentage of wheat flour,sweet corn and skin dragon fruit right in the manufacture of dry noodles that can beaccepted by consumers, and (2) Determine the influence of addition of sweet corn andrind of a dragon on the content of moisture, ash, protein, and preferences ofconsumers towards the parameters of color, flavor, elasticity, and sensory overall.The method used in this study is a factorial experimental design with two factors,namely the substitution treatment of sweet corn pasta and red dragon fruit skinextracts of the flour. Substitution of sweet corn used is 10%, 20% and 30%. Mediumaddition of dragon fruit peel extract of 5%, 10% and 15%. Each experiment carriedrepeat 3 times, so it will be acquired unit (unit) trial were 9 units trial. The dataobtained were tested with the test Barlett diversity and additional data with Tuckeytest. Furthermore, to see the value of the middle test treatment Significant Difference(LSD) at 5% level. The resulting dried noodles then analyzed the water content, ashprotein, the overall sensory test. Results from the study if seen from the test sensorypreferences overall, generally panelists prefer the treatment of sweet corn and dragonfruit with a concentration of 20%, 15% better than the taste, color and elasticity ofnoodles, while from the nutritional content of dried noodles sweet corn and dragonfruit SNI is in conformity with dry noodles.Keywords: Sweet corn, dragon fruit peel, dried noodles


2020 ◽  
Vol 7 (2) ◽  
pp. 107-113
Author(s):  
Inas Fadiyah ◽  
Iin Lestari ◽  
Robby Gus Mahardika

Rukam fruit (Flacourtia rukam) is one of the species spread in Indonesia, specifically Bangka Island. Rukam has a higher phenolic ratio than guava (Psidium guajava). Phenolic compounds have a major role as antioxidants, while antioxidants have the ability to fight free radicals. Therefore a study was conducted to examine the application of secondary metabolites and antioxidant bioactivity of the Flacourtia rukam species using the Microwave Assisted Extraction method. Rukam fruit extract is obtained by using the Microwave Assisted Extraction (MAE) method. While for the antioxidant test using the DPPH method. The test results of antioxidant activity of rukam fruit extract with ethanol solvent were obtained with IC50 value 47.7022 ppm and in rukam fruit extract with acetone solvent IC50 33.1702 ppm obtained using this antioxidant antioxidant powder was very strong.


Author(s):  
Ika Ristia Rahman

Background: UV lights are free radicals that can cause damage to the skin, such as redness, burning, pigmentation, and even cancer. Kenikir leaf purified extract (ETDK) and Tampoi fruit peel extract (EKBT) contain flavonoid compounds. Flavonoid compounds can be antioxidants and sunscreens due to the presence of chromophore groups that can absorb UV rays to reduce exposure to the skin. Objectives: This study aims to determine the antioxidant activity and the ability of sunscreen nano cream Purified extract of Kenikir leaves and Tampoi fruit peel extract. Material and metode:  Nanocream is made with 3 ETDTK-EKBT combination formulas, II ETDK formulas, III EKBT formulas. The antioxidant activity test was carried out using the DPPH (1,1-diphenyl-2-picrylhydrazyl) method and the sunscreen activity test using the UV-Vis spectrophotometric method to calculate the SPF value of the preparation (Mansur's method). Result: The results showed that the nano cream formula had a strong antioxidant activity with the per cent inhibition of formula I 78.28%, formula II 68.49%, and formula III 73.00%. The activity test results as a sunscreen formulation of purified extract nano cream from Kenikir leaves and nano cream from Tampoi fruit peel extract had extra protection ability with a sun-protecting factor value of 7 while the nano cream formula combined extract with an SPF value of 10 gave the maximum protection category. Conclusion: nano cream have potential as antioxidants and sunscreens.


2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Silaturahmi Silaturahmi ◽  
Zaidiyah Zaidiyah ◽  
Tengku Mia Rahmiati

The use of colorants in the dried noodle manufactures is an effort of product diversification. Besides of being used as a natural coloring agent, this peel extract is also used to improve nutritional value of the expected product. The purpose of this study was to determine the effect of red dragon fruit peel extract on the physical quality of dried noodle.  The study was conducted by using Completely Randomized Design (CRD) method with one factor, namely concentration of red dragon fruit peel extract (N1 = 10 ml, N2 = 15 ml, N3 = 20 ml, N4 = 25 ml, N5 = 30 ml).  The observations of its physical quality consisted of water absorption, solid loss during cooking, and organoleptic tests (aroma and color).  The best quality of dried noodle was obtained by using 30 ml red dragon fruit peel extract (N5) with physical properties, namely DSA levels of 351.92%, solid loss during cooking 4.78%, aroma 3.79 (like) and color 3.89 (like).


Author(s):  
Sri Wahdaningsih ◽  
Subagus Wahyuono ◽  
Sugeng Riyanto ◽  
Retno Murwanti

  Objective: Indonesia is a country which has various natural resources including medicinal plants. Among the plants, red dragon fruit is interesting to be studied. In this study, antioxidant activity of red dragon fruit peel (Hylocereus polyrhizus (F.A.C. Weber) Britton and Rose) isolate was tested using 2,2-diphenyl-1-picrylhydrazyl method.Methods: Isolation of active compounds was performed through the application of vacuum liquid chromatography and preparative thin-layer chromatography (TLC). Antioxidant activity was tested using both TLC and spectrophotometry.Result: Results revealed that the values of IC50 of isolate 1 and 2 were 2.952, 14 μg/mL and 25.635,95 μg/mL, respectively.Conclusion: Isolate of dragon fruit has antioxidant activity. The compound which results in antioxidant activity is terpenoid and steroid.


2021 ◽  
Vol 26 (2) ◽  
pp. 79-84
Author(s):  
I Putu Agus Hendra Wibawa ◽  
I Nyoman Lugrayasa ◽  
Sutomo Sutomo

Dillenia serrata Thunb.is a member of the Dillenia clan which is endemic to Sulawesi. D. serrata fruit is a seasonal fruit and can be used as a cooking ingredient as a sour taste, raw material for several food products such as candied fruit and syrup, and has the potential to be processed into chips and jam. Traditionally, the leaves and bark of D. serrata are also used by the local community as a sprue medicine, fever, wound medicine, treating swelling or inflammation and treating vomiting of blood. It is believed that there are still many untapped benefits from this plant. This study was conducted to determine the effectiveness of D. serrata fruit extract as an antimicrobial that causes disease in humans, and to determine its effectiveness as an antioxidant. The antioxidant test was carried out using the DPPH method while the antimicrobial test was carried out by the agar diffusion method (Kirby-Bauer). The ripe Dillenia fruit was extracted using methanol, the extract was then diluted in various concentrations for the DPPH test The results showed that the D. serrata extract had the ability as an antioxidant. The antioxidant activity of fresh fruit extracts was higher than that of dried fruit extracts. D. serrata extract is effective in inhibiting the growth of Pseudomonas aeruginosa, Staphylococcus aureus, and Streptococcus mutans bacteria.


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