scholarly journals PENGARUH JENIS PELARUT PADA EKSTRAKSI MENGGUNAKAN GELOMBANG ULTRASONIK TERHADAP AKTIVITAS ANTIOKSIDAN EKSTRAK KULIT BUAH LEMON (Citrus limon (Linn.) Burm F.)

2018 ◽  
Vol 7 (4) ◽  
pp. 213
Author(s):  
Melia Verdiana ◽  
I Wayan Rai Widarta ◽  
I Dewa Gede Mayun Permana
Keyword(s):  
Antioxidant Activity ◽  
Citrus Limon ◽  
Experiment Data ◽  
Effect Of Solvent ◽  
Lemon Peel ◽  
Randomized Design ◽  
Ic50 Value ◽  
Completely Randomized Design ◽  
The Right ◽  
Peel Extract

This study aims to determine the effect of solvent types on antioxidant activity of lemon peel (Citrus limon (Linn.) Burm F.) extract and to obtain the right solvent types with the highest antioxidant activity of lemon peel extract. The experimental design used in this research  was a completely randomized design with the treatment of solvent types (aquades, acetone 70%, ethanol 70% and methanol 70%). The treatment  was repeated four times to obtain 16 units of the experiment. Data were analyzed with analysis of variance (ANOVA) and followed by Duncan test. The result showed that the best treatment was obtained extract with ethanol 70% solvent with antioxidant activity was 52.72% and the IC50  value 471.33 mg/L, followed by yield was 37.68%, vitamin C was 227.90 mg AAE/g extract and total flavonoid was 7.14 mg QE/g extract.

scholarly journals PENGARUH JENIS ASAM DAN pH PELARUT TERHADAP KARAKTERISTIK PEKTIN DARI KULIT LEMON (Citrus limon)

2018 ◽  
Vol 7 (4) ◽  
pp. 192
Author(s):  
Ni Kadek Yuli Kesuma ◽  
I Wayan Rai Widarta ◽  
I Dewa Gede Mayun Permana
Keyword(s):  
Citric Acid ◽  
Ash Content ◽  
Citrus Limon ◽  
Equivalent Weight ◽  
Lemon Peel ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Esterification Degree ◽  
The Right

This research was conducted with the aim to know the influence of acid and solvent pH on the extraction of pectin from lemon peel and find the right kind of acid and solvent pH to produce pektin of lemon peel with the best characteristics. The experimental design used in this research was a factorial Completely Randomized Design (CRD), which consisted of two factors. The first factor was a type of acid consisting of chloride acid and citric acid. The second factor was a solvent pH consisting of a pH 1,5; 2; 2,5 and 3. All treatments were repeated twice to obtain 16 units of experiments. The data were analyzed with analysis of variance and followed by Duncan test. The best results showed that extraction using chloride acid and pH of solvent 1,5 resulted in 22,35% of pectin yield, 11, 55% of water content, 22,11% of ash content, 1052,47% of equivalent weight, 10,81% of methoxyl content, 78,07% of galacturonic content, and 78,58% of esterification degree.

scholarly journals PENGARUH JENIS PELARUT TERHADAP AKTIVITAS ANTIOKSIDAN EKSTRAK MENIRAN (Phyllanthus niruri L.)

2020 ◽  
Vol 9 (4) ◽  
pp. 458
Author(s):  
Rizky Amalia Rachmawati ◽  
Ni Wayan Wisaniyasa ◽  
I Ketut Suter
Keyword(s):  
Antioxidant Activity ◽  
Total Phenol ◽  
Total Phenol Content ◽  
Flavonoid Content ◽  
Phyllanthus Niruri ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Four Levels ◽  
Effect On Yield ◽  
The Right

This study was conducted to determine the effect of different solvents on the antioxidant activity of gale of the wind extract and to find out the right type of solvent used to extract gale of the wind with the highest antioxidant activity using maceration method. The experimental design used in this study was a completely randomized design (CRD) with a type of solvent as a treatment. The treatment consisting of four levels, namely methanol, ethanol, acetone, isopropanol. All treatments were repeated four times so that they were obtained 16 experimental units. The data obtained were analyzed by variance and if the treatment had significant effect followed by Duncan test. The results showed that the type of solvent treatment had a very significant effect on yield, total phenol, total flavonoids, total tannin, and antioxidant activity (IC50). The results showed that acetone solvent had the best treatment which produced a yield of 22.58%, total phenol content of 188.77 mg GAE/g, total flavonoid content of 247.60 mg QE/g, total tannin content of 297.51mg TAE/g, and antioxidant activity (IC50) of 15.19 ppm.

scholarly journals Pengaruh Perbandingan Terigu Dengan Puree Labu Kuning (Cucurbita moschata) Terhadap Karakteristik Kue Nastar

2021 ◽  
Vol 10 (1) ◽  
pp. 56
Author(s):  
I Gede Priyatna Putra ◽  
Putu Timur Ina ◽  
Ni Made Indri Hapsari Arihantana
Keyword(s):  
Antioxidant Activity ◽  
Water Content ◽  
Wheat Flour ◽  
Cucurbita Moschata ◽  
Carotene Content ◽  
Acceptance Ratio ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
The Right ◽  
Range Test

This research aims to determine the effect of the comparison of wheat flour with puree of pumpkin on the characteristics of nastar cake and to find out the right comparison of wheat flour with puree of pumpkin to produced nastar cake with the best characteristics. The experimental design used in this research was a Completely Randomized Design (CRD) with a comparison of wheat flour and puree of pumpkin consisting of 5 treatments namely 100% : 0%, 95% : 5%, 90% : 10%, 85% : 15%, and 80% : 20%. All treatments were repeated four times so that they were obtained 20 experimental units. The data obtained were analyzed by variance and if the treatment had significant effect then followed by Duncan’s Multiple Range Test. The results showed that the comparison of wheat flour and puree of pumpkin had a significant effect on the water content, total carotene content, antioxidant activity (?-carotene bleaching), color, texture, flavor, taste, and overall acceptance. Ratio of 80% wheat flour and 20% puree of pumpkin had the best characteristics with water content of 2.55%, ash content of 0.75%, ?-carotene content of 4.63 mg/100g, antioxidant activity of 1.71 mg/ml, color liked, texture rather liked, flavor liked, taste liked, and overall acceptance liked.

scholarly journals PENGARUH RASIO PELARUT TERHADAP EKSTRAKSI DARI KULIT BUAH NAGA MERAH (Hylocereus polyrhizus)

KOVALEN ◽  
2019 ◽  
Vol 5 (3) ◽  
pp. 280-289
Author(s):  
Amalia Noviyanty ◽  
Chitra Anggriani Salingkat ◽  
Syamsiar Syamsiar
Keyword(s):  
Solvent Ratio ◽  
Fruit Peel ◽  
Extract Yield ◽  
Randomized Design ◽  
Fruit Skin ◽  
Dragon Fruit ◽  
Ic50 Value ◽  
Ic50 Values ◽  
Completely Randomized Design ◽  
Peel Extract

This study aims to determine the effect of the ratio of solvents to extract yield, phenolics total and IC50 values ​​of red dragon fruit peel and also get the optimal solvent ratio to obtain extract yield, phenolics total and the highest or best IC50 values ​​of red dragon fruit peel extracts. The solvent ratio used there are 6 levels of the ratio: 2:1; 3:1; 4:1; 5:1; 6:1 and 7:1 (v/w). The data obtained were analyzed using a Completely Randomized Design that was applied to observations of extract yield, phenolics total and IC50 values, if the treatment had a very significant or significant effect followed by continued Tukey HSD test at 1% or 5% level. The results showed that the solvent ratio very significantly affected the extract yield, phenolics total and IC50 value of red dragon fruit peel extract.  The solvent ratio of 4:1 (v/w) produced extract yield, phenolics total and IC50 values the highest or best i.e  26.22%, 71.56 ppm, and 124.62 ppm. Keywords : IC50, the red dragon fruit skin, solvent ratio, phenolics total

scholarly journals Pengaruh Jenis Pelarut Terhadap Aktivitas Antioksidan Ekstrak Daun Kejompot (Crassocephalum crepidioides) Menggunakan Metode Maserasi

2021 ◽  
Vol 10 (1) ◽  
pp. 67
Author(s):  
Maria Christinela Domithesa ◽  
I Nengah Kencana Putra ◽  
Anak Agung Istri Sri Wiadnyani
Keyword(s):  
Antioxidant Activity ◽  
Vitamin C ◽  
Design Method ◽  
Total Flavonoid ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
The Right ◽  
Range Test ◽  
Treatment Water

This study aims to determine the effect of various solvent towards antioxidant activity of kejompot (crassocephalum crepioides) extract and to know the right solvent to obtained extract with the highest antioxidant activity. This study used a Completely Randomized Design Method with 4 treatment (water, methanol 70%, ethanol 70%, acetone 70%,) using maseration method. The treatment was repeated four times to obtain 16 experimental units. If there was a significant effect on the observed parameters, then followed by Duncan multipple range test. The result showed that the treatment significantly effected (P<0.05) on each of parameters such as : yield, tanin total, flavonoid, vitamin C, antioxidant activity. This study showed that methanol 70% as the best treatment that obtained yield, tannin, flavonoid, Vitamin C and antioxidant activity respectively 18.76 %, 1.05 mg TAE/g, 7.59 mg QE/g, 8.68 mg AAE/g, and 103.1 ppm antioxidant activity based on IC50  .

scholarly journals The Effect Of Lemon (Citrus Limon L.) Extract On Mortality Of Aedes Sp. and Potential As Repellent

2020 ◽  
Vol 5 (02) ◽  
pp. 50-56
Author(s):  
Suharno Zen ◽  
Agus Sutanto ◽  
Afiatur Rohmah
Keyword(s):  
The Body ◽  
Citrus Limon ◽  
Lemon Peel ◽  
Randomized Design ◽  
Treatment Dose ◽  
Significant Difference ◽  
Phytochemical Compounds ◽  
Difference Test ◽  
One Way Anova ◽  
Peel Extract

Lemon (Citrus limon L.) is a plant with a peel type that contains phytochemical compounds namely flavonoids, terpenoids, tannins and limonenes that can be used as plant-based insecticides. The contents of these chemical compounds have the ability to kill mosquitoes, and act as respiratory poisons and stomach poisons for the mosquitoes. The purpose of this study was to determine the effect of the extract of lemon peel (Citrus limon L) On the mortality of Aedes sp. and to determine its potential as a repellent. This type of research used in thisstudy was an experiment using a completely randomized design study (CRD) which was carried out using 3 variations of the treatment dose of lemon peel extract (Citrus limon L) namely 25%, 27.5%, and 30%and controls (+) and (-). Data collection was carried out by looking at and recording mortality / deaths from Aedes sp. after being given treatment and observing mosquitoes on the body of mice and counting the number of mosquitoes that using the Protection Power formula. Data were statistically tested using One Way Anova and continued with LSD (Least Significant Difference) test. The results obtained by the value of Fcount ˃ table is 0.484 at the level of α = 0.05 so that H0 is rejected and H1 is accepted. This means that there is a significantinfluence of each treatment. The best effective dose is 30% with 50 mosquitoes dead. The highest protection power at a concentration of 30% was 97.3%, while the lowest protective power at a concentration of 25% was 77.1%.

scholarly journals Pengaruh Penambahan Bubuk Jahe Emprit (Zingiber officinale var. Amarum) Terhadap Karakteristik Teh Celup Herbal Daun Ciplukan (Physalis angulata L.)

2021 ◽  
Vol 10 (1) ◽  
pp. 44
Author(s):  
I Gede Widiyana ◽  
Ni Made Yusa ◽  
I Made Sugitha
Keyword(s):  
Antioxidant Activity ◽  
Bitter Taste ◽  
Zingiber Officinale ◽  
Tea Leaves ◽  
Herbal Tea ◽  
Randomized Design ◽  
Ginger Powder ◽  
Physalis Angulata ◽  
Completely Randomized Design ◽  
The Right

This study aims to determine the effect of the addition of emprit ginger powder and the right addition to getting the best ciplukan leaf herbal characteristics. The design used in this study was a Completely Randomized Design with the treatment of the addition of emprit ginger powder consisting of 5 levels, namely 0%, 10%, 20%, 30%, and 40%. This study was repeated three times to obtain 15 experimental units. The data obtained were analyzed by analysis of variance and if the treatment had a significant effect it was followed by Duncan's Multiple Range (DMRT) test. The results showed that ciplukan leaf herbal tea with the addition of 20% emprit ginger powder was the best treatment with the criteria of water content value of 7.84%, total phenol 1.18 mgGAE/g, total flavonoid 0.56 mgQE/g, antioxidant activity 58.02%, IC50 812.96 ppm, yellowish-brown color, somewhat distinctive flavor of ciplukan tea leaves and somewhat dislike, rather bitter taste, and overall rather dislike reception.

scholarly journals Pengaruh Jenis Pelarut Terhadap Aktivitas Antioksidan Ekstrak Cair Daun Turi (Sesbania grandiflora)

2020 ◽  
Vol 9 (2) ◽  
pp. 242
Author(s):  
Jevon Misael Gerald Masengi ◽  
Gusti Ayu Kadek Diah Puspawati ◽  
A.A. Istri Sri Wiadnyani
Keyword(s):  
Antioxidant Activity ◽  
Vitamin C ◽  
Total Flavonoid ◽  
Solvent Treatment ◽  
Effect Of Solvent ◽  
Sesbania Grandiflora ◽  
Liquid Extract ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Range Test

The purpose of this study was to determine the effect of solvent types on antioxidant activity of turi (Sesbania grandiflora) leaves liquid extract and to determine the compatible solvent types which have the highest antioxidant activity of turi leaves liquid extract. The research used a completely randomized design with the treatment of solvent types consisting of 4 level which is: aquadest; acetone 70%; methanol 70%; and ethanol 70%. The treatment was repeated four times so that they were obtained 16 experiment units. The data was analyzed with analysis of variance and if the treatment had a significant effect followed by a Duncan's Multiple Range Test. The results showed the type of solvent treatment had a significant effect on antioxidant activity, total flavonoid, total tannin, and vitamin C content. The best treatment was obtained from turi leaves liquid extract using acetone 70% solvent which had the highest antioxidant activity of 75.71% with the value of IC50 269.67, total flavonoid 0.185 mg QE/g material, total tannin 0.013 mg TAE/g material and vitamin C content 0.45 mg AAE/ g material. Keywords : antioxidant activity, solvent types, turi leaves.

scholarly journals PENGARUH WAKTU MASERASI TERHADAP AKTIVITAS ANTIOKSIDAN EKSTRAK KULIT BUAH JERUK LEMON (Citrus limon Linn)

2018 ◽  
Vol 7 (3) ◽  
pp. 102
Author(s):  
Dyta Aprida Asendy ◽  
I Wayan Rai Widarta ◽  
Komang Ayu Nocianitri
Keyword(s):  
Antioxidant Activity ◽  
Vitamin C ◽  
Extraction Yield ◽  
Total Phenol ◽  
Citrus Limon ◽  
Total Flavonoids ◽  
Lemon Peel ◽  
Peel Extract

This research aimed to find effect of maceration time on antioxidant activity of lemon peel extract and to knew the best maceration time with highest antioxidant activity of lemon peel extract. This study used a Randomized Completly Design with treatment of maceration time of 6 levels: 18 hours, 24 hours, 30 hours, 36 hours, 42 hours and 48 hours. The experiment was repeated in three replication, so that 18 experimental units were obtained. The data were analyzed by ANOVA and then continued with DMRT. The results showed that the treatment of maceration time had significant effect on extraction yield, vitamin C, total phenol, total flavonoids and antioxidant activity of lemon peel extract. The best treatment was 36 hours with extraction yield was 26.96%, vitamin C was 5.22 mg AA/g, total flavonoids was 69.64 mg QE/g, total phenol was 16.73 mg GAE /g and antioxidant activity was 94.08%.

scholarly journals PENGARUH JENIS PELARUT DAN RASIO BAHAN DENGAN PELARUT TERHADAP KANDUNGAN SENYAWA FENOLIK DAN AKTIVITAS ANTIOKSIDAN EKSTRAK BIJI ALPUKAT (PERSEA AMERICANA MILL.)

2018 ◽  
Vol 7 (2) ◽  
pp. 22
Author(s):  
Ginanjar Rifai ◽  
I Wayan Rai Widarta ◽  
Komang Ayu Nocianitri
Keyword(s):  
Antioxidant Activity ◽  
Experimental Design ◽  
Analysis Of Variance ◽  
Persea Americana ◽  
Total Phenolic ◽  
Experiment Data ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Avocado Seed

This research was conducted in order to determine the type of solvent and ratio between sample and solvent to produce extract avocado seed with the highest antioxidant activity. The experimental design used in this research was a factorial completely randomized design which consisted of two factors. The first factor was the type of solvent consisting of ethanol, methanol, and acetone. The second factor was ratio between sample and solvent of 1:5, 1;10, and 1:15. The treatment was repeated three time to obtain 27 units of the experiment. Data were analyzed with analysis of variance, followed by Duncan test. The results show that the solvent of acetone and ratio between sample and solvent of 1:15 was highest antioxidant activity with total phenolic 803.60 mg/100g, IC50 was 540.95 ppm, and yield 41.36%.

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