Phytochemical Screening, Relationship of Total Phenolic with Antioxidant Activity Of Ethanol and Methanol Extracts of Kesambi (Schleichera oleosa (Lour.) Oken) Bark

Nur Alim, T. Hasan, R. Rusman, Jasmiadi Jasmiadi, Z. Zulfitri
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引用次数: 1

Abstract

Phenolic content has a role in antioxidant activity. The higher the phenolic content of a test sample, the higher the antioxidant activity, which is indicated by a smaller IC50 value. Methanol and 70% ethanol are solvents that have been proven to be widely used to extract total plant phenolic compounds. This study aims to determine the phytochemical content and the relationship of total phenolic content with antioxidant activity of ethanol and methanol extract of Schleichera oleosa (Lour.) Oken) bark using UV-Vis spectrophotometry. Schleichera oleosa (Lour.) Oken was extracted by maceration using 70% ethanol and methanol as solvent. Qualitative analysis of phytochemical compounds using specific reagents, analysis of total phenolic content, and antioxidant activity test using the DPPH method using UV-Vis spectrophotometry at 764 nm and 515 nm, respectively. The results of the qualitative test showed that the ethanol and the methanol extract was positive for alkaloids, flavonoids, and phenolics. The results of the analysis of total phenolic content and antioxidant activity showed that the 70% ethanol extract had a total phenolic content of 7.6829 mg gallic acid equivalent/g with IC50 28.5240 ppm and the methanol extract had a total phenolic content of  9.2057 mg gallic acid equivalent/g with IC50 1.6191 ppm. From these results, it was concluded that the higher the total phenolic content, the higher the antioxidant activity.Keywords: Antioxidant; Schlechera oleosa (Lour.) Oken.; total phenolic Skrining Fitokimia dan Hubungan Kadar Fenolik Total dengan Aktivitas Antioksidan Ekstrak Etanol dan Metanol Kulit Batang Kesambi (Schleichera oleosa (Lour.) Oken)ABSTRAKKadar fenolik memiliki peran terhadap aktivitas antioksidan. Semakin tinggi kadar fenolik suatu sampel uji maka aktivitas antioksidannya juga semakin tinggi, yang ditunjukkan dengan nilai IC50 yang lebih kecil. Pelarut metanol dan etanol 70% merupakan pelarut yang telah terbukti banyak digunakan untuk menarik senyawa fenolik total tanaman.  Penelitian ini bertujuan untuk menentukan kandungan fitokimia, hubungan kadar fenolik total dengan aktivitas antioksidan ekstrak etanol dan ekstrak metanol kulit batang kesambi (Schleichera oleosa (Lour.) Oken) menggunakan spektrofotometri UV-Vis. Kulit batang kesambi (Schleichera oleosa (Lour.) Oken) diekstraksi dengan cara maserasi menggunakan pelarut etanol 70% dan pelarut metanol. Analisis kualitatif senyawa fitokimia menggunakan pereaksi spesifik, analisis kadar fenolik total dan uji aktivitas antioksidan dengan metode DPPH menggunakan spektrofotometri UV-Vis masing-masing pada panjang gelombang 764 nm dan 515 nm. Hasil uji kualitatif menunjukkan bahwa ekstrak etanol dan ekstrak metanol kulit batang kesambi (Schleichera oleosa (Lour.) Oken) positif mengandung alkaloid, flavonoid dan fenolik. Hasil analisis kadar fenolik total dan uji aktivitas antioksidan menunjukkan bahwa ekstrak etanol 70% memiliki kadar fenolik total sebesar 7,6829  mgGAE/g ekstrak dengan nilai IC50 sebesar 28,5240 ppm dan esktrak metanol memiliki kadar fenolik total sebesar 9,2057 mgGAE/g ekstrak dengan nilai IC50 sebesar 1,6191 ppm. Dari hal tersebut disimpulkan bahwa semakin tinggi kadar fenolik total maka semakin tinggi pula aktivitas antioksidannya.Kata kunci: Antioksidan; fenolik total; Schlechera oleosa (Lour.) Oken
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克山比(Schleichera oleosa, Lour)乙醇和甲醇提取物的植物化学筛选及总酚与抗氧化活性的关系奥肯)树皮
酚含量对抗氧化活性有影响。样品中酚类物质含量越高,抗氧化活性越高,其IC50值越小。甲醇和70%乙醇是已被证明广泛用于提取植物总酚类化合物的溶剂。本研究旨在测定石竹醇提物和甲醇提物的植物化学成分及其总酚含量与抗氧化活性的关系。用紫外-可见分光光度法测定树皮。Schleichera oleosa (Lour)以70%乙醇和甲醇为溶剂,浸渍法提取Oken。采用专用试剂对植物化学成分进行定性分析,采用DPPH法对总酚含量进行分析,采用紫外-可见分光光度法分别在764 nm和515 nm处进行抗氧化活性测试。定性分析结果表明,乙醇和甲醇提取物对生物碱、黄酮类化合物和酚类物质均呈阳性。总酚含量及抗氧化活性分析结果表明,70%乙醇提取物总酚含量为7.6829 mg没食子酸当量/g, IC50为28.5240 ppm;甲醇提取物总酚含量为9.2057 mg没食子酸当量/g, IC50为1.6191 ppm。综上所述,总酚含量越高,抗氧化活性越强。关键词:抗氧化剂;石蜡(石蜡)奥肯。总酚类物质:总酚类物质、总酚类物质、总酚类物质、总酚类物质、总酚类物质【摘要】kadar fenliklikiliki是一种具有抗抑郁活性的记忆活动。2 . Semakin tinggi kadar fenolik suatu sample uji maka aktivitas antioksidannya juga Semakin tinggi, yang ditunjukkan dengan nilai IC50 yang lebih kecil。Pelarut甲醇和乙醇70% merupakan Pelarut yang telah terbukti banyak digunakan untuk menarik senyawa fenolik总tanaman。(1)总密度、总密度、总密度、总密度、总密度、总密度、总密度、总密度、总密度、总密度。蒙古纳坎紫外-可见分光光度法。Kulit batang kesambi (Schleichera oleosa)奥肯)diekstraksi dengan卡拉maserasi menggunakan pelarut etanol 70%丹pelarut metanol。用紫外-可见分光光度法、紫外-可见分光光度法、紫外-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法、紫外光-可见分光光度法。【翻译】【翻译】【翻译】【翻译】阳性成分为孟脑洞生物碱、黄酮类丹酚。Hasil分析kadar fenolik总油脂油脂7,6829 mgGAE/g ekstrak dengan nilai IC50 sebesar 28,5240 ppm,而kasktrak甲醇memiliki kadar fenolik总油脂9,2057 mgGAE/g ekstrak dengan nilai IC50 sebesar 1,6191 ppm。达里哈尔·特朗普(darhal terterbut disimpulse)——他似乎在做一件好事,而不是在做一件好事——总让一件好事变成一件好事。Kata kunci: Antioksidan;fenolik总;石蜡(石蜡)奥肯
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