用DPPH方法分离苯酚总酚含量和抗氧活性成分测试

M. Rizki, Anna Khumaira Sari, Dewi Kartika, Amalia Khairunnisa, Normaidah
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The total phenolic content of the n-hexane, ethyl acetate and aquadest fraction were 9.352 ± 0.113% w/w, ethyl acetate fraction 12.595 ± 0.415% w/w, and aquadest fraction 9.992 ± 0.485% w/w equivalent gallic acid, respectively. The n-hexane, ethyl acetate, and aquadest fractions showed IC50 values of 89.192 ± 2.91 ppm (strong), 64.754 ± 2.803 ppm (strong), and 82.247 ± 23.034 ppm (strong), respectively. 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引用次数: 0

摘要

红叶(阿托卡普integer)传统上被加里曼丹南部的人民用于治疗。酚类植物存在于淀粉提取物中,具有抗氧化剂的能力。无淀粉提取物的微量成分从未确定其总表现性和抗氧化酶酶。本研究旨在确定淀粉提取物中含有最高的酚含量和抗氧化剂活性的成分。研究开始于使用干燥柜、简单的花粉生成、成熟的提取过程、干燥柜的提取物干燥、盐乙醇和aquadest溶剂的点化和炼金术。总表型测定可与活体试剂folincioteu一起执行,并使用错误酸对照组。抗氧化剂活性使用基于IC50值和kuersetin的DPPH方法进行。总酚含量的派别n-heksan 9,352±0,113% b - b,醋酸纤维素乙醇成分12,595±0,415% b / b,派别aquadest 9,992±0,485% b / b错误ekivalen酸。n-heksan、醋酸纤维素乙醇成分和螺旋藻aquadest每个人都有自己的价值高达89.192±2,91草根阶层(强大),64.754±2,803草根阶层(强大),82.247±23,034草根阶层(强大)。这项研究得出的结论是,醋酸乙醇的总ph值和抗氧化物活性比蛋白酶提取物中的n-heksan和aquadest的提取物浓度最高。Cempedak (Artocarpus integer)的传统用法是由加里曼丹南部的人们共同使用的。被关在cempedak leaf extract的phenc group被称为反氧剂。cempedak leaf extract的股份从未确定为总油性和抗氧化剂行为。这项研究可以确定淀粉的成分暴露在酚和抗氧化剂行为的最上层。研究始于通过一个干树叶的柜子、simplicia火药的准备、大规模撤离、extract排水和与n-hexane、ethyl acetate和美国solvents的蒸馏。总phenolic的决定被死胎和gallic acid合并为标准的综合。反氧化剂活动是采用基于IC50值的DPPH方法并与quercetin进行比较的。n-hexane总酚内容》,乙基醋酸和aquadest fraction是9352±醋酸0.113% w / w,乙基fraction 12595±0.415% w / w,和aquadest fraction 9992±0.485% w / w,高卢哪里酸,respectively。《n-hexane、乙基醋酸和aquadest fractions那里螺旋藻的价值观89192±2 . 91 mtc(合编),64754±2.803 mtc(合编),和82247±23034 mtc(合编),respectively)。这项研究的结论是,ethyl acection的强度和抗氧化性行为与cempedak leaf extract的抗氧化性和抗氧化性行为的强度最高。
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Penetapan Kadar Fenolik Total dan Uji Aktivitas Antioksidan Fraksi dari Ekstrak Etanol Daun Cempedak (Artocarpus integer) dengan Metode DPPH
Daun cempedak (Artocarpus integer) dimanfaatkan secara tradisional oleh masyarakat Kalimantan Selatan dalam pengobatan. Golongan fenolik terkandung dalam ekstrak daun cempedak dan memiliki kemampuan sebagai antioksidan. Fraksi dari ekstrak daun cempedak belum pernah ditetapkan kadar fenolik total dan akivitas antioksidannya. Penelitian ini bertujuan untuk mengetahui fraksi dari ekstrak daun cempedak yang mengandung kadar fenolik dan aktivitas antioksidan tertinggi. Penelitian dimulai dengan pengeringan daun segar menggunakan lemari pengering, pembuatan serbuk simplisia, proses ekstraksi secara maserasi, pengeringan ekstrak dengan lemari pengering, dan proses fraksinasi dengan pelarut n-heksan, etil asetat dan aquadest. Penetapan kadar fenolik total dapat dilakukan dengan reagen Folin-Ciocalteu dan menggunakan baku pembanding asam galat. Aktivitas antioksidan dilakukan menggunakan metode DPPH berdasarkan nilai IC50 dan dengan pembanding kuersetin. Kadar fenolik total pada fraksi n-heksan 9,352 ± 0,113% b/b, fraksi etil asetat 12,595 ± 0,415% b/b, dan fraksi aquadest 9,992 ± 0,485% b/b ekivalen asam galat. Fraksi n-heksan, etil asetat, dan aquadest masing-masing memiliki nilai IC50 sebesar 89,192 ± 2,91 bpj (kuat), 64,754 ± 2,803 bpj (kuat), dan 82,247 ± 23,034 bpj (kuat). Kesimpulan dari penelitian ini bahwa fraksi etil asetat memiliki kadar fenolik total tertinggi dan aktivitas antioksidan paling kuat dibandingkan fraksi n-heksan dan fraksi aquadest dari ekstrak daun cempedak.   Cempedak (Artocarpus integer) leaves are traditionally used by people in South Kalimantan as medicine. The phenolic group contained in cempedak leaf extract has known as an antioxidant. The fraction of cempedak leaf extract has never been determined for total phenolic content and antioxidant activity. This study aimed to determine the fraction of cempedak leaf extract that contains the highest levels of phenolic and antioxidant activity. The study started with drying of fresh leaves using a drying cabinet, simplicia powder preparation, maceration extraction, extract drying, and fractionation with n-hexane, ethyl acetate and aquadest as solvents. Determination of total phenolic content was obtained with Folin-Ciocalteu reagent and gallic acid as a standard for comparison. Antioxidant activity was measured using the DPPH method based on the IC50 value and comparison with quercetin. The total phenolic content of the n-hexane, ethyl acetate and aquadest fraction were 9.352 ± 0.113% w/w, ethyl acetate fraction 12.595 ± 0.415% w/w, and aquadest fraction 9.992 ± 0.485% w/w equivalent gallic acid, respectively. The n-hexane, ethyl acetate, and aquadest fractions showed IC50 values of 89.192 ± 2.91 ppm (strong), 64.754 ± 2.803 ppm (strong), and 82.247 ± 23.034 ppm (strong), respectively. The conclusion of this study was that the ethyl acetate fraction had highest total phenolic content and strongest antioxidant activity compared to n-hexane and aquadest fraction from cempedak leaf extract.
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