Phytochemical Screening, Total Phenolic and Antioxidant Activity of Numerous Extracts from Leaves and Bark of <i>Bauhinia rufescens</i>Lam  

作　　者：Seid Ali Mahamat Niang Lahat Ayessou Nicolas Cyrille Cisse Mady Diop Codou Mar Seid Ali Mahamat;Niang Lahat;Ayessou Nicolas Cyrille;Cisse Mady;Diop Codou Mar(Adam Barka University, Abeche, Tchad;Water, Energy, Environment and Industrial Processes Laboratory (LE3PI), ESP-UCAD, Dakar, Sénégal;Center for Studies on Food Safety and Functional Molecules (CESAM-RESCIF), ESP-UCAD, Dakar, Sénégal)

机构地区：[1]Adam Barka University, Abeche, Tchad [2]Water, Energy, Environment and Industrial Processes Laboratory (LE3PI), ESP-UCAD, Dakar, Sénégal [3]Center for Studies on Food Safety and Functional Molecules (CESAM-RESCIF), ESP-UCAD, Dakar, Sénégal

出　　处：《Food and Nutrition Sciences》2021年第6期544-556,共13页食品与营养科学（英文）

摘　　要：Researches for natural antioxidants that play an important role in the prevention of diseases linked to free radicals ha</span><span style="font-family:Verdana;">ve</span><span style="font-family:Verdana;"> increased in recent years. In this study, antioxidant activity of </span><span style="font-family:Verdana;"><i></span><i><span style="font-family:Verdana;">Bauhinia rufescens</span></i><i><span style="font-family:Verdana;"></i></span></i><i><span style="font-family:""> </span></i><span style="font-family:""><span style="font-family:Verdana;">Lam which is a medicinal plant</span><i> </i><span style="font-family:Verdana;">was investigated</span><i><span style="font-family:Verdana;">.</span></i><span style="font-family:Verdana;"> The methanol extract, acetone extract and water extract of leaf and trunk bark had antioxidant activity. Three methods were used: 2,2-diphenyl-1picryl-hydrazyl (DPPH), 2,2</span></span><span style="font-family:Verdana;">’</span><span style="font-family:Verdana;">-Azino-bis-(3-ethylbenzoth</span><span style="font-family:""> </span><span style="font-family:Verdana;">iazoline-6-sulfonic acid) (ABTS) and ferric ion reducing power (FRAP) by spectrophotometr</span><span style="font-family:Verdana;">y</span><span style="font-family:Verdana;">. Phytochemical screening was carried out followed by the quantification of the total phenolic by the Folin-Ciocalteu method. The analysis of variance (ANOVA) with the STATISTICA 7.1 software revealed significant differences (p</span><span style="font-family:""> </span><span style="font-family:Verdana;"><</span><span> </span><span style="font-family:Verdana;">0.05). Percentage inhibition (PI) and IC</span>_{<span style="font-family:Verdana;">50</span>}<span style="font-family:""><span style="font-family:Verdana;"> of the extracts were obtained using the OriginPro 8.5 software. These tests show that the bark is as rich in total phenolic as the leaves. The DPPH test shows that at 2.5 mg/ml, the bark and the leave have similar activity. Bark has a peResearches for natural antioxidants that play an important role in the prevention of diseases linked to free radicals ha</span><span style="font-family:Verdana;">ve</span><span style="font-family:Verdana;"> increased in recent years. In this study, antioxidant activity of </span><span style="font-family:Verdana;"><i></span><i><span style="font-family:Verdana;">Bauhinia rufescens</span></i><i><span style="font-family:Verdana;"></i></span></i><i><span style="font-family:""> </span></i><span style="font-family:""><span style="font-family:Verdana;">Lam which is a medicinal plant</span><i> </i><span style="font-family:Verdana;">was investigated</span><i><span style="font-family:Verdana;">.</span></i><span style="font-family:Verdana;"> The methanol extract, acetone extract and water extract of leaf and trunk bark had antioxidant activity. Three methods were used: 2,2-diphenyl-1picryl-hydrazyl (DPPH), 2,2</span></span><span style="font-family:Verdana;">’</span><span style="font-family:Verdana;">-Azino-bis-(3-ethylbenzoth</span><span style="font-family:""> </span><span style="font-family:Verdana;">iazoline-6-sulfonic acid) (ABTS) and ferric ion reducing power (FRAP) by spectrophotometr</span><span style="font-family:Verdana;">y</span><span style="font-family:Verdana;">. Phytochemical screening was carried out followed by the quantification of the total phenolic by the Folin-Ciocalteu method. The analysis of variance (ANOVA) with the STATISTICA 7.1 software revealed significant differences (p</span><span style="font-family:""> </span><span style="font-family:Verdana;"><</span><span> </span><span style="font-family:Verdana;">0.05). Percentage inhibition (PI) and IC</span>_{<span style="font-family:Verdana;">50</span>}<span style="font-family:""><span style="font-family:Verdana;"> of the extracts were obtained using the OriginPro 8.5 software. These tests show that the bark is as rich in total phenolic as the leaves. The DPPH test shows that at 2.5 mg/ml, the bark and the leave have similar activity. Bark has a pe

关 键 词：Bauhinia rufescens Lam Total Phenolic Antioxidant Activity 

分 类 号：R28[医药卫生—中药学]