Screening of antioxidant and antimicrobial activities of Caesalpinia bonducella Flem., leaves (Caesalpiniaceae)

Gupta, Malaya; Mazumdar, UK; Kumar, Ramanathan Sambath; Gomathi, Periyasamy; Rajeshwar, Y.; Kumar, T. Siva

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자료유형: 학술저널

저자정보: Gupta, Malaya (Division of Pharmacology and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University) Mazumdar, UK (Division of Pharmacology and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University) Kumar, Ramanathan Sambath (Division of Pharmacology and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University) Gomathi, Periyasamy (Division of Pharmacology and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University) Rajeshwar, Y. (Division of Pharmacology and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University) Kumar, T. Siva (Division of Pharmacology and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University)

저널정보: 경희한의학연구센터 Oriental pharmacy and experimental medicine Oriental pharmacy and experimental medicine 제4권 제3호

발행연도: 2004.1

수록면: 197 - 209 (13page)

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The study was aimed at evaluating the antioxidant and antimicrobial activities of methanol extract of Caesalpinia bonducella leaves (MECB) (Family: Caesalpiniaceae). The effect of MECB on antioxidant activity, reducing power, free radical scavenging (DPPH radical, nitric oxide radical, superoxide anion radical, hydroxyl radical and hydrogen peroxide radical scavenging), total phenolic content and antimicrobial activities were studied. The antioxidant activity of MECB increased in a dose dependent manner. About 50, 100, 250 and 500 g of MECB showed 53.4, 61.2, 69.1 and 76.2 % inhibition respectively on peroxidation of linoleic acid emulsion. Like antioxidant activity, the effect of MECB on reducing power increased in a dose dependent manner. The free radical scavenging activity of MECB was determined by DPPH radical scavenging method. The potency of this activity was increased with increased amount of extract. MECB was found to inhibit the nitric oxide radicals generated from sodium nitroprusside $(IC_{50}\;=\;102.8\;g/ml)$ whereas the $IC_{50}$ value of curcumin was 20.4 g/ml. Moreover, the MECB was found to scavenge the superoxide generated by photoreduction of Riboflavin. MECB was also found to inhibit the hydroxyl radical generated by Fenton reaction, where the $IC_{50}$ value is 104.17 g/ml compared with catechin 5 g/ml, which indicates the antioxidant activity of MECB. The MECB capable of scavenging hydrogen peroxide in a concentration-dependent manner. The amounts of total phenolic compounds were also determined. Antimicrobial activities of MECB were carried out using disc diffusion methods with five Gram positive, four Gram negative and four fungal species. The results obtained in the present study indicate that MECB leaves are potential source of natural antioxidant and antimicrobial agents.

#Caesalpinia bonducella #Antioxidant activity #Free radical scavenging #DPPH test #Antimicrobial

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Gupta, Malaya

소속기관 Department of Pharmaceutical Technology, Jadavpur University

주요연구분야 의약학 > 한의학

논문수 5 이용수 1

Mazumdar, UK