Evaluation of Natural Pigments as Antioxidant and Antibacterial Agents from Tagetes Erecta Flowers Extracts

Abstract

The present work is designed to evaluate the antioxidant, antibacterial activity and (TPC) total phenolic content of Tagetes erecta flowers extracts. Antioxidant potential of flowers extracts was examined by applying three different methods. Antibacterial test was determined against gram positive and gram negative bacterium. The ethyl acetate extract had the greater phenolic concentration of 48.2 mg/g GAE followed by methanol extract which was 42.5 mg/g GAE and hexane extract 36.4 mg/g GAE. The ethyl acetate extract was found to be most effective in all the antioxidant methods in correlation with the TPC value. Moreover, all the flowers extracts are significantly effective in both Gram negative and Gram positive bacterium. Tagetes erecta flowers are hopefully considered as a promising source of natural pigments with a scope towards the alternative therapy for treatment of various health problems.

Nutritional Profiling, Phytochemical Composition and Antidiabetic Potential of Taraxacum officinale, an Underutilized Herb

“…On the other hand, after shade drying, the β-carotene and ascorbic acid content of shade-dried T. officinale leaves decreased and indicated an almost 33.6% decrease in β-carotene content and a 13.1% decrease in ascorbic acid content. These results are in strong agreement with the previous findings, showing an overall increase in the majority of these phytoconstituents after shade drying and a slight decrease in some of the thermolabile compounds such as β-carotene and ascorbic acid [ 20 , 27 , 28 , 29 , 30 , 31 , 32 ]. The overall results demonstrate shade-dried T. officinale leaves to be the best source of phytochemicals and can be better exploited as a health-promoting agent against various oxidative stress-related diseases including diabetes.…”

“…The total flavonoid content of shade-dried T. officinale leaves also increased to almost 5.2% as compared to fresh leaves. Naturally occurring plant pigments or phytochemicals including chlorophyll, carotenoids and vitamin C exhibit numerous pharmaceutical and therapeutic effects, including antioxidant, antibacterial, antidiabetic and anticancer activities [ 27 ]. Several studies have reported the direct relationship between natural pigments and their bioactivities.…”

Phytochemical characterization, antioxidant and antibacterial activity of essential oil and extracts of Tagetes patula on Staphylococcus aureus

“…The total phenolic content equivalent of tannic acid for the EA of T. patula is 1,024 mg.g -1 APR, lower phenol contents were reported by Saani et al (2018) in the extract (ethyl acetate) of T. erecta flower, 48.2 mg.g -1 GAE (gallic acid equivalent).…”

“…El contenido de fenoles totales equivalente de ácido tánico para el AE de T. patula es de 1.024 mg.g -1 TAE, menores contenidos de fenoles fueron reportados por Saani et al (2018) en el extracto (acetato de etilo) de flor de T. erecta, 48,2 mg.g -1 GAE (equivalente de ácido gálico).…”

Pemanfaatan tanaman Tagetes erecta Linn. dalam kesehatan

“…(kadar 2mg/ml) masing-masing memiliki kemampuan antibakteri yang baik terhadap Escherichia coli, S.aureus, Bacillus subtilis dan Shigella dysenteriae yang diuji menggunakan metode difusi dengan control positif ampisilin. (17)…”