Effects of Different Drying Methods and Storage Time on Free Radical Scavenging Activity and Total Phenolic Content of Cosmos Caudatus

Antioxidants
Ahmed MedianiAlfi Khatib

Abstract

The present study was conducted to determine the effect of air (AD), oven (OD) and freeze drying (FD) on the free radical scavenging activity and total phenolic content (TPC) of Cosmos caudatus and the effect of storage time by the comparison with a fresh sample (FS). Among the three drying methods that were used, AD resulted in the highest free radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) (IC50 = 0.0223 mg/mL) and total phenolic content (27.4 g GAE/100 g), whereas OD produced the lowest scavenging activity and TPC value. After three months of storage, the dried samples showed a high and consistent free radical scavenging activity when compared to stored fresh material. The drying methods could preserve the quality of C. caudatus during storage and the stability of its bioactive components can be maintained.

Citations

Feb 24, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Ameena AliBee Lin Chua
Oct 9, 2019·Metabolites·Gloria I Hernández-BolioFrancisco J Aguirre-Crespo
Oct 20, 2018·Journal of Food Science and Technology·Inta KrasnovaValentina Pole
Jul 10, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Pei Lou WongFaridah Abas
Jan 23, 2020·Animals : an Open Access Journal From MDPI·Abiodun Mayowa AkanmuFestus Adeyemi Adejoro
Dec 10, 2020·Phytochemical Analysis : PCA·Pei Lou WongFaridah Abas
Oct 23, 2020·Journal of Food Science and Technology·Ángel Félix Vargas-MadrizSalvador Horacio Guzmán-Maldonado
Mar 19, 2021·Food Science and Biotechnology·Siti Norhamimah Mohamed YunusSiti Zulaikha Abd Ghafar

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