In Vitro Antioxidant and Free Radical Scavenging Activity of Curcuma longa, Acorus calamus and Camellia sinensis  

作　　者：Rajkumar Rahul Sanjeevirayar Arrivukkarasan Shanmugam Anhuradha Rajkumar Rahul;Sanjeevirayar Arrivukkarasan;Shanmugam Anhuradha(Biochemistry Laboratory, Department of Chemical Engineering, Faculty of Engineering and Technology, Annamalai University, Annamalai Nagar, Tamil Nadu, India)

机构地区：[1]Biochemistry Laboratory, Department of Chemical Engineering, Faculty of Engineering and Technology, Annamalai University, Annamalai Nagar, Tamil Nadu, India

出　　处：《Food and Nutrition Sciences》2022年第8期750-760,共11页食品与营养科学（英文）

摘　　要：The purpose of the current study was to determine the total phenolic and flavonoid content and total antioxidant activity of the Curcuma longa, Acorus calamus, and Camellia sinensis ethanolic extracts and their free radical scavenging activity. The study concluded that the Curcuma longa, Acorus calamus, and Camellia sinensis ethanolic extracts have a good source of phenolics, flavonoids, and antioxidant sources in turn which opens the high possibility of the extracts being used as food preservatives. The DPPH assay for scavenging free radicals showed that the IC₅₀ value was above 123% of Curcuma longa ethanolic extract, 129.9% μg/ml of Acorus calamus ethanolic extract and 25% of Camellia sinensis ethanolic extracts shows very strong inhibition of the free radicals. Thus, comparing the DPPH assay for scavenging free radicals of Curcuma longa, Acorus calamus and Camellia sinensis ethanolic extracts with the positive control ascorbic acid, Curcuma longa and Camellia sinensis ethanolic extracts showed strong inhibition of the free radicals.The purpose of the current study was to determine the total phenolic and flavonoid content and total antioxidant activity of the Curcuma longa, Acorus calamus, and Camellia sinensis ethanolic extracts and their free radical scavenging activity. The study concluded that the Curcuma longa, Acorus calamus, and Camellia sinensis ethanolic extracts have a good source of phenolics, flavonoids, and antioxidant sources in turn which opens the high possibility of the extracts being used as food preservatives. The DPPH assay for scavenging free radicals showed that the IC₅₀ value was above 123% of Curcuma longa ethanolic extract, 129.9% μg/ml of Acorus calamus ethanolic extract and 25% of Camellia sinensis ethanolic extracts shows very strong inhibition of the free radicals. Thus, comparing the DPPH assay for scavenging free radicals of Curcuma longa, Acorus calamus and Camellia sinensis ethanolic extracts with the positive control ascorbic acid, Curcuma longa and Camellia sinensis ethanolic extracts showed strong inhibition of the free radicals.

关 键 词：Total Phenolic Content Total Flavonoid Content DPPH Curcuma longa Acorus calamus and Camellia sinensis 

分 类 号：R28[医药卫生—中药学]