The phytochemical constituent and antioxidant activity of Sea Weed Euchaema Cottonii

Abstract

This study aimed to determine the phytochemical content and antioxidant activity of the red sea weed Euchaema cottonii. The phytochemical component of this seaweed can be used as an agent for enteric methane mitigation. The antioxidant can be used to reduce the reaction of free radicals when the animals are in heat stress conditions. The study presented used fresh and oven-dried E. cottonii. The methods of study started with the extracting process of two seaweed samples (fresh and sundried) using 3 types of solutions, namely water, hexane, and dichloromethane (DCM). The phytochemical content was analyzed using spektro-tanat, while antioxidant activity was determined using the DPPH test (1,1-diphenyl-2-picrilhidrazil). The result showed that the extract seaweed E. cottonii contained alkaloid, flavonoid, saponin, and steroid/triterpenoid. The seaweed did not contain tannin. The seaweed contains 0.249 to 2.430 mg TAE/gram of total phenolic. Based on the results of the antioxidant activity test using DPPH obtained extract seaweed E. cottonii is active as an antioxidant. The highest phytochemical and phenolic content resulted when the dried seaweed was extracted using the DCM. It is concluded that sea weed E. cottonii contains some phytochemicals and has an antioxidant activity.