Extraction, Purification and Antioxidant Activity of Melanin from the Black Ants

doi:A

Abstract

Abstract: The melanin derived from the black ants was isolated and purified by acid hydrolysis, alkaline extraction, acid deposition and organic solvents abstersion. The solubility showed that the melanin was soluble in alkaline solution, but insoluble in water, acid solution and organic solvent. It may be a type of indoles melanin from the UV-visible spectrogram and the infrared spectrogram. The total antioxidant capacity, hydroxyl radical scavenging capacity and reducing power of the melanin were measured by the spectrophotometric method. The results showed that the melanin had certain antioxidant activity, but lower than that of the vitamin C.

Key words: black ants, melanin, extraction, purification, antioxidant activity

CLC Number:

TS201.2

TAO Jun, QIAO Li-na, TONG Jing-jing, LI Yang-yue, NIE Shao-ping, HU Xiao-bo. Extraction, Purification and Antioxidant Activity of Melanin from the Black Ants[J]. NATURAL PRODUCT RESEARCH AND DEVELOPMENT, 2012, 23(7): 873-.

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