Open AccessNatural Antioxidant of Xanthosoma nigrum Stellfeld
Author(s) -
Ratnawati Devi,
Wahidah Fitriyanti,
Agus Putranto,
Widiyati Eni
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1940/1/012034
Subject(s) - radical , chemistry , thiobarbituric acid , antioxidant , malondialdehyde , linoleic acid , substrate (aquarium) , food science , biochemistry , lipid peroxidation , fatty acid , oceanography , geology
The primary use of antioxidants is to break free radicals’ reaction to save the body from damage due to free radicals. Free radicals react with molecules around them to obtain electron pairs and achieve stability or molecular atoms and achieve stability or molecular atoms. This reaction would be continuously processed in the body. It would cause various diseases such as cancer, heart, cataracts, premature aging, and other degenerative diseases if it did not stop. The oxidated linoleic acid substrate determined the antioxidant of Xanthosoma nigrum Stellfeld activity. The oxidation results in the form of malondialdehyde (MDA) would be reacted with thiobarbituric acid formed products in the form of a red complex (MDA-TBA), which absorption was measured by spectrophotometer at λ 532 nm. Xanthosoma nigrum Stellfeld extract with a concentration of 100 ppm, 150 ppm, 200 ppm, and 300 ppm had the inhibition of 19,32%, 21,85%, 29,47%, and 31,05%. The positive control, with α-tocopherol 200 ppm, had inhibition of 85,14%.