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Effect of Phenolic Components of Earth Apple (Helianthus Tuberosus) in the Inhibiting of Oxidation and Extension the Shelf-life of Vegetable Oils

Authors
  • Adnan, W . H . Al - Mudhafr
  • Wafaa, A . Raheem
Journal
Journal of Botanical Research
Publisher
Bilingual Publishing Co
Publication Date
Apr 30, 2021
Volume
3
Issue
2
Identifiers
DOI: 10.30564/jbr.v3i2.3030
Source
Bilingual Publishing
Keywords
License
Green

Abstract

Earth Apple (Helianthus tuberosus) phenolic compounds were extracted using two methods ethanol extraction (98 percent ethanol for 24 hours at room temperature) and water extraction (distilled water for 24 hours at room temperature). To measure the sum of phenols in the extract, the Folin-Ciocateu method was used. The alcohol extract gave a higher phenol content of 58.29 mg/g (gallic acid), while the alcoholic extract had flavonoids 26.63 mg/g (gallic acid). Water extract was phenols content of 42.62 mg/g (gallic acid) while the alcoholic extract had flavonoids 11.23 mg/g (gallic acid). The alcoholic extract from Earth Apple gave the highest antioxidant effect at 88.32%, while the water extract was 77.43%. The inhibitory effect of the added Earth Apple extract oil to inhibit oxidation, remove concentrations (0.1, 0.15, 0.2 percent) of Palm Oil and Sunflower oil as it exceeded the reduction of peroxide values during the reservoir periods (15, 30, 45, 60 days).

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