Studies on the Composition and In-Vitro Antioxidant Activities of Concentrates from Coconut Testa and Tender Coconut Water
| Autor: | Geetha, Chetana R, Suresh Kumar G, Gopala Krishna Ag, Bhavana Kp |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Antioxidant
business.industry medicine.medical_treatment Dose dependence 04 agricultural and veterinary sciences 040401 food science High-performance liquid chromatography In vitro Ferulic acid chemistry.chemical_compound 0404 agricultural biotechnology chemistry Ic50 values medicine Composition (visual arts) Food science business Beneficial effects |
| Zdroj: | Journal of Food Processing & Technology. |
| ISSN: | 2157-7110 |
| DOI: | 10.4172/2157-7110.1000588 |
| Popis: | Tender coconut water is known to have health beneficial effects. Antioxidants are the bioactives which helps in the amelioration of wide range of diseases like diabetes, obesity, cancer etc. In the current study two concentrates were prepared from coconut testa, as phenolic concentrate (PHE) and tender coconut water concentrate (TCW).These concentrates were evaluated for proximate composition, phenolic acids and antioxidant activities. Protein (3.7% and 5.2%), carbohydrates (56.6% and 53.5%), phenolics (3.4% and 2.6%) and flavonoids (1.9% and 1.4%) were observed in PHE and TCW respectively. Phenolic acids composition was estimated by HPLC and major phenolic acids were found to be gallic/tannic, Protocateuchic and ferulic acid. Both concentrates had good reducing power ability with IC50 values of 68.4 μg (PHE) and 73.5 μg (TCW). Further, DNA protection assay evidenced the dose dependence protection for free radical induced oxidation by PHE and TCW. Hence, concentrates of PHE and TCW are useful in preventing stress induced ailments. Since the concentrates are stable it can be used in different food preparations. |
| Databáze: | OpenAIRE |
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