In vitro evaluation of antioxidant properties of Cocos nucifera Linn. water
Abstract
Tender Cocos nucifera L. (Palmacea) water (CW( variety Chandrasankara, was tested for its ability to scavenge free radicals, inhibit lipid peroxidation and protect hemoglobin from nitrite‐induced oxidation. Fresh sample of CW scavenged 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH( 2,2′‐azino‐bis(3‐ethylbenz‐thiazoline‐6‐sulfonic acid) (ABTS) and superoxide radicals but promoted the production of hydroxyl radicals and increased lipid peroxidation. The activity was most significant for fresh samples of CW and diminished significantly upon heat, acid or alkali treatment or dialysis. Maturity of coconut drastically decreased the scavenging ability of CW against DPPH, ABTS and superoxide radicals. CW protected hemoglobin from nitrite‐induced oxidation to methemoglobin when added before the autocatalytic stage of the oxidation. Acid, alkali or heat treated or dialyzed CW showed a decreased ability in protecting hemoglobin from oxidation. The scavenging ability and protection of hemoglobin from oxidation may be partly attributed to the ascorbic acid, which is an important constituent of CW. As CW is a rich source of vitamins, amino acids and enzymes, etc., more than one active principle may be involved.
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The maturity of coconut drastically decreased the scavenging ability of coconut water against DPPH, ABTS and superoxide radicals.
“The maturity of coconut drastically decreased the scavenging ability of coconut water against DPPH (1,1-diphenyl-2-picrylhydrazyl), ABTS [2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)] and superoxide radicals.”
From Coconut water uses, composition and properties: a review (2012) · cites this paper as [74]
According to Mantena et al., antioxidant activity was highest in fresh coconut water samples.
“According to Mantena et al., antioxidant activity was highest in fresh coconut water samples and decreased significantly on heating, acid or alkali treatments or dialysis [74].”
From Coconut water uses, composition and properties: a review (2012) · cites this paper as [74]
Antioxidant activity of coconut water decreased significantly on heating, acid or alkali treatments or dialysis.
“According to Mantena et al., antioxidant activity was highest in fresh coconut water samples and decreased significantly on heating, acid or alkali treatments or dialysis [74].”
From Coconut water uses, composition and properties: a review (2012) · cites this paper as [74]
The presence of ascorbic acid in natural coconut water is correlated with antioxidant properties.
“Moreover, the presence of ascorbic acid in the natural CW was correlated with antioxidant properties (Mantena et al. 2003).”
From Evaluation of chemical constituents and antioxidant activity of coconut water (Cocus nucifera L.) and caffeic acid in cell culture (2013) · cites this paper as Mantena et al. 2003
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References 16 · Cited by 80
- Authors
- Mantena, S. K., Jagadish, Badduri, S. R., Siripurapu, K. B., & Unnikrishnan, M. K.
- Affiliations
- Manipal Academy of Higher Education (IN)
- Venue
- Food / Nahrung
- Publisher
- Wiley
- Published
- 2003-03-27
- Volume
- 47
- Issue
- 2
- Pages
- 126-131
- ISSN
- 0027-769X (ISSN-L)
- 1521-3803
- OpenAlex
- W1994943124
- Cited by
- 80
- References
- 16
- Citations by year
- 2026: 1 · 2025: 5 · 2024: 3 · 2023: 2 · 2022: 8 · 2021: 4 · 2020: 7 · 2019: 4 · 2018: 2 · 2017: 2 · 2016: 2 · 2015: 5 · 2014: 3 · 2013: 4 · 2012: 4
- FWCI
- 1.84
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Food / Nahrung (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Chemistry › Inorganic Chemistry › Coconut Research and Applications
- Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
- Physical Sciences › Chemistry › Organic Chemistry › Edible Oils Quality and Analysis
- Keywords
- coconut water, Cocos nucifera, antioxidant activity, free radical scavenging, lipid peroxidation inhibition, methemoglobin, DPPH, ABTS, superoxide, hydroxyl radicals, vitamin C, dialysis, fruit maturity
- MeSH terms
- Animals, Antioxidants, Ascorbic Acid, Biphenyl Compounds, Cocos, Erythrocytes, Female, Hot Temperature, Hemoglobins, Hydrazines, Hydrogen-Ion Concentration, Kinetics, Male, Methemoglobin, Oxidation-Reduction, Picrates, Plant Extracts, Sulfonic Acids, Superoxides, Lipid Peroxidation, Free Radical Scavengers, Hydroxyl Radical, Rats, Benzothiazoles
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