Antioxidant activity of carob seeds and chemical composition of their bean gum by– products
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Aida Mekhoukhe
, Houda Kicher
Abstract
Background
The carob (Ceratonia siliqua L.) is very old edible fruit, flavorful and often used in foods and beverages. In this present study the composition of phenolic compounds, the antioxidant activity and the production locust bean gum (LBG) of seeds grown in Algeria was explored.
Methods
The phenolic contents (total phenolics, total tannins, total flavonoids, condensed tannins and flavonols) and the antioxidant activity of the aqueous methanolic, ethanolic and acetonic extracts (70, 80 and 80v/v, respectively) of the seeds were determined using colorimetric methods. Furthermore, the carob bean gum from seeds was extracted and its chemical composition was evaluated.
Results
Aqueous acetonicextract of carob seeds give the highest contents of total phenolics, total flavonoids, flavonols, total tannins and condensed tannins which were 12.24±0.02, 1.33±0.01, 2.97±0.01, 4.29±0.2 and 0.53±0.01 mg/g of dry weight, respectively. The same extract showed also the best antioxidant activity in all assays compared to other extracts.
Acknowledgements
We thank Dr Sabrina Zeghichi member of Research Laboratory of Biochemistry, Biophysics, Biomathematics and Scientometrics (L3BS) of Bejaia University.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This work was supported by a grant from the Ministry of High Education and Scientific Research of Algeria.
Employment or leadership: None declared.
Honorarium: None declared.
Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis,and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.
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- Pre-clinical Studies
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- Antioxidant activity of carob seeds and chemical composition of their bean gum by– products
- Modulatory effect of some citrus (Citrus limon, Citrus reticulata, Citrus maxima) peels on monoamine oxidase, phosphodiesterase-5 and angiotensin-1 converting enzyme activities in rat heart homogenate
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