Distribution of free amino acids, polyphenols and sugars of Ziziphus jujuba pulps harvested from plants grown in Tunisia

Ziziphus jujuba pulps are very much appreciated by the inhabitants and have been recently exported. This article reports on the chemical composition (amino acids, polyphenols and sugars) of the pulps of four Z. jujuba ecotypes (Choutrana, Mahdia, Mahres and Sfax). The major amino acids identified we...

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Bibliographic Details
Published in:Natural product research 2015-01, Vol.29 (1), p.94-97
Main Authors: Elaloui, M., Laamouri, A., Fabre, J., Mathieu, C., Vilarem, G., Hasnaoui, B.
Format: Article
Language:English
Subjects:
amino acids
Amino Acids - analysis
Analytical chemistry
Aspartic Acid - analysis
Carbohydrates - analysis
Chemical Sciences
Chromatography, Gas
Chromatography, High Pressure Liquid
Drugs, Chinese Herbal - analysis
ecotype
Galactose - analysis
Glucose - analysis
Glutamic Acid - analysis
HPLC
Other
polyphenol
Polyphenols - analysis
Proline - analysis
pulps
Sucrose - analysis
sugar
Tunisia
Ziziphus
Ziziphus - chemistry
Ziziphus - genetics
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Summary:Ziziphus jujuba pulps are very much appreciated by the inhabitants and have been recently exported. This article reports on the chemical composition (amino acids, polyphenols and sugars) of the pulps of four Z. jujuba ecotypes (Choutrana, Mahdia, Mahres and Sfax). The major amino acids identified were proline, aspartic acid and glutamic acid. Among these, proline was the most abundant amino acid (17.4 mol). Considerable differences in total phenolic contents (15.85 mg/L) were found. Predominant phenols identified by using HPLC were rutin (1.09 mg/L) and chlorogenic acid (2.57 mg/100 g). Sugars isolated from Ziziphus pulps were found at a rate of 43.52%. Using HPLC method, three sugars from the pulp extract were identified: glucose, galactose and sucrose. The Mahdia ecotype was the richest in these sugars with 0.45, 136.51 and 113.28 mg/L, respectively.
ISSN:1478-6419
1478-6427
1029-2349
DOI:10.1080/14786419.2014.959011