Elaloui M, Laamouri A, Fabre J, Mathieu C, Vilarem G, Hasnaoui B
a Institut National des Recherches en Génie Rural, Eau, Forêts (INRGREF), rue Hedi Karray , Elmenzeh IV, BP 10, 2080 Ariana , Tunisia.
Nat Prod Res. 2015;29(1):94-7. doi: 10.1080/14786419.2014.959011. Epub 2014 Sep 25.
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.
枣果肉深受当地居民喜爱，最近已开始出口。本文报道了四种枣生态型（Choutrana、马赫迪耶、马赫雷斯和斯法克斯）果肉的化学成分（氨基酸、多酚和糖类）。鉴定出的主要氨基酸为脯氨酸、天冬氨酸和谷氨酸。其中，脯氨酸是含量最丰富的氨基酸（17.4摩尔）。发现总酚含量存在显著差异（15.85毫克/升）。通过高效液相色谱法鉴定出的主要酚类物质为芦丁（1.09毫克/升）和绿原酸（2.57毫克/100克）。从枣果肉中分离出的糖类含量为43.52%。采用高效液相色谱法，从果肉提取物中鉴定出三种糖类：葡萄糖、半乳糖和蔗糖。马赫迪耶生态型的这些糖类含量最为丰富，分别为0.45、136.51和113.28毫克/升。
