Sugar Profile of Kernels as a Marker of Origin and Ripening Time of Peach (Prunus persicae L.)
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Fotiric-Aksic, Milica M.
Šegan, Sandra B.
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Large amounts of fruit seeds, especially peach, are discarded annually in juice or conserve producing industries which is a potential waste of valuable resource and serious disposal problem. Regarding the fact that peach seeds can be obtained as a byproduct from processing companies their exploitation should be greater and, consequently more information of cultivars' kernels and their composition is required. A total of 25 samples of kernels from various peach germplasm (including commercial cultivars, perspective hybrids and vineyard peach accessions) differing in origin and ripening time were characterized by evaluation of their sugar composition. Twenty characteristic carbohydrates and sugar alcohols were determined and quantified using high-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC/PAD). Sucrose, glucose and fructose are the most important sugars in peach kernels similar to other representatives of the Rosaceae family. Also, high amounts of... sugars in seeds of promising hybrids implies that through conventional breeding programs peach kernels with high sugar content can be obtained. In addition, by the means of several pattern recognition methods the variables that discriminate peach kernels arising from diverse germplasm and different stage of maturity were identified and successful models for further prediction were developed. Sugars such as ribose, trehalose, arabinose, galactitol, fructose, maltose, sorbitol, sucrose, iso-maltotriose were marked as most important for such discrimination.
Кључне речи:Peach kernel / Sugar composition / Anion-exchange chromatography / Multivariate analysis
Извор:Plant Foods for Human Nutrition, 2015, 70, 4, 433-440
- Springer, Dordrecht
- Корелација структуре и особина природних и синтетичких молекула и њихових комплекса са металима (RS-172017)
- Примена нових генотипова и технолошких иновација у циљу унапређења воћарске и виноградарске производње (RS-31063)
- Center of Excellence for Molecular Food Sciences, University of Belgrade Faculty of Chemistry