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     Advance Journal of Food Science and Technology


Measurement and Analysis of Calcium Content in Wild Chinese Dwarf Cherry (Prunus humilis) Fruits by Inductively Coupled Plasma-optical Emission Spectrometer

Jian-Jun Ma and Yan-Jun Ren
Analysis and Testing Centre, Hebei Normal University of Science and Technology, Qinhuangdao City, 066004, Hebei Province, China
Advance Journal of Food Science and Technology  2015  4:242-245
http://dx.doi.org/10.19026/ajfst.8.1500  |  © The Author(s) 2015
Received: April ‎26, ‎2014  |  Accepted: May ‎25, ‎2014  |  Published: May 20, 2015

Abstract

Different forms of calcium in wild Chinese dwarf cherry (Prunus humilis) fruits (two genotypes, small-fruit-type and big-fruit-type) were sequential extracted and measured by Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES). The calcium content variation after postharvest storage was also studied, to provide the theory basis for the active nutritional ingredient evaluation of Chinese dwarf cherry (Prunus humilis). The results showed that, wild Chinese dwarf cherry (Prunus humilis) fruits in mature stage were rich in calcium nutrition element and mainly composed by water soluble calcium and calcium phosphate which absorbable to human. Absorbable calcium (including water soluble calcium and calcium phosphate) content in small-fruit-type (63.79%) was significantly higher than that of big-fruit-type (54.97%). After postharvest storage, the water soluble calcium content was increased while the calcium pectate and calcium oxalate content dropped. Especially to the big-fruit-type, the absorbable calcium content increased to 75.49% compared with just picking 54.97% (small-fruit-type increased from 63.79% to 68.86%). The study suggested that Chinese dwarf cherry (Prunus humilis) was a natural and biological calcium supplement to people; meanwhile, small-fruit-type was more suitable, especially after postharvest storage.

Keywords:

Calcium composition, calcium content, chinese dwarf cherry (Prunus humilis), fruit, ICP-OES,


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Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.

ISSN (Online):  2042-4876
ISSN (Print):   2042-4868
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