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Molecules 2015, 20(2), 3129-3145; doi:10.3390/molecules20023129

Potential Quality Evaluation Method for Radix Astragali Based on Sweetness Indicators

1
Modern Research Center for Traditional Chinese Medicine, Shanxi University, No.92, Wucheng Road, Taiyuan 030006, China
2
College of Chemistry and Chemical Engineering, Shanxi University, No.92, Wucheng Road, Taiyuan 030006, China
3
Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing 100050, China
*
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 6 December 2014 / Accepted: 28 January 2015 / Published: 13 February 2015
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [3316 KB, uploaded 13 February 2015]   |  

Abstract

Sweetness is a traditional sensory indicator used to evaluate the quality of the popular Chinese herb Radix Astragali (RA). RA roots with strong sweetness are considered to be of good quality. However, neither a thorough analysis of the component(s) contributing to RA sweetness, nor a scientific investigation of the reliability of this indicator has been conducted to date. In this study, seven kinds of sweetness components were identified in RA and a quality evaluation method based on these components was established and used to characterize the quality of 48 RA samples. The sweetness evaluation method of RA was first built based on the sweetness components, and a comprehensive evaluation index commonly used in quality control of RA was also derived, which was based on the contents of four indicators (astragaloside IV, calycosin glucoside, polysaccharides and extracts). After evaluating the correlation of these indexes the results showed that the level of sweetness exhibited a strong positive correlation with the proposed comprehensive index. Our results indicate that sweetness is one of the most important quality attributes of RA and thus provide a scientific basis for the utility of the sweetness indicator in quality assessment of this Chinese herb. View Full-Text
Keywords: Radix Astragali; sweetness indicator; comprehensive evaluation; quality control Radix Astragali; sweetness indicator; comprehensive evaluation; quality control
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MDPI and ACS Style

Li, K.; Gao, F.; Li, Z.; Qin, X.; Sun, H.; Xing, J.; Zhang, L.; Du, G. Potential Quality Evaluation Method for Radix Astragali Based on Sweetness Indicators. Molecules 2015, 20, 3129-3145.

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