Publications by authors named "Yun-Dong Shao"
Article Synopsis
- The study focuses on evaluating the quality of green tea extracts, specifically looking at tea polyphenols and caffeine as key components.
- A new method called Quality Evaluation of Multi-components by Single Marker (QAMS) was tested, using Taguchi Design to assess variations in tea catechins, gallic acid, and caffeine.
- Analysis revealed significant differences in the composition of Longjing green tea extracts from various producers, supporting QAMS as a reliable technique for quality control across different tea sources.
This paper reiviewed the current situation of quality control of grape seed extract in domestic and international market. Considering the fact that there is no national or industrial technical specifications established for the extract product, the authors suggested that two sets of quality specifications should be established for the grape seed extract. The two sets of specifications are: the high purity grape seed extract should contain polyphenol NLT 95%, monomer NLT 10%; and the grape seed extract with ordinary quality should have a procyanidolic value NLT 95, and monomer NLT 6%.
View Article and Find Full Text PDFThe current situation of plant extract in domestic and international market was analyzed in the paper. The quality control of 20 plant extracts which have reasonably good sales in USA market was compared and analyzed. The analysis of the quality control of six plant extracts indicated that there were two main reasons leading to the varied quality specifications among different suppliers.
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