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- Title
富硒茶叶中硒含量的检测及相关标准的分析探讨.
- Authors
董亚蕾; 刘文婧; 曹 进
- Abstract
Objective To determine the total selenium in selenium-enriched tea sample, find out the problems about the selenium content and its labeling value, analyze the current standards related to selenium-riched tea and reveal the potential quality safety problems. Methods The tea samples were pretreated with microwave digestion, and the selenium content in selenium-enriched tea samples were determined by hydride generation atomic fluorescence spectrometry. The results were compared with common tea and their labeling values, respectively. Meanwhile, the industry standards and local standards about selenium-riched tea products were analyzed and the potential quality and safety problems that resulted from the absence of key national standard were pointed out. Results The actual selenium content in some selenium-enriched tea were too low and could not meet the related requirement in industry standards. The labeling values of some selenium-rich tea were inaccurate and irregular. Selenium-enriched tea industry had developed rapidly, but the quality problems had not attracted enough attention. The key technical specifications and national standards were missing, and the inspection and evaluation of quality monitoring of selenium-riched tea were still insufficient. Conclusion The standards about selenium-enriched tea are not uniform and the national standards are absent. So relevant national standards should be established as soon as possible, and the regulation should be enhanced to protect people's health.
- Publication
Journal of Food Safety & Quality, 2017, Vol 8, Issue 12, p4859
- ISSN
2095-0381
- Publication type
Article