【摘要】 广东陈香茶以其独特的品质风格而蜚声中外,近年更是兴起了饮用广东陈香茶的热潮。因此,为了进一步探明广东陈香茶的质量安全性,本研究以多种广东陈香茶为原料,以未渥堆发酵的普洱茶为对照,采用国家标准测定方法对其主要的品质安全性指标进行评价和分析。结果表明:单丛陈香茶和仁化熟砖菌落总数最多;在本研究范围内未检测出黄曲霉素、致泻大肠埃希氏菌、大肠杆菌、沙门氏菌和金黄色葡萄球菌;农药残留未检出;重金属铅的含量在4.87～0.55mg/kg范围内,满足普洱茶地方标准和食品中污染物限量要求;总灰分含量范围在6.015%～8.263%,水不溶性灰分含量在2.093%～3.224%,水溶性灰分占总灰分的50%以上,酸不溶性灰分在0.04%～0.645%范围内,说明茶叶品质较好。总体来看,广东陈香茶的安全性是可靠的。更多还原

【Abstract】 Guangdong Chenxiang tea is famous at home and aboard due to its special quality.Currently,extensive attention has been paid to Guangdong Chenxiang tea.In order to further explore its quality and safety,Guangdong Chenxiang tea was evaluate for its major indices related to quality and safety according to the national standard method using un-fermented puer tea as the reference.The results showed that Dancong Chenxiang tea and Renhua fermented brick tea had more colony number.In the present study,aflatoxin,Escherichia coli,Salmonellae and Staphylococcus aureus as well as pesticide residues were not detected.The content of heavy metal plumbum(Pb) was in the range of 4.87-0.55 mg/kg,which met the maximum limit requirements of Tea Quality Standards and Standards for Maximum Contaminant Levels in Foods.The total ash content was in the range of 6.015%-8.263% and the water-insoluble ash was in the range of 2.093%-3.224%.The water-soluble ash accounted for 50% of total ash.The acid-insoluble ash content was between 0.04% and 0.645%.Less mud and sand in tea can provide better quality and Guangdong Chenxiang tea is safe and credible.更多还原