A method was proposed for the determination of trace cadmium in Chinese medicine herb Thymus serpyllum L.by graphite furnace atomic absorption spectrometry(GFAAS).A chemical modifier and its proper concentration,the i...A method was proposed for the determination of trace cadmium in Chinese medicine herb Thymus serpyllum L.by graphite furnace atomic absorption spectrometry(GFAAS).A chemical modifier and its proper concentration,the influence factors including ashing and atomization temperatures,atomization time and coexisting ions were investigated.Under the optimum experimental conditions,the detection limit and the relative standard deviation of the method were 06 pg and 22%(n=11),respectively.The recovery was between 965% and 106%.The method is simple,rapid and accurate.A real sample Thymus serpyllum L.and a biological standard sample(GBW 08501)of Peach Leaves were analyzed for cadmium by this method to afford Satisfactory results.展开更多
Background: Based on the scientific and traditional knowledge, benefits for gut and digestive health were expected from Wild Thyme (Thymus serpyllum L.) extract (WThE) consumption, but no controlled human studies were...Background: Based on the scientific and traditional knowledge, benefits for gut and digestive health were expected from Wild Thyme (Thymus serpyllum L.) extract (WThE) consumption, but no controlled human studies were performed yet to prove the proposed health benefits. Method: The aim of this human randomized, double-blind parallel arm pilot study was to explore the impact of aqueous Wild Thyme extract, a food supplement, in a healthy but overweight study collective (N = 40). In detail, the impact on digestion, gastrointestinal symptoms, gut microbiome, and quality of life by employing an essential oil-free WThE preparation or a matching placebo was investigated. Results: The study results indicate that WThE has the potential to improve gastrointestinal symptoms and increase stool frequency, thus an improved quality of life was observed. The stool microbiome of study collective was characterized by a high Firmicutes to Bacteroidetes ratio. A decrease in the mean Firmicutes/Bacteroidetes ratio was seen in WThE group. Conclusion: The data support the potential applications of WThE as a food supplement with benefits on gut health.展开更多
文摘A method was proposed for the determination of trace cadmium in Chinese medicine herb Thymus serpyllum L.by graphite furnace atomic absorption spectrometry(GFAAS).A chemical modifier and its proper concentration,the influence factors including ashing and atomization temperatures,atomization time and coexisting ions were investigated.Under the optimum experimental conditions,the detection limit and the relative standard deviation of the method were 06 pg and 22%(n=11),respectively.The recovery was between 965% and 106%.The method is simple,rapid and accurate.A real sample Thymus serpyllum L.and a biological standard sample(GBW 08501)of Peach Leaves were analyzed for cadmium by this method to afford Satisfactory results.
文摘Background: Based on the scientific and traditional knowledge, benefits for gut and digestive health were expected from Wild Thyme (Thymus serpyllum L.) extract (WThE) consumption, but no controlled human studies were performed yet to prove the proposed health benefits. Method: The aim of this human randomized, double-blind parallel arm pilot study was to explore the impact of aqueous Wild Thyme extract, a food supplement, in a healthy but overweight study collective (N = 40). In detail, the impact on digestion, gastrointestinal symptoms, gut microbiome, and quality of life by employing an essential oil-free WThE preparation or a matching placebo was investigated. Results: The study results indicate that WThE has the potential to improve gastrointestinal symptoms and increase stool frequency, thus an improved quality of life was observed. The stool microbiome of study collective was characterized by a high Firmicutes to Bacteroidetes ratio. A decrease in the mean Firmicutes/Bacteroidetes ratio was seen in WThE group. Conclusion: The data support the potential applications of WThE as a food supplement with benefits on gut health.
