Asset Details
Do you wish to reserve the book?
Monitoring of essential and heavy metals in green tea from different geographical origins
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Monitoring of essential and heavy metals in green tea from different geographical origins
Do you wish to request the book?
Monitoring of essential and heavy metals in green tea from different geographical origins
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Monitoring of essential and heavy metals in green tea from different geographical origins
2016
Overview
The present study measured the concentrations of toxic metals (Cd, Pb) and other elements (Ca, K, Mg, Na, P, Mn, Fe, Zn, Cu, Co, Cr, Ni) in tea leaves and their infusions. The total metal contents were determined by atomic absorption spectrometry. Phosphorus concentration was determined using an ultraviolet–visible spectrophotometer. Assessment of the mineral composition enabled determination of the leaching percentage and the risk of exceeding provisional tolerable weekly intake for Cd through daily tea consumption. The concentrations of bioelements were analyzed based on the recommended daily intake values for each. According to recently established standards, green tea was found to be a rich source of Mn. The average Pb and Cd levels in a 200-mL beverage were 0.002 and 0.003 mg, respectively. Indian teas had the highest percentage of Cd leaching (43.8 %) and Chinese tea had the lowest (9.41 %). Multivariate analysis techniques such as factor analysis and cluster analysis were used to differentiate samples according to geographical origin (China, India, or Japan). Potassium, P, Mn, Fe, Cu, Co, and Cd were effective descriptors for the identification of tea samples from China, India, and Japan.
Publisher
Springer International Publishing,Springer Nature B.V
Subject
/ Atmospheric Protection/Air Quality Control/Air Pollution
/ atomic absorption spectrometry
/ Atomic absorption spectroscopy
/ Cadmium
/ calcium
/ China
/ chromium
/ cobalt
/ copper
/ Earth and Environmental Science
/ Ecology
/ Food
/ Food Contamination - analysis
/ Food Contamination - statistics & numerical data
/ Humans
/ India
/ iron
/ Japan
/ Leaching
/ Lead
/ leaves
/ Monitoring/Environmental Analysis
/ nickel
/ Principal components analysis
/ risk
/ sodium
/ Tea
/ toxicity
/ zinc
