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Contribution of tea (Camellia sinensis L.) to recommended daily intake of Mg, Mn, and Fe: An in vitro bioaccessibility assessment
- Publication Year :
- 2018
- Publisher :
- Academic Press, 2018.
-
Abstract
- This study outlines the determination of total elemental contents, time-dependent extractabilities, and bioaccessibilities of Mg, Mn, and Fe from nine tea samples, including black, earl grey, and green teas, using inductively coupled plasma mass spectrometry. Leachabilities and bioaccessibilities were evaluated using samples infused for 2, 5, and 10 min, and bioaccessible levels were determined after in vitro enzymatic digestion. Lemon juice, sugar, milk, calcium, and tannic acid were studied as additives, and found to increase or decrease the bioaccessibilities from black tea infusions. Drinking one cup of tea provided 0.16%, 0.01%, and 0.10% of the recommended dietary allowance of Mg for black, earl grey, and green teas infused for 2 min, respectively. The equivalent levels were 11%, 6%, and 7% for Mn, and 0.05%, 0.02%, and 0.02% for Fe in the same samples, respectively. Therefore, Mn was found to be the most bioaccessible element resulting from tea consumption, reaching 17%–24% of the recommended daily allowance in the 10-min infusion. Moreover, lemon juice was found to increase the bioaccessibility of Mn by up to 3.4-fold, even in tea samples infused for 2 min.
- Subjects :
- Leaves
Infusions
chemistry.chemical_element
Bioaccessibility
Corylus-avellana l
Calcium
Food science & technology
01 natural sciences
Reference Daily Intake
chemistry.chemical_compound
0404 agricultural biotechnology
Tannic acid
Camellia sinensis
Magnesium
Food science
Trace-elements
Sugar
Plasma-mass spectrometry
Inductively coupled plasma mass spectrometry
Food samples
ManganeseIron
Enzymatic digestion
Chemistry
Food analysis
010401 analytical chemistry
Atomic-absorption-spectrometry
Human health
Icp-ms
04 agricultural and veterinary sciences
Tea
Medicinal Plant
Fluorosis
Chemistry, applied
040401 food science
Tea (Camellia sinensis L.)
0104 chemical sciences
Dietary Reference Intake
Mangenese
Food composition
Inductively coupled plasma-mass spectrometry (ICP-MS)
Food Science
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....b243ac71fdb37fa79f8f436ff2f37da8