Uptake of fluoride by tea plant (<i>Camellia sinensis</i> L) and the impact of aluminium

Ruan, Jianyun; Ma, Lei; Shi, Yuanzhi; Wang, Han

doi:10.1002/jsfa.1546

Cited by 86 publications

(57 citation statements)

References 12 publications

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“…A comparison of the values in Table 2 also indicates that the other species appeared to accumulated lower amounts of F -somewhat, especially the waterweed E. nuttallii L. Besides, species appeared to accumulated lower amounts of F -in lower F --concentration culture. Similar findings are reported by Ruan, who summarized that F --uptake by Camelia sinensis L. tea plants was linearly correlated to external F --concentration (Ruan et al 2003).…”

Section: Resultssupporting

confidence: 78%

Removal of Fluoride from Water by Five Submerged Plants

Zhou

Gao

Yang

et al. 2012

Bull Environ Contam Toxicol

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Studies were conducted on the bioconcentration of fluoride (F(-)) in five submerged plants species. Ceratophyllum demersum, Hydrilla verticillata, Potamogeton malaianus, Myriophyllum verticillatum and Elodea nuttallii were all able to remove F(-) from water to some degree of efficiencies. At 5-20 mg F(-)/L culture solution, C. demersum had the best F(-)-removal performance, E. nuttallii had the poorest F(-)-removal performance among these plants. The relative growth rate (RGR) of the five species varied in different concentrations of F(-), of which C. demersum had the highest RGR. Its RGR decreased by 26.3 %, 63.2 % and 73.7 % from controls at 5, 10 and 20 mg F/L, respectively.

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Section: Resultssupporting

confidence: 78%

Removal of Fluoride from Water by Five Submerged Plants

Zhou

Gao

Yang

et al. 2012

Bull Environ Contam Toxicol

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“…Nagata et al (1993) studied the forms of F and Al in tea plant and indicated the evidence of Al-F complexes in tea tissues. Ruan et al (2003) examined the characteristic of fluoride uptake by tea plants and the impact of Al. Xie et al (2001) reported the relationships between Al and F in soil profiles of an abandoned tea plantation in Hong Kong and their uptake by six woody species, but they did not investigate the relationship between Al and F concentrations in soil, and Al and F contents in tea plant.…”

Section: Introductionmentioning

confidence: 99%

Distribution of aluminum and fluoride in tea plant and soil of tea garden in Central and Southwest China

et al. 2007

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The distribution of Al and F contents and the relationship between Al and F in tea plants and soils of 12 tea gardens in Central and Southwest China were investigated from October 31 to November 14, 2006. The results show that there were differences in pH, CEC, the contents of organic matter (OM), Al and F in the different soils of the tea gardens. The Al content ranged from 1196 to 7976mg/kg for old leaf, 370 to 2681mg/kg for young leaf and 285 to 525mg/kg for stem, whereas the content of F ranged from 221 to 1504mg/kg for old leaf, 49 to 602mg/kg for young leaf and 13.5 to 77.5mg/kg for stem. The concentrations of labile Al varied obviously in the different soils, but the distribution law of labile Al content for the same garden was Al exchangeable ≈Al Fe-Mn oxide >Al organic >Al water-soluble . The contents of different labile F fractions varied slightly in the different soils and the different soil layers, though the exchangeable F content was lowest among the labile F in the soils. The concentrations of Al and F in tea plants increased with increasing amount of water-soluble Al or F, especially the amount of water-soluble fractions in the soil layer of 0-20cm. The correlation between Al content and F content in the tea leaf was more significant than that in the tea stem. Furthermore, the correlation between Al content and F content in whole tea plant was strongly significant (r=0. 8763, p<0.01, n=36). There were evident tendency that Al concentration increased with the increase of F concentration in different soil layers. The correlation of water-soluble Al with water-soluble F in all soils was also strongly significant (r=0.7029, p<0.01, n=34). The results may provide a proof that Al and F are jointly taken up by tea plants to some extent in natural tea gardens.

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“…The fluoride content in various tea sorts has been reported e.g. by Cao et al (2004), Jin et al (2006), Mahvi et al (2006), some authors also discussed the impact of aluminium (Ruan et al 2003;Street et al 2007).…”

mentioning

confidence: 93%

Determination of fluoride in plant material using microwave induced oxygen combustion

Šucman¹,

Bednář²

2012

Czech J. Food Sci.

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AbstractŠucman E., Bednář J. (2012): Determination of fluoride in plant material using microwave induced oxygen combustion. Czech J. Food Sci., 30: 438-441.Fluorine is essential in human and/or animal nutrition, thus it is important to know its concentration in a diet. One of the important sources of fluorine for humans is tea, containing relatively high amounts of this trace element. A method for fluoride determination in various kinds of tea using microwave supported sample preparation in a high pressure oxygen atmosphere followed by potentiometry with a fluoride ion-selective electrode were described. The parameters of the microwave device for such combustion procedure were checked and optimised in order to find settings ensuring complete sample combustion and/or absorption of the analyte in the absorption solution. For the ionselective electrode measurement, the technique of standard addition was chosen. The Nernstian slope of the fluoride ion-selective electrode was measured and calculated in the concentration range in which the potential of samples occurred. Concentrations of fluorides in tea in the range from 24.5 mg/kg to 254.5 mg/kg were found. In order to check the accuracy of the method certified reference materials were used. The precision expressed as the relative standard deviation ranged from 3.7% to 15.9%. The method is fast, accurate and reliable for this kind of analysis.

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Uptake of fluoride by tea plant (Camellia sinensis L) and the impact of aluminium

Cited by 86 publications

References 12 publications

Removal of Fluoride from Water by Five Submerged Plants

Removal of Fluoride from Water by Five Submerged Plants

Distribution of aluminum and fluoride in tea plant and soil of tea garden in Central and Southwest China

Determination of fluoride in plant material using microwave induced oxygen combustion

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