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Elemental analysis of the edible fruit of Carpobrotus dimidiatus (from Kwazulu-Natal, South Africa) and the influence of soil quality on its elemental uptake.
Journal of Environmental Science and Health, Part B ( IF 1.4 ) Pub Date : 2019-12-27 , DOI: 10.1080/03601234.2019.1707016
Neal K Broomhead 1 , Roshila Moodley 1 , Sreekantha B Jonnalagadda 1
Affiliation  

Carpobrotus dimidiatus is an indigenous South African medicinal plant species from the Aizoaceae family that bears edible fruit that is consumed for nutritional value. In this study, the elemental distribution in C. dimidiatus fruit and growth soil from fifteen sites in KwaZulu-Natal (South Africa) was determined along with soil pH, soil organic matter and cation exchange capacity, to assess for nutritional value and the effect of soil quality on elemental uptake. The results showed elemental concentrations in fruit to be in decreasing order of Ca (6235-32755 mg kg-1) > Mg (2250-5262 mg kg-1) > Fe > Mn > Zn (20.9-50.6 mg kg-1) > Cu (3.83-20.6 mg kg-1) > Pb > Cr > Cd > As ∼ Co ∼ Ni ∼ Se and no potential health risk due to metal toxicity from average consumption. For sites that had high levels of Cd and Pb, bioaccumulation occurred from atmospheric deposition. Concentrations of elements in soil were found to be in decreasing order of Fe (1059-63747 mg kg-1) > Ca (1048-41475 mg kg-1) > Mg > Mn (9.76-174 mg kg-1) > Cr (1.55-135 mg kg-1) > Zn (0.76-58.2 mg kg-1) > Se > Cu > Ni > Pb > Co > As ∼ Cd with no evidence of heavy metal contamination. This study revealed that the plant inherently controlled uptake of essential elements according to physiological needs and that the concentrations of essential elements in the fruit could contribute positively to the diet.

中文翻译:

拟南芥(Carpobrotus dimidiatus)(来自南非夸祖鲁-纳塔尔省)的可食用水果的元素分析以及土壤质量对其元素吸收的影响。

Carpobrotus dimidiatus是来自非洲菊科(Aizoaceae)的南非本土药用植物,具有可食用的果实,其食用具有营养价值。在这项研究中,测定了南非夸祖鲁-纳塔尔省(KwaZulu-Natal)(南非)十五个地点的地衣线虫果实和生长土壤中的元素分布,以及土壤的pH值,土壤有机质和阳离子交换能力,以评估其营养价值和土壤肥力的影响。土壤质量对元素吸收的影响。结果显示水果中的元素浓度从高到低依次为Ca(6235-32755 mg kg-1)> Mg(2250-5262 mg kg-1)> Fe> Mn> Zn(20.9-50.6 mg kg-1)> Cu(3.83-20.6 mg kg-1)> Pb> Cr> Cd> As〜Co〜Ni〜Se,并且由于平均消费所产生的金属毒性而没有潜在的健康风险。对于镉和铅含量高的站点,生物积累是由大气沉积引起的。发现土壤中的元素浓度降序为铁(1059-63747 mg kg-1)>钙(1048-41475 mg kg-1)>镁>锰(9.76-174 mg kg-1)>铬( 1.55-135 mg kg-1)> Zn(0.76-58.2 mg kg-1)> Se> Cu> Ni> Pb> Co> As〜Cd,没有重金属污染的迹象。这项研究表明,植物可以根据生理需求内在地控制必需元素的摄取,并且水果中必需元素的浓度可以对饮食产生积极影响。Se> Cu> Ni> Pb> Co> As〜Cd,没有重金属污染的迹象。这项研究表明,植物可以根据生理需求内在地控制必需元素的摄取,并且水果中必需元素的浓度可以对饮食产生积极影响。Se> Cu> Ni> Pb> Co> As〜Cd,没有重金属污染的迹象。这项研究表明,植物可以根据生理需求内在地控制必需元素的摄取,并且水果中必需元素的浓度可以对饮食产生积极影响。
更新日期:2020-04-18
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