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Accumulation of Essential and Trace Elements in Guar (Cyamopsis tetragonoloba) and Guar Gum Cultivated in Semi-arid Regions of Sindh, Pakistan

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For physiological and biochemical studies, it is considered essential to have knowledge about the accumulation of mineral elements in plants and their distribution in different parts of the fruit and these data being essential for geographical origins of different food commodities. In the age of food industry globalization, the origin of food is essential to know for human health protection, to stimulate fine agronomic actions and to bar the use of toxic materials to stimulate plant’s growth. This research work was formulated to assess the essential trace and toxic elements in Guar (Cyamopsis tetragonoloba) and guar gum cultivated in semi-arid regions of Sindh, Pakistan. For pretreatment of the guar samples, microwave-assisted acid digestion procedure (MAD) was developed for the elemental analysis in the guar samples. The validity of designed method was checked by using certified reference samples of BCR 189 whole meal flour. The digested specimens were analyzed by flame and graphite furnace atomic absorption spectrophotometry. The concentration of essential trace and toxic elements was found to be within the international level. In addition, human health Risk assessment was accessed by measuring daily intake of all understudy minerals, which was within permissible exposure limit set by USEPA & Health Canada. The Target Hazard Quotient (THQs) of guar and its gum were generally less than 1, as per USEPA; owing to these facts, food grade guar gum can be produced from guar cultivated in Thar, Pakistan.

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Correspondence to Farah Naz Talpur.

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Khan, A., Talpur, F.N. & Afridi, H.I. Accumulation of Essential and Trace Elements in Guar (Cyamopsis tetragonoloba) and Guar Gum Cultivated in Semi-arid Regions of Sindh, Pakistan. Biol Trace Elem Res 194, 581–588 (2020). https://doi.org/10.1007/s12011-019-01797-1

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  • Guar gum
  • Essential and trace elements
  • Arid region
  • Atomic absorption spectrometer