Microwave assisted determination of minerals and toxic metals in traditionally used medicinal plant Zingiber officinale Roscoe by Inductively Coupled Plasma-Optical Emission Spectrometer

Manuscript History: Seventeen minerals (Ba, Be, Bi, B, Ca, Co, Cr, Cu, Fe, Mg, Mn, Mo, Ni, Se, Ag, Sr and Zn) and four toxic metals (As, Cd, Pb and Hg) were determined first time in the rhizome of Zingiber officinale Roscoe. The rhizomes were irradiated with microwave in a Microwave Reaction System with nitric acid and analysed by Inductively Coupled Plasma-Optical Emission Spectrometer. The mean concentration (mg/100g±SE) of minerals in the rhizome of Z. officinale were Ba 3.83±0.02, Be ND, Bi ND, B 0.47±0.24, Ca 39.70±0.57, Co 0.01±0.003, Cr 1.14±0.03, Cu 0.56±0.08, Fe 18.63±0.02, Mg 286.78±10.17, Mn 5.06±0.04, Mo 0.08±0.002, Ni 0.55±0.02, Se ND, Ag ND, Sr 2.11±0.21 and Zn 1.47±0.21 and toxic metals were As ND, Cd 0.01±0.003, Pb 0.20±0.16 and Hg ND. Results obtained revealed that Z. officinale rhizome has higher concentration of magnesium, calcium and iron with traces of other elements. Moreover, cadmium and lead were also present. On the basis of data obtained it can be concluded that Z. officinale rhizome has worthy nutritive elemental profile and can be a source of balanced elemental requisite of diet albeit it should be tested for toxic metals load before processing it further for medication.

[1]  Isaac Kwesi Nooni,et al.  The heavy metal contents of some selected medicinal plants sampled from different geographical locations , 2013, Pharmacognosy research.

[2]  J. Prohaska Impact of copper limitation on expression and function of multicopper oxidases (ferroxidases). , 2011, Advances in nutrition.

[3]  Tushar,et al.  Ethnomedical uses of Zingiberaceous plants of Northeast India. , 2010, Journal of ethnopharmacology.

[4]  A. Bernard,et al.  Cadmium & its adverse effects on human health. , 2008, The Indian journal of medical research.

[5]  S. F. Clark Iron deficiency anemia. , 2008, Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition.

[6]  Lynne Cobiac,et al.  Health benefits of herbs and spices: the past, the present, the future , 2006, The Medical journal of Australia.

[7]  S. Ortolani,et al.  Strontium ranelate: an increased bone quality leading to vertebral antifracture efficacy at all stages. , 2006, Bone.

[8]  Wei-hao Wang,et al.  [Studies of commonly used traditional medicine-ginger]. , 2005, Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica.

[9]  S. Ferreira,et al.  Factorial Design and Doehlert Matrix in Optimization of Flow System for Preconcentration of Copper on Polyurethane Foam Loaded with 4‐(2‐Pyridylazo)‐resorcinol , 2004 .

[10]  M. Soylak,et al.  Comparison of sample preparation procedures for the determination of trace heavy metals in house dust, tobacco and tea samples by atomic absorption spectrometry. , 2004, Annali di chimica.

[11]  Benli Huang,et al.  Concentrations of Hazardous Heavy Metals in Environmental Samples Collected in Xiamen, China, as Determined by Vapor Generation Non-dispersive Atomic Fluorescence Spectrometry , 2004, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry.

[12]  M. Ando,et al.  Survey of arsenic and other heavy metals in food composites and drinking water and estimation of dietary intake by the villagers from an arsenic-affected area of West Bengal, India. , 2003, The Science of the total environment.

[13]  J. Reginster,et al.  Strontium ranelate phase 2 dose-ranging studies: PREVOS and STRATOS studies , 2003, Osteoporosis International.

[14]  M. Tuzen A COMPARISON OF SAMPLE PREPARATION PROCEDURES FOR THE DETERMINATION OF HEAVY METALS IN LICHEN SAMPLES BY GFAAS , 2002 .

[15]  A. Rawat,et al.  Heavy Metal Accumulation in Some Herbal Drugs , 2001 .

[16]  H. Schindelin,et al.  Insights into molybdenum cofactor deficiency provided by the crystal structure of the molybdenum cofactor biosynthesis protein MoaC. , 2000, Structure.

[17]  M. Aschner Manganese: brain transport and emerging research needs. , 2000, Environmental health perspectives.

[18]  P. Bode,et al.  Effect of acid digestion method on cobalt determination in plant materials , 2000 .

[19]  P. Trumbo,et al.  Dietary reference intakes: vitamin A, vitamin K, arsenic, boron, chromium, copper, iodine, iron, manganese, molybdenum, nickel, silicon, vanadium, and zinc. , 1998, Journal of the American Dietetic Association.

[20]  H. Kingston,et al.  Microwave energy for acid decomposition at elevated temperatures and pressures using biological and botanical samples. , 1986, Analytical chemistry.

[21]  E. Somers THE TOXIC POTENTIAL OF TRACE METALS IN FOODS. A Review , 1974 .

[22]  Maurice E. Shils,et al.  Modern Nutrition in Health and Disease , 1965, Diabetes.

[23]  Aleksandra Duda-Chodak,et al.  The impact of nickel on human health , 2008 .

[24]  V. Naithani,et al.  Heavy Metal Content in Some Therapeutically Important Medicinal Plants , 2004, Bulletin of environmental contamination and toxicology.

[25]  R. Miniero,et al.  [Effects of the combined deficiency of selenium and iodine on thyroid function]. , 1998, Annali dell'Istituto superiore di sanita.

[26]  M. Gershwin,et al.  Zinc deficiency and immune function. , 1990, Annual review of nutrition.

[27]  F. Nielsen Studies on the relationship between boron and magnesium which possibly affects the formation and maintenance of bones. , 1990, Magnesium and trace elements.

[28]  Alan J. M. Baker,et al.  TERRESTRIAL HIGHER PLANTS WHICH HYPERACCUMULATE METALLIC ELEMENTS. A REVIEW OF THEIR DISTRIBUTION, ECOLOGY AND PHYTOCHEMISTRY , 1989 .

[29]  Evans Hj,et al.  Nickel as a micronutrient element for plants. , 1988 .

[30]  R. Anderson,et al.  Nutritional role of chromium. , 1981, The Science of the total environment.