DETERMINATION OF THE CONCENTRATION OF SELECTED ESSENI TAL AND TOXIC METALS IN FENUGREEK SEED (TRIGONELLA FOEN UM-GRAECUM L.): THE CASE OF SOUTH GONDAR ZONE, AMHARA  REGIONAL STATE, ETHIOPIA

NEGA, ABEBE

dc.contributor.author	NEGA, ABEBE
dc.date.accessioned	2021-07-27T07:49:43Z
dc.date.available	2021-07-27T07:49:43Z
dc.date.issued	2021-07-27
dc.identifier.uri	http://ir.bdu.edu.et/handle/123456789/12266
dc.description.abstract	The concentration of selected essential and toxic metals (Ca, Zn, Co, Pb and Cd) in Fenugreek seed (Trigonellafoenum-graecum L) samples collected fromfoursites in a South Gondar Zone were determined using ICP -OES. A composite Fenugreek (Trigonella foenum graecum L.) seed samples were collected from four districts in three localites from three farmers in Simada,Fareta ,Libokmekme and Ebinate districts of south Gondar zone, Amhara Regional state, Ethiopia to det ermine the concentration of essential (Ca, Zn, Co) and toxic (Pb and Cd) metals. The collected samples preserved in sealed plastic bag before transported to the lab for analysis. Then each of the composite samples were digested using wet digestion method (hot plate) by applying optimize d procedure, 0.5 g of Fenugreek seed flour using a total of 12mL mixture of acid was used, in 5:1 (v/v) ratio of HNO3 (67 -70%) and HClO4 (70%), 20 minute pre -digestion and a total of 3:00 ho urs digestion time was taken at a temperature of about 170o c.The essential and toxic metals were analyzed by using inductively Coupled Plasma Optical Emission Spectroscopy (ICP -OES). Five elements were determined, obtained the concentration in the following range: Ca (911 -1363 mg/ kg), Zn (24.1 -50.5 mg/kg), Pb (ND-2.9 mg/kg), Co (0.13- 0.37 mg/kg), But Cd in all sample site were below the detection limit.The good recovery of metals in range (100_115%) except Ca. The finding of this study showed that Fenugreek seed contains low concentration Pb and minimum concentration of Zn and Co, but richin Ca Therefore it is safe for consumers. Key words: Essential Metals, Fenugreek Seed, Inductively Coupled Plasma Optical Emission Spectroscopy, Toxic Metals, TrigonellaFoenum-Graecum L.	en_US
dc.language.iso	en	en_US
dc.subject	Chemistry	en_US
dc.title	DETERMINATION OF THE CONCENTRATION OF SELECTED ESSENI TAL AND TOXIC METALS IN FENUGREEK SEED (TRIGONELLA FOEN UM-GRAECUM L.): THE CASE OF SOUTH GONDAR ZONE, AMHARA REGIONAL STATE, ETHIOPIA	en_US
dc.type	Thesis	en_US