scholarly journals Antioxidants, Microbial Load and Heavy Metal Contents of Some Sachet Tomato Paste Obtained in Lagos State, Nigeria

2021 ◽  
Vol 25 (4) ◽  
pp. 631-636
Author(s):  
O.O. Eleyowo ◽  
O.D. Amusa
Keyword(s):  
Heavy Metal ◽  
Vitamin C ◽  
Microbial Load ◽  
Tomato Paste ◽  
Consumer Safety ◽  
First Choice ◽  
Metal Contents ◽  
Lagos State ◽  
Tomato Products ◽  
Β Carotene

Tomato paste is fast becoming first choice for many homes in cooking while meeting up with their busy  schedules in a cosmopolitan city like Lagos State, Nigeria. The study was aimed at evaluating the antioxidant contents, microbial load and heavy metal contents of both unprocessed and processed tomato products. β-carotene, lycopene and vitamin C contents were analysed accordingly on selected sachet tomato paste. Microbial colony counts were done using both nutrient agar and potatoes dextrose agar. Heavy metals from sampled tomato products were done using Atomic Absorption Spectrometry. The study observed β-carotene ranged between 0.02 – 0.52 mg/g, lycopene ranged between 0.12 – 0.56 mg/g and vitamin C contents of ranged between 12.50 – 75.0 mg/mL. These were more than WHO/FAO and FEPA recommendations. All tomatoes samples showed microbial load higher than limits allowable. Bacillus sp., Salmonella sp., Aspergillus sp. were predominantly isolated from sampled processed tomato products. Cadmium contents were above the permissive limit in some of the tomato paste products. Copper, zinc, lead, nickel, chromium and iron were not detected in all samples evaluated. The study showed few processed tomato products were safe for  consumption. Hence, monitoring by regulatory agencies for consumer safety regulations is highly  recommended on processed tomato producers.

scholarly journals Potential Health Risks of Heavy Metal Contents in Bottled Water from Lagos State and Its Environs, Nigeria

2018 ◽  
Vol 173 ◽  
pp. 012021
Author(s):  
Omeje Maxwell ◽  
O. Adewoyin Olusegun ◽  
S. Joel Emmanuel ◽  
T.A. Okolie Sociis ◽  
Ayowe Omorotemu Efemena ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Health Risks ◽  
Bottled Water ◽  
Potential Health ◽  
Metal Contents ◽  
Lagos State

scholarly journals Heavy Metal Contents in the Soil and Leaves of Different Vegetables in Lagos State, Nigeria

2019 ◽  
Vol 12 (3) ◽  
pp. 108-113
Author(s):  
Fatai Olakunle Ogundele ◽  
Anthony Inah Iwara ◽  
Chidinma Joy Jeremiah
Keyword(s):  
Heavy Metal ◽  
Metal Contents ◽  
Lagos State

scholarly journals Comparative analysis of concentrated tomato products on carotenoid content

2019 ◽  
Vol 48 (2) ◽  
pp. 162-169
Author(s):  
Елена Белокурова ◽  
Elena Belokurova ◽  
Илона Панкина ◽  
Ilona Pankina
Keyword(s):  
Human Body ◽  
Experimental Studies ◽  
Biologically Active ◽  
Carotenoid Content ◽  
Direct Proportion ◽  
Food Ration ◽  
Tomato Paste ◽  
Tomato Products ◽  
Active Substances ◽  
Β Carotene

Resent scientific works demonstrate that population physical health depends on food quality. One of the important modern problems is lack of biologically active substances such as vitamins, antioxidants, and mineral substances in food. Many of them cannot be synthesized by the human body and must come with food. Tomato paste can be the source of the antioxidants necessary for the human body. The purpose of this work was to determine the content of carotenoids in tomato paste samples. Tomato paste contains a significant amount of carotenoids, mainly β-carotene and lycopene. As a result of experimental studies, the author determined the content of carotenoids, β-carotene and lycopene in tomato paste samples produced in Russia and abroad. It was found out that there is a direct proportion between the content of carotenoids and β-carotene: the higher the content of carotenoids, the higher the content of β-carotene. Proportion of β-carotene in all studied samples is a little more than 12% of the total amount of carotenoids. Consumption of concentrated tomato products by different age and social population groups in Russia will help improve food ration by means of providing β-carotene and lycopene according to the physiological requirements in nutrients

Evaluation of Heavy Metal Contents in Mudflat Solar Salt, Salt Water, and Sea Water in the Nationwide Salt Pan

2012 ◽  
Vol 41 (7) ◽  
pp. 1014-1019 ◽  
Author(s):  
Hag-Lyeol Kim ◽  
Young-Joo Yoo ◽  
In-Sun Lee ◽  
Gang-Hee Ko ◽  
In-Cheol Kim
Keyword(s):  
Heavy Metal ◽  
Sea Water ◽  
Salt Water ◽  
Solar Salt ◽  
Metal Contents ◽  
Salt Pan

Heavy Metal Contents and Safety Evaluation of Commercial Salts in Seoul

2012 ◽  
Vol 41 (1) ◽  
pp. 129-135 ◽  
Author(s):  
Ae-Kyung Kim ◽  
Sung-Ja Cho ◽  
Jae-Eun Kwak ◽  
Jin-Young Kum ◽  
Il-Young Kim ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Safety Evaluation ◽  
Metal Contents

Effect of some Soil Properties on Heavy Metal Contents in Soil Qena Governorate.

2017 ◽  
Vol 8 (9) ◽  
pp. 401-409
Author(s):  
M. Ibrahim ◽  
A. Abd El-Galil ◽  
O. Negim ◽  
M. Nazir
Keyword(s):  
Heavy Metal ◽  
Soil Properties ◽  
Metal Contents

Metallic pollution in clogging materials of urban porous pavements

1995 ◽  
Vol 32 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Valérie Colandini ◽  
Michel Legret ◽  
Yves Brosseaud ◽  
Jean-Daniel Baladès
Keyword(s):  
Heavy Metal ◽  
Particle Size ◽  
Road Traffic ◽  
Total Concentration ◽  
Extraction Procedure ◽  
Interaction Strength ◽  
Metal Mobility ◽  
Residual Fraction ◽  
Metal Contents ◽  
Copper Zinc

Porous pavements infiltrated with stormwater are faced with clogging problems: runoff particles seep and clog the pervious surface layer of these structures. Clogging material samples (in the form of sludge) have been collected in cleaning operations on the pervious asphalt. This study aims at characterizing these materials, particle size distribution, heavy metal contents by particle size, and studying interactions between metals and particles. A sequential extraction procedure proposed by the experts of the Community Bureau of Reference (B.C.R.) was applied to provide information about heavy metal distribution on particles and to evaluate interaction strength, and consequently potential metal mobility when chemical variations occurred in the environment. Mainly made up of sand, the materials are polluted with lead, copper, zinc and cadmium. The concentrations appeared to be linked with road traffic intensity. The heavy metal contents by particle size showed that the finer are the particles, the higher are the heavy metal concentrations. Heavy metals were found potentially labile; metals contents in the residual fraction (mineral fraction) represented less than 20 % of the total concentration. Cadmium and zinc were apparently more labile than lead and copper.

scholarly journals Heavy metal levels in cattle egrets (Bubulcus ibis) foraging in some abattoirs in Lagos State metropolis

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Elijah Abakpa Adegbe ◽  
Oluwaseyi Oluwabukola Babajide ◽  
Lois Riyo Maina ◽  
Shola Elijah Adeniji
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Accumulation ◽  
Heavy Metal Contamination ◽  
Heavy Metal Accumulation ◽  
Bubulcus Ibis ◽  
Significant Difference ◽  
Metal Levels ◽  
Lagos State ◽  
The Mean

Abstract Background Heavy metal accumulation in the ecosystem constitutes a potential toxic effect which is hazardous to human health. Increasing environmental pollution has necessitated the use of cattle egrets to evaluate the levels of heavy metal contamination, to establish their use in biomonitoring of heavy metals and to provide data for monitoring pollution in the environment. Results The present study assessed the utilization of Bubulcus ibis in monitoring pollution in five abattoirs, namely Agege, Bariga, Kara, Itire and Idi-Araba, all situated in Lagos State. The concentration of five (5) heavy metals, cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb) and zinc (Zn) was determined in the liver, muscle and feather of Bubulcus ibis using the atomic absorption spectrophotometer. The trend of metal accumulation was in the order: Zn > Cu > Pb > Cd > Ni for all the sampled tissues. The mean tissue concentrations of the metals were significantly different (p < 0.05) among the sites. The highest levels of metal concentration were reported in the liver in all the locations. Mean concentration of Cd in Kara (0.003 ± 0.00058) was significantly (p < 0.05) higher than those found at Agege (0.0013 ± 0.00058) and Idi-Araba (0.001 ± 0.001). A significant difference (p < 0.05) was also observed between the mean concentrations of Cu in Bariga (0.01 ± 0.001) and Idi-Araba (0.003 ± 0.001). Conclusion All the studied heavy metals were present in the liver, muscle and feathers of the cattle egrets. The contamination levels were ascertained from the study which indicated that cattle egrets are useful in biomonitoring studies and the generated data will serve as baseline data which could be compared with data from other locations for monitoring heavy metal pollution.

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