scholarly journals Proximate and Mineral Elements Composition of Three Forest Fruits Sold in Port Harcourt, Nigeria

2021 ◽  
Vol 24 (11) ◽  
pp. 1899-1908
Author(s):  
AT Oladele ◽  
EAU Ofodile ◽  
BT Udi ◽  
GO Alade
Keyword(s):  
Heavy Metals ◽  
Trace Metals ◽  
Mineral Elements ◽  
Nutritional Composition ◽  
Human Consumption ◽  
High Concentration ◽  
Fruit Species ◽  
Port Harcourt ◽  
Excessive Consumption ◽  
Healthy Growth

This study aimed to assess the nutritional and trace elements composition of selected forest fruits sold for human consumption in Port Harcourt. Fruit contamination by heavy metals is an issue of global concern. Nondegradable elements bioaccumulations in tissues and organs have deleterious effects in man. Three (3) Agroforestry fruits species; (Spondias cytherea L. (Anacardiaceae), Syzygium malaccense (L.) Merr. & L. M. Perry Myrtaceae and Cola pachycarpa K. Schum. Malvaceae) were purposefully selected and sourced from three strategically located markets namely; Oil mill, Choba and D/line fruit markets. The fruit species were procured and washed with distilled water and the edible parts extracted, chopped and sun dried properly. The nutritional composition was analyzed using 18th edition of the Association of Official Analytical Chemist while trace metals were analysed using PIXE Accelerator. Spondias cytherea yielded high percentage of crude Protein (8.373±0.1) and Fibre content (11.73±0.03), while Syzygium malaccense was rich in Fat (7.17±0.02) and Ash (4.17±0.04). Moisture content was highest in Cola parchycarpa (12.63±0.05). PIXE Accelerator analysis revealed that the fruits contain high concentration of trace metals; S. malaccense contained Mg (1170±237.0ppm), Si (60.02±68.95ppm), Al (14.89±7.71ppm), Fe (10. 60±4.11ppm), Rb (3.20±0.00ppm) and Ti (1.82±0.00ppm). C. parchycarpa had Zn (6.22±11.80ppm), Cr (1.60±0.75 ppm), Mn (0. 71±0.87ppm) and Cu (0.38±0.33ppm). Ni (0.16 ppm) was found only in S. cytherea fruit. The forest fruits are rich in nutrients vital for healthy growth but the level of heavy metals (Mg, Al. Cr, Fe and Zn) in each of the fruits were above WHO/FAO permissible limit, therefore excessive consumption on a daily/weekly routine should be avoided. Keywords: Forest fruits, proximate, heavy metals, human health

scholarly journals High Concentration of Heavy Metal and Metalloid Levels in Edible Campomanesia adamantium Pulp from Anthropic Areas

2021 ◽  
Author(s):  
David Johane Machate ◽  
Elaine S. Pádua Melo ◽  
Daniela G. Arakaki ◽  
Rita de Cássia Avellaneda Guimarães ◽  
Priscila Aiko Hiane ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Hazard Quotient ◽  
Mineral Elements ◽  
Human Consumption ◽  
Icp Oes ◽  
High Concentration ◽  
Microwave Assisted ◽  
Total Cancer ◽  
Metals And Metalloid

This study aimed to quantify the extent of heavy metal, non-metal and metalloid level of Campomanesia adamantium pulp obtained from area crossed by road of the high large vehicle traffic and intensive agriculture modern farm, and for monitoring the health risks associated with pulp human consumption. For this purpose, three spots located between this area, ripe fruits were collected in roadside, bush and margin-farm. Pulp samples were digested by microwave-assisted equipment, and mineral elements were quantified by ICP OES. The mineral elements average demonstrated no statistical difference observed between this pulp (p > 0.05). The heavy metals and metalloid concentrations that exceeded FAO/WHO standards are ordered Pb > As > Mo > Co > Ni > Mn > Cr. Therefore, among these metalloid and heavy metals, As, Pb and Cr were found higher in farm-margin > roadside > bush (1.5 × 10-3, 1.1 × 10-3 and 6.2 × 10-4) respectively. Therefore, As is the most important metalloid with higher levels in farm-margin, roadside and bush (1.5 × 10-3, 1.1 × 10-3 and 6.2 × 10-4 > 10-6–10-4 and 3.33, 2.30 and 1.34 > 1) respectively, to total cancer risk and hazard quotient, if 100 g daily of pulp are consumed.

Determination of Contaminated Heavy Metals in Lacquer Thinner

2018 ◽  
Vol 879 ◽  
pp. 144-148
Author(s):  
Woravith Chansuvarn ◽  
Kunawoot Jainae
Keyword(s):  
Heavy Metals ◽  
Trace Metals ◽  
Absorption Spectrometry ◽  
High Concentration ◽  
X Ray ◽  
Wet Digestion ◽  
Clear Solution ◽  
Cu And Zn

The aim of this work needed to discover the problem of lacquer thinner products claimed with dissatisfying the quality of coating and color appearance. The trace metals produced cans was focused on release to solvents. The contaminated trace metals including Fe, Sn, Cu, and Zn in lacquer thinner were also determined by atomic absorption spectrometry (AAS). The lacquer thinner samples were simply carbonized to be ashes by furnace muffle at 550°C for 8 hours. The carbonized ashes were then also digested by conventional wet digestion with concentrated nitric acid until a clear solution was archived. Twenty samples of lacquer thinner were achieved from the paint manufacturer. The content of Fe, Sn, Cu, and Zn was found in the range of 0.0631-77.190 mg/kg, ND-12.613 mg/kg, ND-1.4679 mg/kg, and ND-0.4028 mg/kg, respectively. The result of high concentration of Fe related to the appearance of lacquer thinner color. The evidence of released heavy metals in the ashes of lacquer thinner samples was evaluated by X-ray fluorescence technique. The result of this work was concluded that the contaminated trace metals in the suspected lacquer thinner samples were leached from the metallic package.

scholarly journals Assessment of Heavy Metal Concentrations in Pawpaw (Carica papaya Linn.) around Automobile Workshops in Port Harcourt Metropolis, Rivers State, Nigeria

2017 ◽  
Vol 7 (14) ◽  
pp. 48-61 ◽  
Author(s):  
Olatunde Sunday Eludoyin ◽  
Onisoya Margaret Ogbe
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Carica Papaya ◽  
World Health ◽  
Human Consumption ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Port Harcourt ◽  
Supporting Soil ◽  
Rivers State

Background. Consumption of plants such as Carica papaya grown around automobile workshops is common in big cities in Nigeria. However, little is known about the heavy metals contamination of these consumables due to the influence of automobile emissions during maintenance activities. Objectives. This study aimed to assess heavy metal concentrations in C. papaya and supporting soils around automobile workshops in Port Harcourt Metropolis, Rivers State, Nigeria. Methods. Seven automobile workshops were used for the present study. First, 20 m × 20 m quadrats were laid out for soil and C. papaya tissue sampling. One composite soil sample was collected from the topsoil (0–15 cm depth) around each of the automobile workshops. Three C. papaya stands at least 30 cm apart around each workshop were used for the study and from these stands, tissues (root, stem, leaf, fruit) of C. papaya were collected. Standard laboratory techniques were used to determine the pH, electrical conductivity (EC) and heavy metals (lead (Pb), mercury (Hg), cadmium (Cd), copper (Cu), and zinc (Zn)) in the soil samples and C. papaya tissues. Pairwise t-test was used to determine significant differences (p<0.05) in the heavy metal concentrations in soil and C. papaya tissues between the sample and control sites, while correlation statistics were used to determine the relationship of heavy metal concentrations between soil and C. papaya tissues. Results. C. papaya tissues and supporting soil had significantly higher levels of pH, EC and heavy metals in the sampled plots than the control plot. The heavy metal concentrations in C. papaya and soil occurred in the decreasing order of Pb>Cu>Hg>Zn>Cd. The fruit of C. papaya had the highest mean concentrations of Pb (51.4±14.1 mg/kg) and Zn (26.4±1.9 mg/kg), while the leaf had the highest mean concentration of Hg (32.0±2.3 mg/kg). The pH, Cu and Zn in the supporting soil were significantly correlated with the levels in the C. papaya tissues. Conclusion. Bio-accumulation of heavy metals by C. papaya is evident around automobile workshops, and Pb, Hg, Cd concentrations were found to be above the permissible limits for human consumption according to World Health Organization (WHO) standards. Consumption of food materials grown around automobile workshops could pose health risks. Competing interests. The authors declare no competing financial interests.

scholarly journals Nutritional Characteristics Assessment of Sunflower Seeds, Oil and Cake. Perspective of Using Sunflower Oilcakes as a Functional Ingredient

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2487
Author(s):  
Ancuţa Petraru ◽  
Florin Ursachi ◽  
Sonia Amariei
Keyword(s):  
Unsaturated Fatty Acids ◽  
Mineral Elements ◽  
Nutritional Composition ◽  
Human Consumption ◽  
Sunflower Seeds ◽  
Food Ingredient ◽  
Nutritional Characteristics ◽  
The Rich ◽  
Amino Acids Profile ◽  
Cold Pressed

Ample amounts of by-products are generated from the oil industry. Among them, sunflower oilcakes have the potential to be used for human consumption, thus achieving the concept of sustainability and circular economy. The study assessed the nutritional composition of sunflower seeds, cold-pressed oil and the remaining press-cakes with the aim of its valorization as a food ingredient. Sunflower oil contains principally oleic (19.81%) and linoleic (64.35%) acids, which cannot be synthetized by humans and need to be assimilated through a diet. Sunflower seeds are very nutritive (33.85% proteins and 65.42% lipids and 18 mineral elements). Due to the rich content of lipids, they are principally used as a source of vegetable oil. Compared to seeds, sunflower oilcakes are richer in fibers (31.88% and 12.64% for samples in form of pellets and cake, respectively) and proteins (20.15% and 21.60%), with a balanced amino acids profile. The remaining oil (15.77% and 14.16%) is abundant in unsaturated fatty acids (95.59% and 92.12%). The comparison between the three products showed the presence of valuable components that makes them suitable for healthy diets with an adequate intake of nutrients and other bioactive compounds with benefic effects.

scholarly journals Study of Pollution Levels of heavy metals residues in the locally produced cheese & emulsifying salts

2010 ◽  
Vol 34 (2) ◽  
pp. 188-193
Author(s):  
Ahmed M.S. Al-Shdidi
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Dairy Products ◽  
Atomic Absorption Spectrophotometer ◽  
Human Consumption ◽  
High Concentration ◽  
Pollution Levels ◽  
Random Samples ◽  
Emulsifying Salts

The study was conducted to indicate the compartive measurements of heavy metals residues levels were detected by Atomic Absorption Spectrophotometer in 10 random samples of locally processed cheeses and in 20 random samples of emulsifying salts collectd from different areas in Baghdad , results showed that such cheese of low quality and did not meet both local and international Dairy products standards , Such findings of high concentration of heavy metals residues indicate that the emulsifying salts used in processing were not nutritional but of industrial origin and unfit for human consumption . The results show that is the concentration *[p.p.m.] of heavy metals residues **(±MD) in the locally processed cheeses samples were < 0.1±0.001 p.p.m. for both of Cd. & Mn. , 3.5±0.28 p.p.m. for Fe. , < 0.05±0.001 p.p.m. for Pb. , 7.3±0.3 p.p.m. for Zn. & 0.24±0.01p.p.m. for Cu. .. While the concentration *[p.p.m.] of heavy metals residues **(±MD) in the Emulsifying salts were 1.55±0.145 p.p.m. for Cd. , 1.7±0.16 p.p.m. for Mn. , 16±1.12 p.p.m. for Fe. , 3.15±0.275 p.p.m. for Pb. , 233.1±5.6 p.p.m. for Zn. & 1.95±0.085 p.p.m. for Cu.

scholarly journals Nutritional Composition of ‘Aju Mbaise’ Herbal Cocktail

2020 ◽  
pp. 30-37
Author(s):  
T. A. Nnadiukwu ◽  
C. C. Monago- Ighorodje ◽  
L. C. Chuku
Keyword(s):  
Crude Protein ◽  
Nutritional Value ◽  
Good Health ◽  
Proximate Analysis ◽  
Nutritional Composition ◽  
High Concentration ◽  
Port Harcourt ◽  
Calcium Magnesium ◽  
Xylopia Aethiopica ◽  
Sodium Zinc

This study was carried out to evaluate the nutritional content of ‘Aju Mbaise’ herbal mixture. The experiment involves the collection of fresh plant samples that make up ‘Aju Mbaise’ cocktail. The study was done in the Research Laboratory of the Department of Biochemistry, Faculty of Science, University of Port Harcourt, Nigeria. The plants samples were collected from Mbaise locality in Imo State, Nigeria, and were identified as Cnestis ferruginea, Xylopia aethiopica, Uvaria chamae, Palisota hirsuta, Scleria sp., Napoleona imperialis, Dialium guineense, Combretum racemosun, and Heterotis rotundifolia respectively. The dietary, mineral, and vitamin compositions were determined accordingly. The proximate, vitamin, and mineral composition of the herbal cocktail were investigated in line with their standard methods of analysis. The proximate analysis revealed that the cocktail extract contains carbohydrate (69.51%), crude protein (10.05%), moisture (8.89%), crude fat (5.17%), fibre (3.745), and ash content (2.65%). The vitamin analysis revealed reasonable concentration of vitamins A, B1, B2, B3, B6, B12, C, D, and K. The mineral evaluation showed high concentration of calcium, magnesium, potassium, sodium, zinc, and iron. This study revealed high nutritional value of ‘Aju Mbaise’ herbal cocktail which is responsible for the plant’s usefulness in the management, treatment, as well as maintenance of good health.

Schwermetalle in Höheren Pilzen, III * Vanadium und Molybdän / Heavy Metals in Higher Fungi, II I. Vanadium and Molybdenum

1978 ◽  
Vol 33 (1-2) ◽  
pp. 1-6 ◽  
Author(s):  
Hans-Ulrich Meisch ◽  
Johannes A. Schmitt ◽  
Wolfgang Reinle
Keyword(s):  
Heavy Metals ◽  
Trace Metals ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Related Species ◽  
High Concentration ◽  
Amanita Muscaria

Abstract In several series of 212 samples, higher fungi, especially from the genus Amanita and related genera, were analyzed by atomic absorption spectroscopy on their content of the trace metals vanadium and molybdenum. Only vanadium was found to be present in high concentration in the fly agaric mushroom (Amanita muscaria), while 22 of its related species showed the normal V-content of the higher fungi tested. A correlation with the presence of molybdenum could not be detected. A special enrichment of Mo was not found in higher fungi. The analysis of several fruit bodies from A. muscaria showed that the highest V-content was present in the bulb and in the lamellae, both contents increasing with age, while the spores contained only 1 - 2% of the lamellar vanadium.

scholarly journals Bioaccumulation of Lead in Rohu (Labeo rohita) Fish Collected from Four Different Locations of Yamuna River in Delhi Region

2021 ◽  
Vol 33 (12) ◽  
pp. 3070-3074
Author(s):  
Sapna Gupta ◽  
Vartika Singh ◽  
M.L. Aggarwal
Keyword(s):  
Heavy Metals ◽  
Labeo Rohita ◽  
Human Consumption ◽  
Terrestrial Plants ◽  
High Concentration ◽  
Yamuna River ◽  
Aquatic Animals ◽  
Permissible Limits ◽  
Persistent Pollutants ◽  
Different Tissues

Heavy metals are ubiquitous and persistent pollutants thus pose a huge risk in nature. Lead is one such heavy metals, which is known to cause many lethal/sub-lethal toxicities in aquatic animals. Lead is also known to cause phytotoxicities in aquatica and terrestrial plants. This study is an attempt to identify the bioaccumulation of lead in Labeo rohita and the location differences of the bioavailability in different tissues. High concentration and bioaccumulation were observed in specimens collected from various locations and found to be higher than the permissible limits for human consumption.

ASSESSMENT OF HEAVY METAL CONCENTRATION IN COCONUT WATER

1970 ◽  
pp. 07-10
Author(s):  
MdDidarul Islam, Ashiqur Rahaman, Aboni Afrose
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Concentration ◽  
Coconut Water ◽  
Toxic Heavy Metals ◽  
High Concentration ◽  
Toxic Heavy Metal ◽  
Low Concentration ◽  
Wet Ashing ◽  
Aas Method

This study was based on determining concentration of essential and toxic heavy metal in coconut water available at a local Hazaribagh area in Dhaka, Bangladesh. All essential minerals, if present in the drinking water at high concentration or very low concentration, it has negative actions. In this study, fifteen samples and eight heavy metals were analyzed by Atomic Absorption Spectroscopy (AAS) method which was followed by wet ashing digestion method. The concentration obtained in mg/l were in the range of 0.3 to 1.5, 7.77 to 21.2, 0 to 0.71, 0 to 0.9, 0 to 0.2, 0.9 to 17.3, 0.1 to 0.9, 0 to 0.9 and 0 to 0.7 for Fe, Ni, Cu, Cd, Cr, Zn, Pb and Se respectively. From this data it was concluded that any toxic heavy metals like Cd, Cr, Pb and Ni exceed their toxicity level and some essential nutrients were in low concentration in those samples. 

Assessment of micro and macro nutrients in poultry feeds available in Dhaka city, Bangladesh.

2017 ◽  
Vol 1 ◽  
pp. 264
Author(s):  
Md Didarul Islam ◽  
Ashiqur Rahaman ◽  
Fahmida Jannat
Keyword(s):  
Heavy Metals ◽  
Adverse Effect ◽  
The Other ◽  
Nutrient Level ◽  
Dhaka City ◽  
Toxic Heavy Metals ◽  
High Concentration ◽  
Low Concentration ◽  
Feed Formulation ◽  
Macro Nutrients

This study was based on to determine the concentration of macro and micro nutrients as well as toxic and nontoxic heavy metals present in the chicken feed available in Dhaka city of Bangladesh. All macro nutrients, if present in the feed at high concentration have some adverse effect, at the same time if this nutrient present in the feed at low concentration this have some adverse effect too. So that this nutrient level should be maintained at a marginal level. On the other side toxic heavy metals if present in the feed at very low concentration those can contaminate the total environment of the ecosystem. In this study six brand samples (starter, grower, finisher and layer) which was collected from different renowned chicken feed formulation industry in Bangladesh. Those samples were prepared for analysis by wet ashing and then metals were determined by Atomic Absorption Spectroscopy. It was found that 27.7 to 68.4, 57.3 to 121.9, 0.21 to 4.1, 0.32 to 2.1, 0.11 to 1.58, 0.28 to 2.11 and 0.28 to 1.78 for zinc, iron, copper, mercury, cadmium, nickel and cobalt respectively. It was found that essential macro and micro nutrients were present in the feed in low concentration on the other side mercury was present in high concentration in the feed samples.

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