Studies of Essential and Trace Elements in Some Fruits and Vegetables of Southwestern 
 Bangladesh by PIXE Technique

Rahman, Mohammad Lutfur; Shariff, Md. Asad; Rahman, Mahinur; Uddin, M. S.; Shafiq, A. K. M.; Shameem, M. A.; Hasan, Md. Mahadi; Hasan, Shanur Jahedul; Huq, Md. Amdadul

doi:10.3923/pjn.2014.62.66

Cited by 8 publications

(5 citation statements)

References 9 publications

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“…The value of 11.18% in C. oliterius leaves shows how rich the vegetable is in nutritionally important minerals, such as potassium, calcium, sodium, magnesium, phosphorus, zink, copper, iron and selenium. Minerals are utilized by the body in many ways and they play vital roles in the nutritional development of humans and animals (Rahman et al, 2014). The result of this work differed from Onwordi et al (2006) who had 21.20±0.80% as ash content.…”

Section: Discussioncontrasting

confidence: 63%

Phytochemical analysis, proximate composition and antinutritional factors of <i>Corchorus oliterius</i> plant

Sha’a¹,

Clarkson²,

Artimas³

2019

Int. J. Bio. Chem. Sci

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Leafy vegetables play a major in meeting the dietary requirement of an average Nigerian. The knowledge of nutritional and antinutritional properties of these local plant resources therefore becomes necessary. This study was to conduct a phytochemical analysis, determination of proximate composition and antinutritional factors of Corchorus oliterius using standard procedures. The qualitative phytochemical analysis revealed the presence of saponins, terpenoids, flavonoids, alkaloids and phenols. Proximate analysis, which partitioned the nutrients into six components revealed the nutrients, thus, moisture (8.84±0.00%), ash (11.18±0.00%), crude protein (27.32±0.02%), crude fat (5.64±0.01%), and crude fibre (5.84±0.02, and nitrogen free extractives (NFE) (41.16±0.00%). Antintritional factors were recorded, thus; oxalate (241.96±0.0 2mg/100g), saponins (0.68±0.00%), tannins (18.16±0.00 mg/100g), cyanogenic glycosides (2.78±0.01 mg/100g), and phytate (0.80±0.00%). The presence of phytochemicals such as terpenoids, flavonoids alkaloids and phenols validates the use of C. olitrius in traditional and alternative medicines since phytochemicals found in fruits and vegetables are generally known for being responsible for protective health benefits in man and animals. This result showed that the vegetable was a promising source of protein in human diet if well processed. All the concentrations of antinutrients were found to be within acceptable levels for human and animal consumption. However, the levels of antinutrients can be reduced by traditional processing techniques such as boiling, steaming, cooking, to make it safer for human consumption.

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Section: Discussioncontrasting

confidence: 63%

Phytochemical analysis, proximate composition and antinutritional factors of <i>Corchorus oliterius</i> plant

Sha’a¹,

Clarkson²,

Artimas³

2019

Int. J. Bio. Chem. Sci

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“…Manganese is an antioxidant nutrient and is important in the breakdown of fats and cholesterol and also helps in the nourishment of the nerves and the brain [9]. Mn safe limit for daily intake is 2.0mg/day for an adult [3] and its recommended range in fruits and vegetables are 0.42-6.64mg/kg [10]. Mn is found in all fruits and vegetables samples.…”

Section: Resultsmentioning

confidence: 99%

“…Characterization of fruit and vegetable wastes as a single substrate for the anaerobic digestion was observed by [2]. The concentrations of chlorine (Cl), potassium (K), calcium (Ca), titanium (Ti), manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn) and bromine (Br) in fruits and vegetables measured by [3]. Mineral elements play a crucial role for the nutrition of human being.…”

Section: Introductionmentioning

confidence: 99%

Elemental Analysis of Some Selected Fruits and Vegetables Samples in Bangladesh

Rahman¹

2016

AJBES

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Some selected essential elements in some fruit and vegetables which are commonly consumed by all income groups of rural and urban people of Bangladesh. PIXE technique has been employed to perform essential and trace elemental analysis of Zn, Ca, Fe, K, Cl, Cu, Mn and Br in some fruits and vegetables of Rajshahi region of Bangladesh. The concentration of the elements in each fruits and vegetables are investigated that in fruits Psidium guajava contains the highest amount of Ca (66800mg/kg) and Averrhoa carambola contain highest of K (28950mg/kg). In vegetables highest amount of Ca and K are exhibited by Brassica rapa (30541mg/kg) and Solanum tuberosum (31098mg/kg) respectively. The Fe content fairly good in all fruit samples varying from 250.30mg/kg in Emblica officinalis to 545mg/kg in Carica papaya and all vegetables samples varying from 319mg/kg in Lagenaria siceraria to 9230mg/kg in Daucus carota. Zn content in the studied samples is highest in Artocarpus heterophyllus (65mg/kg) in fruit and Daucus carota 110.05mg/kg in vegetables. Mn is found in all fruits and vegetables samples. Among them in vegetables Daucus carota contains highest amount (10mg/kg) of Mn and in fruits Olea europea contain highest amount (9mg/kg) of Mn. Copper content in the studied samples is found only in Cucurbita moschata (26.87mg/kg) in vegetables and Averrhoa carambola (20.56mg/kg) in fruit which probably plays a role in prevention of inflammation, given that Cu is a useful anti-inflammatory agent. Highest CI content is found in vegetables in Solanum tuberosum (7890mg/kg) and Averrhoa carambola (4567mg/kg) in fruit. The minimum chloride requirement for a healthy adult is 700mg/day. Bromine only found in Lycopersicon esculentum (118mg/kg) in vegetables. In all over the world such analysis is running routinely to ensure the good health and quality of life of human being.

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“…The amounts of ash in both plants however, are relatively lower than the one of Corchorus oliterius-11.18% [48]. Mineral elements play a vital role in nutritional development of humans and animals [49]. [50].…”

Section: Nutritional Composition Of Leaf Extracts C Maxima and V Unguiculatamentioning

confidence: 99%

Evaluation and Comparison of the Antioxidant Activities and Nutritional Composition of Cucurbita maxima and Vigna unguiculata Leaf Extracts

Sha’a

2021

EJNFS

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Antioxidant activities and nutritional composition are essential ingredients normally considered in the choice of vegetables for human consumption. Leafy vegetables in particular, are regarded as protective foods in human diet due to their many health benefits. The aim of this research was to carry out the quantitative phytochemical screening, the antioxidant activities of extracts and determine the nutritional content of Cucurbita maxima and Vigna unguiculata leaves. Quantitative phytochemical screening were conducted using standard techniques. 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays were used to determine antioxidant activities of these extracts. Nutritional composition was determined using standard procedures. Quantitative analysis revealed the phytochemicals in C. maxima and V. unguiculata as; saponins (1.03%, and 1.34%), tannins (3.49% and 2.60%), terpenoids (0.0% and 0.47%), flavonoids (2.81% and 4.11%), alkaloids (5.72% and 3.5%), phenols (4.02% and 3.83%) respectively. There was a significant (p=0.05) difference in radical scavenging activity of ethanol leaf extract of V. unguiculata comprared to C. maxima. In FRAP both plants’ extract revealed a good antioxidant reducing power at 100mg/ml (range 0.40 to 0.5 absorbance) at 700nM. Antioxidant activities of extracts is attributed to their flavonoid and phenolic contents. Proximate analysis revealed the nutrients for C. maxima and V. unguiculata as; crude protein (11.58% and 14.83%), crude fat (0.47% and 0.61%), ash (4.11% and 3.72%), crude fiber (6.95 and 4.68%), moisture (1.03% and 1.38%), carbohydrate (75.86% and 74.78%) respectively. This shows that the leaves are a good source of energy to both humans and animals. Also, both vegetables revealed good percentages of proteins which can be used to compliment other sources of protein.

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Studies of Essential and Trace Elements in Some Fruits and Vegetables of Southwestern Bangladesh by PIXE Technique

Cited by 8 publications

References 9 publications

Phytochemical analysis, proximate composition and antinutritional factors of <i>Corchorus oliterius</i> plant

Phytochemical analysis, proximate composition and antinutritional factors of <i>Corchorus oliterius</i> plant

Elemental Analysis of Some Selected Fruits and Vegetables Samples in Bangladesh

Evaluation and Comparison of the Antioxidant Activities and Nutritional Composition of Cucurbita maxima and Vigna unguiculata Leaf Extracts

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