Trace Metal Contents of Vegetables and Fruits of Hyderabad Retail Market

Ismail, Fadillah; Anjum, M. Reshma; Mamon, A.N.; Kazi, T.G.

doi:10.3923/pjn.2011.365.372

Cited by 90 publications

(71 citation statements)

References 11 publications

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“…The constantly lower content of iron, phosphorus and magnesium minerals at advanced stages of the fruit development was probably related to their lower rate of absorption from the soil. Mineral availability in plant is reported to be affected among other things, by plant genetic makeup and harvesting stages (Ismail et al, 2011). The observed increase in fruit fibre content along the fruit development stages was probably due to the increased biosynthesis and accumulation over time of fibre components like cellulose, hemicelluloses and pectin.…”

Section: Discussionmentioning

confidence: 98%

Effects of harvesting stages on yield and nutritional quality of African eggplant (<i>Solanum aethiopicum</i> L.) fruits

Msogoya¹,

Majubwa²,

Maerere³

2014

J. App. Bioscience.

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Msogoya et al. J. Appl. Biosci. 2014. Effect of harvesting stages on yield and nutritional quality of African eggplant (Solanum aethiopicum) fruits. ABSTRACT Objective: Farmers often harvest African eggplant (Solanum Aethiopicum L.) fruits at different stages of fruit maturity. The influence of these harvesting practices on fruit productivity and nutritional quality is not known. This study was conducted to determine the effect of harvesting stages on yield and nutritional quality of African eggplant varieties. Methodology and results:The experiment was laid out in a split plot arrangement in a complete randomized block design with three replications. Three African eggplant varieties (Tengeru white, AB2 and Manyire green) and three harvesting stages (1, 2 and 3) were used as main plot factor and sub plot factor, respectively. Harvesting stage 1 (immature fruits) was characterized by fruits with non-shiny peel, harvesting stage 2 (mature fruits) was characterized by fruits with shinny peel and harvesting stage 3 (overmature fruits) was characterized by fruits with yellow coloration at the bottom. Fruit yield was assessed based on number and weight of fruits per plant while fruit nutritional quality was assessed in the laboratory based on carbohydrate, fibres, calcium, potassium, magnesium, phosphorus, iron, β-carotene and ascorbic acid contents. The collected data were subjected to analysis of variance using MSTATC statistical software. Treatments mean separation was conducted based on Student-Newman Keuls at P < 5 %. Results showed that yield in number of fruits per hectare decreased while yield in metric tons per hectare increased with fruit development stages. Varieties Tengeru white and AB2 had the highest yields based on metric tons at harvesting stage 2 while Manyire green had the highest yield at harvesting stage 3. Carbohydrate and fibre contents increased while ascorbic acid, β-carotene and most minerals decreased with fruit development stages. Conclusion and application of results:This study recommends harvesting immature fruits for high vitamin and mineral contents and delayed harvesting for the highest yield. As yield and nutritional quality trends vary with varieties, further studies are required to determine the effect of harvesting stages on yield and nutritional quality of different varieties of African eggplant.

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Section: Discussionmentioning

confidence: 98%

Effects of harvesting stages on yield and nutritional quality of African eggplant (<i>Solanum aethiopicum</i> L.) fruits

Msogoya¹,

Majubwa²,

Maerere³

2014

J. App. Bioscience.

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“…Metals like cadmium (Cd), mercury (Hg), cobalt (Co), lead (Pb), copper (Cu), nickel (Ni), chromium (Cr), and zinc (Zn) are recognized as metals of immediate concern (WHO, 2010). Estimates reveal that heavy metal pollution has produced adverse impacts on soil, fruits and vegetable quality and requires utmost attention (Abii and Okorie, 2011;Sobukola et al, 2010;Sharma et al, 2007;Ismail et al, 2011;Khan et al, 2008; *Corresponding author e-mail: almas209@yahoo.com Heavy metals in soil and vegetables grown with municipal wastewater in Lahore A. Hamid Jimoh et al, 2012;Nazemi, 2012;Perveen et al, 2012;Tasrina et al, 2015;Delbari and Kulkarni, 2013;Najam et al, 2015). Vegetables are an important constituent of diet.…”

Section: Introductionmentioning

confidence: 99%

Heavy metals in soil and vegetables grown with municipal wastewater in Lahore

Hamid

Mushtaq

Nazir

et al. 2017

Bangladesh J. Sci. Ind. Res.

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Heavy metals contamination of fruits and vegetables as a consequence of wastewater irrigation is most important concern today. Present study measures heavy metals concentration (Cr, Cu and Pb) in soil and vegetable samples collected from agriculture area around four major drains of Lahore (Hudiara drain, BabuSabu drain, Chota Ravi drain and Kharak drain). Results show that concentration of Cu, Cr and Pb in soil samples were in compliance with WHO and EU standards, with an average of 2.221 + 1.184, 5.314 + 1.0511 and 3.864 + 1.6095 mg/kg respectively. Cu contentin vegetablesranged from 0.4-18.9 mg/Kg (average of 4.11 + 6.639 mg/kg), was within limits while Cr in Lady Finger, from Chota Ravi drain area, was 13.2 mg/Kg which is higher than permissible limit (2.4 mg/Kg). While Pb concentration in vegetables samples varied between 0.7 -8.1 mg/Kg (Mean 2.329 + 2.592 mg/kg), which was also higher than the standard (0.3 mg/Kg).Keywords: Heavy metals; Drains; Contamination; Soil; Vegetables Available online at www.banglajol.info Bangladesh J. Sci. Ind. Res. 52(4), 331-336, 2017331-336, Jimoh et al., 2012Nazemi, 2012;Perveen et al., 2012;Tasrina et al., 2015; Delbari and Kulkarni, 2013;Najam et al., 2015). Vegetables are an important constituent of diet. Comparison of vegetables, fruits and other grain crops shows that heavy metals are largely accumulated in the edible parts of vegetables (Mapanda et al., 2005). Vegetables absorb and store high quantity of these harmful metals and become source of health problems when ingested by humans and animals (Alam et al., 2003;Sobukola et al., 2010). Elevated concentrations of Cd, Cu, Co and Pb in food stuff are basis of diseases such as bone cancer, high prevalence of upper intestinal cancer, reproductive effects, hypertension and renal failure (Turkdogan et al., 2003). Long term exposure with these toxic elements, even at insignificant levels, causes noxious effects for humans and other living beings. Being nonbiodegradable in nature, persistent in environment and potential bioaccumulation, these metals lead to severe hazards once these enter the bodies of living organisms (Shahid et al., 2015a). Many reports suggest that the continued ingestion of food contaminated with heavy metals can damage liver, nervous, cardiovascular, kidney and/or causing cancers (Jarup, 2003). Extensive evidence of health hazards due to intake of vegetables grown in sewage irrigated water has been reported (Avci, 2012;Ghosh et al., 2012;Wang et al., 2012;Weldegebriel et al., 2012;Xue et al., 2012). Iqbal et al. (2016) carried out a study in Pakistan to assess the concentrations of heavy metals in irrigation water, soil and vegetables, their transfer factors and human health risk. Similar study was conducted by Khan et al. (2013) to evaluate heavy metals in and around Lahore district and analysis revealed that metal concentration were higher when compared with WHO applicable limits. Similarly, Hamid et al. (2016) studied heavy metal contamination of vegetables and soil of Ruhidrain area and t...

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“…These elements play an important role in the metabolic regulations of the human body. Increased consumption of fruit can improve the mineral regulation and reduce cardiovascular diseases and certain cancer risks [12]. Copper (Cu) is an essential trace element required as cofactor in the antioxidant enzymes.…”

Section: Introductionmentioning

confidence: 99%

“…Fe is an essential element and is a core component of the red blood cells. The daily intake limits is 8-11 mg [12,14]. Ca is known as nutrition for human and is necessary for the development and growth of skeletal [12].…”

Section: Introductionmentioning

confidence: 99%

Antioxidant Capacity and Metal Content of Physalis peruviana L. Fruit Sold in Markets

Eken¹,

Ünlü-Endirlik²,

Baldemir³

et al. 2016

Ann Clin Anal Med

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ÖzetAmaç: Antioksidan aktivite gösteren ve eser elementlerin gerekli miktarları-nı içeren tıbbi gıdaların diyetle alınması, iyi bir sağlıklı yaşam sürdürmek için önemlidir. Çalışmamızda, Kayseri'de marketlerde satılan Altınçilek (Physalis peruviana L.) meyvesinin antioksidan kapasitesinin ve metal içeriğinin belirlenmesi amaçlanmıştır. Gereç ve Yöntem: P. peruviana meyvesinin antioksidan kapasitesi, 2,2-difenil-1-pikrilhidrazil (DPPH) serbest radikal süpürme testi ile belirlenmiştir. Meyvenin metanol (MeOH) ekstresinin DPPH serbest radikalini temizleme kapasitesi, referans olarak askorbik asit, gallik asit ve bütillen-dirilmiş hidroksitoluen (BHT) gibi bilinen antioksidanlarla karşılaştırılmıştır. P. peruviana meyvesinin metal içeriği atomik absorpsiyon spektrometresi (AAS) kullanılarak ölçülmüştür. Bulgular: P. peruviana meyve ekstresinin DPPH serbest radikal temizleme aktivitesinin olduğu, fakat antioksidan kapasitesinin standart maddelerden daha düşük olduğu tespit edilmiştir. P. peruviana, askorbik asit, gallik asit ve BHT'nin % 50 inhibitör konsantrasyon (IC 50 ) değer-leri sırası ile 32 mg/ml, 3.8 mg/ml, 3.51 mg/ml ve 1.21 mg/ml olarak belirlenmiştir. AAS ile yapılan analizler sonucu, meyvenin eser element yönünden zengin içeriğe sahip iken ağır metal içeriğinin az miktarda veya hiç olmadı-ğı gözlenmiştir. Tartışma: Bu sonuçlar, P. peruviana meyvesinin doğal kaynaklı potansiyel bir antioksidan ve eser element kaynağı olduğunu göstermektedir. Anahtar Kelimeler Eser Elementler; Physalis; Antioksidan EtkiAbstract Aim: The dietary intake of medicinal food with antioxidant activity and required amounts of trace elements is important to pursue good healthy life. In our study, we aimed to determine the antioxidant capacity and metal content of goldenberry (Physalis peruviana L.) fruit sold in markets in Kayseri. Material and Method: The antioxidant capacity of P. peruviana fruit was determined by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay. The DPPH radical scavenger capacity of the methanol extract of fruit was compared with known antioxidants such as ascorbic acid, gallic acid, and butylated hydroxytoluene (BHT) as references. The metal content of P. peruviana fruit was measured by using atomic absorption spectrometer (AAS). Results: The fruit of P. peruviana was found to possess DPPH free radical scavenging activity but the antioxidant capacity was lower than the standard substances. Inhibitory concentration 50% (IC 50 ) values of P. peruviana, ascorbic acid, gallic acid, and BHT were determined as 32 mg/ml, 3.8 mg/ml, 3.51 mg/ ml, and 1.21 mg/ml, respectively. As a result of the analysis by AAS, it was observed that P. peruviana fruit contented plentiful trace elements and the content of heavy metal was small amount or not detected. Discussion: These observations suggest that the fruit of P. peruviana has a potential source of antioxidant and trace elements of natural origin.

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Trace Metal Contents of Vegetables and Fruits of Hyderabad Retail Market

Cited by 90 publications

References 11 publications

Effects of harvesting stages on yield and nutritional quality of African eggplant (<i>Solanum aethiopicum</i> L.) fruits

Effects of harvesting stages on yield and nutritional quality of African eggplant (<i>Solanum aethiopicum</i> L.) fruits

Heavy metals in soil and vegetables grown with municipal wastewater in Lahore

Antioxidant Capacity and Metal Content of Physalis peruviana L. Fruit Sold in Markets

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