Heavy metal in edible mushrooms (P. sajor-caju) and its potential health risk / Siti Hani Fareza Ismail

Ismail, Siti Hani Fareza (2018) Heavy metal in edible mushrooms (P. sajor-caju) and its potential health risk / Siti Hani Fareza Ismail. Degree thesis, Universiti Teknologi MARA ( Kampus Puncak Alam ).

Abstract

Introduction: Mushroom able to take up pollutants in their fruiting bodies during growth stage and this include the accumulation of heavy metals in mushroom tissue
which unevenly distributed between head and stipe parts. Objective: Three metal elements (Cadmium, Lead and Copper) were studied to evaluate the contamination
of heavy metals in grey oyster (Pleurotus sajor-caju) mushroom and to assess the potential health risk towards consumer. Methodology: Twenty mushroom samples
including head and stipe and twenty substrate samples were collected from farms in Selangor. The concentration of Cd, Pb and Cu in samples was determined by using
Atomic Absorption Spectrometer (AAS) after acid digestion process. Finding: Cu had the highest accumulation in head and stipe of the mushroom at 13.18 mg/kg and
10.52 mg/kg, respectively while the lowest reading for both parts was Cd with 1.08 mg/kg and 0.59 mg/kg. There was significant difference between concentration of Cd, Pb and Cu in head and stipe of the mushroom. Concentrations of the three metals in substrate were statistically correlated with concentration in head and stipe. Bioconcentration factor (BCF) was calculated and most of head and stipe were bioexclusors to Cd, Pb and Cu. Target Hazard Quotient (THQ) of Cd, Pb and Cu was less than one but hazard index (HI) showed that both head and stipe were above one and indicated that consumption of P. sajor-caju mushroom may cause adverse health effect. Conclusion: Substrate composition played a role in the bioaccumulation in P. sajor-caju as increasing of heavy metals concentration in substrate bring significant
impact on the concentration in mushroom. Proper cooking and processing mushroom to leach out heavy metals were recommended in ensuring quality of food and lowering the health risk

Metadata

Item Type: Thesis (Degree)
Creators:
Creators
Email / ID Num.
Ismail, Siti Hani Fareza
2014850268
Contributors:
Contribution
Name
Email / ID Num.
Thesis advisor
Mohd Shahid, Nadiatul Syima
UNSPECIFIED
Subjects: R Medicine > RA Public aspects of medicine > Public health. Hygiene. Preventive Medicine
R Medicine > RA Public aspects of medicine > Public health. Hygiene. Preventive Medicine > Food and food supply in relation to public health
S Agriculture > SB Plant culture > Vegetables > Vegetable culture under glass, etc. > Mushrooms
Divisions: Universiti Teknologi MARA, Selangor > Puncak Alam Campus > Faculty of Health Sciences
Programme: Bachelor in Environmental Health and Safety
Keywords: Heavy metals, Pleurotus sajor-caju, Atomic Absorption Spectrometer (AAS), BCF
Date: 2018
URI: https://ir.uitm.edu.my/id/eprint/42213
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