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Removal of Manganese and Copper from Aqueous Solution by Yeast Papiliotrema huenov

Mycobiology 2021년 49권 5호 p.507 ~ 520
Van Phu Nguyen, Truong Hai Thi Hong, Pham Tuan Anh, Cong Tuan Le, Le Tien, Nguyen Kim Cuc Thi,
소속 상세정보
 ( Van Phu Nguyen ) - Hue University Institute of Biotechnology
 ( Truong Hai Thi Hong ) - Hue University Institute of Biotechnology
 ( Pham Tuan Anh ) - Vietnam National University of Agriculture Department of Agronomy
 ( Cong Tuan Le ) - Hue University University of Sciences Department of Environmental Science
 ( Le Tien ) - Charles University Faculty of Science Department of Parasitology
 ( Nguyen Kim Cuc Thi ) - Hue University Institute of Biotechnology

Abstract


Papiliotrema huenov was previously reported to be highly tolerant of a range of extremely toxic heavy metals. This study aimed to identify the potential of P. huenov to remove manganese and copper from aqueous solution. Physical conditions which affect removal of Mn(II) and Cu(II) were determined. Optimal temperature for adsorption of both metal ions was 30?°C, and optimal pH for maximum uptake of Mn(II) and Cu(II) were 5 and 6, respectively. Under these conditions, living cells of P. huenov accumulated up to 75.58%?of 110?mg/L Mn(II) and 70.5% of 128?mg/L Cu(II) over 120?h, whereas, the removal efficiency of metal ions by dead cells over 1?h was 60.3% and 56.5%, respectively. These results indicate that living cells are more effective than dead biomass for bioremediation, but that greater time is required. The experimental data extends the potential use of P. huenov in biosorption and bioaccumulation of toxic heavy metals to copper and manganese, two of the most common industrial contaminants.

키워드

Papiliotrema huenov; bioaccumulation; biosorption; manganese; copper

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