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Galinytė D, Balčiūnaitė-Murzienė G, Karosienė J, Morudov D, Naginienė R, Baranauskienė D, Šulinskienė J, Kudlinskienė I, Savickas A, Savickienė N. Determination of Heavy Metal Content: Arsenic, Cadmium, Mercury, and Lead in Cyano-Phycocyanin Isolated from the Cyanobacterial Biomass. PLANTS (BASEL, SWITZERLAND) 2023; 12:3150. [PMID: 37687396 PMCID: PMC10490492 DOI: 10.3390/plants12173150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023]
Abstract
Cyano-phycocyanin (C-PC) is a light-absorbing biliprotein found in cyanobacteria, commonly known as blue-green algae. Due to its antioxidative, anti-inflammatory, and anticancer properties, this protein is a promising substance in medicine and pharmaceuticals. However, cyanobacteria tend to bind heavy metals from the environment, making it necessary to ensure the safety of C-PC for the development of pharmaceutical products, with C-PC isolated from naturally collected cyanobacterial biomass. This study aimed to determine the content of the most toxic heavy metals, arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb) in C-PC isolated from different cyanobacterial biomasses collected in the Kaunas Lagoon during 2019-2022, and compare them with the content of heavy metals in C-PC isolated from cultivated Spirulina platensis (S. platensis). Cyanobacteria of Aphanizomenon flos-aquae (A. flos-aquae) dominated the biomass collected in 2019, while the genus Microcystis dominated the biomasses collected in the years 2020 and 2022. Heavy metals were determined using inductively coupled plasma mass spectrometry (ICP-MS). ICP-MS analysis revealed higher levels of the most investigated heavy metals (Pb, Cd, and As) in C-PC isolated from the biomass with the dominant Microcystis spp. compared to C-PC isolated from the biomass with the predominant A. flos-aquae. Meanwhile, C-PC isolated from cultivated S. platensis exhibited lower concentrations of As and Pb than C-PC isolated from naturally collected cyanobacterial biomass.
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Affiliation(s)
- Daiva Galinytė
- Department of Pharmacology, Faculty of Pharmacy, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
| | - Gabrielė Balčiūnaitė-Murzienė
- Faculty of Pharmacy, Institute of Pharmaceutical Technologies, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
| | - Jūratė Karosienė
- Laboratory of Algology and Microbial Ecology, Nature Research Centre, Akademijos St. 2, 08412 Vilnius, Lithuania; (J.K.); (D.M.)
| | - Dmitrij Morudov
- Laboratory of Algology and Microbial Ecology, Nature Research Centre, Akademijos St. 2, 08412 Vilnius, Lithuania; (J.K.); (D.M.)
| | - Rima Naginienė
- Laboratory of Toxicology, Neurosciences Institute, Academy of Medicine, Lithuanian University of Health Sciences, Eivenių Str. 4, 50161 Kaunas, Lithuania; (R.N.); (D.B.); (J.Š.)
| | - Dalė Baranauskienė
- Laboratory of Toxicology, Neurosciences Institute, Academy of Medicine, Lithuanian University of Health Sciences, Eivenių Str. 4, 50161 Kaunas, Lithuania; (R.N.); (D.B.); (J.Š.)
| | - Jurgita Šulinskienė
- Laboratory of Toxicology, Neurosciences Institute, Academy of Medicine, Lithuanian University of Health Sciences, Eivenių Str. 4, 50161 Kaunas, Lithuania; (R.N.); (D.B.); (J.Š.)
| | | | - Arūnas Savickas
- Department of Drug Technology and Social Pharmacy, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
| | - Nijolė Savickienė
- Department of Pharmacology, Faculty of Pharmacy, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
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