Biosorption of pharmaceutical products by mushroom stem waste

Author(s)

Menk, Josilene de Jesus ^[1] ; Soares do Nascimento, Ashiley Ingrid ^[1] ; Leite, Fernanda Gomes ^[1] ; de Oliveira, Renan Angrizani ^[1] ; Jozala, Angela Faustino ^{[2, 1]} ; de Oliveira Junior, Jose Martins ^[3] ; Chaud, Marco Vinicius ^[4] ; Grotto, Denise ^[1]

Affiliation

^[1] Univ Sorocaba, LAPETOX Lab Toxicol Res, Sorocaba, SP - Brazil

^[2] Univ Sorocaba, LaMInFE Lab Ind Microbiol & Fermentat Proc, Sorocaba, SP - Brazil

^[3] Univ Sorocaba, LAFINAU Lab Nucl Phys, Sorocaba, SP - Brazil

^[4] LaBNUS Lab Biomat & Nanotechnol, Sorocaba, SP - Brazil

• Document type: Journal article
• Source: Chemosphere; v. 237, DEC 2019.
• Web of Science Citations: 0

Abstract

Residues from pharmaceutical products are found in effluents and in other environmental matrices such as soil and surface waters. Chitin and chitosan are highly adsorptive substances present in mushrooms such as champignon (Agaricus bisporus) and shiitake (Lentinula edodes). This study evaluated the adsorption efficiency of shiitake and champignon stalks, and shiitake substrate in water contaminated with paracetamol and 17 alpha-ethynyl estradiol (EE2). Stalks and substrate were dried and ground. Particles were physically evaluated and chemically characterized. Adsorption kinetic and isotherms were carried out for EE2 and paracetamol. Shiitake and champignon stalks had high percentage of porosity, closed and open pores. All bioproducts from mushroom had chemical groups similar to chitosan standard. However, the degree of deacetylation of chitosan was higher in shiitake (28.3%). In EE2 adsorption kinetics, shiitake and champignon stalks showed 100% removal in 20 and 30 min, respectively. Shiitake substrate showed 80% removal. In paracetamol adsorption kinetics, all bioproducts presented more than 95% removal. In EE2 adsorption isotherm, the maximum adsorption capacities (q(max)) to shiitake and champignon stalks and shiitake substrate were 5.62, 18.95 and 0.31 mg(EE2)/g, respectively. For paracetamol adsorption isotherm, q(max) to shiitake and champignon stalks were 34.20 and 338.08 mg(paracetamol)/g, respectively. In conclusion, shiitake and champignon stalks (specially champignon) had the best results regarding the adsorption of EE2 and paracetamol. Reuse of discarded mushroom waste reduces the environmental impact and can add value to the product. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 16/22873-4 - Mushroom and biocompounds as ecofriendly biossorbents: a bioremedial action
• Grantee: Denise Grotto
• Support Opportunities: Regular Research Grants