Use of activated carbon obtained from sugarcane straw for PAH adsorption - a comparative study with commercial materials

Alves, Lais de Souza; Neto, Virgílio José Martins Ferreira; Costa, Thiago S. B.; Gaspar, Alexandre B.; Mendes, Fernanda de Souza Nogueira Sardinha; Luna, Aderval S.; Henriques, Cristiane A.

doi:10.1080/09593330.2020.1807611

Cited by 6 publications

(2 citation statements)

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“…Activated carbon (AC) is a porous carbonaceous material with a high surface area and thermal, chemical, and mechanical resistance (Ferreira Gonçalves et al, 2021). The activated carbon has an adsorption capacity influenced by the textural properties (surface area and pore size distribution) and the nature of its surface chemistry (Alves et al, 2020;Ferreira Gonçalves et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…The main production of this alcohol in the country comes from sugarcane (Silveira et al, 2020). The generation of sugarcane straw has grown due to the replacement of manual by mechanized harvest, which increases the amount of this waste (Alves et al, 2020). Also, traditionally, sugarcane is pre-burned to remove the straw and facilitate harvesting.…”

Section: Introductionmentioning

confidence: 99%

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Activated carbon from sugarcane bagasse as support for lipase immobilization by physical adsorption technique

Veloso,

Da Silva,

Menezes

et al. 2024

Cuad. Ed. Desar.

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Lipases are recognized as the most important group of catalysts in biotechnology. However, utilization of free enzymes is often hampered by the need for more operational stability, high cost, and non-reusability. Most of these obstacles can be solved by lipase immobilization. This work's objective was to evaluate the performance of the activated carbon obtained from sugarcane straw (SAC) as a support for lipase immobilization. Two lipases were immobilized by physical adsorption on SAC: Aspergillus niger 11T53A14 lipase and CalB (lipase B from Candida antarctica, Novozymes). Results revealed that the lipase had been anchored on the activated carbon with the lipase binding efficiency of 89 % (A. niger lipase) and 100 % (CalB) at the optimum experimental conditions (initial protein concentration 0.1 mg mL-1, 0.15 g of SAC, 25 °C, and 120 min). Langmuir isotherm fitted the adsorption equilibrium data of the lipases on SAC. SAC presents a high surface area and protein adsorption capacity. These results show that activated carbon synthesized from the sugarcane straw is a promising support for enzyme immobilization.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%