Biotechnological purification of a β-fructofuranosidase (β-FFase) from Aspergillus tamarii kita: Aqueous two-phase system (PEG/Citrate) and biochemical characterization was written by Matias da Silva Batista, Juanize;Pedrosa Brandao-Costa, Romero Marcos;Barbosa Cardoso, Kethylen Barbara;Nascimento, Thiago Pajeu;Albuquerque, Wendell W. C.;Carneiro da Cunha, Marcia Nieves;Porto, Camila Souza;Bezerra, Raquel Pedrosa;Figueiredo Porto, Ana Lucia. And the article was included in Biocatalysis and Agricultural Biotechnology in 2021.SDS of cas: 470-69-9 This article mentions the following:
β-Fructofuranosidases (EC3.2.1.26) are members of the GH32 family of glycoside hydrolases, which include more than 390 enzymes of vegetable and microbial origins, used in several biotechnol. applications. Thus, this research aimed to produce a β-fructofuranosidase obtained by Aspergillus tamarii through solid state fermentation, and to purify by Aqueous Two-Phase System (ATPS). Summary results presented the optimal parameters to produce the β-fructofuranosidase used wheat bran as a substrate at 30°C for 48 h, and purification process using ATPS with polyethylene glycol and sodium citrate (PEG/sodium citrate), where the β-fructofuranosidase preferably partitioned to the salt-rich phase, the best run (24% of PEG 400, 20% sodium citrate, pH 8) which presented a higher purification factor 6.42 with 12.39 U/mL activity and 352% yield. Optimum parameter was pH 5.15 and temperature of 55°C, resp. The purified enzyme showed excellent thermal stability and exhibited a half-life of 60 min at 65°C. Kinetics results for enzyme showed for Sucrose substrate the enzyme showed Km of 42.9 ± 2.21 mM and Vmax of 180.2 ± 2.8μM min-1 mg-1 of protein. Although Vmax was the highest for 1-Kestose (219.4 ± 2.7μM min-1 mg-1 of protein) the preferred substrate of Aspergillus tamariiβ-fructofuranosidase (b-FFase) was Nystose (Km of 3.8 ± 0.15 mM). SDS-PAGE revealed a single band of protein at ∼66 kDa. Finally, this study demonstrated the potential of ATPS to purify a β-fructofuranosidase with application in biotechnol. field aiming to functional foods. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5S,6R)-2-(((2S,3S,4S,5R)-2-((((2R,3S,4S,5R)-3,4-Dihydroxy-2,5-bis(hydroxymethyl)tetrahydrofuran-2-yl)oxy)methyl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 470-69-9SDS of cas: 470-69-9).
(2R,3R,4S,5S,6R)-2-(((2S,3S,4S,5R)-2-((((2R,3S,4S,5R)-3,4-Dihydroxy-2,5-bis(hydroxymethyl)tetrahydrofuran-2-yl)oxy)methyl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 470-69-9) belongs to tetrahydrofuran derivatives. THF (Tetrahydrofuran) is a stable compound with relatively low boiling point and excellent solvency. THF (Tetrahydrofuran) is also used as a starting material for the synthesis of poly(tetramethylene ether) glycol (PTMG), etc.SDS of cas: 470-69-9
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem