Synthesis of a green polyurethane foam from a biopolyol obtained by enzymatic glycerolysis and its use for immobilization of lipase NS-40116

Bresolin, Daniela; Estrella, Arthur S.; Silva, Jacqueline R. P. da; Valério, Alexsandra; Sayer, Cláudia; Araújo, Pedro Henrique Hermes de; Oliveira, Débora de

doi:10.1007/s00449-018-2026-9

Cited by 23 publications

(9 citation statements)

References 45 publications

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“…373 Later, a polyurethane foam was produced by this research group using mono-and diacylglycerols obtained by the glycerolysis of castor oil (64% yield). 374 A polymer was prepared from glycerol and oleic di-acid using N435 or classical thermochemical methods. 375 The enzyme polymerized product was found to be more biodegradable than the chemical one.…”

Section: Lewatit Vp Oc 1600mentioning

confidence: 99%

Novozym 435: the “perfect” lipase immobilized biocatalyst?

Ortíz

Ferreira

Barbosa

et al. 2019

Catal. Sci. Technol.

427

360

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Section: Lewatit Vp Oc 1600mentioning

confidence: 99%

Novozym 435: the “perfect” lipase immobilized biocatalyst?

Ortíz

Ferreira

Barbosa

et al. 2019

Catal. Sci. Technol.

427

360

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“…ET2 became commercially available only in 2016 and, so far, almost all the works found in the literature involve its use for biodiesel production, as recently discussed in an excellent review [7]. As ET2 is an enzyme genetically modified for this purpose; its resistance and stability are far above the average in terms of temperature, solvent, and pH [24]. Thus, this biocatalyst may present interesting performance in other systems, since it is adapted for such purpose.…”

Section: Immobilization Of Et2 Lipasementioning

confidence: 99%

“…Indeed, it is known that organic solvents can inactivate lipases through several mechanisms [33,34]. Thus, some deviations in the enzymatic activity were already expected, although the enzyme immobilization process may offer some advantages [22,24].…”

Section: Stability Study In Gpc Esterificationmentioning

confidence: 99%

Strategies for the Immobilization of Eversa® Transform 2.0 Lipase and Application for Phospholipid Synthesis

et al. 2021

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Eversa® Transform 2.0 lipase (ET2) is a recent lipase formulation derived from the Thermomyces lanuginosus lipase cultivated on Aspergillus oryzae and specially designed for biodiesel production. Since it has not been available for a long time, research on the efficiency of this enzyme in other applications remains unexplored. Moreover, even though it has been launched as a free enzyme, its immobilization may extend the scope of ET2 applications. This work explored ET2 immobilization on octadecyl methacrylate beads (IB-ADS-3) and proved the efficiency of the derivatives for esterification of glycerophosphocholine (GPC) with oleic acid in anhydrous systems. ET2 immobilized via interfacial activation on commercial hydrophobic support Immobead IB-ADS-3 showed maximum enzyme loading of 160 mg/g (enzyme/support) and great stability for GPC esterification under 30% butanone and solvent-free systems. For reusability, yields above 63% were achieved after six reaction cycles for GPC esterification. Considering the very high enzyme loading and the number of reuses achieved, these results suggest a potential application of this immobilized biocatalyst for esterification reactions in anhydrous media. This study is expected to encourage the exploration of other approaches for this enzyme, thereby opening up several new possibilities.

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“…Krena kereaktifanya yang sangat tinggi, halogen ditemukan dialam hanya dalam betuk senyawa. Konfugurasi elektron halogen adalah ns 2 np 5 , dan halogen kekurangan satu elektron untuk membnetuk gas mulia yang merupakan kulit tertutup. Jad atom halogen mengeluarkan energi bila menangkap satu elektoron.…”

Section: Jari-jari Atomunclassified

Magnesium Klorida (MgCl2): Karakteristik dan Dinamika Molekuler Pada MgCl2

Wildayati¹,

Zainul²

2019

Preprint

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Magnesium klorida adalah salah satu senyawa kimia dengan rumus MgCl2 dan bentuk hidrat MgCl2.H2O. Magnesium klorida merupakan logam yang kuat, memiliki titik didih 714°C dan titik lebur 1412 °C mampu larut dalam air, serta memiliki sifat thermodinamika seperti∆Hf 298 sebesar-641,3kj/mol dan∆Gf 298 sebesar -591,8 kj/mol. Senyawa ini dapat diperoleh dengan proses kristalisasi dan elektrolisis atau dari reaksi Mg(OH)2 dengan HCl. Magnesium klorida merupakan salah satu garam yang memiliki peranan penting pada industri kimia dan banyak kegunaan dalam kehidupan sehari-hari seperti de-icer, liquid tirest ballast, foam pada instalasi kebakaran. Penelitian ini bertujuan untuk mengetahui karakteristik molekul, dan menganalisis dinamika molekuler serta transport ion pada MgCl2 . Metode yang digunakan adalah metode optimasi dilakukan dengan menggunakan aplikasi Chemoffice3D 15.0 dan ChemDraw Profesional 15.0. Dilihat dari penggambaran chemoffice 15.0 senyawa MgCl2 memiliki karakterisasi transfor ionik yang dapat diukur dari parameter mobilitas ion. Konduktivitas viskositas, dan gerakan hanyut.?Dari?parameter?yang diukur diperoleh?nilai perhitungan kecepatan hanyut Magnesium Klorida (MgCl2) dengan potensial 3,61 V dan jarak antara elektroda adalah 1,5 cm adalah 2, 407 V/ cm.

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Synthesis of a green polyurethane foam from a biopolyol obtained by enzymatic glycerolysis and its use for immobilization of lipase NS-40116

Cited by 23 publications

References 45 publications

Novozym 435: the “perfect” lipase immobilized biocatalyst?

Novozym 435: the “perfect” lipase immobilized biocatalyst?

Strategies for the Immobilization of Eversa® Transform 2.0 Lipase and Application for Phospholipid Synthesis

Magnesium Klorida (MgCl2): Karakteristik dan Dinamika Molekuler Pada MgCl2

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