PMID- 34445200 OWN - NLM STAT- MEDLINE DCOM- 20210924 LR - 20210924 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 22 IP - 16 DP - 2021 Aug 6 TI - Biocatalyzed Synthesis of Flavor Esters and Polyesters: A Design of Experiments (DoE) Approach. LID - 10.3390/ijms22168493 [doi] LID - 8493 AB - In the present work, different hydrolases were adsorbed onto polypropylene beads to investigate their activity both in short-esters and polyesters synthesis. The software MODDE((R)) Pro 13 (Sartorius) was used to develop a full-factorial design of experiments (DoE) to analyse the thermostability and selectivity of the immobilized enzyme towards alcohols and acids with different chain lengths in short-esters synthesis reactions. The temperature optima of Candida antarctica lipase B (CaLB), Humicola insolens cutinase (HiC), and Thermobifida cellulosilytica cutinase 1 (Thc_Cut1) were 85 degrees C, 70 degrees C, and 50 degrees C. CaLB and HiC preferred long-chain alcohols and acids as substrate in contrast to Thc_Cut1, which was more active on short-chain monomers. Polymerization of different esters as building blocks was carried out to confirm the applicability of the obtained model on larger macromolecules. The selectivity of both CaLB and HiC was investigated and best results were obtained for dimethyl sebacate (DMSe), leading to polyesters with a M(w) of 18 kDa and 6 kDa. For the polymerization of dimethyl adipate (DMA) with BDO and ODO, higher molecular masses were obtained when using CaLB onto polypropylene beads (CaLB_PP) as compared with CaLB immobilized on macroporous acrylic resin beads (i.e., Novozym 435). Namely, for BDO the M(n) were 7500 and 4300 Da and for ODO 8100 and 5000 Da for CaLB_PP and for the commercial enzymes, respectively. Thc_Cut1 led to polymers with lower molecular masses, with M(n) < 1 kDa. This enzyme showed a temperature optimum of 50 degrees C with 63% of DMA and BDO when compared to 54% and 27%, at 70 degrees C and at 85 degrees C, respectively. FAU - Fabbri, Filippo AU - Fabbri F AUID- ORCID: 0000-0002-8618-6680 AD - Department of Agrobiotechnology, Institute of Environmental Biotechnology, University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Strasse 20, 3430 Tulln an der Donau, Austria. FAU - Bertolini, Federico A AU - Bertolini FA AD - Department of Agrobiotechnology, Institute of Environmental Biotechnology, University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Strasse 20, 3430 Tulln an der Donau, Austria. FAU - Guebitz, Georg M AU - Guebitz GM AUID- ORCID: 0000-0003-2262-487X AD - Department of Agrobiotechnology, Institute of Environmental Biotechnology, University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Strasse 20, 3430 Tulln an der Donau, Austria. AD - Austrian Centre of Industrial Biotechnology, Konrad Lorenz Strasse 20, 3430 Tulln an der Donau, Austria. FAU - Pellis, Alessandro AU - Pellis A AUID- ORCID: 0000-0003-3711-3087 AD - Department of Agrobiotechnology, Institute of Environmental Biotechnology, University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Strasse 20, 3430 Tulln an der Donau, Austria. LA - eng GR - n.a./Erasmus+ Traineeship/ PT - Journal Article DEP - 20210806 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Enzymes, Immobilized) RN - 0 (Esters) RN - 0 (Flavoring Agents) RN - 0 (Fungal Proteins) RN - 0 (Polyesters) RN - EC 3.1.1.- (Carboxylic Ester Hydrolases) RN - EC 3.1.1.- (cutinase) RN - EC 3.1.1.3 (Lipase) RN - EC 3.1.1.3 (lipase B, Candida antarctica) RN - Thermobifida cellulosilytica SB - IM MH - Biocatalysis MH - Candida/enzymology MH - Carboxylic Ester Hydrolases/chemistry MH - Enzymes, Immobilized/chemistry MH - Esters/*chemical synthesis MH - Flavoring Agents/*chemical synthesis MH - Fungal Genus Humicola/enzymology MH - Fungal Proteins/chemistry MH - Lipase/chemistry MH - Polyesters/*chemical synthesis MH - Polymerization MH - Thermobifida/enzymology PMC - PMC8395215 OTO - NOTNLM OT - bioplastics OT - closure of the carbon cycle OT - design of experiments OT - flavor esters synthesis OT - hydrolytic enzymes OT - polyesters synthesis COIS- The authors declare no conflict of interest. EDAT- 2021/08/28 06:00 MHDA- 2021/09/25 06:00 PMCR- 2021/08/06 CRDT- 2021/08/27 01:23 PHST- 2021/07/05 00:00 [received] PHST- 2021/08/04 00:00 [revised] PHST- 2021/08/04 00:00 [accepted] PHST- 2021/08/27 01:23 [entrez] PHST- 2021/08/28 06:00 [pubmed] PHST- 2021/09/25 06:00 [medline] PHST- 2021/08/06 00:00 [pmc-release] AID - ijms22168493 [pii] AID - ijms-22-08493 [pii] AID - 10.3390/ijms22168493 [doi] PST - epublish SO - Int J Mol Sci. 2021 Aug 6;22(16):8493. doi: 10.3390/ijms22168493.