LAPSE:2021.0544
Published Article
LAPSE:2021.0544
Synthesis of Dietetic Structured Lipids from Spent Coffee Grounds Crude Oil Catalyzed by Commercial Immobilized Lipases and Immobilized Rhizopus oryzae Lipase on Biochar and Hybrid Support
Danyelle A. Mota, Jefferson C. B. Santos, Diana Faria, Álvaro S. Lima, Laiza C. Krause, Cleide M. F. Soares, Suzana Ferreira-Dias
June 21, 2021
The aim of this study was the valorization of coffee industry residues, namely spent coffee grounds (SCG) as a source of oil, and silverskin (CS) as a source of both oil and biomass, under the concept of the circular economy. Therefore, crude oil from SCG was used to produce low-calorie structured lipids (SL) for food and pharmaceutical industries, and CS to produce biochar by pyrolysis for biotechnological uses. SL were obtained by acidolysis with caprylic or capric acid, or interesterification with ethyl caprylate or ethyl caprate, in solvent-free media, catalyzed by immobilized sn-1,3 regioselective lipases. Silverskin biochar (BIO) was directly used as enzyme carrier or to produce hybrid organic-silica (HB) supports for enzyme immobilization. Rhizopus oryzae lipase (ROL) immobilized on Amberlite (AMB), silica (SIL), BIO or HB, and the commercial immobilized Thermomyces lanuginosus (Lipozyme TL IM) and Rhizomucor miehei (Lipozyme RM IM) lipases were tested. Lipozyme RM IM showed better results in SL production than Lipozyme TLIM or ROL on BIO, SIL or HB. About 90% triacylglycerol conversion was attained after 7 h acidolysis or interesterification. Lipozyme RM IM was more stable in interesterification (80% and 65% activity with ethyl caprylate or ethyl caprate) than in acidolysis (first-order decay) after 10 reuses.
Keywords
coffee silverskin, immobilization, lipase, spent coffee grounds oil, structured lipids
Suggested Citation
Mota DA, Santos JCB, Faria D, Lima ?S, Krause LC, Soares CMF, Ferreira-Dias S. Synthesis of Dietetic Structured Lipids from Spent Coffee Grounds Crude Oil Catalyzed by Commercial Immobilized Lipases and Immobilized Rhizopus oryzae Lipase on Biochar and Hybrid Support. (2021). LAPSE:2021.0544
Author Affiliations
Mota DA: Instituto Superior de Agronomia, Universidade de Lisboa, LEAF, Linking Landscape, Environment, Agriculture and Food, 1349-017 Lisbon, Portugal; Institute of Technology and Research (ITP), Avenida Murilo Dantas 300, Aracaju 49032-490, Brazil; Food Research [ORCID]
Santos JCB: Institute of Technology and Research (ITP), Avenida Murilo Dantas 300, Aracaju 49032-490, Brazil; Food Research Laboratory, Tiradentes University (UNIT), Avenida Murilo Dantas 300, Aracaju 49032-490, Brazil [ORCID]
Faria D: Instituto Superior de Agronomia, Universidade de Lisboa, LEAF, Linking Landscape, Environment, Agriculture and Food, 1349-017 Lisbon, Portugal
Lima ?S: Institute of Technology and Research (ITP), Avenida Murilo Dantas 300, Aracaju 49032-490, Brazil; Food Research Laboratory, Tiradentes University (UNIT), Avenida Murilo Dantas 300, Aracaju 49032-490, Brazil [ORCID]
Krause LC: Institute of Technology and Research (ITP), Avenida Murilo Dantas 300, Aracaju 49032-490, Brazil; Food Research Laboratory, Tiradentes University (UNIT), Avenida Murilo Dantas 300, Aracaju 49032-490, Brazil
Soares CMF: Institute of Technology and Research (ITP), Avenida Murilo Dantas 300, Aracaju 49032-490, Brazil; Food Research Laboratory, Tiradentes University (UNIT), Avenida Murilo Dantas 300, Aracaju 49032-490, Brazil
Ferreira-Dias S: Instituto Superior de Agronomia, Universidade de Lisboa, LEAF, Linking Landscape, Environment, Agriculture and Food, 1349-017 Lisbon, Portugal [ORCID]
Journal Name
Processes
Volume
8
Issue
12
Article Number
E1542
Year
2020
Publication Date
2020-11-26
Published Version
ISSN
2227-9717
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PII: pr8121542, Publication Type: Journal Article
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LAPSE:2021.0544
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doi:10.3390/pr8121542
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Jun 21, 2021
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Calvin Tsay
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