biostudies-literatureUnknown58(5)Santi LConselho Nacional de Desenvolvimento Científico e TecnológicoPectinases and other carbohydrate-active enzymes are important for the food industry, mainly for juice processing. In addition, the use of peels to produce enzymes can aggregate value to these agro-industrial residues and at the end of the process enhance qualitatively and quantitatively the juice production. In this work, three different extracts produced by <i>Penicillium oxalicum</i> LS09 using agro-industrial residues were optimized and analyzed by mass spectrometry. It was observed an increased production of pectinases in the medium containing orange peel and optimized for production of pectin lyase and pectinesterase (PE). Interestingly, not only pectinases, but also different plant cell wall degrading enzymes (i.e. glucanases, xylanases, arabinases), with a higher ratio (42/73) was Journal of food science and technology1764-1775https://www.ebi.ac.uk/biostudies/studies/S-EPMC8021675biostudies-literaturePenicillium oxalicum secretomic analysis identify plant cell wall degrading enzymes important for fruit juice extraction.PMC8021675Berger MYates JRVainstein MHBeys-da-Silva WOBrandelli ASanti LfalsePenicillium oxalicum secretomic analysis identify plant cell wall degrading enzymes important for fruit juice extraction.Pectinases and other carbohydrate-active enzymes are important for the food industry, mainly for juice processing. In addition, the use of peels to produce enzymes can aggregate value to these agro-industrial residues and at the end of the process enhance qualitatively and quantitatively the juice production. In this work, three different extracts produced by <i>Penicillium oxalicum</i> LS09 using agro-industrial residues were optimized and analyzed by mass spectrometry. It was observed an increased production of pectinases in the medium containing orange peel and optimized for production of pectin lyase and pectinesterase (PE). Interestingly, not only pectinases, but also different plant cell wall degrading enzymes (i.e. glucanases, xylanases, arabinases), with a higher ratio (42/73) was 2021-01-01T00:00:00Z2021 May2026-05-31T06:06:30.666Z2025-02-19T01:55:33.789ZS-EPMC80216753389701410.1007/s13197-020-04688-9