{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T02:35:17Z","timestamp":1778726117457,"version":"3.51.4"},"reference-count":60,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T00:00:00Z","timestamp":1623715200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["(UIDP\/04378\/2020"],"award-info":[{"award-number":["(UIDP\/04378\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/04378\/2020"],"award-info":[{"award-number":["UIDB\/04378\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["SFRH\/BD\/140829\/2018"],"award-info":[{"award-number":["SFRH\/BD\/140829\/2018"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Sciences"],"abstract":"<jats:p>The main goal of this study was to screen different lignocellulosic materials for their ability to support the cell growth of the yeast Komagataella pastoris and the production of xylitol. Several lignocellulosic materials, namely banana peels, brewer\u2019s spent grains (BSGs), corncobs, grape pomace, grape stalks, and sawdust, were subjected to dilute acid hydrolysis to obtain sugar rich solutions that were tested as feedstocks for the cultivation of K. pastoris. Although the culture was able to grow in all the tested hydrolysates, a higher biomass concentration was obtained for banana peels (15.18 \u00b1 0.33 g\/L) and grape stalks (14.58 \u00b1 0.19 g\/L), while the highest xylitol production (1.51 \u00b1 0.07 g\/L) was reached for the BSG hydrolysate with a xylitol yield of 0.66 \u00b1 0.39 g\/g. Cell growth and xylitol production from BSG were improved by detoxifying the hydrolysate using activated charcoal, resulting in a fourfold increase of the biomass production, while xylitol production was improved to 3.97 \u00b1 0.10 g\/L. Moreover, concomitant with arabinose consumption, arabitol synthesis was noticed, reaching a maximum concentration of 0.82 \u00b1 0.05 g\/L with a yield on arabinose of 0.60 \u00b1 0.11 g\/g. These results demonstrate the feasibility of using lignocellulosic waste, especially BSG, as feedstock for the cultivation of K. pastoris and the coproduction of xylitol and arabitol. Additionally, it demonstrates the use of K. pastoris as a suitable microorganism to integrate a zero-waste biorefinery, transforming lignocellulosic waste into two high-value specialty chemicals with high market demand.<\/jats:p>","DOI":"10.3390\/app11125516","type":"journal-article","created":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T11:00:33Z","timestamp":1623754833000},"page":"5516","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Biovalorization of Lignocellulosic Materials for Xylitol Production by the Yeast Komagataella pastoris"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4376-6471","authenticated-orcid":false,"given":"Diana","family":"Ara\u00fajo","sequence":"first","affiliation":[{"name":"UCIBIO-REQUIMTE, Chemistry Department, NOVA School of Sciences and Technology, Campus de Caparica, 2829-516 Caparica, Portugal"}]},{"given":"Tatiana","family":"Costa","sequence":"additional","affiliation":[{"name":"UCIBIO-REQUIMTE, Chemistry Department, NOVA School of Sciences and Technology, Campus de Caparica, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9430-4640","authenticated-orcid":false,"given":"Filomena","family":"Freitas","sequence":"additional","affiliation":[{"name":"UCIBIO-REQUIMTE, Chemistry Department, NOVA School of Sciences and Technology, Campus de Caparica, 2829-516 Caparica, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1514","DOI":"10.1080\/10408398.2012.702288","article-title":"Xylitol: A review on bioproduction, application, health benefits, and related safety issues","volume":"55","author":"Mushtaq","year":"2015","journal-title":"Crit. 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