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However, the high perishability of the fruit limits its distribution and postharvest conservation. In this context, the use of technologies that support fruit preservation becomes essential. Chitosan stands out for forming a natural biofilm that protects fruits against pathogens, in addition to reducing gas exchange and water loss. The aim of this study was to evaluate the application of different chitosan concentrations for the preservation of \u2018Roxo de Valinhos\u2019 figs during cold refrigerated storage. The experimental design was completely randomized in a split-plot arrangement, with five chitosan concentrations and five evaluation times. During refrigerated storage, chitosan-coated figs showed reduced deterioration, with up to 78% reduction in fruit decay compared with the control. The 1.2% coating delayed firmness loss, maintaining fruit firmness at 0.60 N after 20 days, compared with 0.52 N in untreated fruits. In addition, chitosan treatments reduced sugar accumulation, with 1.2% chitosan limiting reducing sugar increase to 29.09%. The preservative action of the biofilm was evidenced by correlation analysis, which associated coated fruits with better maintenance of physicochemical characteristics during storage. Correlation analysis indicated the preservative effect of the biopolymer, associating coated fruits with improved maintenance of physicochemical quality indicators during storage.<\/jats:p>","DOI":"10.1177\/10820132261499147","type":"journal-article","created":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T04:50:54Z","timestamp":1792644654000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Biopolymer-based technology for maintaining quality parameters and extending the shelf life of figs"],"prefix":"10.1177","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1938-5281","authenticated-orcid":false,"given":"Gabriel","family":"Maluf Napole\u00e3o","sequence":"first","affiliation":[{"name":"S\u00e3o Paulo State University (UNESP)","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2258-1355","authenticated-orcid":false,"given":"Sarita","family":"Leonel","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University (UNESP)","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caroline","family":"Pardine Cardoso","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University (UNESP)","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felipe","family":"Rezende de Moura Ribeiro","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University (UNESP)","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2440-0282","authenticated-orcid":false,"given":"Marcelo de Souza","family":"Silva","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University (UNESP)","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luisa","family":"Santos Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University (UNESP)","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Clara","family":"Chalita Martins","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University (UNESP)","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marco Antonio","family":"Tecchio","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University (UNESP)","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7896-2398","authenticated-orcid":false,"given":"Magali","family":"Leonel","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University (UNESP)","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,10,21]]},"reference":[{"key":"e_1_3_3_2_1","doi-asserted-by":"publisher","DOI":"10.1080\/15538362.2026.2629105"},{"key":"e_1_3_3_3_1","doi-asserted-by":"publisher","DOI":"10.3390\/agriculture9040084"},{"key":"e_1_3_3_4_1","doi-asserted-by":"publisher","DOI":"10.21273\/HORTSCI16416-21"},{"key":"e_1_3_3_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.fpsl.2014.10.003"},{"key":"e_1_3_3_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.foodchem.2010.06.085"},{"key":"e_1_3_3_7_1","doi-asserted-by":"publisher","DOI":"10.33448\/rsd-v11i2.25745"},{"key":"e_1_3_3_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.fpsl.2023.101030"},{"key":"e_1_3_3_9_1","doi-asserted-by":"crossref","unstructured":"Aparicio-Garc\u00eda PF Ventura-Aguilar RI R\u00edo-Garc\u00eda JC et al. 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