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The results showed that mixed\u2010mode solar drying resulted in greater retention of vitamin C (112.60\u00a0mg\/100\u00a0g), carotenoids (0.37\u00a0mg\/g), and antioxidant activity (95.77%). The proximate analysis showed that mixed\u2010mode drying yielded better nutrient results, such as protein (3.29%), fat (3.33%), and ash (3.50%). The colorimetric analysis revealed that guava samples dried in mixed\u2010mode solar drying exhibited a lower total color difference (\u0394\n                      <jats:italic>E<\/jats:italic>\n                      = 8.92) compared to those dried in direct solar mode (\u0394\n                      <jats:italic>E<\/jats:italic>\n                      = 14.62) and electric stove (\u0394\n                      <jats:italic>E<\/jats:italic>\n                      = 14.95). Dryer efficiency varied between experiments. The mixed\u2010mode configuration achieved a solar collector efficiency of 34.89% and a drying efficiency of 13.16%. In contrast, the direct\u2010mode dryer achieved higher efficiency on the first day (18.43%), but its performance declined significantly on the second day of drying. These findings underscore the potential of mixed\u2010mode greenhouse solar drying as a promising technique for preserving guava quality while reducing overall drying time. Moreover, the system benefits from utilizing solar energy as its primary source, offering a sustainable and cost\u2010effective alternative to conventional drying methods.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Practical Applications<\/jats:title>\n                    <jats:p>The results of this research are of great importance for fruit drying using a greenhouse solar dryer, since the introduction of solar drying technologies will help the agricultural sector better conserve its crops, reduce losses, and increase the commercial value of its products. Furthermore, it presents an opportunity to introduce a new product\u2014dehydrated guava\u2014which, due to its concentrated active compounds, can be incorporated into dietary supplements, nutrition bars, fortified flours, and functional extracts used as additives in beverages, liquid supplement formulations, or capsules.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/1750-3841.71106","type":"journal-article","created":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T11:22:26Z","timestamp":1778584946000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Physicochemical and Thermal Evaluation of a Mixed\u2010Mode Greenhouse Solar Dryer for Guava (\n                    <i>Psidium guajava<\/i>\n                    L.)"],"prefix":"10.1111","volume":"91","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9775-4113","authenticated-orcid":false,"given":"Ana Mar\u00eda","family":"Lucho\u2010G\u00f3mez","sequence":"first","affiliation":[{"name":"Grupo de Secado Solar Instituto de Energ\u00edas Renovables\u2010UNAM Temixco Morelos M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5411-8264","authenticated-orcid":false,"given":"Alfredo","family":"Dom\u00ednguez\u2010Ni\u00f1o","sequence":"additional","affiliation":[{"name":"Grupo de Secado Solar Instituto de Energ\u00edas Renovables\u2010UNAM Temixco Morelos M\u00e9xico"},{"name":"Secretar\u00eda de Ciencia, Humanidades, Tecnolog\u00eda e Innovaci\u00f3n Direcci\u00f3n Adjunta de Desarrollo Cient\u00edfico Mexico City M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4508-1102","authenticated-orcid":false,"given":"Paulina","family":"Guill\u00e9n\u2010Vel\u00e1zquez","sequence":"additional","affiliation":[{"name":"Grupo de Secado Solar Instituto de Energ\u00edas Renovables\u2010UNAM Temixco Morelos M\u00e9xico"},{"name":"Secretar\u00eda de Ciencia, Humanidades, Tecnolog\u00eda e Innovaci\u00f3n Estancias Posdoctorales por M\u00e9xico  Mexico City M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0817-9060","authenticated-orcid":false,"given":"Juan Pablo","family":"Hern\u00e1ndez\u2010Jer\u00f3nimo","sequence":"additional","affiliation":[{"name":"Grupo de Secado Solar Instituto de Energ\u00edas Renovables\u2010UNAM Temixco Morelos M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4209-4928","authenticated-orcid":false,"given":"Mario","family":"Luna\u2010Flores","sequence":"additional","affiliation":[{"name":"Departamento de Ingenier\u00eda de Procesos Bioalimentarios Universidad Tecnol\u00f3gica del Centro de Veracruz  Cuitl\u00e1huac M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9478-4157","authenticated-orcid":false,"given":"Octavio","family":"Garc\u00eda\u2010Valladares","sequence":"additional","affiliation":[{"name":"Grupo de Secado Solar Instituto de Energ\u00edas Renovables\u2010UNAM Temixco Morelos M\u00e9xico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,12]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.heliyon.2024.e25131"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.18280\/ijht.420408"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.heliyon.2024.e24165"},{"key":"e_1_2_11_5_1","first-page":"S155","article-title":"Effect of Different Drying Treatments on Colour Quality and Ascorbic Acid Concentration of Guava Fruit","volume":"23","author":"Ali M. 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