{"id":398,"date":"2022-01-22T10:06:42","date_gmt":"2022-01-22T13:06:42","guid":{"rendered":"https:\/\/wp.ufpel.edu.br\/bionano\/?page_id=398"},"modified":"2022-01-22T10:09:37","modified_gmt":"2022-01-22T13:09:37","slug":"effect-of-physical-pretreatments-on-the-hydrolysis-kinetic-structural-and-thermal-properties-of-pinhao-starch-nanocrystals","status":"publish","type":"page","link":"https:\/\/wp.ufpel.edu.br\/bionano\/producao-cientifica\/2021-2\/effect-of-physical-pretreatments-on-the-hydrolysis-kinetic-structural-and-thermal-properties-of-pinhao-starch-nanocrystals\/","title":{"rendered":"Effect of Physical Pretreatments on the Hydrolysis Kinetic, Structural, and Thermal Properties of Pinh\u00e3o Starch Nanocrystals"},"content":{"rendered":"<h3><em><strong><span class=\"accordion-tabbed__tab-mobile accordion__closed\">V\u00e2nia Zanella Pinto<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Khalid Moomand<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Vinicius Goncalves Deon<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Barbara Biduski<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Elessandra da Rosa Zavareze<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Gabriela Caroline Lenhani<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Gustavo Henrique Fidelis dos Santos<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Loong-Tak Lim<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Alvaro Renato Guerra Dias<\/span><\/strong><\/em><\/h3>\n<h3 class=\"article-section__header main abstractlang_en main\"><strong>Abstract<\/strong><\/h3>\n<div class=\"article-section__content en main\">\n<h3 style=\"text-align: justify\">Starch nanocrystals (SNCs) are insoluble platelet particles with multifunctional properties. SNCs production is mainly based on acid hydrolysis of cornstarch with low yield. This study focuses on investigating the effect of pretreatments (heat-moisture-treatment [HMT], annealing [ANN], and sonication [SNT]) on unconventional pinh\u00e3o starch to produce SNCs by acid hydrolysis to improve the yield and SNCs properties. All starches hydrolysis is described by a first-order model reaction and shown two phases related at\u00a0<i>k<\/i>\u00a0values. The faster hydrolysis is from SNT (<i>k<\/i>\u00a0=\u00a00.61\u00a0day<sup>\u22121<\/sup>) and the slower one is at ANN (<i>k<\/i>\u00a0=\u00a00.40\u00a0day<sup>\u22121<\/sup>). Furthermore, the acid hydrolysis is described by a rapid (0\u20132 days) phase, followed by a slow phase lasing 3\u20137 days. The HMT increases the yield of the SNCs (14.7%) but promotes losses in the RC (47.34%) as compared with the native starch (yield 10.23%; RC 52.23%). The ANN improves crystallites perfection, protecting them from acid attack. The pretreatments allow pinh\u00e3o starch to be used as promising feedstock to produce SNCs with good yield and RC. In addition, ANN can be useful to improve the thermal stability and SNT to speeding up the hydrolysis for SNCs production, while HMT can increase the hydrolysis yield.<\/h3>\n<p><a href=\"https:\/\/doi.org\/10.1002\/star.202000008\">https:\/\/doi.org\/10.1002\/star.202000008<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>V\u00e2nia Zanella Pinto, Khalid Moomand, Vinicius Goncalves Deon, Barbara Biduski, Elessandra da Rosa Zavareze, Gabriela Caroline Lenhani, Gustavo Henrique Fidelis dos Santos, Loong-Tak Lim, Alvaro Renato Guerra Dias Abstract Starch nanocrystals (SNCs) are insoluble platelet particles with multifunctional properties. SNCs production is mainly based on acid hydrolysis of cornstarch with low yield. This study focuses&#8230; <\/p>\n<div class=\"link-more\"><a href=\"https:\/\/wp.ufpel.edu.br\/bionano\/producao-cientifica\/2021-2\/effect-of-physical-pretreatments-on-the-hydrolysis-kinetic-structural-and-thermal-properties-of-pinhao-starch-nanocrystals\/\">Leia mais<\/a><\/div>\n","protected":false},"author":1158,"featured_media":0,"parent":373,"menu_order":6,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-398","page","type-page","status-publish","hentry"],"publishpress_future_action":{"enabled":false,"date":"2026-04-22 01:12:10","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/wp.ufpel.edu.br\/bionano\/wp-json\/wp\/v2\/pages\/398","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ufpel.edu.br\/bionano\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.ufpel.edu.br\/bionano\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ufpel.edu.br\/bionano\/wp-json\/wp\/v2\/users\/1158"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ufpel.edu.br\/bionano\/wp-json\/wp\/v2\/comments?post=398"}],"version-history":[{"count":2,"href":"https:\/\/wp.ufpel.edu.br\/bionano\/wp-json\/wp\/v2\/pages\/398\/revisions"}],"predecessor-version":[{"id":404,"href":"https:\/\/wp.ufpel.edu.br\/bionano\/wp-json\/wp\/v2\/pages\/398\/revisions\/404"}],"up":[{"embeddable":true,"href":"https:\/\/wp.ufpel.edu.br\/bionano\/wp-json\/wp\/v2\/pages\/373"}],"wp:attachment":[{"href":"https:\/\/wp.ufpel.edu.br\/bionano\/wp-json\/wp\/v2\/media?parent=398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}