[et_pb_section fb_built=”1″ admin_label=”section” _builder_version=”4.16″ global_colors_info=”{}”][et_pb_row admin_label=”row” _builder_version=”4.16″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.23″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″]<\/p>\n
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Whey is a dairy residue generated during the production of cheese and yogurt. Whey contains mainly lactose and proteins, contributing to its high chemical oxygen demand (COD). Current environmental regulations request proper whey disposal to avoid environmental pollution. Whey components can be transformed by yeast into ethanol and biomolecules with aroma and flavor properties, for example, 2-phenyethanol (2PE), highly appreciated in the industry due to its organoleptic and biocidal properties. The present study aimed to valorize agri-food residues in 2PE by developing suitable bioprocess. Cheese whey was used as substrate source, whereas crab headshells, residual soy cake, and brewer’s spent yeast (BSY) were used as renewable nitrogen sources for the yeasts\u00a0<\/span>Kluyveromyces marxianus<\/i>\u00a0and\u00a0<\/span>Debaryomyces hansenii<\/i>. The BSYs promoted the growth of both yeasts and the production of 2PE in flask fermentation. The bioprocess scale-up to 2 L bioreactor allowed for obtaining a 2PE productivity of 0.04 g<\/span>2PE<\/sub>\/L\u00b7h, twofold better productivity results compared to the literature. The bioprocess can save a treatment unit because the whey COD decreased under the detection limit of the analytical method, which is lower than environmental requirements. In this way, the bioprocess prevents environmental contamination and contributes to the circular economy of the dairy industry.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.23″ _module_preset=”default”][et_pb_column _builder_version=”4.23″ _module_preset=”default” type=”4_4″][et_pb_button button_text=”read Article” _builder_version=”4.23″ _module_preset=”default” button_url=”https:\/\/pubmed.ncbi.nlm.nih.gov\/37513409\/” custom_button=”on” button_text_size=”14px” button_alignment=”center” hover_enabled=”0″ sticky_enabled=”0″][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.23″ _module_preset=”default”][et_pb_column _builder_version=”4.23″ _module_preset=”default” type=”4_4″][et_pb_text _builder_version=”4.23″ _module_preset=”default” text_font=”Poppins||on||||||” text_font_size=”12px” hover_enabled=”0″ sticky_enabled=”0″ custom_margin=”||-178px|||”]<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" M. Valdez Castillo \u00b7 S. Kaur Brar \u00b7 S. Arriaga \u00b7\u00a0J-F….<\/p>\n","protected":false},"author":9,"featured_media":3559,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[62],"tags":[],"class_list":["post-3605","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publications-en"],"_links":{"self":[{"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/posts\/3605","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/comments?post=3605"}],"version-history":[{"count":3,"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/posts\/3605\/revisions"}],"predecessor-version":[{"id":3609,"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/posts\/3605\/revisions\/3609"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/media\/3559"}],"wp:attachment":[{"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/media?parent=3605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/categories?post=3605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnete.qc.ca\/en\/wp-json\/wp\/v2\/tags?post=3605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n\n
\n Valdez Castillo, Mariana, Satinder Kaur Brar, Sonia Arriaga, Jean-Fran\u00e7ois Blais, Mich\u00e8le Heitz, et Antonio Avalos Ramirez. \u00ab\u00a0Co-Fermentation of Agri-Food Residues Using a Co-Culture of Yeasts as a New Bioprocess to Produce 2-Phenylethanol\u00a0\u00bb. Molecules<\/em> 28, no<\/sup> 14 (20 juillet 2023).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n