Rapid evaluation of ergosterol to detect yeast contamination in fruit juices
Foods and beverages are nutrient-rich systems prone to a rapid development of microorganisms that hamper their long-period storage. Particularly, yeasts are strong fermenters of fresh and processed fruits and vegetables; hence, they are often accountable for their spoilage and production of off-flav...
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| Veröffentlicht in: | European food research & technology 2023-02, Vol.249 (2), p.465-472 |
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| creator | Vella, Filomena Monica Calandrelli, Roberto Del Barone, Alessandra Guida, Marco Laratta, Bruna |
| description | Foods and beverages are nutrient-rich systems prone to a rapid development of microorganisms that hamper their long-period storage. Particularly, yeasts are strong fermenters of fresh and processed fruits and vegetables; hence, they are often accountable for their spoilage and production of off-flavor. This work provides a quick and easy tool to recognize and count the spoilage of juices with ergosterol as distinctive biomarker of molds and yeasts. Melon juice was reconstituted at natural physical–chemical parameters according to legislation, and
Saccharomyces cerevisiae
was selected as yeast to contaminate the juice. Chemical and enzyme tests were performed on the fresh juice to ensure its authentic properties. Ergosterol was then evaluated using a spectrophotometric method that was proven against the official plate count test. The study showed linear and consistent results and, therefore, the ergosterol molecule may be indicated for testing molds and yeasts in contaminated beverages, replacing the common and time-consuming analysis. |
| doi_str_mv | 10.1007/s00217-022-04145-1 |
| format | Article |
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Saccharomyces cerevisiae
was selected as yeast to contaminate the juice. Chemical and enzyme tests were performed on the fresh juice to ensure its authentic properties. Ergosterol was then evaluated using a spectrophotometric method that was proven against the official plate count test. The study showed linear and consistent results and, therefore, the ergosterol molecule may be indicated for testing molds and yeasts in contaminated beverages, replacing the common and time-consuming analysis.</description><identifier>ISSN: 1438-2377</identifier><identifier>EISSN: 1438-2385</identifier><identifier>DOI: 10.1007/s00217-022-04145-1</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Acids ; Agriculture ; Analytical Chemistry ; Beverages ; Biomarkers ; Biotechnology ; Chemistry ; Chemistry and Materials Science ; Contamination ; Councils ; Ergosterol ; Fermenters ; Flavonoids ; Food contamination ; Food contamination & poisoning ; Food quality ; Food safety ; Food Science ; Forestry ; Fruit juices ; Fruits ; Juices ; Legislation ; Microorganisms ; Mold ; Off flavor ; Original Paper ; Polyphenols ; Spectrophotometry ; Spoilage ; Yeast ; Yeasts</subject><ispartof>European food research & technology, 2023-02, Vol.249 (2), p.465-472</ispartof><rights>The Author(s) 2022</rights><rights>The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c244t-21bd0bdbc60a8560bfabe7fdae6e26861aaa0f8bab6686ed7e179da4c998c7033</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00217-022-04145-1$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00217-022-04145-1$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Vella, Filomena Monica</creatorcontrib><creatorcontrib>Calandrelli, Roberto</creatorcontrib><creatorcontrib>Del Barone, Alessandra</creatorcontrib><creatorcontrib>Guida, Marco</creatorcontrib><creatorcontrib>Laratta, Bruna</creatorcontrib><title>Rapid evaluation of ergosterol to detect yeast contamination in fruit juices</title><title>European food research & technology</title><addtitle>Eur Food Res Technol</addtitle><description>Foods and beverages are nutrient-rich systems prone to a rapid development of microorganisms that hamper their long-period storage. Particularly, yeasts are strong fermenters of fresh and processed fruits and vegetables; hence, they are often accountable for their spoilage and production of off-flavor. This work provides a quick and easy tool to recognize and count the spoilage of juices with ergosterol as distinctive biomarker of molds and yeasts. Melon juice was reconstituted at natural physical–chemical parameters according to legislation, and
Saccharomyces cerevisiae
was selected as yeast to contaminate the juice. Chemical and enzyme tests were performed on the fresh juice to ensure its authentic properties. Ergosterol was then evaluated using a spectrophotometric method that was proven against the official plate count test. 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Saccharomyces cerevisiae
was selected as yeast to contaminate the juice. Chemical and enzyme tests were performed on the fresh juice to ensure its authentic properties. Ergosterol was then evaluated using a spectrophotometric method that was proven against the official plate count test. The study showed linear and consistent results and, therefore, the ergosterol molecule may be indicated for testing molds and yeasts in contaminated beverages, replacing the common and time-consuming analysis.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00217-022-04145-1</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Acids Agriculture Analytical Chemistry Beverages Biomarkers Biotechnology Chemistry Chemistry and Materials Science Contamination Councils Ergosterol Fermenters Flavonoids Food contamination Food contamination & poisoning Food quality Food safety Food Science Forestry Fruit juices Fruits Juices Legislation Microorganisms Mold Off flavor Original Paper Polyphenols Spectrophotometry Spoilage Yeast Yeasts |
| title | Rapid evaluation of ergosterol to detect yeast contamination in fruit juices |
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