Changes in metabolite patterns during refrigerated storage of lamb's lettuce (Valerianella locusta L. Betcke)

Schmitzer, Valentina (author), Šenica, Mateja (author), Slatnar, Ana (author), Štampar, Franci (author), Jakopič, Jerneja (author)

Lamb's lettuce is a popular winter salad, often grown in private vegetable plots, small local farms or in intensive vegetable production. It is usually marketed as a ready-to-eat produce in supermarkets. The aim of the study was to evaluate the changes in biochemical composition and degradation of bioactive compounds during consumer-relevant time of home-grown and store-bought Valerianella locusta "Vit" salad. Primary metabolites, assimilatory pigments as well as secondary metabolites were monitored during 1 week of refrigerated storage. Home-grown lamb's lettuce exhibited highest levels of total sugars, total organic acids, vitamin C, and total phenolic content as well as enhanced levels of most individual phenolic compounds and chloroplast pigments. Locally produced samples of lamb's lettuce also contained high levels of analyzed bioactive components. All samples retained most bioactive components during the entire period of refrigerated storage. The results underline the instability of vitamin C during refrigerated storage of lamb's lettuce and pinpoint this parameter as being the most affected by storage.

• Language: English
• Keywords: Valerianella locusta, primary metabolites, storage, chlorophyll, phenolics, carotenoids
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2021
• Number of pages: 10 str.
• Numbering: Vol. 8, art. 731869
• PID: 20.500.12556/RUL-133320
• UDC: 543
• ISSN on article: 2296-861X
• DOI: 10.3389/fnut.2021.731869
• COBISS.SI-ID: 85888003
• Publication date in RUL: 22.11.2021

Record is a part of a journal

• Title: Frontiers in nutrition
• Shortened title: Front. nutr.
• Publisher: Frontiers Media
• ISSN: 2296-861X
• COBISS.SI-ID: 4431992

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: Valerianella locusta, primarni metaboliti, fenoli, karotenoidi, klorofil, skladiščenje

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P4-0013
• Name: Hortikultura