Quantification and distribution of primary and secondary metabolites in the inner and outer parts of strawberry fruit

Šimkova, Kristyna (author), Veberič, Robert (author), Hudina, Metka (author), Cvelbar Weber, Nika (author), Smrke, Tina (author), Grohar, Mariana Cecilia (author), Burin, Tea (author), Pelacci, Massimiliano (author), Medič, Aljaž (author), Jakopič, Jerneja (author)

The distribution of primary and secondary metabolites within a fruit can affect its nutritional and organoleptic quality, as fruit can vary in size and shape. This study investigated the differences in the distribution of the primary and secondary metabolites in the fruit of four strawberry cultivars (‘Asia’, ‘Clery’, ‘Frederica’, and ‘Sandra’) that were collected at one harvest point. The study included an analysis of the individual sugars, organic acids, phenolic compounds, and enzymes responsible for the degradation of phenolics. All of the studied cultivars showed a lower pH, higher total organic acid content, and lower glucose and fructose content in the outer part of the fruit. Differences were also observed in the total phenolic and anthocyanin contents, which were always higher in the outer part. The absolute differences in the total phenolic content ranged from 3723 to 6154 mg kg$^{-1}$ dry weight. Our results provide a basis for understanding the differences in the biosynthesis of these metabolites within this fruit and prove that it is essential to mix samples well before extractions to obtain results that are representative of the whole fruit.

• Language: English
• Keywords: strawberry fruit, secondary metabolites, primary metabolites, phenolics, anthocyanins, sugars, organic acids, enzymes
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2023
• Number of pages: 13 str.
• Numbering: Vol. 9, iss. 5, art. 605
• PID: 20.500.12556/RUL-146297-b6cc72e9-c107-4b67-afdb-b5855565bd7d
• UDC: 634.1/.7
• ISSN on article: 2311-7524
• DOI: 10.3390/horticulturae9050605
• COBISS.SI-ID: 152997891
• Publication date in RUL: 23.05.2023

Record is a part of a journal

• Title: Horticulturae
• Shortened title: Horticulturae
• Publisher: MDPI
• ISSN: 2311-7524
• COBISS.SI-ID: 526326297

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: jagoda, primarni metaboliti, sekundarni metaboliti, antocianini, sladkorji, fenolne spojine, organske kisline, encimi

Projects

• Funder: EC - European Commission
• Funding programme: H2020
• Project number: 956257
• Name: Establishing a strong and lasting international training network for innovation in food and juice industries: a 4D-research approach for fruit juice processing
• Acronym: HiStabJuice

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