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Modified atmospheric CO$_2$ levels for maintenance of fruit weight and nutritional quality upon long-term storage in blueberry (Vaccinium corymbosum L.) 'Liberty'
ID Smrke, Tina (Avtor), ID Cvelbar Weber, Nika (Avtor), ID Veberič, Robert (Avtor), ID Hudina, Metka (Avtor), ID Jakopič, Jerneja (Avtor)

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Izvleček
Blueberry fruits have gained consumer attention in recent years due to their good taste and high nutritional value. However, the short shelf-life of the fruit is one of the main downsides in intensive blueberry production. Therefore, optimized storage technology with a modified atmosphere is necessary to prolong blueberry fruit quality on the market. The aim of this study was to investigate long-term storage of fruit of the highbush blueberry (Vaccinium corymbosum L.) ‘Liberty’ under the air control (0.5% CO$_2$, 19.5% O$_2$, 80% N$_2$) and controlled atmosphere conditions of: 5% CO$_2$, 5% O$_2$, 90% N$_2$; 15% CO$_2$, 5% O$_2$, 80% N$_2$; and 25% CO$_2$, 5% O$_2$, 70% N$_2$. Fruit sampling was performed four times during storage (17, 30, 44, 62 days). Evaluation was carried out for fruit weight, total and individual sugar and organic acid contents, sugar-to-organic acid ratio, and individual phenolics contents. After 44 days of storage, weight loss was highest with 15% CO$_2$ and lowest with 5% CO$_2$, with minor variations. The greatest breakdown of total sugars was seen for the air control, and the least for 25% CO$_2$. Organic acids were significantly reduced under all of these storage conditions. Consequently, a high sugar-to-organic acid ratio was maintained in fruit stored with 25% CO$_2$. The contents of all of the identified phenolics significantly decreased with 15% and 25% CO$_2$. After 62 days of storage with 5% CO$_2$, there were small decreases in flavan-3-ols and hydroxycinnamic acids, while flavonoid and anthocyanin contents were unchanged, or for some individual phenolics, content increased. These data show that 15% CO$_2$ or higher accelerates degradation of the phenolics. We can conclude that for maintenance of weight and nutritional quality of the blueberry fruit ‘Liberty’, the optimal controlled atmosphere under long-term storage is 5% CO$_2$, 5% O$_2$, and 90% N$_2$.

Jezik:Angleški jezik
Ključne besede:highbush blueberry, Vaccinium corymbosum, controlled atmosphere, storage, phenolics, weight loss, sugar-to-organic acid ratio
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:BF - Biotehniška fakulteta
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2021
Št. strani:14 str.
Številčenje:Vol. 7, iss. 11, art. 478
PID:20.500.12556/RUL-133117 Povezava se odpre v novem oknu
UDK:543
ISSN pri članku:2311-7524
DOI:10.3390/horticulturae7110478 Povezava se odpre v novem oknu
COBISS.SI-ID:84572163 Povezava se odpre v novem oknu
Datum objave v RUL:11.11.2021
Število ogledov:1015
Število prenosov:175
Metapodatki:XML DC-XML DC-RDF
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Gradivo je del revije

Naslov:Horticulturae
Skrajšan naslov:Horticulturae
Založnik:MDPI
ISSN:2311-7524
COBISS.SI-ID:526326297 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:09.11.2021

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:ameriška borovnica, skladiščenje, nadzorovana atmosfera, kemična sestava, kakovost, izguba teže, sladkorji, organske kisline

Projekti

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P4-0133
Naslov:Trajnostno kmetijstvo

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P4-0013
Naslov:Hortikultura

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Republic of Slovenia, Ministry of Education, Science and Sport
Številka projekta:Raziskovalci-2.0-KIS-529016

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Republic of Slovenia, Ministry of Education, Science and Sport
Številka projekta:C3330-17-529016

Financer:EC - European Commission
Program financ.:Structural and Investment Funds

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