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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
(
Author
),
ID
Cvelbar Weber, Nika
(
Author
),
ID
Veberič, Robert
(
Author
),
ID
Hudina, Metka
(
Author
),
ID
Jakopič, Jerneja
(
Author
)
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https://www.mdpi.com/2311-7524/7/11/478
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Abstract
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$_2$.
Language:
English
Keywords:
highbush blueberry
,
Vaccinium corymbosum
,
controlled atmosphere
,
storage
,
phenolics
,
weight loss
,
sugar-to-organic acid ratio
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:
14 str.
Numbering:
Vol. 7, iss. 11, art. 478
PID:
20.500.12556/RUL-133117
UDC:
543
ISSN on article:
2311-7524
DOI:
10.3390/horticulturae7110478
COBISS.SI-ID:
84572163
Publication date in RUL:
11.11.2021
Views:
888
Downloads:
163
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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.
Licensing start date:
09.11.2021
Secondary language
Language:
Slovenian
Keywords:
ameriška borovnica
,
skladiščenje
,
nadzorovana atmosfera
,
kemična sestava
,
kakovost
,
izguba teže
,
sladkorji
,
organske kisline
Projects
Funder:
ARRS - Slovenian Research Agency
Project number:
P4-0133
Name:
Trajnostno kmetijstvo
Funder:
ARRS - Slovenian Research Agency
Project number:
P4-0013
Name:
Hortikultura
Funder:
Other - Other funder or multiple funders
Funding programme:
Republic of Slovenia, Ministry of Education, Science and Sport
Project number:
Raziskovalci-2.0-KIS-529016
Funder:
Other - Other funder or multiple funders
Funding programme:
Republic of Slovenia, Ministry of Education, Science and Sport
Project number:
C3330-17-529016
Funder:
EC - European Commission
Funding programme:
Structural and Investment Funds
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