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The vitamin C content of orange juice packed in an oxygen scavenger material
Abstract
A storage study of orange juice packed in oxygen scavenging (OS) film and oxygen barrier film was conducted to determine the extent of ascorbic acid loss due to oxygen as a function of time and temperature. The initial concentration of ascorbic acid in the orange juice was 374 mg/l and this was found to decrease by 74 and 104 mg/l after 3 days of storage at 25 °C in the OS and oxygen barrier film, respectively. This rapid loss in ascorbic acid correlated well with the amount of oxygen initially present in the headspace and that dissolved in the juice. The loss of ascorbic acid also correlated with an increase in the browning of the juice, where the extent of browning was found to be lower for the juice packed in the OS film than that packed in the oxygen barrier material. The rapid removal of oxygen was found to be an important factor in sustaining a higher concentration of ascorbic acid over long storage times.
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“Degradation of vitamin C depends on many factors during the storage condition such as temperature, oxygen, and light (Zerdin et al., 2003).”
From Inactivation kinetic of selected pathogens of coconut water by dimethyl dicarbonate and microbial shelf life during cold storage (2021) · cites this paper as Zerdin et al., 2003
Citations
Cites
Khán, M. M. T., & Martell, A. E. (1967) · Journal of the American Chemical Society · doi:10.1021/ja00992a036 · Cited by 506
Rooney, M. L. (1995) · Springer eBooks · doi:10.1007/978-1-4615-2175-4 · Cited by 378
Self-citationActive Packaging for Food Applications
Brody, A. L., Strupinsky, E., & Kline, L. R. (2001) · CRC Press eBooks · doi:10.1201/9781420031812 · Cited by 376
Browning determination in citrus products
Meydav, S., Saguy, I. S., & KOPELMAN, I. J. (1977) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf60211a030 · Cited by 227
Active Packaging for Food Applications
Brody, A. L., Strupinsky, E., & Kline, L. R. (2001) · CRC Press eBooks · doi:10.1201/9780367801311 · Cited by 194
Khán, M. M. T., & Martell, A. E. (1967) · Journal of the American Chemical Society · doi:10.1021/ja01002a046 · Cited by 144
Studies on the occurrence of non-enzymatic browning during storage of citrus juice
Roig, M. G., Bello, J. F., Rivera, Z. S., & Kennedy, J. F. (1999) · Food Research International · doi:10.1016/s0963-9969(99)00128-3 · Cited by 143
Alicyclobacillus in Orange Juice: Occurrence and Heat Resistance of Spores
Eiroa, M. N. U., Junqueira, V. C. A., & Schmidt, F. L. (1999) · Journal of Food Protection · doi:10.4315/0362-028x-62.8.883 · Cited by 130
Effect of oxygen and fluorescent light on the quality of orange juice during storage at 8°C
Solomon, O., Svanberg, U., & Sahlström, A. (1995) · Food Chemistry · doi:10.1016/0308-8146(95)99828-n · Cited by 111
Wilson, R. J., Beezer, A., & Mitchell, J. C. (1995) · Thermochimica Acta · doi:10.1016/0040-6031(95)02373-a · Cited by 86
Research works printed but not linked: 1
- Anon. (1982). Leitsätze für Fruchtsäfte in English: 1.7.1982 notification. In Bundesanzeiger (Federal Journal) of 1.7.1982, supplement. Germany.
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Oghbaei, M., & Prakash, J. (2013) · Food Bioscience · doi:10.1016/j.fbio.2013.08.001 · Cited by 9
Skrypec, S., Doh, H., & Whiteside, W. S. (2021) · Journal of Food Process Engineering · doi:10.1111/jfpe.13681 · Cited by 8
Li, T., & Zhang, M. (2013) · Food Science and Technology Research · doi:10.3136/fstr.19.569 · Cited by 8
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Worametrachanon, S., Techarang, J., Chaikham, P., et al. (2014) · International Food Research Journal · Cited by 6
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Lima, M. B., Santos, H. V., Barbosa, J., et al. (2023) · Anais da Academia Brasileira de Ciências · doi:10.1590/0001-3765202320191092 · Cited by 2
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Nguyen, K. A., Boerkamp, V. J. P., Dubbelboer, A., et al. (2025) · Food Chemistry · doi:10.1016/j.foodchem.2025.146396 · Cited by 1
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Ara, R., Saha, B. K., Motalab, M., Haque, M. Z., & Fakhruddin, A. N. M. (2016) · Bangladesh Journal of Botany · Cited by 1
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Khalil, T. A. K. (2017) · Mağallaẗ zirāʿaẗ al-rāfidayn · doi:10.33899/magrj.2017.161257 · Cited by 1
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BackgroundIqbal, M. W., Riaz, T., Leghari, A. A., Amin, S., Shahid, S., Khan, I. M., Mahmood, S., & Yasmin, I. (2022) · MedPress Nutrition & Food Sciences · doi:10.33582/mpnfs.2022.202208003 · Cited by 1
Rysstad, G., & Johnstone, K. (2009) · Elsevier eBooks · doi:10.1533/9781845695569.1.107 · Cited by 1
Fate of vitamin C in commercial fruit juices
Nagra, S. (2007) · Tuwhera (Auckland University of Technology) · Cited by 1
Propriedades de barreira em sistemas de embalagem para azeite de oliva
Botti, L. C. M. (2014) · doi:10.47749/t/unicamp.2014.931342 · Cited by 1
Cook, L. N. (2009) · doi:10.31390/gradschool_theses.2590 · Cited by 1
“…quite efficient in preventing microbial spoilage of fruit juice, TP may cause undesirable biochemical and nutritious changes which may affect overall quality of the fruit juice such as nutrients, color, flavor, and texture (Alwazeer et al., 2003, Zerdin et al., 2003; Aguilar-Rosas et al., 2007).”
BackgroundGriffin, J., Cocco, D. A., Auras, R. A., Carter, S. J., Firdaus, V., Tong, P. P., Marashin, N. J., Hernández, R. J., Cooksey, K., Miller, R. C., et al. (2009) · doi:10.1002/9780470541395.ch16
Introduction of biological and active Modified Atmosphere Packaging through microorganisms
Darvishzadeh, P. (2013) · Lund University Publications Student Papers (Lund University)
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Berlinet, C. (2006) · HAL (Le Centre pour la Communication Scientifique Directe)
Gheisari, H. R., Nejati, R., & Shamsaei, H. A. (2011)
Whitaker, S., Viveros-Contreras, R., Enrique, L., et al. (2013)
de Moraes, F. P., da Silva, E. S., Rocha, P., et al. (2015) · doi:10.5151/chemeng-cobeq2014-2059-16064-142517
SIMULAÇÃO DAS PERDAS DE ÁCIDO ASCÓRBICO DURANTE A PASTEURIZAÇÃO DO SUCO DE LARANJA
LIMA, K. T. M., Terra, S. D. V., & Vieira, R. P. (2015) · doi:10.5151/chemeng-cobeqic2015-339-33940-260686
ESTUDO DA VIDA-DE-PRATELEIRA DO SUCO DE LARANJA CONCENTRADO E CONGELADO
Filho, M., & Araraquara, C. D. (2006)
PREDICTION AND CONTROL OF VITAMIN C LOSS IN SPACEFLIGHT FOODS
Dixon, W. (2021) · ScholarWorks@UMassAmherst (University of Massachusetts Amherst) · doi:10.7275/13490124
Determination of vitamin C in juices available in local markets using HPLC technology.
Aliaa, S. A. A.-F. D., Al-Hamdani, H. M. S., & Huda, J. H. (2019) · Biochemical and Cellular Archives/Biochemical and cellular archives
(2005) · Food science and technology · doi:10.1201/9781420026979.ch15
Desenvolvimento de embalagens termoativas
Fernandes, B. C. N. (2020) · doi:10.47749/t/unicamp.2020.1141253
Park, J.-H. (2022) · Journal of the East Asian Society of Dietary Life · doi:10.17495/easdl.2022.10.32.5.303
Green Nanotechnology in Food Packaging and Preservation
Shah, D. P., & Krishnakumar, A. (2025) · Springer eBooks · doi:10.1007/978-3-031-90766-1_9
Multivariate Evaluation of Vitamin and Mineral Retention Across Diverse Foods and Processing Methods
Durmuş, Y. (2025) · International Journal of Agriculture Environment and Food Sciences · doi:10.31015/2025.4.38
Spieser, H. (2020) · doi:10.70675/05006c2ez0b4dz4104z984dz3d68b0e69c3f
Packaging of Fruit Juices: Technologies and Recent Innovations
Thuengtung, S., Apintanapong, M., & Punbusayakul, N. (2026) · Elsevier eBooks · doi:10.1016/b978-0-443-34158-8.00153-5
Caregnato, M., Gelinski, J. M. L. N., & Locatelli, C. (2014) · International Journal of Sciences: Basic and Applied Research
Metadata
- Authors
- Zerdin, K., Rooney, M. L., & Vermuë, J.
- Affiliations
- UNSW Sydney (AU)
- Netherlands Organisation for Applied Scientific Research (NL)
- Corresponding author
- Zerdin, Katherine
- Venue
- Food Chemistry
- Publisher
- Elsevier BV
- Published
- 2003-08
- Volume
- 82
- Issue
- 3
- Pages
- 387-395
- ISSN
- 0308-8146 (ISSN-L)
- OpenAlex
- W2015874788
- Semantic Scholar
- 1e9a1cf0ddee3618aa0357c79f24e1d0ce7603d9
- Cited by
- 190
- References
- 21
- Citations by year
- 2026: 2 · 2025: 7 · 2024: 4 · 2023: 6 · 2022: 7 · 2021: 10 · 2020: 6 · 2019: 10 · 2018: 5 · 2017: 16 · 2016: 11 · 2015: 12 · 2014: 11 · 2013: 12 · 2012: 10
- FWCI
- 5.92
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Food Chemistry (publishedVersion)
- TNO Repository (submittedVersion)
- Repository hosted by TU Delft Library (TU Delft) (submittedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion)
- Funders
- Commonwealth Scientific and Industrial Research Organisation
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Postharvest Quality and Shelf Life Management
- Life Sciences › Agricultural and Biological Sciences › Food Science › Food Nutrient Composition and Product Development
- Health Sciences › Medicine › Biochemistry (medical) › Phytochemicals and Antioxidant Activities
- Keywords
- orange juice, vitamin C, oxygen barrier films, juice packaging, storage stability, browning, headspace oxygen, temperature effects
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