Changes in nutritional value of a multi-vitamins fortified juice packed in glass and standard PET bottles

Bacigalupi, Celine; Maurey, Aurélie; Boutroy, N.; Peyron, Stéphane; Avallone, Sylvie; Chalier, Pascale

doi:10.1016/j.foodcont.2015.07.039

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…These chemical agents were selected because they have been reported to cause superficial changes and failures in PET materials (ethanol, sodium hydroxide and sodium bicarbonate). Some of these agents, as well, are found in commercialized drinks (phosphoric acid, ascorbic acid, and citric acid) 8,[29][30][31][32] . Solutions using these chemical agents were prepared in molar concentrations of 3 mol.…”

Section: Methodsmentioning

confidence: 99%

Use of Infrared Spectroscopy and Near Infrared Hyperspectral Images to Evaluate Effects of Different Chemical Agents on PET Bottle Surface

et al. 2018

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PET-poly (ethylene terephthalate)-bottle surfaces were exposed to chemical agents and evaluated with middle infrared spectroscopy (MIR) and near infrared hyperspectral imaging (HSI-NIR). Images (928-2.524 nm) were acquired at different times from bottle surfaces exposed to alkaline, acidic and ethanolic media. Savitzky-Golay smoothing (2 nd order polynomial and 5-point window) combined with Standard Normal Variate (SNV) was used for pre-processing data. Scores from principal component analysis (PCA) on images showed discrimination of PET according to exposure time, particularly when employing NaOH. After the first two hours of chemical exposure, significant contribution of the (-CO + OH) combination band indicated formation of glycol ethylene on the PET surface, which was confirmed from PCA loading plots. MIR reflectance spectra ranged from 4.000 to 650 cm-1. Changes in spectral intensities could be associated with depolymerization of PET when exposed to NaOH. These were confirmed with PCA and attributed to the carboxylate group of terephthalate.

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Section: Methodsmentioning

confidence: 99%

Use of Infrared Spectroscopy and Near Infrared Hyperspectral Images to Evaluate Effects of Different Chemical Agents on PET Bottle Surface

et al. 2018

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“…It can react with reactive oxygen species (photo-initiated or heat-initiated in packaging processing) via two one-electron exchanges to dehydroascorbic acid (DHA) with monodehydroascorbic acid as the intermediate in an easily reversible reaction. Depending on the radical count in the matrix, the flexibility of the stabilized intermediate radical structure can provide either an antioxidative, quenching other radicals by forming DHA, or a prooxidative nature, abstracting hydrogen from non-radical organics and forming L-AA [141][142][143]. Instead of reverting back to L-AA, DHA can also undergo a hydrolysis reaction, forming 2,3-diketogulonic acid through ring cleavage.…”

Section: Antioxidantsmentioning

confidence: 99%

Barriers and Chemistry in a Bottle: Mechanisms in Today’s Oxygen Barriers for Tomorrow’s Materials

2017

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The stability of many organic compounds is challenged by oxidation reactions with molecular oxygen from the air in accordance with thermodynamics. Whereas glass or metal containers may protect such products, these packaging types also offer severe disadvantages over plastics. Large-scale packaging, especially for food and beverage industries, has shifted towards polymeric materials with passive and active oxygen barrier technologies over the last decades. Even though patent literature is flooded with innovative barrier systems, the mechanisms behind them are rarely reported. In a world where packaging requirements regarding recyclability and safety are continuously getting stricter, accompanied by the appearance of emerging applications for plastic oxygen barriers (such as organic semiconductors), research towards new materials seems inevitable. To this cause, proper in-depth knowledge of the existing solutions is a prerequisite. This review therefore attempts to go deep into the problems at hand and explain the chemistry behind the existing solution strategies and finally discusses perspectives suggesting new applications such as organic light-emitting diodes (OLEDs) and solar cells.

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Effects and impacts of technical processing units on the nutrients and functional components of fruit and vegetable juice

Lan

Wang

Bao

et al. 2023

Food Research International

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Changes in nutritional value of a multi-vitamins fortified juice packed in glass and standard PET bottles

Cited by 4 publications

References 33 publications

Use of Infrared Spectroscopy and Near Infrared Hyperspectral Images to Evaluate Effects of Different Chemical Agents on PET Bottle Surface

Use of Infrared Spectroscopy and Near Infrared Hyperspectral Images to Evaluate Effects of Different Chemical Agents on PET Bottle Surface

Barriers and Chemistry in a Bottle: Mechanisms in Today’s Oxygen Barriers for Tomorrow’s Materials

Effects and impacts of technical processing units on the nutrients and functional components of fruit and vegetable juice

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