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Packaging preservation of beta-carotene in sweet potato flakes using flexible film and an oxygen absorber  [1999]

Emenhiser, C. Watkins, R.H. Simunovic, N. Solomons, N. et al.

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Abstract
Sweet potato flakes are potentially an affordable, shelf-stable source of provitamin A beta-carotene. Because beta-carotene is susceptible to oxidative degradation, particularly in dehydrated food materials exposed to atmospheric oxygen, several packaging conditions were evaluated for enhancement of beta-carotene retention in sweet potato flakes during storage. The flakes were packaged in either a polypropylene film (high oxygen permeability) with air headspace or a nylon laminate film (low oxygen permeability) with air headspace, under vacuum, or with an Ageless oxygen absorber sachet enclosed. Packaged flakes were stored in the dark at ambient laboratory temperature (approximately 23C), and beta-carotene content was determined at intervals from 0 to 210 day storage using reversed-phase liquid chromatography. Among the packaging conditions tested, beta-carotene retention was enhanced incrementally as the apparent availability of oxygen was reduced (nylon > polypropylene; oxygen absorber > vacuum > air headspace). The combined use of oxygen absorbers and flexible oxygen barrier film gave excellent retention of beta-carotene during the 210 day trial.
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Other subjects

  • dried foods
  • food packaging
  • sweet potatoes
  • beta-carotene
  • permeability
  • packaging materials
  • oxygen
  • food preservation

From the journal

Journal of food quality

ISSN : 0146-9428

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Other information

Language : English

Type : Journal Article

In AGRIS since : 2013

Volume : 22

Issue : 1

Start Page : 63

End Page : 73

All titles :

" Packaging preservation of beta-carotene in sweet potato flakes using flexible film and an oxygen absorber "