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. 2017 Mar;54(3):743-750.
doi: 10.1007/s13197-017-2514-y. Epub 2017 Feb 16.

Quality, storability, and essential oil content of Ligularia fischeri during modified atmosphere packaging storage

M A Mele  1 , M Z Islam  1   2 , J P Baek  3 , H M Kang  1   2
Affiliations

Quality, storability, and essential oil content of Ligularia fischeri during modified atmosphere packaging storage

M A Mele et al. J Food Sci Technol. 2017 Mar.

Abstract

Modified atmosphere packaging (MAP) enhanced the quality and storability of Ligularia fischeri. Oxygen transmission rate (OTR) films were used as a MAP. MAP storage displayed lower fresh weight loss than perforated film. The oxygen, carbon dioxide, and ethylene concentration were properly maintained by a 10,000 cc OTR packaging film at 8 °C and 30,000 cc OTR packaging film at 24 °C. On the last day of storage, the off-odor, such as the acetaldehyde and ethanol concentration, was the lowest in the 10,000 cc OTR film at 8 °C and 30,000 cc OTR film at 24 °C treatments. The 10,000 cc OTR film treatment at 8 °C and 30,000 cc OTR film treatments at 24 °C had the highest chlorophyll content, total phenolic content, leaf toughness, antioxidant activity, vitamin C, and less off-flavor. The shelf life of 10,000 cc OTR film was 13 days, at 8 °C storage temperature. At 24 °C storage temperature, the shelf life of 30,000 cc OTR film was 4 days. The MAP storage of the Ligularia treated with 10,000 cc OTR film at 8 °C and 30,000 cc OTR film at 24 °C had the highest essential oil content. These results suggest that the best MAP film for cold-chain distribution was the 10,000 cc OTR film, and the 30,000 cc OTR film was a more suitable MAP film for local distribution without the cold-chain system of L. fischeri.

Keywords: Antioxidant; Chlorophyll; Visual quality; Vitamin C.

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Figures

Fig. 1
Fig. 1
Changes of oxygen concentration (a, b), carbon dioxide concentration (c, d), and ethylene concentration (e, f) of Ligularia fischeri at 8 °C and at 24 °C. Vertical bars represent ±SE of means (n = 5). *, **, *** Significant at p ≤ 0.05, 0.01 and 0.001, respectively of Duncan’s multiple range tests (DMRT)
Fig. 2
Fig. 2
Changes of fresh weight loss (a–d) of Ligularia fischeri at 8 °C and at 24 °C. Vertical bars represent ±SE of means (n = 5). As OTR films graphs line are not clearly visible with combined perforated film (a, c) so b, d produce separately only for OTR films. **, *** Significant at p ≤ 0.01 and 0.001, respectively of Duncan’s multiple range tests (DMRT)
Fig. 3
Fig. 3
Changes of visual quality (a, b) of Ligularia fischeri at 8 °C and at 24 °C.Visual quality scores were 5 excellent, 4 very good, 3 good, marketable, 2 bad, 1 waste. Vertical bars represent ±SE of means (n = 5). *** Significant at p ≤ 0.001 of Duncan’s multiple range tests (DMRT)
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