High-CO 2 Modified Atmosphere Packaging with Superchilling (−1.3 ° C) Inhibit Biochemical and Flavor Changes in Turbot ( Scophthalmus maximus ) during Storage

• Published in: Molecules
• Main Authors: Jun Mei, Feng Liu, Shiyuan Fang, Weiqing Lan, Jing Xie
• Format: Article in Journal/Newspaper
• Language: English
• Published: MDPI AG 2020
• Subjects: turbot; modified atmosphere packaging; superchilling; shelf life; quality; Organic chemistry; QD241-441; Scophthalmus maximus; Turbot
• Online Access: https://doi.org/10.3390/molecules25122826; https://doaj.org/article/43178a8d464c4340acaed12eab0eb734

The effects of modified atmosphere packaging (MAP) in combination with superchilling (−1.3 °C) on the physicochemical properties, flavor retention, and organoleptic evaluation of turbot samples were investigated during 27 days storage. Results showed that high-CO 2 packaging (70% or 60% CO 2 ) combined with superchilling could reduce the productions of off-flavor compounds, including total volatile basic nitrogen (TVB-N) and ATP-related compounds. Twenty-four volatile organic compounds were determined by gas chromatography–mass spectrometry (GC/MS) during storage, including eight alcohols, 11 aldehydes, and five ketones. The relative content of off-odor volatiles, such as 1-octen-3-ol, 1-penten-3-ol, (E)-2-octenal, octanal, and 2,3-octanedione, was also reduced by high-CO 2 packaging during superchilling storage. Further, 60% CO 2 /10% O 2 /30% N 2 with superchilling (−1.3 °C) could retard the water migration on the basis of the water holding capacity, low field NMR, and MRI results, and maintain the quality of turbot according to organoleptic evaluation results during storage