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Nutritional quality variation in dried Pacific Oyster (Crassostrea gigas) using hybrid-pump dryer under different heating treatment


This study explored the potential of using hybrid pump dryer (HPD) to utilize overproduction in aquaculture of oysters, especially during winter. HPD-dried oysters maybe used as amendments for kimchi, a traditional Korean side dish, for possible nutrient source and flavor enhancer. Oysters were subjected to different heating treatments and evaluated for proximate composition, quality characteristics, and antioxidant activities. Lower lipid and higher glycogen content were observed in HPD-dried oysters processed than the samples dried with hot air (HAD). HPD-dried oysters also exhibited lesser browning activity, better surface color, and higher antioxidant activities. Ash, protein, and water activity were slightly affected by heating treatment. VBN and TBARS were found to be higher in HAD-dried oysters, indicating faster spoilage. Applying heat pattern in drying resulted to improved quality characteristics and antioxidant activities and slower degradation of dried oyster products compared to their single-temperature-drying counterparts, especially those dried at high temperatures.

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This research was financially supported by projects of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [Grant No. 10067058].

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Correspondence to Byeong-Dae Choi.

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Neri, T.A.N., Jung, HC., Jang, SK. et al. Nutritional quality variation in dried Pacific Oyster (Crassostrea gigas) using hybrid-pump dryer under different heating treatment. Food Sci Biotechnol 30, 643–652 (2021).

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  • Hybrid pump drying
  • Dried oyster
  • Crassostrea gigas
  • Heat pattern
  • Antioxidant activity
  • Biochemical composition