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<p>The quality and shelf-life of blue swimming crab (<i>Portunus pelagicus</i>) roes were investigated during refrigerated storage of 24&#xa0;days. The roes were treated with high-pressure processing (HPP; 500&#xa0;MPa for 5&#xa0;min) and the chitooligosaccharide-catechin conjugate (COSC conjugate; 100 and 200&#xa0;ppm), individually or in combination. The use of HPP combined with COSC conjugate at 200&#xa0;ppm (HPP-COSC200) inhibited the growth of <i>Pseudomonas</i> and <i>Vibrio</i> spp. during storage, in which aerobic plate counts were below the rejection criterion (5 log CFU/g) for up to 24&#xa0;days. On day 24, HPP-COSC200 had lower TVB-N (9.66&#xa0;mg N/100&#xa0;g), TMA-N (1.99&#xa0;mg N/100&#xa0;g) contents, PV (6.16&#xa0;mg cumene hydroperoxide equivalent/kg), and TBARS (1.61&#xa0;mg MDA/kg) than the control and other treatments. According to metagenomic analysis, HPP-COSC200 shifted the microbial community by favoring less harmful species and reducing food spoilage bacteria like <i>Shewanella</i>. Moreover, it maintained sensorial acceptability for up to 24&#xa0;days. Polyunsaturated fatty acids (PUFAs), such as DHA, were retained (12.03&#xa0;g/100&#xa0;g lipid) after the storage. Therefore, oxidative deterioration and microbiological spoilage of roes could be retarded effectively when treated with HPP along with COSC conjugate at 200&#xa0;ppm.</p>

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Dual-Action Preservation of Crab Roe Using High-Pressure Processing and Chitooligosaccharide–Catechin Conjugate

  • 期刊论文

  • 发表日期：

    2026年5月18日

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  • Khaettareeya Pimsannil,
  • Suriya Palamae,
  • Matsapume Detcharoen,
  • Jirakrit Saetang,
  • Toa Yin,
  • Bin Zhang,
  • Soottawat Benjakul

摘要

The quality and shelf-life of blue swimming crab (Portunus pelagicus) roes were investigated during refrigerated storage of 24 days. The roes were treated with high-pressure processing (HPP; 500 MPa for 5 min) and the chitooligosaccharide-catechin conjugate (COSC conjugate; 100 and 200 ppm), individually or in combination. The use of HPP combined with COSC conjugate at 200 ppm (HPP-COSC200) inhibited the growth of Pseudomonas and Vibrio spp. during storage, in which aerobic plate counts were below the rejection criterion (5 log CFU/g) for up to 24 days. On day 24, HPP-COSC200 had lower TVB-N (9.66 mg N/100 g), TMA-N (1.99 mg N/100 g) contents, PV (6.16 mg cumene hydroperoxide equivalent/kg), and TBARS (1.61 mg MDA/kg) than the control and other treatments. According to metagenomic analysis, HPP-COSC200 shifted the microbial community by favoring less harmful species and reducing food spoilage bacteria like Shewanella. Moreover, it maintained sensorial acceptability for up to 24 days. Polyunsaturated fatty acids (PUFAs), such as DHA, were retained (12.03 g/100 g lipid) after the storage. Therefore, oxidative deterioration and microbiological spoilage of roes could be retarded effectively when treated with HPP along with COSC conjugate at 200 ppm.