Effects of lychee pericarp polyphenols-egg white complex on gel properties and storage quality of shrimp surimi

  • CHEN Meihua ,
  • LI Jincheng ,
  • LUO Suwen ,
  • LIN Qingyan ,
  • LI Fujian ,
  • LAN Weibing ,
  • DONG Qingliang ,
  • NIU Gaigai ,
  • QIN Mei
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  • (Guangxi College and University Key Laboratory of High-value Utilization of Seafood and Prepared Food in Beibu Gulf, Guangxi Zhuang Autonomous Region Engineering Research Center of Marine Food Nutrition and Processing Technology Innovation, College of Food Engineering, Beibu Gulf University, Qinzhou 535011, China)

Received date: 2025-08-26

  Revised date: 2025-09-05

  Online published: 2026-06-03

Abstract

While low-salt unwashed shrimp surimi gel products align with healthy dietary and sustainable development trends, their application is limited by weakened gel properties and storage deterioration.To address this technical challenge, this study formulated lychee pericarp polyphenols (LPP) at 0.25%, 0.50%, 0.75%, and 1.00% with 10% egg white (EW) into a lychee pericarp polyphenols-egg white complex (LPP-EW), which was incorporated into unwashed shrimp surimi for gel preparation.These were compared against a blank group (EW only) and a positive control group (EW + 0.01% BHT (butylated hydroxytoluene) + 0.3% STPP (sodium tripolyphosphate)).Gel properties (yield, gel strength, cooking loss, texture profile, color and sensory quality) and storage quality indicators (color, pH, thiobarbituric acid value, total viable count, and total volatile base nitrogen value) were analyzed.The results indicated that LPP-EW with LPP addition ≤0.75% significantly improved the gel properties and storage stability of low-salt unwashed shrimp surimi, outperforming the positive control.The 0.50% LPP-EW group demonstrated optimal effects:compared to the positive control, its gel yield (97.61%), gel strength (1 396.00 g·cm), springiness (0.945), chewiness (1 716.50 g), and comprehensive sensory score (8.25) increased by 1.79%, 39.60%, 2.72%, 8.03%, and 13.09%, respectively, while cooking loss (4.94%) decreased by 38.63%.After 9 days of storage, its thiobarbituric acid value, total viable count, and total volatile base nitrogen value decreased by 14.24%, 5.18%, and 13.87%, respectively, with a total color difference (ΔE) of 1.48 relative to day 0 (below the visual perception threshold).This study provides an innovative strategy for developing aquatic surimi products with superior gel properties, extended storage stability, and clean-label attributes, while enabling value-added utilization of lychee pericarp.

Cite this article

CHEN Meihua , LI Jincheng , LUO Suwen , LIN Qingyan , LI Fujian , LAN Weibing , DONG Qingliang , NIU Gaigai , QIN Mei . Effects of lychee pericarp polyphenols-egg white complex on gel properties and storage quality of shrimp surimi[J]. Food and Fermentation Industries, 2026 , 52(9) : 256 -265 . DOI: 10.13995/j.cnki.11-1802/ts.044186

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