National R & D Branch Center for Conventional Freshwater Fish Processing (Tianjin), College of Food Science and Bioengineering, Tianjin Agricultural University, Tianjin 300392, China.
Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs of the People's Republic of China, National Research and Development Center for Aquatic Product Processing, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China.
Molecules. 2024 Sep 20;29(18):4466. doi: 10.3390/molecules29184466.
High-pressure processing (HPP) technology can significantly improve the texture and flavor of . This study aimed to investigate the effect of HPP treatment with varying levels of pressure (100, 200, 300, 400, 500, and 600 MPa) and a holding time of 8 min at 20 °C on the physicochemical properties and volatile flavors of . The significant changes in hardness, resilience, and water holding capacity occurred with increasing pressure ( < 0.05), resulting in improved meat quality. Scanning electron microscopy (SEM) was utilized to observe the decomposition of muscle fibers in due to varying pressures, which explains the differences in texture of . Different pressure treatments also had an influence on the volatile flavor of , and the quantities of low-molecular-weight aldehydes (hexanal, heptanal, and nonanal) with a fishy taste decreased dramatically following 400 and 500 MPa HPP treatments. Furthermore, the level of 2-Methylbutyraldehyde, which is related to sweetness, increased significantly following 400 MPa HPP treatment. The study found that 400 MPa HPP treatment resulted in minor nutrient losses and enhanced sensory quality. The results of this study provide a theoretical basis for the application of HPP treatment to .
高压处理(HPP)技术可以显著改善 的质地和风味。本研究旨在探讨不同压力水平(100、200、300、400、500 和 600 MPa)和 20°C 下 8 分钟保持时间的 HPP 处理对 的理化性质和挥发性风味的影响。随着压力的增加( < 0.05),硬度、弹性和持水能力显著变化,导致肉质改善。扫描电子显微镜(SEM)用于观察由于压力变化导致 的肌肉纤维分解,这解释了 的质地差异。不同的压力处理对 的挥发性风味也有影响,具有鱼腥味的低分子量醛(己醛、庚醛和壬醛)的数量在 400 和 500 MPa HPP 处理后急剧下降。此外,与甜味相关的 2-甲基丁醛水平在 400 MPa HPP 处理后显著增加。研究发现,400 MPa HPP 处理导致营养物质损失较小,感官质量得到提高。本研究结果为 HPP 处理在 的应用提供了理论依据。