Effect of mild subcritical fluid treatment on meat quality of farmed large yellow croakers

IF 3.4 3区工程技术 Q2 CHEMISTRY, PHYSICAL

Journal of Supercritical Fluids Pub Date : 2024-08-05 DOI:10.1016/j.supflu.2024.106370

Wenjie Wang , Danqing Jiang , Xiubiao Chen , Xuxia Zhou , Yuting Ding

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Abstract

Farmed large yellow croaker fish have stronger fishy smell and less tender texture than wild-caught ones, mostly caused by the high fat accumulation from aquaculture feeding patterns. To improve the commercial value of fillets, this study investigated a mild subcritical fluid treatment with subcritical butane (SBE) and dimethyl ether (SDME). Changes in the chemical compositions, volatile flavor compounds (VFCs) and protein denaturation were determined for 1–5 h treatments. The results showed 24 % and 44 % defatting levels under SBE and SDME treatment, respectively. GC-MS showed that SDME could induce a significant reduction of total VFC content, especially for the dominant aldehydes. There was less n-nonanal (14.65–40.13 mg/kg) and octanal content (1.67–7.21 mg/kg), no detection of trans, trans-2,4-decadienal in the SDME treated samples in comparison to those treated with SBE. The results showed that SDME treatment for 3 h had the best defatting effect, good deodorization effect and less degradation of fish protein.

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温和亚临界流体处理对养殖大黄鱼肉质的影响

与野生捕捞的大黄鱼相比，养殖的大黄鱼腥味更重、肉质更不鲜嫩，这主要是由于水产养殖投喂模式造成的高脂肪积累所致。为了提高鱼片的商业价值，本研究采用亚临界丁烷（SBE）和二甲醚（SDME）进行了温和的亚临界流体处理。测定了处理 1-5 小时后化学成分、挥发性风味化合物（VFCs）和蛋白质变性的变化。结果显示，SBE 和 SDME 处理的脱脂程度分别为 24% 和 44%。气相色谱-质谱（GC-MS）显示，SDME 能显著降低 VFC 的总含量，尤其是主要的醛类。与使用 SBE 处理的样品相比，SDME 处理的样品中正壬醛（14.65-40.13 毫克/千克）和辛醛（1.67-7.21 毫克/千克）含量较少，没有检测到反式、反式-2,4-癸二烯醛。结果表明，SDME 处理 3 小时的脱脂效果最好，除臭效果好，鱼肉蛋白质降解较少。

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来源期刊

Journal of Supercritical Fluids 工程技术-工程：化工

CiteScore

7.60

自引率

10.30%

发文量

236

审稿时长

56 days

期刊介绍： The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics. Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.