不同功率三频正交超声辅助冻结处理对大黄鱼品质影响  

Effects of different power triple-frequency orthogonal ultrasound-assisted freezing treatments on the quality of large yellow croaker(Larimichthys crocea)

作　　者：杨为昊 梅俊 谢晶[1,2,3,4] YANG Weihao;MEI Jun;XIE Jing(College of Food Sciences and Technology,Shanghai Ocean University,Shanghai 201306,China;Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation,Shanghai 201306,China;National Experimental Teaching Demonstration Center for Food Science and Engineering(Shanghai Ocean University),Shanghai 201306,China;Shanghai Engineering Research Center of Aquatic Product Processing&Preservation,Shanghai 201306,China)

机构地区：[1]上海海洋大学食品学院,上海201306 [2]上海冷链装备性能与节能评价专业技术服务平台,上海201306 [3]食品科学与工程国家级实验教学示范中心(上海海洋大学),上海201306 [4]上海水产品加工及贮藏工程技术研究中心,上海201306

出　　处：《上海海洋大学学报》2025年第1期201-211,共11页Journal of Shanghai Ocean University

基　　金：国家重点研发计划(2023YFD2401402);国家农业产业技术体系(CARS-47)。

摘　　要：超声辅助冷冻(Ultrasound-assisted freezing, UAF)技术常用于大黄鱼(Larimichthys crocea)的冷冻保存,为了提高冷冻大黄鱼的品质,本研究在UAF的基础上,引入正交模式,研制出一种新型三频正交超声辅助冷冻(Triple-frequency orthogonal ultrasound-assisted freezing, TOUAF)技术。为探究不同功率TOUAF对冷冻大黄鱼品质的影响,将大黄鱼经过不同功率(160 W、175 W、190 W、205 W)TOUAF处理后测定解冻损失、持水力、低场核磁共振(LF-NMR)和核磁共振成像(MRI)、色差、质构特性、TBA、蛋白质溶解度以及表面疏水性。结果显示,TOUAF-175能显著提高持水力(79.450%±1.571%),减少解冻损失(2.343%±0.044%)和水分迁移。TOUAF-175较低的TBA值[(0.108±0.014)mg MDA/kg]表明有效抑制了脂质氧化。同时TOUAF-175在色差、质构特性以及提高蛋白质溶解度、降低表面疏水性方面具有优于其他功率组的效果。而功率更大的处理组由于大功率超声产生的潜热释放以及对冷冻样品造成的机械损伤,导致其样品的品质反而有所降低。研究表明,适当功率的TOUAF可以有效降低冷冻对鱼肉组织的损伤,提高冷冻大黄鱼的品质。TOUAF-175是促进大黄鱼冷冻过程、提高冷冻大黄鱼品质的有效方法。Ultrasound-assisted freezing(UAF)technology is commonly used in the freezing preservation of large yellow croaker(Larimichthys crocea).In order to improve the quality of frozen large yellow croaker,this study introduced orthogonal mode on the basis of UAF.A novel technique of Triplefrequency orthogonal ultrasound assisted freezing(TOUAF)was developed.In order to explore the effects of different power TOUAF on the quality of frozen large yellow croaker,the thawing loss,water retention,low field nuclear magnetic resonance(LF-NMR)and magnetic resonance imaging(MRI),chromatic difference,texture properties,TBA,protein solubility and surface hydrophobicity were measured after TOUAF treatment with different powers(160 W,175 W,190 W,205 W).The results showed that TOUAF-175 could significantly increase water retention(79.450%±1.571%),reduce thawing loss(2.343%±0.044%)and water migration.The low TBA value of TOUAF-175[(0.108±0.014)mg MDA/kg]indicated that TOUAF-175 effectively inhibited lipid oxidation.At the same time,TOUAF-175 has better effects than other power groups in terms of color difference,texture properties,improving protein solubility and reducing surface hydrophobicity.However,the quality of the frozen samples in the treatment group with higher power decreased due to the release of latent heat and mechanical damage to the frozen samples.The study showed that proper power of TOUAF could effectively reduce the damage of frozen fish tissue and improve the quality of frozen large yellow croaker.TOUAF-175 is an effective method to promote the freezing process and improve the quality of frozen large yellow croaker.

关 键 词：大黄鱼 超声辅助冷冻 三频正交超声 功率 品质 

分 类 号：TS254.4[轻工技术与工程—水产品加工及贮藏工程]