Purpose

The aim of the study was to analyse the quality changes in marinated herring meat depending on the moment of adding milk thistle.

Design/methodology/approach

One control (C) and two experimental groups were investigated: MH (milk thistle added to a marinade solution) and FH (fillets rubbed with milk thistle before marination). The basic chemical composition, the meat colour, heavy metals concentration, fatty acids profile, quality of lipids and antioxidant capacity were determined.

Findings

The occurrence of Fe, Mn, Cu and Zn was higher in the experimental group than in the control group throughout the marinating process. The peroxide value was higher from the first day in the control group than in the experimental groups. On the last day of the study, the peroxide value in the control group exceeded the maximum acceptable value. The highest level of Thiobarbituric Acid Reactive Substances was determined in the control group on the first day, and the lowest in the FH group. On the first day, the highest percentage of DPPH (2,2-Diphenyl-1-picrylhydrazyl) radical quenching was recorded in the FH group.

Originality/value

The results are the first to find that the addition of milk thistle to herring fillets in marinating process maintains or even improves the quality of the marinades. The process of previously coating the fillets in milk thistle and then marinating achieves a lower peroxide value, higher content of polyunsaturated fatty acids and a higher content of elements such as iron and manganese, which are very valuable for human health.

中文翻译：

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“添加牛奶蓟（水飞蓟）对腌制鲱鱼（Clupea Harengus L.）肉的影响”

目的

该研究的目的是分析腌鲱鱼肉的质量变化，具体取决于添加牛奶蓟的时间。

设计/方法/方法

研究了一个对照组（C）和两个实验组：MH（将牛奶蓟添加到腌料溶液中）和FH（鱼片在腌制前用牛奶蓟摩擦）。测定了基本化学组成，肉色，重金属浓度，脂肪酸谱，脂质质量和抗氧化能力。

发现

在整个腌制过程中，实验组中铁，锰，铜和锌的发生率高于对照组。对照组第一天的过氧化物值高于实验组。在研究的最后一天，对照组中的过氧化物值超过了最大可接受值。第一天在对照组中确定了最高的硫代巴比妥酸反应性物质水平，而在FH组中则确定了最低水平。在第一天，在FH组中记录到最高的DPPH（2,2-二苯基-1-吡啶基肼基）自由基猝灭百分比。

创意/价值

结果是第一个发现在腌制过程中在鲱鱼片中添加牛奶蓟可以保持甚至改善腌料质量的方法。预先在奶蓟中涂上鱼片然后腌制的过程实现了较低的过氧化物值，较高的多不饱和脂肪酸含量和较高的元素含量（如铁和锰），这对人体健康非常重要。