Templonuevo Rea Mae, Lee Kang-Hee, Oh Seung-Min, Zhao Yue, Chun Jiyeon
Department of Food Science and Technology, Sunchon National University, Suncheon 57922, Jeonnam, Republic of Korea.
College of Fisheries, Central Luzon State University, Science City of Muñoz 3120, Nueva Ecija, Philippines.
Foods. 2024 Nov 26;13(23):3815. doi: 10.3390/foods13233815.
Sea mustard () is a brown macroalga extensively cultivated and consumed in South Korea. However, the high volume of seaweed production in the country results in substantial waste generation. To mitigate this issue, the bioactive compounds of sea mustard waste parts (sporophyll, root, and stem) were assessed under different drying conditions (freeze, oven, and microwave drying) to evaluate their potential as functional ingredients. The sporophyll contained the highest levels of total chlorophyll (540.38 μg/g), fucoxanthin (165.87 μg/g), flavonoids (5.47 μg QE/g), phytomenadione (332.59 μg/100 g), and cobalamin (5.92 μg/100 g). In contrast, the root exhibited the highest antioxidant activities (DPPH: 1582.37 μg GAE/g; ABTS: 0.93 mg AAE/g), total polyphenol (2718.81 μg GAE/g) and phlorotannin (4298.22 μg PGE/g) contents. Freeze drying achieved the best retention rates for most bioactive compounds, except for fucoxanthin, which was highest in microwave-dried samples. These results demonstrate the potential of sea mustard waste as a valuable source of bioactive compounds, with the retention of these compounds being influenced by drying methods, depending on the specific part of the seaweed.
裙带菜是一种褐藻，在韩国被广泛种植和食用。然而，该国大量的海藻生产导致了大量废弃物的产生。为了缓解这一问题，对裙带菜废弃部分（孢子叶、根和茎）在不同干燥条件（冷冻、烘箱和微波干燥）下的生物活性化合物进行了评估，以评估它们作为功能成分的潜力。孢子叶中总叶绿素（540.38μg/g）、岩藻黄质（165.87μg/g）、类黄酮（5.47μg QE/g）、植物甲萘醌（332.59μg/100g）和钴胺素（5.92μg/100g）的含量最高。相比之下，根的抗氧化活性最高（DPPH：1582.37μg GAE/g；ABTS：0.93mg AAE/g），总多酚（2718.81μg GAE/g）和褐藻多酚（4298.22μg PGE/g）含量最高。除了岩藻黄质在微波干燥样品中含量最高外，冷冻干燥对大多数生物活性化合物的保留率最佳。这些结果表明，裙带菜废弃物作为生物活性化合物的宝贵来源具有潜力，这些化合物的保留受干燥方法的影响，具体取决于海藻的特定部位。
