Drygaś Barbara, Piechowiak Tomasz, Kreczko Joanna, Matłok Natalia, Saletnik Bogdan, Balawejder Maciej
Department of Bioenergetics, Food Analysis and Microbiology, University of Rzeszow, 35-601 Rzeszow, Poland.
Department of Chemistry and Food Toxicology, University of Rzeszow, 35-601 Rzeszow, Poland.
Plants (Basel). 2024 Oct 14;13(20):2871. doi: 10.3390/plants13202871.
Algae extracts may be a promising alternative to harmful chemicals and pesticides used commercially in the cultivation of plants with higher nutritional and health-promoting values. The cultivation of barley microgreens ( L.) was facilitated by the use of aqueous extracts from algae, which served as a biostimulant. Seeds for experiments were produced in accordance with EU standards, certified as organic and used to grow plants in a controlled pot experiment. A qualitative analysis of the extract, which was used to irrigate the plants, was also performed in this study, as well as stimulating properties by activating the system protecting against oxidative stress. Total phenolic content (TPC), total flavonoid content (TFV) and enzymes involved in their formation such as phenylalanine ammonia lyase (PAL) and polyphenol oxidase (PPO), as well as enzymes involved in the removal of reactive oxygen species such as catalase (CAT) and superoxide dismutase (SOD), were determined in the obtained microgreen samples. Antioxidant activity against DPPH (2,2-diphenyl-1-picrylhydrazyl) was also evaluated. A noticeable increase in SOD content and antioxidant activity against DPPH was observed in barley microgreen samples after extract treatment. These results suggest that the use of extracts of this beneficial alga can enhance the antioxidant activity of the barley microgreens.
藻类提取物可能是商业种植具有更高营养价值和促进健康价值植物时使用的有害化学物质和杀虫剂的一种有前景的替代品。使用藻类水提取物促进了大麦嫩苗（L.）的种植，该提取物用作生物刺激剂。实验用种子按照欧盟标准生产，经认证为有机种子，并用于在可控盆栽实验中种植植物。本研究还对用于灌溉植物的提取物进行了定性分析，并通过激活抗氧化应激保护系统来研究其刺激特性。在获得的嫩苗样品中测定了总酚含量（TPC）、总黄酮含量（TFV）以及参与其形成的酶，如苯丙氨酸解氨酶（PAL）和多酚氧化酶（PPO），以及参与清除活性氧的酶，如过氧化氢酶（CAT）和超氧化物歧化酶（SOD）。还评估了对DPPH（2,2 - 二苯基 - 1 - 苦基肼）的抗氧化活性。提取物处理后，在大麦嫩苗样品中观察到SOD含量和对DPPH的抗氧化活性显著增加。这些结果表明，使用这种有益藻类的提取物可以增强大麦嫩苗的抗氧化活性。
