Iordache Andreea Maria, Nechita Constantin, Podea Paula, Șuvar Niculina Sonia, Mesaroṣ Cornelia, Voica Cezara, Bleiziffer Ramona, Culea Monica
National Research and Development Institute for Cryogenics and Isotopic Technologies, 4 Uzinei Str., 240050 Râmnicu Vâlcea, Romania.
National Research and Development Institute for Forestry "Marin Dracea" Calea Bucovinei, 73 Bis, 725100 Campulung Moldovenesc, Romania.
Plants (Basel). 2023 May 31;12(11):2183. doi: 10.3390/plants12112183.
In addition to the naturopathic medicines based on the antiseptic, anti-inflammatory, anticancer, or antioxidant properties of plant extracts that have been capitalized upon through the pharmaceutical industry, the increasing interest of the food industry in this area requires potent new materials capable of supporting this market. This study aimed to evaluate the in vitro amino acid contents and antioxidant activities of ethanolic extracts from sixteen plants. Our results show high accumulated amino acid contents, mainly of proline, glutamic, and aspartic acid. The most consistent values of essential amino acids were isolated from , , , , and . The results of the 2,2-diphenyl-1-pycrylhydrazyl (DPPH) radical scavenging assay indicate that was the most potent antioxidant, followed by four other extracts (in decreasing order): , , . , and . The network and principal component analyses found four natural groupings between samples based on DPPH free radical scavenging activity content. Each plant extracts' antioxidant action was discussed based on similar results found in the literature, and a lower capacity was observed for most species. An overall ranking of the analyzed plant species can be accomplished due to the range of experimental methods. The literature review revealed that these natural antioxidants represent the best side-effect-free alternatives to synthetic additives, especially in the food processing industry.
除了基于植物提取物的防腐、抗炎、抗癌或抗氧化特性的自然疗法药物，这些特性已被制药行业所利用外，食品行业对该领域的兴趣日益浓厚，这就需要有强大的新材料来支持这个市场。本研究旨在评估16种植物乙醇提取物的体外氨基酸含量和抗氧化活性。我们的结果显示氨基酸含量积累较高，主要是脯氨酸、谷氨酸和天冬氨酸。必需氨基酸最稳定的值是从……中分离出来的。2,2-二苯基-1-苦基肼基（DPPH）自由基清除试验结果表明……是最有效的抗氧化剂，其次是其他四种提取物（按降序排列）：……。网络分析和主成分分析基于DPPH自由基清除活性含量在样本之间发现了四个自然分组。根据文献中发现的类似结果讨论了每种植物提取物的抗氧化作用，并且观察到大多数物种的能力较低。由于实验方法的范围，可以对所分析的植物物种进行总体排名。文献综述表明，这些天然抗氧化剂是合成添加剂的最佳无副作用替代品，尤其是在食品加工业中。
