Graduate Institute of Food Science and Technology, National Taiwan University, Taipei City, Taiwan.
Institute of Biotechnology, College of Bioresources and Agriculture, National Taiwan University, Taipei, Taiwan.
J Sci Food Agric. 2021 Dec;101(15):6463-6471. doi: 10.1002/jsfa.11317. Epub 2021 Jun 4.
Germination of mung beans increases the content of dietary fiber, vitamin C, antioxidants, and γ-aminobutyric acid (GABA). Atmospheric cold plasma is a recently developed technology that can rapidly modify the surface properties of an object. In this work, atmospheric cold plasma was utilized to promote higher moisture absorption of mung bean seeds and, thus, enhance the germination ratio and GABA level. The selected healthy seeds that were exposed to plasma generated at different ionizing powers.
According to the experimental results, atmospheric cold plasma treatments on mung bean seeds could induce significantly more water absorption and lead to a higher rate of germination. The physical appearance of the sprout developed after plasma treatment was noticeably modified to a more desirable form, which has a short radicle and longer hypocotyls with a larger diameter. The content of the bioactive component GABA in plasma-treated beans was approximately three times higher than the untreated group due to the response of seed to the environmental stress created by the plasma treatment.
The result from this work will serve as a good reference for future investigation that is searching for a solution to enhance bioactive compound production in natural products. © 2021 Society of Chemical Industry.
绿豆发芽会增加膳食纤维、维生素 C、抗氧化剂和γ-氨基丁酸（GABA）的含量。大气压冷等离子体是一种新兴的技术，可以快速改变物体的表面特性。在这项工作中，大气压冷等离子体被用于促进绿豆种子更高的吸水性，从而提高发芽率和 GABA 水平。选择经过等离子体处理的健康种子，其离子化功率不同。
根据实验结果，大气压冷等离子体处理绿豆种子可以诱导更多的水分吸收，从而提高发芽率。经过等离子体处理后，豆芽的物理外观明显变得更理想，根更短，下胚轴更长，直径更大。由于种子对等离子体处理产生的环境胁迫的反应，处理过的豆子中生物活性成分 GABA 的含量比未处理组高出约三倍。
这项工作的结果将为未来寻找提高天然产物中生物活性化合物产量的解决方案提供很好的参考。 © 2021 化学工业协会。
