Variations of Saponarin Content in Young Barley Leaves Illuminated with Different Light-Emitting Diodes (LEDs)
- PDF / 227,669 Bytes
- 6 Pages / 612 x 811 pts Page_size
- 24 Downloads / 155 Views
J. Crop Sci. Biotech. 2019 (December) 22 (4) : 317 ~ 322 DOI No. 10.1007/s12892-019-0099-0 RESEARCH ARTICLE
Variations of Saponarin Content in Young Barley Leaves Illuminated with Different Light-Emitting Diodes (LEDs) Nam-Jin Chung1,2, Jun-Young Kim3, Yuna Lee3, So-Hee Shin5, Jeong-Sup Song3, Sung Chul Shin6, Beom-Tae Kim2,3,4* 1
Department of Crop Science and Biotechnology, College of Agriculture and Life Science, Chonbuk National University, Jeonju, 54896, Republic of Korea 2 Research Center of Bioactive Materials, College of Natural Science, Chonbuk National University, Jeonju, 54896, Republic of Korea 3 Department of Bioactive Material Sciences, College of Natural Science, Chonbuk National University, Jeonju, 54896, Republic of Korea 4 Institute of Innovational Education Development, Chonbuk National University, Jeonju, 54896, Republic of Korea 5 Jeollabuk-Do Agricultural Research & Extension Services, Iksan, Republic of Korea 6 Department of Chemistry, Gyeongsang National University, Jinju, 660-701, Republic of Korea Received: March 26, 2019 / Revised: May 23, 2019 / Accepted: June 19, 2019 Ⓒ Korean Society of Crop Science and Springer 2019
Abstract In this study, the effect of light on the regulation of flavonoid production in young barley leaves (YBLs) was investigated. YBLs following germination were illuminated with different light-emitting diode (LED) lights, i.e. blue, red, far-red light, along with fluorescence and dark conditions as controls, and as the main flavonoid, saponarin content of YBLs was analyzed quantitatively with HPLC. In addition, the antioxidant activities of the crude ethanoic extracts of YBLs were analyzed by several antioxidant assays. The content of saponarin in blue light-illuminated barley leaves is two or three times higher than those in barley leaves with other lighting conditions, i.e. red, far-red, and the content with fluorescence and even dark conditions as controls. However, the levels of saponarin among the leaves illuminated with other lighting systems show no significant difference. And, the antioxidant potentials of the extracts of YBLs demonstrated same tendency shown in saponarin levels. Our results suggested that blue lighting conditions might evoke the photoprotection changes in YBLs, leading elevated level of saponarin, consequently increasing their antioxidant potentials. Key words : Young barley leaves, LEDs, saponarin, sprout, blue light
Introduction In recent years, the demand for the safe and healthy food with high quality has continuously increased in the food market (Samuolienė et al. 2012). One of the major factors in determining the quality of health functional food is the occurrence of bioactive phytochemicals and their richness as well which are known to keep or improve good healthy conditions of human. Among various environmental factors, light is one of the most critical elements affecting the phytochemical concentrations in plants (Idris et al. 2018; McClure and Wilson 1970). It has also been well demonstrated that the differences in the spectral
Data Loading...
