Plant Materials

The plants used in this study are grown at the garden of Woori flowers at Gwacheon City, Gyeonggi-Do, Republic of Korea (Latitude-37.335224°N, longitude 126.822052°E). Experimental research on plants complies with relevant institutional, national, and international guidelines and legislation. The stem of the Hibiscus plants used in the study was collected under the permission of the Research Institute of Woori Flowers. At the same time, Cinnamomum plants were collected under permission from the Korea Tropical Plant Research Center, Cheju Island, Republic of Korea. These plants were identical to a specimen deposited to the National Wild Plant bank, National Institute of Biological Resources, Ministry of Environment, Republic of Korea. These plant families and parts used are briefly outlined in Table 1.

Overview of plant extracts used in this study.