| Home | E-Submission | Sitemap | Contact us |  
Asian J Beauty Cosmetol > Accepted Articles

doi: https://doi.org/10.20402/ajbc.2019.0285    [Accepted]
Quality Evaluation and Antioxidant Activity of Inner Beauty Tea Prepared from Roasted Lotus Root and Burdock
Yen-Hee Jung1, Han Jung Soon2 , Ae-Jung Kim1
1Department of Nutrition Therapy, Graduate School of Alternative Medicine Kyonggi University, Seoul, Korea
2Institute of Life Science, Korea University, Seoul, Korea, Seoul, Korea
Corresponding author:  Ae-Jung Kim ,Tel: +82 2 390-5044, Fax: +82 2 390-5078, Email: aj5249@naver.com
Received: April 8, 2019;  Accepted: June 4, 2019.  Published online: June 26, 2019.
Twelve root vegetables are commonly domestically consumed in Korea. This study aimed to develop an inner beauty tea with the highest antioxidant activity prepared from the root vegetables.
The antioxidant activities of these root vegetables and the corresponding teas prepared from them calculated by measuring the total polyphenol content and the radical scavenging activities of 1,1-diphenyl-2-picrylhydrazyl (DPPH). The color, mechanical properties, textural characteristics, mineral content, and physiological activity of the teas were also measured.
The total polyphenol content of the 12 root vegetables was highest in burdock (72.09 mg tannic acid equivalent [TAE]/g) and lotus root (8.86 mg TAE/g). DPPH radical scavenging activity was also higher in burdock (90.21%), and lotus root (87.83%). The total polyphenol content and DPPH radical scavenging activity of roasted burdock (RB) extract tea was 99.86 mg TAE/g, and 89.11 μg/mL, respectively, with the highest values obtained at 90℃ extraction temperature. The pH (6.24) of roasted lotus root (RL) extract tea was the highest at 70℃. The lightness (63.08) of RL root extract tea was the highest at 50℃. The redness (2.34) of RB extract tea was highest at 90℃, while its yellowness (31.03) was highest at 70℃. These results suggest that roasting and leaching at high temperatures are efficient methods to increase antioxidant activity.
The excellent antioxidant activities of lotus root and burdock make tem useful ingredients for inner beauty teas.
Key words: Lotus root, Burdock, Roast, Inner beauty tea, Antioxidant activity
Editorial Office
No.306, 244 Beotkkot-ro, Geumcheon-gu, Seoul 08513, Republic of Korea
TEL: +82-70-7707-4346   FAX: +82-502-770-2278   E-mail: ajbc.edit@gmail.com
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © Korea Institute of Dermatological Sciences. All rights reserved.