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육태원,성지혜,한혜민,김영화,정헌상,이준수 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.5
The root of Platycodon grandiflorum is conventionally used as either foodstuff or a traditional medicine in Korea. The effects of different cooking methods on the phytochemical content and antioxidant capacity of P. grandiflorum root were evaluated. Compared with the raw roots of P. grandiflorum, the vitamin C content was significantly reduced in the samples subjected to all cooking treatments (p<0.05). The total polyphenol, total flavonoid, 2,2'-azino-bis(3-ethylbenzothiazoline-6- sulfonic acid) (ABTS) radical scavenging activity, and reducing power of the root extract were significantly decreased (p<0.05) after blanching and boiling treatments. On the other hand, steaming treatment preserved or increased the content of all phytochemicals and the antioxidant activities evaluated herein, with the exception of the vitamin C content and reducing power. The overall results of this study suggest that steaming was the method of choice for retaining the optimum benefits of the phytochemicals and antioxidant activity of P. grandiflorum root.
유승철,성윤택,변혜민,상윤모,Diana Piscarac 한국인터넷방송통신학회 2023 International journal of advanced smart convergenc Vol.12 No.1
With the OTT media market growing rapidly, the significance of trustworthy data verification and certification cannot be emphasized enough. This study delves into the crucial need for such measures in South Korea, exploring the steps involved, the technological and policy-related considerations, and the challenges that may arise once these measures are put into place. Drawing on in-depth interviews and the analytical hierarchy process (AHP), this study surveyed various stakeholder groups, both directly and indirectly related to OTT data authentication and certification. By assessing the severity of OTT data-related issues and identifying the requirements for reliability-improvement policies, participants shared their valuable insights and opinions on this pressing matter. The survey results clearly indicate a divided opinion among stakeholders and industry experts on the reliability of OTT data, with some expressing trust while others remain skeptical. However, there was a consensus that advertising-based AVOD is more reliable than SVOD. By analyzing the priorities of authentication and verification, this study paves the way for the establishment and operation of a Korean MRC (KMRC), centered on the OTT media industry. The KMRC will serve as a vital platform for ensuring the authenticity and accuracy of OTT data in South Korea, providing businesses and industry players with a reliable source of information for informed decision-making. This study highlights the pressing need for reliable data authentication and certification in the rapidly growing OTT media market, and provides a persuasive case for the establishment of a KMRC in South Korea to meet this critical need.