This study aimed to examine the possibility of upcycling extracts of Angelica keiskei and Oenanthe javanica juice by-products through comparing enzyme extraction (EE) and complex extraction (CE) methods to increase the extraction yield and flavor of materials. A higher extraction yield was obtained for free amino acid content with EE and CE for A. keiskei and O. javanica juice by-products, respectively, and a higher extraction efficiency was achieved with juice by-products than with extracts prepared from raw materials before juice production. The content of major amino acids varied depending on the extraction method used. When used according to the characteristics of the extract, their use as a functional material was confirmed along with improvement in the flavor of the food. Consistently high extraction yields for organic acid and sugar levels were obtained with CE in A. keiskei and O. javanica juice by-products. The DPPH radical scavenging ability and TPC were consistently high with CE in A. keiskei and O. javanica juice by-products; the increase in extracted content was likely because of the reaction between the ethanol used for CE and the phenolic compounds. However, because the antioxidant capacity of the juice by-product extracts was somewhat lower than that of the extracts from raw materials before juice production, the amount used should be reviewed. The TFC was found to be higher in extracts obtained with EE than with CE for A. keiskei juice by-products; however, no significant difference was observed between EE and CE in the O. javanica juice by-products. Through this study, the taste compounds and antioxidant properties of extracts obtained from juice by-products produced after the production of A. keiskei and O. javanica green juice were analyzed, and the availability of high value-added materials was confirmed. Based on these research results, expanding specific R&D for practical use should be explored.

본 연구는 서울·경기 소재 65세 이상 노인 463명을 대상으로 신체활동 참여에 따른 체력요 인과 인지기능, 일상생활수행능력, 도구적 일상생활수행능력 및 심리적 변인에 대한 차이를 분석하였다. 수집 된 자료는 SPSS 25.0 통계프로그램을 이용하여 빈도분석, 신뢰도 분석, 독립 t-검증과 일원분산분 석 그리고 피어슨의 상관관계분석을 실시하였으며 모든 통계적 유의수준은 p<.05로 설정하였다. 그 결과 첫째, 노인의 신체활동 참여유무에 따라 체력, 인지기능, 일상생활수행능력, 도구적일상생활수행능력 및 심리적 변인인 우울과 삶의 질에 통계적으로 유의한 차이가 나타났으며, 신체활동에 참여하는 노인의 참여빈도에 따라 체력, 인지기능, ADL, IADL, 우울 및 삶의 질에 통계적 유의한 차이가 나타났다. 신체활동에 참여하는 노인의 참여시간에 따라 체력에서 통계적 유의한 차이가 나타났다. 둘째, 체력과 인지기능, ADL, IADL, 우울 및 삶의 질의 상관관계를 살펴본 결과 대부분의 요인에서 상관관계가 나타났다. 이러한 연구결과를 바탕으로 노인의 성공적인 노화와 자립적인 노후생활을 위해 신체활동을 포함한 체계적인 중재 전략의 개발이 필요하다.