Youngjoon Kim

Abstract Piper nigrum L. is a widely used spice because of its flavour and health effects. It is prepared as black and white pepper, according to the harvest time and inclusion of the outer skin. Pepper pericarp is usually considered waste when making white pepper. In this study, bioactive and flavour compounds and minerals in the pericarp of black pepper were determined to identify its applications. The pericarp contained total phenol, total flavonoid and piperine contents of 1421.95 ± 22.35 mg

정보통신기술의 발전과 스마트폰의 대중화로 인한 소비자들의 소비패턴 변화와 다양한 스포츠 컨텐츠에 대한 수요증가로 비교적 새로운 커머스인 스포츠 O2O서비스가 주목받고 있다. 이에 본 연구는 정보기술 수용과 이용행위의 이론적 유용성을 입증 받고 있는 기술 수용모델을 적용하여 스포츠 O2O서비스 잠재 고객의 이용의도와 관련 요인들 간의 영향관계를 구명하였다. 서울, 경기 지역 대학생 306명을 대상으로 설문조사를 실시하였으며 불성실한 설문을 제외한 총 301부가 최종 분석에 사용되었다. 자료처리를 위하여 PASW 18.0과 AMOS 18.0프로그램을 이용하였으며 빈도분석, 신뢰도분석, 확인적 요인분석, 그리고 구조방정식 모형 분석을 실시하여 다음과 같은 연구 결과를 도출하였다. 첫째, 건강 관심도는 지각된 유용성에 긍정적 영향을 미치는 것으로 나타났지만 지각된 용이성에는 유의미한 영향을 미치지 않는 것으로 나타났다. 둘째, 헬스리터러시는 지각된 용이성에 긍정적인 영향을 미치는 것으로 나

) across different stages of maturity and analyzed their physicochemical properties, antioxidant compositions, and activities. The selected aronia cultivars ('Viking', 'McKenzie', and 'Kingstar K1' were categorized based on maturity into the immature stage (red tip), intermediary stage (red), and mature stage (dark purple). The key sugar components of aronia fruits were fructose, glucose, and sorbitol, while the main organic acid was found to be malic acid. The antioxidant content and activity o

최근 피트니스 애플리케이션 시장에서 사용자들의 자발적 참여와 몰입 증가를 위하여 게임기법을 적용하는 게이미피케이션 전략이 주목받고 있다. 하지만 많은 기업들이 게임 작동원리에 대한 깊은 이해 없이 단순히 게이미피케이션 전략을 적용하는데 그치고 있어 충분한 효과를 기대하기 어려운 실정이다. 이에 본 연구는 피트니스 애플리케이션에 적용된 게이미피케이션 전략이 사용자의 몰입과 지속사용의도에 미치는 영향과 사용자의 몰입이 지속사용의도에 미치는 영향을 분석하고자 하였다. Nike+, Strava, Trangle, Runtastic 을 사용하는 성인을 대상으로 설문조사를 실시하였으며, 불성실한 응답을 제외한 총 200부의 자료가 최종분석에 사용되었다. PASW 23.0을 이용한 다중회귀분석 결과, 5개 요인으로 구성한 게이미피케이션 전략의 도전전략과 보상전략 그리고 접근전략은 사용자의 몰입과 지속사용의도 모두에 긍정적인 영향을 미치는 것으로 나타났으나, 경쟁전략과 관계전략은 유의한 영향을 미치

Five Korean blueberries (''Nelson'', ''Duke '', ''Bluejay '', ''Toro'', and ''Elliot '') were harvested at two maturity stages (unripe and ripe) to evaluate fruit quality and antioxidant activities. The Hunter L, a, and b color of ripe blueberries was lower than that of unripe fruit. Soluble solid concentration (SSC) and pH increased, and titratable acidity (TA) and firmness decreased as the blueberries matured. The ripe blueberry fruits showed a higher SSC/TA ratio than the unripe fruits. Altho

Although various physiological activities of compounds obtained from Paeonia lactiflora have been reported, the effects of P. lactiflora extract (PLE) on early atherosclerosis remain unclear. Therefore, in this study, we investigated the in vitro and in vivo antiatherosclerosis and in vitro antioxidant effects of PLE and its compounds. PLE suppresses the tumor necrosis factor (TNF)-α-induced capacity of THP-1 cells to adhere to human umbilical vein endothelial cells (HUVECs), vascular cell adhes

Sesame (Sesamum indicum L.) is a plant that belongs to the Pedaliaceae family which was first classified as a food source around 4000 years ago. Lignans (sesamin, sesamolin, sesamol, and sesaminol) present in sesame are the primary functional compounds that impart important health benefits. However, very little information is available on the lignan intake from sesame seeds and sesame oil products. Sesame oil is frequently and highly consumed in Korea and therefore is one of the important lignan

The pathogenesis of rheumatoid arthritis (RA) has been implicated neutrophil extracellular traps (NETs) formation which could generate autoantigen. Neutrophil contributes to initiate and maintain the inflammatory process in the joint. In this study, we show that 1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol (PLAG) decreases neutrophil migration by regulating the activity of STAT3, a regulator of IL-6 and MIP-2 expression. PLAG caused a decrease in IL-6 production in the RAW264.7 macrophage cell

INTRODUCTION: Turmeric has been widely used in curry powders as the main spice. Conventional chemical analysis such as high-performance liquid chromatography (HPLC) may take several hours to extract curcuminoids and prepare samples in many turmeric processing industries. OBJECTIVE: This study was conducted to evaluate curcuminoids in turmeric powder using near-infrared reflectance spectroscopy (NIRS). METHODS: All spectral acquisition ranged from 1100 to 2500 nm and a chemometrics analysis using

Onions are typically consumed as the bulb, but the peel and root are discarded as by-products during processing. This study investigated the potential functional use of these by-products by analyzing the polyphenols, antioxidant compounds, and antioxidant activity contained in onions. In this study, the bulb, peel, and root of five onion cultivars ('Tank', 'Bomul', 'Gujji' 'Cobra', and 'Hongbanjang') harvested in Korea were investigated. Caffeic acid and quercetin were most abundant in the peel,

This study analyzes the clinical characteristics of the brain metastasis (BM) of gynecologiccancer based on the type of cancer. In addition, the study examines the factors influencingthe survival. Total 61 BM patients of gynecologic cancer were analyzed retrospectivelyfrom January 2000 to December 2012 in terms of clinical and radiological characteristicsby using medical and radiological records from three university hospitals. There were 19(31.1%) uterine cancers, 32 (52.5%) ovarian cancers, an

Abstract Tomatoes, watermelons, and processed tomato products contain abundant antioxidant compounds, including lycopene. In spite of the interest in the role of lycopene, little is known about the contribution of tomatoes and tomato products commonly consumed in Korea to the intake of lycopene. In this study, the daily per capita intake values of lycopene and antioxidant compounds and activities of tomatoes, watermelons, and their processed products in Korea were estimated. The daily per capita