최근 기능성 게임의 교육적인 활용에 대한 관심이 증가하면서, 게임의 교육적 효과성에 대한 많은 연구들이 이뤄지고 있다. 본 논문에서는 인지기능 향상을 위한 기능성 게임인 ‘바우바우 프렌즈’를 개발했다. 이 콘텐츠는 인지기능 중 집행기능(Executive function), 지속적 주의력 (Sustained attention), 분리적 주의력(Divided attention)을 다루고 있다. 본 연구에서 개발된 게임의 유용성을 증명하기 위해 EEG 실험을 수행했으며, 게임 전 뇌파와 게임 진행 중 뇌파를 측정하여 비교분석했다. 결과적으로 지속적 주의력 게임(Simon)과 분리적 주의력 게임(Cooking)이 인지기능 향상에 긍정적인 효과가 있는 것으로 나타났다. 보다 아동의 인지기능 향상이라는 명확한 검증을 위해서는 추후 아동을 대상으로 한 EEG 실험을 추가로 수행할 필요가 있다.

The aim of this study was to evaluate the effects of microencapsulation on the water absorption, DPPH radical scavenging activity (DRSA), hydroxyl radical scavenging activity (HRSA) and tyrosinase inhibition activity (TIA) in corn silk extracts. The lowest value (0.20) of water absorption index (WAI) and the highest value (95.23%) of water solubility index (WSI) were maltodextrin+cyclodextrin microencapulated corn silk extracts (MD+CD) and cyclodextrin encapulated corn silk extracts (CD), respectively. The 18.60% for DRSA value of control was increased to 89.25% for that of CD. The 16.89% for HRSA value of control was increased to 47.46%, and 7.16% for TIA value of control was increased to 39.35% for that of MD+CD, respectively. The MD+CD would be used for functional food and cosmetics materials as antioxidant and skin whitening agents. All investigated responses between control and treatment were statistically significant (p<0.05).

This study was designed to optimize ethanol extraction process of unfertilized corn silk (UCS) to maximize phytochemical contents and bioactivities. The response surface methodology (RSM) with central composite design (CCD) was employed to obtain the optimal extraction conditions. The influence of ethanol concentration, extraction temperature and extraction time on total polyphenol contents, total flavonoid contents, maysin contents, 2,2-diphenyl-1- picrylhydrazyl(DPPH) radical scavenging activities and tyrosinase inhibition were analyzed. For all dependable variables, the most significant factor was ethanol concentration followed by extraction temperature and extraction time. The following optimum conditions were determined by simultaneous optimization of several responses with the Derringer’s desirability function using the numerical optimization function of the Design-Expert program: ethanol concentration 80.45%, extraction temperature 53.49°C, and extraction time 4.95 h. Under these conditions, the predicted values of total polyphenol contents, total flavonoid contents, maysin contents, DPPH radical scavenging activity and tyrosinase inhibition were 2758.74 μg GAE/g dried sample, 1520.81 μg QUE/g dried sample, 810.26 mg/100g dried sample, 56.86% and 43.49%, respectively, and the overall desirability (D) was 0.74.

본 연구에서는 제련 공정에서 발생하는 희소금속을 함유한 폐산용액을 효율 적/경제적으로 회수하기 위해 부식 억제 특성을 가진 지방족 아민(Aliphatic Amine)를 첨가제로 사용하여 내산성이 향상된 복합 NF 분리막을 제조하고자 한다. 지방족 아민를 첨가한 내산성 NF 분리막은 다공성 지지막 위에 polyamide 계면중합법을 이용하여 제조하였고 제조한 내산성 NF 분리막은 15 wt% 황산에 노출한 후, 75psi 압력의 cross-flow 방식으로 내산성 투과실험을 진행한 결과를 flux와 rejection을 통해 확인하였다. 또한 XPS, FE-SEM, ATR-FTIR 등을 통해 제조된 막의 특성을 분석하였다.

본 연구에서는 분리막 공정의 가장 큰 단점인 파울링을 저감시키기 위해 상용 나노막 표면을 실란 화합물로 개질하여 내오염성 및 내염소성이 향상된 복 합막을 제조하고자 하였다. 각기 다른 말단 관능기를 포함한 실란 커플링제로 (3-Mercaptopropyl)trimethoxysilane (MPTES), Octyltrimethoxysilane (OcTES), (3-Aminopropyl)trimethoxysilane (APTMS)을 사용해 표면을 개질하였다. 실란을 표면에 그래프팅 시킨 결과 막 표면의 친수화 증가로 인한 개질막의 투과 수량 향상과 내오염성 및 내염소성에 미치는 영향을 확인할 수 있었다. 또한 AFM, XPS, FT-IR을 통해 제조된 막의 특성을 분석하였다.

Genetically modified (GM) papaya (Carica papaya L.) line 55-1 (55-1), which is resistant to papaya ringspot virus infection, has been marketed internationally. Many countries such as the European Union, Japan, and Korea have a mandatory safety assessment, approval and labeling regulations for GM foods. Thus, there is a need for specific methods for detecting 55-1. In this study, we established a real-time PCR detection method applicable to 55-1 for a variety of papaya products. The limit of detection was possible for fresh papaya fruit up to dilutions of 0.005% and 0.01% (weight per weight [w/w]) for homozygous SunUp and heterozygous Rainbow cultivars, respectively, in non-GM papaya. The 55-1 event-specific detection method observed parallelism (r2>0.99) between the concentration of line 55-1 cultivars and Ct values obtained in amplification plots at concentrations of 0.005-10% for SunUp DNA and 0.01-10% for Rainbow DNA. The method was applicable to the qualitative detection in various types of processed products (cocktail fruit, dried fruit, juice, etc.) containing papaya as a main ingredient. Monitoring papaya products for the presence of GM papaya were demonstrated using a P35S and T-nos real-time PCR detection method but no amplification signals were detected.