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Transglutaminase 처리 쌀가루를 이용한 수리취 첨가 냉동 송편의 품질특성
장세원(Sewon Jang),서동호(Dong-Ho Seo),금준석(Jun-Seok Kum),박종대(Jong-Dae Park),최현욱(Hyun Wook Choi),성정민(Jung-Min Sung),최윤상(Yun-Sang Choi),이병호(Byung-Hoo Lee) 한국식품과학회 2018 한국식품과학회지 Vol.50 No.5
수리취의 첨가량을 10, 15, 20%로 하여 냉동 수리취 송편을 제조한 다음 해동후 색도, 기계적 품질특성, 관능적 품질특성 평가를 실시한 결과는 다음과 같다. 수리취를 첨가한 송편의 색도는 수리취 함량이 증가함에 따라 L값은 감소하였고, a값은 음(−)의 값을 나타냈으며 b값은 대조군보다 높은 값으로 첨가량이 증가할수록 증가하는 경향으로 나타났다. 수리취 첨가 냉동 송편의 해동 후 기계적 텍스처 측정 결과 수리취 첨가량에 따라 경도(hardness), 점착성(gumminess), 씹힘성(chewiness)이 유의적으로 증가하고, 응집성(cohesiveness)은 감소하였으며, 탄력성(springiness)은 수리취 비첨가구와 유의적 차이는 나타나지 않았다. 색과 향의 강도는 수리취의 함량이 증가할수록 높은 점수로 평가되었다. 졸깃함, 향, 맛, 텍스처의 기호도는 15% 첨가구가 5.33-6.50점으로 가장 높은 기호도를 나타내었다. 전체적인 기호도는 수리취20% 첨가구가 가장 낮게 나타났으며, 그 외 실험군은 유의적 차이가 나타나지 않았다. 냉동 수리취 송편의 조직감 향상을 위하여 TGase 처리한 쌀을 이용하여 수리취 송편을 제조하였다. TGase 처리한 쌀을 이용하여 제조한 냉동 수리취 송편의 해동 후 기계적 텍스처 측정에서 비처리구보다 경도, 점착성, 씹힘성이 유의적으로 크게 증가하였다. TGase 처리된 쌀을 이용하여 제조한 냉동 수리취 송편의 해동 후 조직감의 기호도가 크게 상승하였으며, 전체적인 기호도도 7.17점으로 높게 평가되었다. 냉동 수리취송편 제조 시 쌀에 TGase를 처리하고 수리취를 15% 첨가하는것이 적합하며 이는 관능적인 측면에서 좋은 기호도를 나타내는것으로 나타났다. 본 연구를 바탕으로 TGase를 처리한 쌀가루를 이용하여 관능적 특성이 우수한 냉동 수리취 송편의 제조 및 상품화가 가능하다고 판단된다. Transglutaminase (TGase), which forms linkages among proteins, has been used to improve food quality. In the current study, quality characteristics such as color values, texture profile parameters, and sensory profiles of the frozen surichwi (Synurus deltoids) rice cake made using transglutaminase (TGase) treated-rice flour were investigated, with a view to producing high-value rice products. The results indicate that Hunter color values (L and b) and TPA parameter values (hardness, gumminess and chewiness) of frozen surichwi rice cake made with TGase-treated rice flour were significantly changed, and that these properties may be applied to improve the sensory qualities of final products. Also, the sensory acceptability scores related to color, appearance, taste and texture, as well as overall acceptability of the TGase-treated frozen surichwi rice cake, were found to be significantly higher compared to controls. In conclusion, the results clearly indicate that TGase-treated rice flour carries the potential to improve the overall quality of frozen rice cake, and that surichwi is an effective ingredient for sensory profiles.
Implementation of Vision-based Real Time Helipad Detection System
Sewon Lee,Jin-won Jang,Kwang-Ryul Baek 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10
This paper presents vision-based helipad detection algorithm and implementation of embedded landing system for an UAV (Unmanned Aerial Vehicle). The helipad detection algorithm includes various image processing processes and feature recognition methods. It is essential for the embedded system that the detection algorithm should be simple and accurate. We propose optimized image processing algorithm and simple morphological algorithm to implement an embedded system for detecting the international standard helipad. First, we perform image preprocessing includes filtering, thresholding and labeling. After image preprocessing, we perform feature extraction of the helipad. Second, the size and position calculation of the detected helipad is performed. Third, the size and position information of helipad is transmitted via communication port. In these processes, we can estimate the position information of the UAV by using the size and the position of helipad in the aerial moving image. In experiment, we use aerial moving image photographed by coaxial rotor helicopter and save the detected helipad to SD-card to demonstrate the accuracy and real time processing capabilities. The experimental results show that proposed embedded system has features of real time and reliable accuracy.
Gabor Filter Bank를 이용한 보행자 검출 알고리즘
이세원(Sewon Lee),장진원(Jin-won Jang),백광렬(Kwang-Ryul Baek) 제어로봇시스템학회 2014 제어·로봇·시스템학회 논문지 Vol.20 No.9
A Gabor filter is a linear filter used for edge detectionas frequency and orientation representations of Gabor filters are similar to those of the human visual system. In this thesis, we propose a pedestrian detection algorithm using a Gabor filter bank. In order to extract the features of the pedestrian, we use various image processing algorithms and data structure algorithms. First, color image segmentation is performed to consider the information of the RGB color space. Second, histogram equalization is performed to enhance the brightness of the input images. Third, convolution is performed between a Gabor filter bank and the enhanced images. Fourth, statistical values are calculated by using the integral image (summed area table) method. The calculated statistical values are used for the feature matrix of the pedestrian area. To evaluate the proposed algorithm, the INRIA pedestrian database and SVM (Support Vector Machine) are used, and we compare the proposed algorithm and the HOG (Histogram of Oriented Gradient) pedestrian detector, presentlyreferred to as the methodology of pedestrian detection algorithm. The experimental results show that the proposed algorithm is more accurate compared to the HOG pedestrian detector.
Oxy-Combustion of Sludge Derived-fuel by Circulating Fluidized Bed Reactor
Ha-Na Jang(장하나),Seung-Ki Baek(백승기),Jin-Ho Sung(성진호),Sewon-Park(박세원),Hang-Seok Choi(최항석),Yong-Chil Seo(서용칠),Jeong-Hun Kim(김정훈),Seung-Jae Jung(정승재),Chang-Ho Oh(오창호),Jae-Yong Shim(심재용) 한국신재생에너지학회 2013 한국신재생에너지학회 학술대회논문집 Vol.2013 No.05