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        • KCI등재

          도정 및 품종혼합에 의한 고아미2호의 취반특성

          천아름,송진,홍하철,손종록,Chun Areum,Song Jin,Hong Ha-Cheol,Son Jong-Rok 한국작물학회 2005 Korean journal of crop science Vol.50 No.suppl1

          난소화성 다당류의 함량이 높은 고아미2호의 취반특성 개선 및 식미 향상을 목적으로 수행한 연구결과는 다음과 같았다. 1. 취반이 어려운 것으로 알려진 고아미2호는 가루로 1차 호화시킨 후에도 미세전분입자는 호화되지 않은 것으로 나타나 일반적인 취반방법으로는 식미개선에 어려움이 있는 것으로 나타났다. 도정에 의해서 색, 물성 및 호화특성의 변화를 살펴 보았으나 명도와 백도 이외에는 도정율에 따른 유의한 특성 변화는 없는 것으로 나타났다. 2. 상온수분흡수특성을 통해 고아미2호 최소 1시간 이상의 수침시간을 필요로 하며 관능평가를 통해 이 경우 식미가 더 양호함을 확인할 수 있었다. 3. 품종별 호화 및 취반특성을 비교해 본 결과 고아미2호의 호화개시온도가 $88^{\circ}C$로 매우 높고 일반 밥솥에서 취반할 경우 수분흡수율과 팽창용적이 적은 것으로 보아 취반 방법에 있어서 고온고압이 요구되는 것으로 나타났다. 4. 다른 품종과의 혼합을 통한 식미 혹은 물성 개선을 위해 아밀로스 함량이 다른 일품벼, 백진주, 화선찰벼를 비교한 결과 호화가 늦고 경도가 낮으며 노화특성이 양호한 백진주, 화선찰벼가 일품벼에 비해 더 적합할 것으로 예상되었고, 관능 평가를 통해 두 품종이 일품벼에 비해 전반적으로 더 양호한 것으로 나타났다. The functional vice (Oryza sativa L.) has been highly regarded recently, in the change of rice maykets in the world. Goami2 (GA), one of the functional rice varieties, was developed from high-quality rice, Ilpumbyeo (IP). From the previous study, GA has been proved its beneficial effect on the improvement of metabolic control and body weight reduction especially in obesity, We could certain that GA was very difficult to be gelatinized due to the micro lump shown in the Scanning electron micrographs (SEM) photos. To improve its cooking quality, we investigated the changes of physicochemical properties, which were differentiated by the conditions of milling and blending. As GA was milled every $2\%$ until eliminating $12\%$, the nitrogen content was decreased linearly. But the decreasing rate of nitrogen content of GA during milling process was relatively lower than that of IP. Thus, we assumed that GA has relatively high nitrogen in inner starch of grain. The degree of milling had no effect on the gelatinization of cooked GA, but affected lightness and whiteness linearly, which were ranged in normal values when the rice was milled more than $10\%$ in weight. So we could concluded that the milling process was not proper to improve cooking quality of GA. And we could suggested that GA was needed to soak into water at least one hour before cooking by it water absorption rate at normal temperature$(21^{\circ}C)$ and sensory evaluation. From the texture analysis, cooked GA had higher hardness than other varieties. Therefore, we blended GA with IP, Baekjinju(BJ) and Hwasunchalbyeo(HS), then subjected to sensory evaluation. All evaluation items including the sensory preference were the highest scores for the rice blended with glutinous rice varieties, BJ and HS.

        • KCI등재

          Risk of Malignancy in Thyroid Incidentalomas Identified by Fluorodeoxyglucose-Positron Emission Tomography

          천아름,조혜민,이승호,전홍우,박정미,김규진,정찬희,목지오,강성구,김철희,김보연 대한내분비학회 2015 Endocrinology and metabolism Vol.30 No.1

          Background: Thyroid incidentalomas detected by 2-deoxy-2-18F-fluoro-D-glucose positron emission tomography/computed tomography (18F-FDG PET/CT) have been reported in 1% to 4% of the population, with a risk of malignancy of 27.8% to 74%. We performed a retrospective review of FDG-avid thyroid incidentalomas in cancer screening subjects and patients with nonthyroid cancer. The risk of malignancy in thyroid incidentaloma and its association with the maximal standardized uptake value (SUVmax) in 18F-FDG PET/CT were evaluated to define the predictor variables in assessing risk of malignancy. Methods: A total of 2,584 subjects underwent 18F-FDG PET/CT for metastatic evaluation or cancer screening from January 2005 to January 2010. Among them, 36 subjects with FDG-avid thyroid incidentalomas underwent further diagnostic evaluation (thyroid ultrasonography-guided fine needle aspiration cytology [FNAC] or surgical resection). We retrospectively reviewed the database of these subjects. Results: Of the 2,584 subjects who underwent 18F-FDG PET/CT (319 for cancer screening and 2,265 for metastatic evaluation), 52 (2.0%) were identified as having FDG-avid thyroid incidentaloma and cytologic diagnosis was obtained by FNAC in 36 subjects. Of the subjects, 15 were proven to have malignant disease: 13 by FNAC and two by surgical resection. The positive predictive value of malignancy in FDG-avid thyroid incidentaloma was 41.7%. Median SUVmax was higher in malignancy than in benign lesions (4.7 [interquartile range (IQR), 3.4 to 6.0] vs. 2.8 [IQR, 2.6 to 4.0], P=0.001). Conclusion: Thyroid incidentalomas found on 18F-FDG PET/CT have a high risk of malignancy, with a positive predictive value of 41.7%. FDG-avid thyroid incidentalomas with higher SUVmax tended to be malignant.

        • KCI등재

          벼 품종에 따른 무균포장밥의 식미특성 및 품질 변이

          천아름,송진,김기종,김재현,손종록,오예진 한국작물학회 2007 Korean journal of crop science Vol.52 No.4

          1. 무균포장밥의 종합적 식미에는 외관과 항보다 맛과 조직감의 상관이 더 높은 것으로 나타났다. 2. 벼 품종별로 무균포장밥의 종합적 식미를 군집분석 한 결과 고품벼, 일품벼, 주남벼, 호평벼, 새추청벼, 상미벼, 삼백벼, 평안벼, 화성벼, 대안벼 및 남평벼가 식미가 우수한 것으로 나타났다. 3. 원료쌀 및 무균포장밥의 품질특성이 식미에 미치는 영향을 살펴보기 위해 상관분석을 실시한 결과 백미의 백도, 명도, 수분함량 등과는 정의 상관을 보이고 팽창용적 및 단백질 함량, 무균포장밥의 황색도 등과는 부의 상관을 보임을 알 수 있었다. 4. 저장기간에 따라 무균포장밥의 경도는 증가하고 응집성은 감소하나, 일단 가열을 한 뒤에는 유의한 물성 차이를 보이지 않았다. 5. 벼 품종 간에 무균포장밥 저장기간에 따른 유의한 품질변화는 나타나지 않았다. We carried out this experiment on the purpose to investigate the quality properties of aseptic-packaged cooked rice by cultivars in 2006. Brown rice was milled for white rice to 89.6% weight of it. Based on cluster analysis of acceptance of sensory evaluation, eleven rice cultivars of 29 cultivars had superior palatability. Whiteness(r=0.42, p<5%), lightness(r=0.39, p<5%), Toyo value(r=0.35, p<10%), and moisture content(r=0.33, p<10%) of milled rice were correlated positively with acceptability. Protein content(r=-0.40, p<5%), expansion rate(r=-0.68, p<1%) and water absorption rate(r=-0.42, p<5%) of milled rice, and yellowness(r=-0.45, p<5%) of aseptic-packaged cooked rice were negatively correlated. In sensory evaluation, correlation coefficients of taste and texture with acceptability were higher than those of appearance and flavor. During storage, hardness and cohesiveness of aseptic-packaged cooked rice before reheating were increased and decreased, but those after reheating had no difference based on storage period and cultivar. On the contrary, whiteness of reheated aseptic-packaged cooked rice with no distinct differences before reheating was decreased during storage. There were no significant differences of texture property, color characteristics and moisture contents by cultivar during storage.

        • KCI등재

          도정방법이 건식제분 쌀가루의 호화특성 및 저장 안정성에 미치는 영향

          천아름,조영제 한국산업식품공학회 2021 산업 식품공학 Vol.25 No.1

          This study was carried out to investigate milling's effect on the pasting properties and storage stability of dry-milled rice flour. Rice flour's moisture content was increased from 9.48% to 9.80% after going through a rice polisher, and the crude fat content of rice flour was decreased from 0.91% to 0.62% after going through a rice polisher. In the color index of rice flour, the rice polisher was only affected by yellowness. The pasting properties were verified through RVA, and it was confirmed that the use of a rice polisher had no significant effect on the pasting properties. As a result of observing the changes in fatty acid value, it was ascertained that the storage period could be increased using the rice polisher. These results suggest that the rice polisher can increase the storage period without changing the pasting properties.

        • KCI등재

          찰벼 품종에 따른 소곡주의 품질 및 기호도 변이

          천아름,김대중,윤미라,오세관,홍하철,최임수,우관식,김기종,주성철 한국작물학회 2010 Korean journal of crop science Vol.55 No.2

          국내에서 가장 오래된 전통주인 소곡주의 주질 개선을 위해 원료인 찰벼 품종에 따른 품질 특성을 살펴보았다. 국내 찰벼 품종 9품종으로 소곡주를 제조하여 그 품질을 비교한 결과, 백설찰벼가 소곡주 원료로서 가장 우수한 기호도 점수를 받았다. 구체적으로 살펴보면 단백질 함량은 6.9~7.5% 범위로 눈보라와 설향찰벼가 가장 낮았으며 한강찰벼가 가장 높았다. 단백질 함량과 관계된 백미의 경도 역시 설향찰벼가 가장 약하였고 백설찰벼가 가장 단단한 것으로 나타내었다. 찹쌀의 외관 특성은 품종별로 다소 상이하여 일부 육안으로 차이를 판별할 수 있었다. 호화특성은 품종 간에 차이가 뚜렷하였는데 동진찰벼의 낮은 점성은 아밀로펙틴 중 높은 단쇄 비율에 기인한 것으로 판단되었으며, 한강찰벼의 높은 점성은 아밀로펙틴의 낮은 단쇄 비율과 높은 중쇄비율 등에 기인한 것으로 판단되었다. 품종별 소곡주는 알코올 함량은 17.6~19.9%, 당도는 20.5~23.9 brix, pH 4.53~4.60, 총 산도는 4.0~4.8% 분포였으며, 당은 주로 glucose, 유기산은 주로 succinic acid로 이루어 진 것을 확인할 수 있었다. 품종 중 설향찰벼의 경우 알코올 함량이 높아 알코올 수율은 높고 잔류 당은 적은 것으로 나타났다. 품종별 색 특성은 신선찰벼를 제외하고 품종 간 차이가 크지 않았다. 찰벼 품종별로 소곡주의 관능검사를 실시한 결과 백설찰벼 소곡주의 기호도 점수가 가장 높았다. 소곡주 기호도는 포도당 등 당도가 높아 단맛이 강하고 투과율이 높아 맑은색을 갖는 특징과 관련이 높았으며, 발효 정도와 관련된 수율과는 부의 상관을 나타내었다. This study was carried out to compare the physicochemical characteristics and preference as a sensory quality of Sogokju (Korean traditional rice wine) from waxy rice varieties. The protein and moisture contents of milled waxy rice varieties were ranged 6.9~7.2% and 12.1~ 12.6%, respectively. Nunbora had the largest grain size. In pasting properties, Hangangchalbyeo had the highest peak, trough and final viscosities, and Dongjinchalbyeo had the lowest viscosity curve. These differences suppose to be caused by the amylopectin(AP) structure: Dongjinchalbyeo has the largest short AP chains (degree of polymerization (DP) 6-12) and the smallest middle AP chains (DP 13-24) in 9 waxy rice varieties, while Hangangchalbyeo has the smallest short AP chains and the largest middle AP chains. The alcohol contents of Sogokju brewed from 9 waxy rice varieties were 17.6~19.9%. The brix degree were ranged 20.5~23.9~circBx . The organic acid of Sogokju consisted mainly of succinic acid, and the free sugar of it consisted mostly of glucose. The sensory evaluation showed the highest palatability at the Sogokju from Baegseolchalbyeo. The palatability was positively correlated with the brix degree, the glucose content, and the turbidity, and negatively correlated with the production yield of Sogokju.

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