• 동아시아식생활학회지
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• 제11권1호
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• pp.11-18
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• 2001

The saccharification and sensory characteristics of Sikhe, Korean traditional beverage of saccharified rice, made from thirteen glutinous rice varieties and one of non-glutinous rice named I1pum were examined. During saccharification, Shinsunchalbyeo, Whasunchalbyeo, Yukdononhrimna 1 and Hangangchalbyeo showed the highest sweetness determined by refractometer. Yukdononhrimna 1 was good for the morphology and texture of cooked rice kernel during saccharification. There was interrelationship between contents of released reducing sugar and sweetness determined by refractometer during preparation of Sikhe. The overall acceptability determined by sensory evaluation of Sikhe made from Yukdonongrimna 1, was slightly higher than that of Sikhe made from Ilpum, the non-glutionous rice variety. Yukdononhrimna 1 was considered to the most suitable varieties of Sikhe.

• 한국식품조리과학회지
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• 제21권4호
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• pp.505-513
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• 2005

The purpose of this study was to investigate the product characteristics of 'Songhwasulgi,' which combines different kinds of pine pollen flours and sugars with non-glutinous, rich flour. The results of sensory evaluation indicated that the larger amount of pine pollen flour was mixed with non-glutinous rice flour higher level of bitterness, softness, and feeling after-swallowing was obtained degree of chewiness was in relation to the lesser amount of pine pollen flour. With regard to color, a higher acceptance level was achieved as the lesser amount of pine pollen flour was incorporated with non-glutinous rice How. On the other hand, it was revealed that the category of adding a honey to $7\%$ of pine pollen flour was found to be the highest level of flavor and overall quality According to the results of texture evaluation, the degree of hardness, adhesiveness, and cohesiveness decreased as the larger amount of pine pollen flour was combined with non-glutinous rice flour. It was also found that the springiness of the texture tended to be low as more pine pollen flour was added. In addition, the degrees of gumminess and chewiness was inversely related to the amount of pine pollen flour With respect to a correlation between sensory evaluation and mechanical test, it was found that Songhwasulgi with higher acceptance level for color and flavor also obtained a higher level of hardness and overall quality.

• 한국식품과학회지
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• 제27권1호
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• pp.30-35
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• 1995

전분 추출공정을 개선하기 위한 목적으로 감마선 조사기법을 이용하였다. 감마선 조사에 의해 옥수수 시료의 일반성분은 변화가 없었으며, 미생물 오염도는 크게 감소하여 메옥수수의 경우 1 kGy, 찰옥수수의 경우 5kGy의 조사로 모든 미생물을 완전히 사멸시킬 수 있었다. 수침 및 아황산 용액에서의 수분흡수 속도상수는 침지온도 및 감마선 조사선량과 비례하여 증가되었으며 실온에서 6개월간 저장후에도 감마선 조사효과가 뚜렷하였다. 또한 아황산 용액은 수침에 비해 옥수수의 수화에 매우 효과적이며, 감마선 조사의 병용으로 그 효과를 더욱 향상시킬 수 있었다. 아황산농도 0.2%, $50^{\circ}C$, 40시간의 침지조건에서의 전분추출에 있어서 메옥수수와 찰옥수수 모두 감마선 조사로 전분의 수율을 최고 38%와 22%씩 증가시킬 수 있었으며, 추축된 전분의 색도는 찰옥수수 10 kGy 전분만을 제외하고는 모두 시료간에 유의적인 차이가 나타나지 않았다.

• 한국식생활문화학회지
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• 제25권1호
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• pp.25-35
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• 2010

This article examines the types of tteok (Korean rice cake) recorded in 21 old literatures of the Joseon dynasty (1392-1909) according to its main ingredients. Tteok varieties of the Joseon dynasty were categorized into jjin-tteok, chin-tteok, jijin-tteok, salmeun-tteok and guun-tteok and their changes in cooking method were discussed from the early to late eras of the Joseon dynasty. These can be summarized as follows. In the early, middle and late eras of the Joseon dynasty, there were 1, 15 and 84 kinds of tteok using non-glutinous rice as the main ingredient, and 6, 24 and 120 kinds using glutinous rice, respectively. Tteok using wheat flour was not found in the early Joseon dynasty, whereas 6 and 32 kinds were found in the middle and late eras, respectively. There were 1, 4 and 5 kinds of tteoks using buckwheat, and 5, 11 and 19 kinds using other ingredients such as yam, barley, elephant's ear, oat, and arrowroot flour, in the early, middle and late eras, respectively. The frequency of the main ingredient increased in the order of glutinous rice>non-glutinous rice>wheat flour>other ingredient>buckwheat flour during the Joseon dynasty and the ratio of tteoks using non-glutinous and glutinous rice flours was 1:1.5. The number and types of tteok were noted to increase abruptly throughout the Joseon dynasty. This may be associated with the commercial industrial development that prevailed in the late Joseon dynasty. Further study will be conducted on their recipes and ingredients recorded in these old literatures to develop a standardized recipe for the globalization of tteok.

• 급식외식위생학회지
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• 제5권1호
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• pp.30-39
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• 2024

Rice, nuruk, and water are the main ingredients to prepare takju, a traditional Korean liquor. Takju quality varies depending on the type of ingredients and fermentation temperature. In the current study, different combinations of nuruk (SH, JJ) and rice (glutinous rice, non-glutinous rice) were fermented at different temperatures (20, 25℃) and analyzed for quality characteristics over the fermentation period of 10 days. Regardless of the temperature, higher soluble solids (27.1~29%) were measured in the takju prepared with glutinous rice compared to non-glutinous rice. And acidity increased from 0.03% to 1.1% to all takju fermented at both 20 and 25℃, and, higher acidity was measured in the takju prepared with JJ nuruk. The color value of lightness (L) decreased from 57.9 to 23.9. Alcohol content was less than 15.5% in glutinous rice takju and less than 12.3% in non-glutinous rice takju. Total bacteria count (7~8 Log CFU/mL) and lactic acid bacteria count (4~7 Log CFU/mL) increased in different takju. However, the very high yeast count was recorded in takju prepared from SH nuruk compared to takju prepared from JJ nuruk at 0 day of fermentation. A sharp decline (84.92~98.57%) of yeast was observed just after the 1st day of fermentation which gradually reduced to lowest at 4th day of fermentation. No yeast was observed at 6th day fermentation and onwards. These results indicate that the raw materials, especially rice and nuruk, affect the physiochemical properties of takju.

• 동아시아식생활학회지
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• 제18권5호
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• pp.760-765
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• 2008

유색미 품종 중 흑자색을 띠면서 검정 약쌀이라는 명칭으로 시판되고 있는 찰과 메, 2종류와 백미의 배유 성분 특성들을 비교 검토하였다. 전분 분자 중 아밀로오스와 요오드의 정색 반응 결과인 청가(blue value)로부터 환산한 아밀로오스 함량은 흑미 찹쌀과 흑미 멥쌀 보다 백미가 높게 나타났으며, 아밀로오스 함량이 높은 품종일수록 흡광도가 높았다. 무기질 함량은 식미와 관련하여 포괄적인 영향을 미친다고 보고되고 있는데, 그 중에서도 Mg/K 비율은 특히 밥의 찰기와 관련이 있다. 본 실험에 사용한 시료 중 흑미 찹쌀의 Mg/K 비율이 가장 높아 가장 찰기가 많은 것을 확인 할 수 있었다. 흑미는 전체 아미노산 함량은 큰차이를 보이지 않았으나 lysine의 경우 백미보다 흑미 멥쌀과 흑미 찹쌀이 더 높았으며 전체적으로 아미노산이 골고루 함유되어 있음을 알 수 있었다. 지방산 조성 분석은 흑미 또한 백미와 마찬가지로 palmitic acid, oleic acid와 linoleic acid가 전체의 약 95%를 차지하여 이세 가지 지방산이 주된 지방산임을 알 수 있었다. 신속점도계(RVA)를 이용한 호화 특성에서 breakdown 값은 흑미 멥쌀이 낮은 값으로 나타나 가열 호화된 후에도 입자가 붕괴되지 않고 어느 정도 입자의 형태를 유지할 수 있는 것으로 생각된다.

• 동아시아식생활학회지
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• 제16권6호
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• pp.677-683
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• 2006

Glutinous rice cake(Chalduk) was made by varying the hours of soaking time of glutinous rice in the water(0, 4, 8, 12, 24 hours). After storage for various periods, the sensory and physical characteristics and the degree of gelatinization were examined in order to determine the effect of glutinous rice soaking period on the quality of Chalduk. The results of the study are summarized as follows. In the sensory test, 8-hour water soaking produced the significantly highest score for salty taste, while 0-hour water soaking had the lowest score. Four-hour water soaking had the significantly highest score for the degree of chewiness. Eight-hour water soaking had the significantly highest score for overall desirability. For the moisture content of Chalduk covered with bean flour, 8-hour water soaking produced the highest moisture content but the difference was not significant. For the degree of gelatinization, 8-hour water soaking had the highest maltose content, which confirmed the suitability of 8-hour water soaking glutinous rice. Eight-hour water soaking had the lowest hardness. With increasing storage period, the hardness sharply increased. Elasticity was higher for the long-period immersed samples than for the non-immersed samples. In conclusion, an 8-hour soaking time for glutinous rice in water was proposed to maximize the Chalduk quality.

• Preventive Nutrition and Food Science
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• 제9권2호
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• pp.133-137
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• 2004

This study was carried out to establish a method for the detection of irradiated glutinous rice by measuring pulsed photostimulated luminescence (PPSL) and viscometric properties. Viscosity was determined using a Brookfield DV-III rotation viscometer at 3$0^{\circ}C$ and measured at 30, 60, 90, 120, 150, 180, and 210 rpm. All irradiated samples indicated a decrease in viscosity with increasing stirring speeds (rpm) and irradiation doses. Treatments with 2∼5 kGy significantly decreased the viscosity. The photon counts of the irradiated glutinous rice were measured by PPSL and the photon counts of the non-irradiated and irradiated glutinous rice measured immediately after irradiation exhibited an increase with increasing irradiation dose. The photon counts of irradiated glutinous rice almost disappeared with the lapse of time when stored under normal room conditions, but was still possible to detect after 12 months of darkroom storage. Consequently, these results indicate that the detection of irradiated glutinous rice is possible by both viscometric and PPSL methods.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2000년도 춘계 학술대회지
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• pp.56-57
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• 2000

• 한국식품영양과학회지
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• 제41권6호
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• pp.846-852
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• 2012

멥쌀, 찹쌀, 찐멥쌀의 수분함량(9, 12, 15, 18%)과 즉석팽화기의 팽화온도(200, 210, $220^{\circ}C$)를 달리하여 제조한 즉석팽화스낵의 체적밀도, 색도, 수분용해지수와 수분흡착지수, 미세구조 등의 물리적 특성을 조사하였다. 즉석팽화스낵 제조 시 수분함량과 팽화온도가 증가함에 따라 체적밀도는 감소하는 경향을 나타내었다. 색도에서 수분함량이 감소할수록, 팽화온도가 증가할수록 L값은 감소하는 경향을 나타내었고 a, b값은 증가하는 경향을 나타내었다. 수분용해지수와 수분흡착지수는 수분함량과 팽화온도가 증가할수록 증가하는 경향을 나타내었다. 멥쌀, 찹쌀, 찐멥쌀 간에는 체적밀도, 파괴력, 수분용해지수와 수분흡착지수에서 차이를 나타내었고 색도에서는 큰 차이를 나타내지 않았다. 미세구조는 수분함량이 9%에서 15%로 증가함에 따라 기공의 크기가 작고 균일하게 분포되었으며 찹쌀 즉석팽화스낵의 기공이 가장 작고 균일하게 나타났다.