• KOREAN JOURNAL OF CROP SCIENCE
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• v.44 no.4
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• pp.355-363
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• 1999

The experiments were carried out to elucidate the varietal variation of retrogradation in aged cooked rice and its association with some physicochemical properties of milled rice. The fifteen rice materials were selected from forty-three low-amylose japonica and Tongil-type rice cultivars based on palatability and retrogradation of cooked rice stratified by preliminary sensory evaluation of warm and cooled cooked rice. One japonica glutinous rice variety was included for comparison of retrogradation of cooked rice. The $\alpha$-amylase-iodine method was adopted for checking the varietal difference in retrogradation of cooked rice. The desirable checking time for evaluating the varietal difference in deterioration of aged cooked rice was four hours after storing in room temperature and two hours after preserving in refrigerator based on the largest coefficients of variations in degree of retrogradation of cooked rice. The rice cultivars revealing the relatively slow retrogradation in aged cooked rice were Ilpumbyeo, Chucheongbyeo, Sasanishiki, Jinbubyeo and Koshihikari. A Tongil-type rice, Taebaegbyeo, and a japonica cultivar, Seomjinbyeo, showed the relatively fast deterioration of cooked rice. The retrogadation index represented by the percentage of retrogradation difference between warm and cooled cooked rice to original estimates of warm cooked rice was significantly affected by the degree of retrogradation of cooled cooked rice. Generally, the better rice cultivars in eating quality of cooked rice showed less retrogradation and much sponginess in cooled cooked rice. Also, the rice varieties exhibiting less retrogradation in cooled cooked rice revealed higher hot viscosity and lower cool viscosity of rice flour in amylogram. The sponginess of cooled cooked rice was closely associated with magnesium content and volume expansion of cooked rice. The hardness-changed ratio of cooked rice by cooling was negatively correlated with solids amount extracted during boiling and volume expansion of cooked rice. The major physicochemical properties of rice grain closely related to the palatability of cooked rice may be directly or indirectly associated with the retrogradation characteristics of cooked nce. The varietal difference in retrogradation of cooked rice can be effectively classified by scatter diagram on the plane of upper two principal components based on some retrogradation properties of cooked rice. The deteriorated structural change in cooled cooked rice by observing through the scanning electron microscope was more conspicuous in the fastly retrograded cooked rice than in the slower one.

• Korean journal of food and cookery science
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• v.16 no.4
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• pp.342-351
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• 2000

This study aimed for exploring the best recipe of Sangjabyung to increase its utility value and to develop traditional Korean rice cake industry for next generation. The best recipe was determined after several tests such as sensory evaluation and mechanical measurements for texture, moisture content, and colorimetry. The samples prepared with 5% of acorn starch with honey showed the best scores in sensory evaluation for color and flavor, 5% of acorn powder with sugar for grain, 15% of acorn powder with sugar for moistness and chewiness, 15% of starch with honey for sweetness, and non-glutinous rice flour mixed with 10% of acorn powder and sugar for overall quality. Every item except for flavor was significantly different from that of control (P<0.05). The highest score for springiness was obtained from the samples prepared with 10% of acorn starch with sugar, cohesiveness with 5% of acorn starch with sugar, chewiness with 15% of acorn starch with honey, gumminess with 15% of acorn starch with honey, adhesiveness with 5% of acorn starch with honey, and hardness with 15% of acorn starch with honey. All items were significantly different from that of control (P<0.05). The overall quality of sensory evaluation was correlated with moistness(P<0.05), springiness, cohesiveness(P<0.01), and adhesiveness(P<0.01) in mechanical test. Moisture contents of rice flour, acorn starch, and acorn powder were 32.93%, 8.52%, and 13.26%, respectively. The desirable moisture content in Sangiabyung was 44.11% in the case of using rice flour with acorn starch or 44.33% for rice flour with acorn powder. As a result of colorimetry, the best L, a, and b values were obtained from the rice cakes with 5% acorn starch and oligosaccharides, with 15% of acorn powder and sugar, and with 15% of acorn starch with oligosaccharides, respectively. Overall. the most desirable recipe for Sangjabyung was determined as rice flour 315 g, acorn starch or acorn powder 35 g, sugar 60 g, salt 3.5 g, and water 130 ml.

• Korean journal of food and cookery science
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• v.30 no.5
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• pp.547-555
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• 2014

The purpose of this study is to understand consumer awareness and preference regarding rice cakes by surveying the awareness, preference, and consumption behavior of college students regarding rice cakes, and to survey their perception and usage of rice cakes, thereby using the results as basic data to establish measures to develop Korea's rice cakes. To sum up the study's results, the survey included both male (54.5%) and female (45.5%) subjects. Those aged "20 to 23" accounted for the largest share (67.9%) of total respondents, and those majoring in "humanities and social studies" comprised the largest portion (47.8%). A majority of the respondents resided in "small and medium-sized cities", and most either lived at home or lived away from their families. A majority of the subjects received monthly allowances ranging from 200,000 to 300,000 won. In order of awareness, the most well-known type of rice cake was "injeolmi (rice cake made from glutinous rice and coated with bean flour)", followed by "songpyeon (half-moon-shaped rice cake)", "garaeddeok (bar rice cake)", and "baekseolgi (steamed white rice cake)". The women were better aware of "injeolmi", "baekseolgi", and "garaeddeok" than the men, and "soemeoriddeok" was not commonly known among either gender. In terms of preferences for rice cakes, overall, the subjects liked "injeolmi" and "songpyeon" the most. However, certain differences were found in preferences for rice cakes between the men and women. The women exhibited higher levels of preference for "injeolmi" and "songpyeon" than the men. On the other hand, the men revealed higher levels of preference for "baekseolgi", "jeolpyeon", and "garaeddeok" than the women. The most common answer to important factors for popularizing rice cakes was "a diverse assortment of rice cakes", followed by "the development of creative technologies" and "the taste of rice cakes reflecting consumer needs", in order of importance. Among the important factors to popularize rice cakes, "the development of unique packaging containers for rice cakes" (p<0.05) and "the development of proper packaging materials" (p<0.05) showed statistically significant differences. In the survey of consumption of rice cakes, the most frequent answer to the question "why do you like rice cakes? was "their tastes are good" with 146 respondents, followed by "I have been eating them for long" with 115 respondents. To the question "when do you use rice cakes", the most frequent answer was "I use them in daily life" with 133 respondents, followed by "I use them at special events" with 115 respondents. The women were found to use rice cakes frequently in daily life, whereas the men used them frequently at special events. When asked whether they had the intention to use rice cakes as a meal substitute, 100 men answered that they had no intention, whereas 96 women answered that they had the intention. When asked about the type of rice cake considered suitable for a meal substitute, the most popular answer was "injeolmi" with 108 respondents, followed by "baekseolgi" with 106 respondents.

• The Korean Journal of Food And Nutrition
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• v.25 no.4
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• pp.1061-1067
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• 2012

Rice cake is the most historical food which has been developed from settlement of agriculture and typical traditional food which has manufacture and food historical meaning. Because, the process of rice flour, raw ingredient of rice cake, tells remarkable food processing technology of our nation, and is original form of processed food that we has been taken before agricultural life begun. In this study, contents analysis method is used. Ingredients of rice cakes appeared in "Gyuhapchongseo" glutinous rice 12 times (42.8%), nonglutinous rice 10 times (35.7%), and the others 6 times (21.4%) used as the main ingredients of rice cake. the rice cake separated into 15 types (53.5%) of steamed rice cake, 2 types (7.1%) of pounded rice cake, 3 types (10.7%) of boiled rice cake, 7 types (25%) of sauteed rice cake, and 1 types (3.5%) of the others. it become data for knowing social and dietary culture of the time. And it is for presenting fundamental material of possibility of modern rice cake.

• Korean journal of food and cookery science
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• v.22 no.3 s.93
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• pp.282-290
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• 2006

This study was carried out to investigate the effects of modified starch, sugars and enzymatic hydrolysis with ${\beta}-amylase$ on extending the self-life of Injulmi, a Korean soft and glutinous rice cake, in terms of maintaining a soft texture. The Injulmi was prepared with or without kneading of waxy rice flour, NaCl and water mixture. The Injulmi was stored at -20, 4 and $20^{\circ}C$ and the hardness was measured to calculate the Avrami exponents during storage. The results showed that cold heading and enzymatic hydrolysis with ${\beta}-amylase$ before steaming of the waxy rice dough significantly extended the self-life on the basis of the Avrami equation. Among the various additives including different kinds of starches, sugars and polymannuronic acid, the addition of 1.5% tapioca starch, 8.0% of glucose or 3.0% of polymannuronic acid was also effective for delaying the retrogradation phenomena during storage. However, despite the effectiveness of these treatments, the Injulmi developed hardness within 2-3 days at $4^{\circ}C$ and within 4 days at $20^{\circ}C$ while storage at $-20^{\circ}C$ showed a storage stability that was maintained over x days. Sensory showed the Injulmi prepared with NOVA-0.005, GL-8.0 had a lower hardness than that of the other treatments.

• Journal of the Korean Society of Food Culture
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• v.5 no.1
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• pp.1-41
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• 1990

To analyze dialy meal of royal meal, studied Bankwa Sang(Fruit Table) were on record Wonheng Ulmyo Jungri Euigwae (1795). Historic book 'Jungri Euigwae' described the king's visit to his father's royal tomb 'Hyun Neung Won', during the domain of Cheung Jo, the 22nd king of Choson Dynasty. The results obtained from this study areas follows. The fruit table, which similar in concept to desert in the west but quite different in service, was prepared for a guest. The table consisted of two kinds of trays, on which serveral kinds of fruit were stacked to a height of between 4 chon (4寸 : about 12 cm) and 1 chuk(1尺 : about 30.3 cm) according to Korean measurement system. The table was decorated with beautiful artificial flowers made of paper and silk. The number of sets to be arranged on the table were different according to the royal status of the eater: 12 sets-25 sets for king's mother, 7 sets-11 sets for the king. Soy sauce mixed with vinegar and pine-nu meal, mustard were ruled out from kind of sets. Kinds of dishes served with a meal generally were noodles (麵), soup (湯), fried fish (煎油花), fried meats and vegetables (花陽灸), slices of raw fish (魚膾), minced raw meat (肉膾), slices of boiled beef (片肉), stew (蒸), rice cake (餠), sweet rice dish (藥飯), patterned savory cake (茶食), fried cake made of wheat flour, honey and oil (藥果), fried glutinous rice cake (强精), various fruits preserved in honey (正果), sugar candies (各色糖), fruits (果物) honey (淸), soy sauce mixed with vinegar and pine-nut meal (醋醬), mustard (莽子).

• Journal of the Korean Society of Food Science and Nutrition
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• v.34 no.8
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• pp.1232-1238
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• 2005

The purpose of this study was to find the optimum addition amount of astringent persimmon paste to glutinous rice flour in the preparation of Gaminjeolmi (persimmon glutinous rice cake). The moisture contents of Gaminjeolmi with added astringent persimmon paste were 57$\∼$59$ \% $. With increasing addition of astringent persimmon paste, the L- and b-value were decreased. The a-value was the highest at the 8$\%$ level. In the mechanical evaluation of Gaminjeolmi, the hardness was the highest in the 0$\%$ astringent persimmon paste-lnjeolmi but the 0$\%$ level was decomposed after 2 day of storage. The adhesiveness and cohesiveness were the lowest at the 0$\%$ and 16$\%$ levels. The springiness did not differ significantly with the addition of astringent persimmon paste for 2 days of storage. The gumminess was the highest at the 0$\%$ level for 1 day of storage, significantly. In the sensory evaluation of Gaminjeolmi, the acceptance of the softness characteristics was the best at the 8$\%$ level. Addition of astringent persimmon paste improve preservation of Injeolmi and the addition of 8$\%$ of astringent persimmon paste to glutinous rice flour was found to be the best recipe in terms of the sensory qualities of softness and overall acceptability.

• Journal of the East Asian Society of Dietary Life
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• v.20 no.2
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• pp.254-262
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• 2010

Quality characteristics of griddled miljeonbyeong containing vegetable juice were assessed by conducting sensory tests and measuring texture and color. When varying amounts of carrot/or spinach juice was added to miljeonbyeong, the sensory preferences of appearance and texture were higher in miljeonbyeong containing a small amount of carrot and spinach vegetable juice, and the preferences of smell and taste were higher in miljeonbyeong containing a large amount of carrot and spinach juice. Overall, preference was highest in miljeonbyeong supplemented with 30 g carrot juice and 10 g spinach juice. Overall preference correlated significantly with appearance (r=0.44) and texture (r=0.47). In miljeonbyeong containing vegetable juice, tensile strength decreased significantly with increasing amounts of carrot juice (34.98~30.82) or spinach juice (40.84~37.07). In all miljeonbyeong samples, tensile strength increased slightly in 1 hour but rapidly increased after 2 hours. Lightness progressively decreased. A-value increased (3.46~9.63) and b-value increased with increasing amounts of vegetable juice added. No difference in the b-value increase was evident between carrot juice (15.19~26.43) and spinach juice(18.19~24.40). Tensile strength was markedly lower in miljeonbyeong amended with carrot juice (34.98~30.82g) or spinach juice (39.05~32.67 g), which contained fat-soluble pigment, as compared with vegetable-free miljeonbyeong (44.81 g), but the addition of beet juice (45.30~44.78 g) containing water-soluble pigment did not lower the tensile strength of miljeonbyeong compared to vegetable juice. In order to improve the texture of miljeonbyeong containing vegetable juice, tensile strength was measured in miljeonbyeong prepared with 30 g carrot juice or 10 g of spinach juice, which produced the highest sensory test scores, and additionally amended with potato starch, corn starch, glutinous rice flour, strong flour or yam powder with a consequent reduction in the content of wheat flour. Improvement was noted in carrot juice-containing samples prepared with 6 g corn starch, 15 g potato starch and 15 g hard wheat flour, and in spinach juice-containing samples prepared with 6 g corn starch, 6 g potato starch, 6 g hard wheat flour and 15 g dried yam powder.

• The Korean Journal of Food And Nutrition
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• v.22 no.2
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• pp.293-301
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• 2009

The purpose of this study was to investigate the quality characteristics of Gamgyul-Injeulmi containing different ratios of Citrus mandarin powder(0, 3, 6, 9 and 12%). The moisture content of the control group was 45.37%. As the ratio of Citrus mandarin powder increased, moisture content decreased. The water holding capacity of glutinous rice flour with Citrus mandarin powder decreased gradually in proportion to the amount of Citrus mandarin powder added. An analysis of Hunter's color values for Gamgyul-Injeulmi indicate that the addition of Citrus mandarin powder leads to lower L value and higher a and b value compared to the control. Textural analysis of Gamgyul-Injeulmi showed that the hardness, cohesiveness, gumminess and chewiness increased as Citrus mandarin powder was added, whereas adhesiveness and springiness decreased. According to the sensory evaluation of Gamgyul-Injeulmi, as the ratio of Citrus mandarin powder was increased, the flavor, sweetness and hardness all increased. Gamgyul-Injeulmi with 6% Citrus mandarin powder was rated as the best in terms of color and for overall preference in the sensory evaluation.

• Korean Journal of Food Science and Technology
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• v.4 no.2
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• pp.77-83
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• 1972

In order to study the processing adaptability of naked barley, SEDOHADAKA variety produced in Cheolanam-do(1971) was milled after polishing and examined with respect to its proximate principles, amino acid composition, viscosity, raising power, and amylose content, alkali number, blue value and X-ray diffraction pattern of its starch. The results are summarized as fllows: 1) Crude fiber content of naked barley which was milled at 81.6% (A), 79.2% (B) and 74.1% (C) was $2.48{\sim}2.36%$, indicating higher level than wheat flour. 2) Whereas the initial gelatinization temperature of naked barley flour was similar to that of wheat flour, the value of naked barley starch was $89.5^{\circ}C$, higher than that of wheat starch, Amylose content of naked barley starch was 28.5%, similar to wheat starch. 3) Raising power of naked barley starch was generally lower than that common cereal starches. 4) According to the X-ray diffraction pattern diagram, the degree of crystallization was lower in naked barley starch than in non-glutinous rice starch.