• Title/Summary/Keyword: Glutinous corn

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Quality Characteristics of Sulgidduk with Prepared Glutinous Corn Flour (찰옥수수 분말을 첨가한 설기떡의 품질 특성)

  • Hyun, Young-Hee;Nam, Hae-Won;Pyun, Jin-Won
    • The Korean Journal of Food And Nutrition
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    • v.21 no.3
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    • pp.293-299
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    • 2008
  • This study was conducted to investigate the effective ratio of Sulgidduk to glutinous corn flour. We measured the moisture content, color differences, and texture of Sulgidduk with glutinous corn flour and conducted a sensory test. There was a significant difference between the moisture content of the glutinous corn Sulgidduk batches with added glutinous corn flour and the control group. As the proportion of glutinous corn flour increased, the lightness(L) significantly decreased, whereas the redness(a) and yellowness(b) significantly increased. When the amount of glutinous corn flour increased, there was a significant increase in the hardness and adhesiveness, but a significant decrease in the cohesiveness. The results of the sensory evaluation showed that roughness increased significantly when the amount of glutinous corn flour was increased. The moisture and softness decreased significantly as the glutinous corn flour concentration increased. These results indicated that adding $5{\sim}10%$ corn flour to the glutinous corn Sulgidduk produced the best quality.

Properties of corn Starches Isolated from Irradiated Glutinous and Non-Glutinous Corn Grains

  • Kang, Il-jun;Byun, Myung-Woo;Yook, Hong-Sun;Lee, Soo-jeong;Chung, Cha-Kwon
    • Preventive Nutrition and Food Science
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    • v.2 no.1
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    • pp.23-28
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    • 1997
  • Physicohemical properties of corn starches isolated from non-glutinous and corn grains fol-lowing γ-irradiation up to 10kGy were investigated. Blue value, water binding capacity and swelling power decreased, while alkali number ad solubility increased by γ-irradiation , which was more pronounced in glu-tinous corn starch than in non-glutinous corn starch. The optical transmittance increased with an increment of heating temperature and applied irradiation doses. No significant difference was observed in Hunter's color value between both starches isolated from non- irradiated and irradiated and irradiated corn grains. Amylograph viscosities decreased remarkably as dose levels increased. The overall effects of γ-irradiation was more distinguished in glutinous starch than in non-glutinous starch.

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Sensory and mechanical characteristics of Okgalseobyung by Different ratio of Ingredient (옥갈서병의 재료배합에 따른 Texture 특성)

  • 이효지;허수연
    • Korean journal of food and cookery science
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    • v.16 no.6
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    • pp.538-547
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    • 2000
  • Ok-gal-seo-byung is a steamed rice cake which is made from rice flour mixed with com powder, sugars and cinnamon powder. This study aimed for exploring the best recipe of Ok-gal-seo-byung to popularize it. The most desirable recipe was determined after sensory evaluation and mechanical test for measuring texture, moisture content and colorimetry. In case of mixing rice flour with yellow com powder, the best result on each item was obtained in the following conditions: 15% of yellow com powder with honey for color, 15% of yellow com powder with sugar for flavor and sweetness, 5% of yellow com powder with honey for graininess, 5% of yellow com powder with sugar for moistness and chewiness, and 10% of yellow corn powder with sugar for overall quality. When glutinous com powder was used, the conditions giving the best results were as follows: 20% of glutinous com powder with sugar for color, graininess and chewiness, 30% of glutinous com powder with sugar for flavor, 10% of glutinous com powder with sugar for moistness and sweetness, 20% of glutinous com powder with sugar for overall quality. The best condition for each textural property was as follows: 10% of yellow com powder with sugar and 20% of glutinous com powder with sugar for springiness, 5% of yellow com powder with sugar and 30% of glutinous com powder with sugar for cohesiveness, 15% of yellow com powder with sugar and 20% of glutinous corn powder with honey for chewiness, 15% of yellow com powder with sugar and 30% of glutinous com powder with oligosaccharides for gumminess, 5% of yellow com powder with sugar and 10% of glutinous corn powder with sugar adhesiveness, 15% of yellow com powder with sugar and 30% of glutinous com powder with oligosaccharides for hardness. Moisture content in Ok-gal-seo-byung with yellow com powder and with glutinous corn powder which gave the most desirable results were 46.108% and 43.623%, respectively. As a result of colorimetry, the highest L value was obtained from 10% yellow com powder or glutinous com powder with oligosaccharides. The highest a value was obtained from 10% yellow com powder or glutinous corn powder with honey. The best b value was obtained from 15% yellow com powder with oligosaccharides and 30% glutinous corn flour with honey. Based on the results, the best recipe for Ok-gal-seo-byung was determined as follows: in case of using yellow corn powder, rice flour 315g, yellow com powder 35g, sugar 60g, water 100$m\ell$, cinnamon powder 0.5g, salt 3.5g, and in case of using glutinous com powder, rice flour 280g, glutinous com flour 70g, sugar 50g, water 110$m\ell$, cinnamon powder 0.5g, salt 3.5g.

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The Improvement of Corn Starch Isolation Process by Gamma Irradiation (옥수수 전분추출 공정개선을 위한 감마선 이용)

  • Byun, Myung-Woo;Kang, Il-Jun;Kwon, Joong-Ho;Lee, Soo-Jeong;Kim, Sung-Kon
    • Korean Journal of Food Science and Technology
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    • v.27 no.1
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    • pp.30-35
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    • 1995
  • Gamma irradiation was applied to non-glutinous and glutinous corns for improving starch isolation process. No significant changes in proximate composition of corn grains were observed by gamma irradiation. Irradiation at 1 and 5 kGy was effective for sterilizing all contaminated microorganisms of non-glutinous and glutinous corns, respectively. The moisture-uptake rate constants were increased in proportional to the steeping temperature and applied irradiation dose level. The irradiation efficacy on water absorption properties was also recognized in the corns stored for six months at room temperature. The combined use of gamma irradiation with sulfur dioxide solution was very effective for reducing steeping time. The starch yield gradually increased as irradiation dose levels increased. At 2 kGy, the sarch yield of non-glutinous and glutinous corns increased by 38% and 27%, respectively. No significant difference in Hunter's color value was observed between the starches isolated from nonirradiated and irradiated corn grains.

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A Study on the Recipe and the Characteristic of Yeots by Microwave Oven (Microwave oven을 이용한 엿 제조방법 및 특성에 대한 연구)

  • 김태홍
    • Journal of the Korean Home Economics Association
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    • v.23 no.3
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    • pp.55-61
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    • 1985
  • This study was designed to find out the optimum processing condition and the characteristics of yeots : In this study, Yeoteses were made from glutinous rice, Rice, Millet, Sorghum and Corn by microwave oven. The textural parameters of various Yeotses were determined by sensory evaluation and Rheometermeasurement. RESULTS : 1. The sweetness of all the raw materials before saccharification is 11%. In case of the sweetness of the raw materials after saccharification, Glutinous rice was the highest(28.8%) and Corn was the lowest(17.7%). Also, the sweetness of Glutionous rice Yeots was the highest(86%) and Corn Yeots was the lowest(82.7%).It showed similar tendancy to the sensory evaluation for sweetness. 2. The pH of the raw materials before saccharification was 4.4.The pH of sorgphum after-saccharification was the highest (4.7) and that of Corn was the lowest (4.3). 3. In the sensory evaluation of the various Yeotses, Glutinous rice Yeots showed the best quality and it did not showed any significant difference between glutinous Yeots and Rice Yeots.The overalll quality of Milet, Sorghum and Corn Yeotses were inferior to Glutnous and Rice Yeotses. Textural characteristics by Rheometermeasurement revealed differences among the various Yeotses. Hardness, Cohesiveness, Adhesiveness were the highest in Glutinous rice and Rice Yeotses. Adhesiveness showed similar tendancy to that of the sensory evaluation. 4. However, Becuase glutinous rice is more expensive than rice, it is desirable that we use Rice Yeots.

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Studies on the Exo-maltotetraohydrolase of Pseudomonas stutzeri IAM 12097 -Part III. Reaction products and hydrolysis rate on various carbohydrates of Exo-maltotetraohydrolase- (Pseudomonas stutzeri IAM 12097 의 Exo-maltotetraohydrolase에 관한 연구(硏究) -제3보(第三報). 각종기질(各種基質)에 대(對)한 Exo-maltotetraohydrolase의 분해산물(分解産物) 및 분해율(分解率)-)

  • Lee, Mi-Ja;Chung, Man-Jae
    • Applied Biological Chemistry
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    • v.28 no.1
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    • pp.1-7
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    • 1985
  • Exo-maltotetraohydrolase produced by Pseudomonas stutzeri IAM 12097 was characterized with respect to substrate specificity, the reaction products and hydolysis rate on various carbohydrates. Maltopentaose, maltoheptaose, soluble starch, amylose, amylopectin, oyster glycogen and gelatinized starch of corn, potato, glutinous rice, green banana and arrow root were hydolyzed by this enzyme, but ${\alpha},{\beta},{\gamma}-cyclodextin$, sucrose, raffinose, lactose, pullulan, maltose, maltotriose and maltotetraose were not hydrolyzed. Among oligosaccharides, maltohexaose was favorably hydrolyzed by this enzyme and the main reaction product of oligosaccharides and polysaccharides was maltotetraose. Addition of pullulanase to this enzyme increased the hydolysis rate on gelatinized starches. tut it did not on raw starches. Among various starches, corn starch was favorably hydrolyzed by this enzyme, whereas it acted on potato starch, arrow root starch and high amylose corn starch weakly.

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Physicochemical and Sensory Characterization of a Korean Traditional Rice Wine Prepared from Different Ingredients (첨가원료 종류에 따른 전통발효주의 이화학 및 관능특성)

  • Kim, Hye-Ryun;Jo, Sung-Jin;Lee, Seung-Joo;Ahn, Byung-Hak
    • Korean Journal of Food Science and Technology
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    • v.40 no.5
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    • pp.551-557
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    • 2008
  • In order to investigate the effect of different ingredients on the quality of Korean rice wines, 30% of rice were substituted by malt, corn, potato, soybean, glutinous millet, unpolished rice, glutinous rice, or non-glutinous rice, when rice wines were prepared. Physicochemical and sensory characteristics of the rice wines from the varying ingredients were evaluated. Sample rice wines were analyzed for ethanol, pH, total acid, amino acid, soluble solid, coloring degree, UV absorbance, reducing sugar, organic acids, and free sugars. After fermentation for 16 days, the ethanol contents ranged from 13.28 to 16.23%, while the total acid levels were within the range of 0.27 to 0.32%. The amino acid contents in eight samples ranged from 0.18 to 0.36%, while the soluble solid contents were within the range of 8.35 to $11.1^{\circ}$Bx. Among the eight samples tested, rice wine prepared with malt showed the highest level of coloring degree, UV absorbance, and reducing sugar levels, while rice wine prepared with potato showed the lowest value. Organic acid contents of rice wines prepared with soybean, glutinous rice, and non-glutinous rice showed the highest levels of succinic acid followed by acetic acid, citric acid, malic acid, and pyroglutamic acid. Free sugar contents of all rice wines showed the higher levels of glucose followed by fructose and maltose. Rice wines prepared with unpolished rice and corn showed the same highest overall sensory preference. By descriptive analysis, the overall mean sensory intensities of samples prepared with glutinous rice and non-glutinous rice, showed similar levels of 'sweetness', 'fruitiness', and 'freshness of aroma', while those samples prepared with soybean, glutinous millet, and potato showed stronger intensities of 'nuruk', 'grain aroma', and 'yellowness'. Rice wine prepared with corn showed middle ranges in all sensory attributes tested.

A Study on Wine of Yi Dynasty in 1600 (조선시대(朝鮮時代) 술에 관한 분석적(分析的) 고찰(考察) -조선중기(朝鮮中期) 1600 년대(年代)를 중심(中心)으로-)

  • Choi, Jong-Hee;Lee, Hyo-Gee
    • Journal of the Korean Society of Food Culture
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    • v.2 no.1
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    • pp.17-24
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    • 1987
  • As people know how to brew a wine from fruits and cereals, they continued to develope various wines good to their taste. Korean wines are also ones made from cereals and they have long been eager to improve the delicate taste. They used to drink Takju, raw rice wine, made from nonglutinous rice and Nuruk, a kind of yeast starter. During Koryo Dynasty, Soju a liquor was imported from Won(the Chinese dynasty). Nowadays this traditional folk wine, which had been developed variously and drunk all over the country, is decreasing year after year. The purpose of this study was to review on the wines ; its kinds, raw materials, brewing method, manufacturing utensils, measuring units and devices and the terms for wine making based on 20 documents published in 1600, in the middle of Yi dynesty. The results of review were as follows. 1. There were 121 kinds of wines at that time in Korea. 2. Among the raw materials for wines, major materials were glutinous rice, nonglutinous rice, wheat flour, wheat, mung bean, and black soybean. And minor materials were pepper corn, Lycium chinenisis, cinnamon, pine needles, pine nuts, jujube, mugwort leaves, lotus leaves, pine corn, pine bud, chrysanthemum, pine flowers, honey, Acanthopanox seoultenses, bamboo-root, marrowbone of blak cow, sweet flag, Ciprus noblis, Saurea lappa, honey suckle, Tricho santhes, azalea, the leaves of the paper mulberry, and bark of chungum tree. 3. There were several kinds of wines such as a wine without using Nuruk, a wine made from glutinous rice, nonglutinous rice, or glutinous and nonglutinous rice with flour. 4. There were several brewing methods for wines such as a wine boiled with ring rice cake, a wine brewed with loaves of rice cake, a wine brewed with hard boiled rice, a wine brewed with rice gruel, and a wine brewed with powdered rice gruel. 5. There were 23 kinds of utensils including measuring devices for weight and volume.

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Study on Waxy Corn - VIII. Botanical and Ear Characteristices of the Yellow Glutinous Corn Hybrid, Daehakchal Gold 1, at Various Planting Stages (찰옥수수 연구 - VIII. 찰옥수수 대학찰 골드 1호에 대한 파종시기별 주요 작물학적 및 이삭 특성)

  • Cha, Hui-Jeong;Choi, Yun-Pyo;Song, In-Kyu;Bok, Tae-Gyu;Lee, Hee-Bong
    • Korean Journal of Agricultural Science
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    • v.36 no.2
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    • pp.123-127
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    • 2009
  • This study was carried out to gain the informations about seedling transplanting cultivation of Daehakchal Gold 1 which was developed at the Corn Breed. and Genetics Lab., Coll. of Life and Sci., Chungnam Nat'l Univ. in 2009. This hybrid and Check were sowed over four times at intervals of 10 days from 15th April(1st) to 30th May(last) and transplanted at CNU Corn Breed. Farm the 20th seedling cultivated after sowing, respectively. Results obtained from this experiment were as follows; stem height of this hybrid were variable regardless of sowing and transplanting times, while ear height was gradually increased according to delay of sowing times. Ear size and sharp of fresh corn as one of important traits was good at 2nd harvest times, while tip filling of ear harvested at 1st time was not good and also it's size decreased according to delay of transplanting stage. Stability of this hybrid expressed as ratio of stem height to ear height was very good as 50% below. Accordingly, the proper sowing and transplanting times of Daehackchal Gold 1 considered the late in April to early in May as harvesting proper period.

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Effects of Replacing Corn with Chinese Brown Rice on Growth Performance and Apparent Fecal Digestibility of Nutrients in Weanling Pigs

  • Li, Defa;Zhang, D.F.;Piao, X.S.;Han, In K.;Yang, Chul J.;Li, J.B.;Lee, J.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.15 no.8
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    • pp.1191-1197
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    • 2002
  • This experiment was conducted to study the effects of replacing corn with Chinese brown rice on performance and apparent fecal digestibility of nutrients in weanling pigs. Seventy-two cross-bred (Duroc${\times}$Landrace${\times}$Large White) weanling pigs, weighing an average of $7.38{\pm}0.06kg$, were randomly assigned to either a corn-soybean meal diet (treatment 1), a corn-brown ricesoybean meal diet (treatment 2) and a brown rice-soybean meal diet (treatment 3). The brown rice used in this experiment was husked from one kind of early, long grain, non-glutinous rice (ELGNR, indica rice). The growth performance of weanling pigs in the experiment was similar during weeks 1 and 2, but feed conversion ratio (FCR) was significantly better in treatment 2 during weeks 3 and 4. During week 2, only the digestibility of organic matter in treatments 2 and 3 was significantly higher than that in treatment 1. During week 4, the digestibility of gross energy, ether extract, organic matter and dry matter in brown rice treatment, especially in treatment 3, were significantly higher than in treatment 1. At the end of the experiment, the concentration of serum urea nitrogen of pigs in treatment 2 was lower than that in treatment 1 and 3 and no difference was found in serum glucose and phosphorus. It could be concluded from this experiment that replacing 50% of corn with brown rice in the corn-soybean meal diet caused no negative effects to weanling pig performance, and apparent fecal digestibility was unaffected. It is feasible to replace corn with brown rice in weanling pig diets in southern China.