• Title, Summary, Keyword: Soybean

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The Effect of Hydrated Soybean Oil on Quality of Popped Rice for Preparing Salyeotgangjung (쌀엿강정용 팽화쌀 품질에 대한 대두경화유의 영향)

  • Kim, Myoung-Ae
    • Journal of the Korean Society of Food Culture
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    • v.21 no.6
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    • pp.679-684
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    • 2006
  • In this experiment, I used three samples of oils. The oils that I used were hydrated soybean oil, pure soybean oil and regular soybean oil. The group of rice was fried in the each sample of oil that had not been used for a few seconds. Rice was used after frying at 230-235$^{\circ}C$ every four hours terms and total frying hours was 12 hours. The hydrated soybean oils was least affected in rancidity. The other two oils were more affected in rancidity than the hydrated soybean oil. However, the trans fatty acid in hydrated soybean oil was 36.5%. The diameter of the poped rice that was fried in pure soybean oil and regular soybean oil that had been used 12 for hours was reduced while the diameter of the popped rice fried in the hydrated soybean oil was not reduced. Also, the groups of rice fried in the pure and the regular soybean oil that had been used for 12 hours reduced the hardness in rice while the group that fried in the hydrated soybean oil at the 12th hour kept the hardness well. In sensory evaluation, rancidity order was found apparently in the pure soybean oil that had been used for 12 hour and in the regular soybean oil that have been used for eight hours and 12 hours. Only the hydrated soybean oil did not have distinctive rancidity order at all. The degree of the crispiness was reduced in the pure soybean oil and in the regular soybean oil at 12th hour frying. However, the hydrated soybean oil preserved the crispiness well until the end of 12 hours of frying. In overall preference test, the pure and regular soybean oil that had been used for 12 hour were not preferable. In conclusion, I found that the group fried in the hydrated soybean oil was better in every evaluation than the groups fried in the pure soybean oil and in regular soybean oil. The hydrated Soybean oil may be better to be used in food manufacturing if the trans fatty acid in the hydrated soybean oil can be reduced.

Investigation of Fermented soybean sauce on Literatures before the 17th Century (17세기 이전 장류(醬類)에 대한 문헌적 고찰)

  • Choi, Young-Jin;Cho, Shin-Ho;Chung, Rak-Won;Kim, Eun-Mi;Won, Sun-Im;Cha, Gyung-Hee;Kim, Hyun-Sook;Lee, Hyo-Gee
    • Korean journal of food and cookery science
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    • v.23 no.1
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    • pp.107-123
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    • 2007
  • There were fifty two kinds of fermented soybean sauce before 17th century thirteen recorded in ${\ulcorner}$Sangayorock${\lrcorner}$, two in ${\ulcorner}$Sasichanyo${\lrcorner}$, one in ${\ulcorner}$Yongjechongwha${\lrcorner}$, nine in ${\ulcorner}$Soowonjabbang${\lrcorner}$, one in ${\ulcorner}$Domoondaejak${\lrcorner}$, six in ${\ulcorner}$Dongyoebogam${\lrcorner}$, four in ${\ulcorner}$Gushangchalyo${\lrcorner}$, five in ${\ulcorner}$Guhwangboyubang${\lrcorner}$, two in ${\ulcorner}$Yorock${\lrcorner}$, four in ${\ulcorner}$Chisengyoram${\lrcorner}$ and five in ${\ulcorner}$Joobangmoon${\lrcorner}$. These books had thing to know when making fermented soybean sauce like kinds of soybean sauce, how to make it, its ingredients and quantities to be used, how to make fermented soybean sauce in haste, and how to remake wrong made fermented soybean sauce, etc. Before 17th century, fermented soybean malt was divided into two kinds the only soybean malt and the mixed soybean malt that had bean, wheat, wheat flour and wheat bran. The bean only soybean malt was further divided into mashed soybean malt (Beans were steamed and mashed into past.) and unmashed soybean malt (Beans maintained their shape without being mashed.) while mashed soybean malts were made in Winger, in January of February, unmashed and mixed soybean malts were made in Summer, in July. When made fermented soybean sauce, mashed and unmashed soybean malts were used as they were and mixed soybean malt was dried and powdered for use. Fermented soybean sauce before 17th century could be classified by the features of soybean malts being used, Normal fermented soybean sauce was made from bean only soybean malts and other ingredients. Shi(시) was made from unmashed soybean malts, in which beans maintained their shape, and Gowhajang and Jeupjang were made from mixed soybean and wheat bran. Fermented soybean sauce was also made from old fermented soybean sauce, yeast. water leftover after boiling bean leaves, and soybean chaff without soybean malt. There were also side dish type soybean sauce like Kongjaban today and fish and meat sauce made from flesh ingredients. To make fermented soybean sauce in haste, the soybean sauce was heated. Beside there were how to maintain fermented soybean sauce and how to remake wrong made fermented soybean sauce.

A Study on the Consumption Patterns of Soybean curd and Processed Soybean Products of Residents in the Kwangwon Area of Korea (강원지역 주민들의 두부 및 대두가공품 이용실태)

  • 김은실;정복미
    • Korean journal of food and cookery science
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    • v.20 no.1
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    • pp.17-25
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    • 2004
  • This study was carried out to investigate the frequency of use, knowledge, purchasing, and degree of perception of processed soybean by residents in the Kwangwon area of Korea. The frequency of use of soybean curd was once per 4∼6 days(37.9%), once per 2∼3 days(31.9%), once per ten days(25.3%) and everyday(4.9%). The degrees of knowledge about soybean curd were a little(56.0%), interest(16.5%), much(14.8%) and no interest(12.7%). 73.9% of respondents had no experience of preparation soybean curd. The frequency of places for the intake of soybean curd were home(83.5%), restaurant(8.8%), tofu restaurant(5.6%) and the others(2.1%). The frequency of places for purchasing of soybean curd were supermarket(59.5%), market(25.0%), the others(9.9%) and department store(5.6%). The degrees of perception of soybean curd types were soybean curd(100%), uncurdled soybean curd(93.7%), soft soybean curd(64.7%), bun soybean curd(15.7%) and seaweed soybean curd(5.2%). The experience on the use of processed soybean of the respondents was highest for soybean curd(98.6%), followed by bean sprouts, soybean paste, soy sauce, soybean oil, soy flour, residue of soybean curd, soy milk, in that order. The most frequent intake experiences of soybean processed products of the subjects were beanpaste pot stew(96.8%), followed by tofu pot stew, tofu and kimchi pot stew, uncurdled bean curd pot stew, bean mixed rice, grilled tofu, in that order.

Oxidative Stability of Hydrated Soybean Oil during Heating at High Temperature (고온가열 과정 중 대두경화유의 산화안전성에 관한 연구)

  • Kim, Myong-Ae
    • Journal of the Korean Society of Food Culture
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    • v.23 no.1
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    • pp.26-32
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    • 2008
  • : In this experiment, three samples of oils were used. These oils were hydrated soybean oil, pure soybean oil and regular soybean oil. Oil was used after heating at $235-240^{\circ}C$ every four hours term and total heating hours was 16 hours. The physio-chemical analysis and sensory evaluation were performed on these oils. The hydrated soybean oil showed lower acid, peroxide and carbonyl value than the other two oils (p<0.05 or p<0.001). The other two oils were more affected in rancidity than the hydrated soybean oil. In color test, whereas L value lowed during the heating time, a and b value increased during the heating time. The tendency of high L value and low b value in a long-time heating was more apparant on the pure soybean oil and the regular soybean oil than on the hydrated soybean oil (p<0.05). In sensory evaluation, color and rancidity order increased during the heating time. The hydrated soybean oil showed color and rancidity order than the other two oils. In overall quality test, the pure and regular soybean oil that had been used for 12 and 16 hour were not preferable. The hydrated soybean oil that had been used for 16 hour were not preferable. In sensory evaluation, the hydrated soybean oil, the pure and regular soybean oil did not show a apparent difference, although the hydrated soybean oil had a little better scores on the overall quality.

Characteristics of Soybean Curd according to Various Soybean by Using Soybean Coagulant Removed with Arsenic (비소를 제거한 두부응고제를 사용한 콩의 종류에 따른 두부의 제조 특성)

  • Lee, Eun-Suk;Choi, Won-Sik
    • Journal of the Korean Society of Industry Convergence
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    • v.20 no.5
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    • pp.441-446
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    • 2017
  • Among the many foods, it is hard to find perfect food with nutrition and functionality like beans. Korean food culture is the main ingredient of korean culture, kochujang, soybean paste, and soy sauce, and processed soybean tofu is the main ingredient. Soybean meets high quality protein and fat, and it has excellent results in prevention and treatment of all kinds of diseases. Soybean food is becoming a new generation health food. In countries where animal protein intake is low, soybean is used as a protein source instead of animal protein. Tofu, a processed food, is a complete food with high digestibility. In order to publicize the superiority of soybean nutritional value, Tofu processing and powder were investigated by observing the size, shape and characteristics of bean powder using domestic soybeans and imported soybean, and the variation of the amount of coagulant.

Evaluation of Resistance to the Aphid (Aphis glycines Matsumura) in Soybean Cultivars and Germplasms

  • Kim, Myung Sik;Sung, Mi Kyung;Baek, Woon Jang;Kim, Min Hwan;Chung, Jong Il
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.57 no.4
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    • pp.365-372
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    • 2012
  • Native of soybean aphid (Aphis glycines Matsumura) is an Asia and aphid is one of the dangerous pests in soybean [Glycine max (L.) Merr.]. High density aphid populations can reduce crop production by causing severe damage. The objective of this study was evaluation of resistance to the soybean aphid in soybean cultivars and germplasms. A total of fifty five soybean cultivars or germplasms, including two susceptible and two resistant check varieties, were infested to evaluate their resistance in the field cage and greenhouse test by aphid colonies which derived from wild collected one soybean aphid biotype in Korea. The average number of reproduced soybean aphid was evaluated with 62.7 aphids in the resistant check variety PI 567598B and also estimated with 1,807 aphids for susceptible check variety Williams 82. In soybean varieties and germplasms, the average reproduced soybean aphid populations ranged from the lowest 497 aphids for Junjeori to the highest 3,862 aphids for Mansu. About seventy six percent of soybean cultivars and germplasms were shown high density soybean aphid populations when compared with another susceptible check variety PI 567543C in the field cage test. From the greenhouse test to evaluate aphid index, 87.3% of soybean cultivars or germplasms presented aphid index with 9.0. No soybean cultivars and germplasms were observed with soybean resistant phenotype when regarded a aphid resistant level as less than 10% aphid reproductions compared with susceptible check Williams 82. Although no Korean soybean cultivars were identified with resistant trait to the soybean aphid, we found one great resistant genetic resource PI 567598B in this study. This result will be helpful to further study for providing useful genetic information for soybean researchers.

Contents of Isoflavones and Antioxidative Related Compounds in Soybean Leaf, Soybean Leaf Jangachi, and Soybean Leaf Kimchi (콩잎 밑 콩잎 요리의 이소플라본 함량 및 항산화 관련 성분들의 비교)

  • Ryu Seung-Hee;Lee Hye-Suk;Lee Young-Soon;Moon Gap-Soon
    • Korean journal of food and cookery science
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    • v.21 no.4
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    • pp.433-439
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    • 2005
  • Soybean is an important plant as it is the source of protein and oil as well as various phytochemicals that are related with biological activity. Over the past decades, scientists have conducted considerable research on the physiological properties of soybeans, especially isoflavones, which are the characteristic components in soybeans. However, there is no research on the properties or the bio-functionality of soybean leaf. Jangachi and kimchi are two of the traditional special dishes of Gyungsang Province in Korea which we made from soybean leaves. Depending on the recipe, green or yellow soybean leaves are used for the preparation of these two side dishes. We compared the antioxidative activity and measured the contents of isoflavones, total phenol, chlorophylls, carotenoids, and vitamin C in the ingredients (green and yellow soybean leaf) and the final side dishes (jangachi and kimchi). We Int report that isoflavones were contained in soybean leaf and that jangachi had the highest isoflavone contents among the samples. Yellow soybean leaf contained higher isoflavones than green soybean lear and kimchi. From the TEAC assay results, the sequence or antioxidative activities was yellow soybean leaf > soybean leaf jangachi > green soybean leaf > soybean leaf kimchi. The sequence was the same with total phenol contents, indicating that antioxidative activity is highly related with total phenol level. Chlorophylls, carotenoids and vitamin C existed abundantly in green soybean leaf. In conclusion, soybean leaf could be a good material for health due to the presence of isoflavones and the other useful antioxidants mentioned above.

A study on comparative sensory properties of soybean rice cake prepared with soybean oil and soybean flour (콩기름과 콩가루를 첨가한 콩떡의 관능적 특성 (1))

  • 정혜숙;김경자
    • Korean journal of food and cookery science
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    • v.17 no.2
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    • pp.123-128
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    • 2001
  • Soybean rice cake, which is often used in Hamkyungdo, is well hewn for a good taste and the slow firiming rate. Since soybean rice cake may taste different according to the amount of ingredients, this study will make a test of the taste and properties of two groups of soybean rice cake. One is prepared from rice flour mixed with yellow soybean and peanut flour at several rate, and the other is prepared from rice flour mixed with oil extracted from yellow soybean and peanut, the containing amount of which is the same as that of oil ingredient contained in each flour. Rice cake prepared mixed with extracted soybean oil shows better characteristics than that which is prepared mixed with soybean flour containing the same amount of oil. The result by sensory test reveals that the element which has a great influence on soybean rice cake is oil. Prepared mixed with extracted oil, soybean rice cake tastes best at 6% of oil, while rice cake prepared mixed with flour instead of oil tastes best at 8% of flour. As this study shows that the relation between firiming rate and oil has a significant influence on cohesiveness, moistness, and chewiness, it is needed to further study the effect of oil according to the kinds of the flour of rice or other grains used.

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The Characteristic Changes of Soybean Curds by Addition of Several Types of Protein (여러가지 단백질 첨가로 인한 두부의 특성변화)

  • Pyun, Jin-Won;Hwang, In-Kyeong
    • Korean journal of food and cookery science
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    • v.6 no.3
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    • pp.33-41
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    • 1990
  • This study was conducted to compare the characteristics of the ordinary soybean curd and 3 protein-adding soybean curds (soy protein, casein, gelatin). The sensory evaluation, textural analysis by Instron Universal Testing Machine & the microstructure analysis by SEM for 4 soybean curds were carried out. The results were as follows: 1. In sensory evaluation. 1) The differentiation of soybean curds was greatly explained by `hardness in mouth' through ANOVA test. 2) Discriminant analysis showed that the properties of casein soybean curd were different from those of other three soybean curds by discriminant function I, and the properties of soy protein soybean curd were slightly different from those of ordinary and gelatin soybean curds by discriminant function II. 2. In textural analysis by Instron, protein-adding soybean curds showed significantly lower hardness than ordinary soybean curd. 3. In microstructure analysis by SEM, soy protein soybean curd showed regular, good honeycomb-like network structure and other soybean curds showed lumpy network. The structure of gelatin soybean curd was slightly similar to that of ordinary soybean curd.

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Quality Characteristics and Antioxidant Activities of Soybean Curd Products Containing Small Black Soybean (쥐눈이콩을 첨가한 두부제조에 따른 두부, 비지 및 순물의 항산화성)

  • Kim, Joon-Hee;Lee, Young-Tack
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.36 no.11
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    • pp.1431-1435
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    • 2007
  • Soybean curds were prepared by adding different levels (20, 40, and 60%) of small black soybean, and the quality characteristics of the soybean curds were investigated. The yield of soybean curd increased slightly with the increment of the levels of small black soybean, whereas L value (lightness) and b value (yellowness) decreased. Analysis of textural properties demonstrated that the addition of small black soybean lowered the hardness and chewiness of soybean curd, while it slightly increased the cohesiveness and adhesiveness. Antioxidant activities of soybean curd, soybean curd residue, and soybean curd whey were estimated by determining electron donating ability (EDA) to DPPH radical and superoxide dismutase (SOD)-like activity. These activities in all of the samples increased with the addition of small black soybean, especially in soybean curd residue and soybean curd whey; also, soybean curd whey containing small black soybean showed the highest activities.