• Title/Summary/Keyword: sweet corn

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γ -Aminobutyric Acid (GABA) Content of Selected Uncooked Foods

  • Oh, Suk-Heung;Moon, Yeon-Jong;Oh, Chan-Ho
    • Preventive Nutrition and Food Science
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    • v.8 no.1
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    • pp.75-78
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    • 2003
  • We analyzed the ${\gamma}$-aminobutyric acid (GABA) content of a selection of uncooked foods. Foods with GABA concentrations in excess of 100 nmole per g dry weight included: brown rice germ, brown rice sprouts, barley sprouts, bean sprouts, beans, corn, barley, brown rice, spinach, potatoes, sweet potatoes, yams, kale and chestnuts. Cereals included: brown rice germ, brown rice sprouts, barley sprouts, bean sprouts, beans, corn, barley, and brown rice and had GABA concentrations of 718, 389, 326, 302, 250, 199, 190, and 123 nmole per g dry weight (DW), respectively. The vegetables: spinach, potatoes, sweet potatoes, yams and kale contained 414, 166, 137, 129, 122 nmole GABA per g DW, respectively. The GABA concentration of chestnut was 188 nmole per g DW. However, oatmeal, adlay, broccoli, squash, carrots, onion, apples, lentinus edodes, green laver, and lactobacillus had GABA concentrations of less than 100 nmole per g DW. These results show that brown rice germ, sprouted cereals and spinach are good sources of plant-derived GABA. These data will be useful in selecting foods for the manufacturing of uncooked foods containing a relatively high concentrations of GABA.

Growth Characters and Sugar Content During Grain Filling in New Hybrid, Chalok 1/Cooktail 51 Corn

  • Hwi, Kim-Ik;Kim, Soon-Kwon;Lee, Sang-Chul
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.46 no.2
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    • pp.69-77
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    • 2001
  • 'Chalok 1/Cooktail 51' corns, supersweet corn gene controlled by either brittle-l (bt l) or shrunken-2(sh2) gene introduced into waxy corn, showed agronomic characteristics between supersweet corn and waxy corn. The ears were harvested at different development stages from 15 to 35 days after silking (DAS). Ear diameter of Cocktail 51 and 'Cocktail 51'/Chalok 1 increased from 15 DAS to 30 DAS and little increased thereafter, but that of Chalok 1/Cocktail 51 and 'Chalok l' increased until 35 DAS. Diameter of ear extension increased more in Cocktail 51 and Chalok 1/Cocktail 51 corn than Chalok 1. Ear fresh weight of Cocktail 51 decreased later 30 DAS but those of the other hybrids were vice versa. Rate of super-sweet kernels per ear of Chalok 1/Cocktail 51 corns was about 38 %. Development, and elongation of kernel were much more prominent in supersweet kernel than in waxy kernel, but fresh weight increased higher in waxy kernel than supersweet kernel. Moisture content in kernel decreased from 15 DAS to 35 DAS. Total sugar content of the kernel increased until 25 DAS, and that of Cocktail 51 kernel showed the highest among of them. After cooked by steam, flavor and mastication feeling rate cooked by steam of Cocktail 51 and Chalok 1/Cocktail 51 were increased from 15 DAS to 25 DAS and markedly decreased thereafter. But those of Chalok l/Cocktail 51 and, Chalok 1 were decreased after 30 DAS. These results suggested that the optimum harvest date for fresh supersweet corn (Cocktail 51), Cocktail 51/Chalok 1 seems to be about 20 DAS and Chalok 1/Cocktail 51 and waxy com (Chalok 1) was about 25 DAS.

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Impurities formed from ethanol fermentation process among different materials and it′s effective separation in large scale (대규모의 주정발효 과정에서 생성된 불순물과 그 효율적 분리)

  • 류병호;김운식;남기두;이인기;하미숙
    • Microbiology and Biotechnology Letters
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    • v.14 no.5
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    • pp.371-376
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    • 1986
  • This study to elucidate concentrations of impurities such as methanol and fusel oil formed during fermentation process among the different materials and has been applied technical seperation for processing improvement by continuous distillation of super-allospas type. Methanol was formed high concentrations of cutting dried sweet potato and tapioca in order among the different materials during fermentation process. n-Propanol oil was formed high concentration of rice, cutting dried sweet potato, corn, naked barley and tapioca in order among the those materials. I-Buthanol showed high concentration of tapioca, corn, rice, cutting dried sweet potato and naked barley in order and isoamyl-alcohol showed high concentration of tapioca, rice, cutting dried sweet potato, corn and naked barley in order. Using the continuous distillation of super-allospas type, the following are collection ratios of n-propanol, iso-butanol, n-butanol and iso-amylalcohol: 37.9%, 28.6%, 37.4%, and 56.1% when 78.25% (v/v), 68.54% (viv), 50.0% (viv), and 50.0% (v/v) alcohol are used, respectively. Fusel oil and bad alcohol put into the recovery column and then seperated directly by side cut of fusel oil partially from plate of tower bottom after concentration again. Extra impurities seperated by fusel oil seperator when 20 % (v/v) alcohol adjusted with water.

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Effects of Starches on the Quality Characteristics of Raw and Cooked Noodles (전분 첨가가 생면 및 숙면의 품질특성에 미치는 영향)

  • Lee, Mi-Kyoung;Shin, Min-Ja;Yoon, Hye Hyun
    • Culinary science and hospitality research
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    • v.20 no.4
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    • pp.310-321
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    • 2014
  • This study investigated the effects of starches(potato, sweet potato, and corn starch) on the quality characteristics of raw and cooked noodles. The moisture content, color, mixogram, texture profile and sensory evaluation were performed. The mixogram showed the addition of starches shortened the kneading time. Mixing tolerance was higher in the noodles with starch than the control group, which indicates that the addition of starch increases dough durability. Moisture content of raw noodles was the highest in the samples with potato starch. L-value of raw noodles was the highest in the samples added with corn starch, whereas that of cooked noodles was the highest in the samples added with potato starch. The hardness of raw noodles was the highest in the control sample, and the chewiness of raw noodles was the highest in the samples added with sweet potato starch. The hardness of cooked noodles was the highest in the samples added with corn starch and the lowest in the control group. The tension distance of raw noodles was the longest in the control group and the tension force of raw noodles was the highest in the noodle with sweet potato starch. The acceptance test indicated that the noodles prepared with the addition of sweet potato starch scored the highest in flavor, taste, texture and overall acceptability.

Planting Time for the Economic Yield of a Super Sweet Corn Hybrid in the Southern Part of Korea (남부지방에서 초당옥수수의 경제적 파종한계기)

  • Yang, Seung-Kyu;Hong, Seung-Beom;Lee, Suk-Soon
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.52 no.3
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    • pp.325-333
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    • 2007
  • To find out the planting times for the economic yield of a super sweet corn hybrid, "Cambella 90" was planted from 1 April of 2003 and 2004 at the 10 days intervals under black polyethylene (P. E.) film mulch and in bare soil in Gyeongsan. Daily maximum soil temperature under black P. E. film mulch was lower, while daily minimum soil temperature was higher compared to bare soil. Soil moisture content under black P. E. film mulch maintained optimum level longer than in bare soil. Emergence rate, percent stand, culm length, and the number of marketable ears were higher under black P E. film mulch compared to bare soil. Silking date under black P. E. film mulch was earlier compared to bare soil by $4{\sim}6$ days at April plantings, while only 1 day earlier at June plantings. Silking date of individual plants in a plot ranged $3{\sim}5$ days depending on planting dates and soil mulch in the same plot. The number of large ears decreased as planting dates delayed. Considering emergence rate and the number of marketable ears, the planting time for the economic yield of a super sweet com hybrid, "Cambella 90" ranged 1 April to 20 June in the southern part of Korea.

Physicochemical Properties of Korean Sweet Potato Starches (한국산 고구마 전분의 품종별 이화학적 성질)

  • 임승택;박지연;안영섭;신동훈
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.1
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    • pp.1-8
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    • 1999
  • Starch was isolated from nine Korean sweet potato varieties(Shinmi, Seangmi, Yulmi, Shinyulmi, Sunmi, Jeungmi, Mokpo 26, Mokpo 29, and Mokpo 30) and analysed in its physicochemical properties in comparison with a commercial sweet potato starch(Kumokanyu) imported from China. Protein content in the isolated starch was highest(1.1%) in Mokpo 29 and lowest(0.3%) in Kumokanyu, whereas lipid content was equally less than 0.2%. Pasting analysis by Rapid Viscoanalyser(RVA) showed that Yulmi starch had the lowest pasting temperature(70.2oC) whereas Kumokanyu did the highest one (74.3oC). Under a differential scanning calorimetry(DSC), however, Kumokanyu showed the lowest onset temperature(61.8oC) and enthalpy(42.0 J/g) for crystal melting. Shinyulmi showed the highest peak viscosity of the starch paste, but shear thinning was significant like commercial potato starch. Kumokanyu, however, displayed the least peak visicosity but good shear stability. With the starch gels prepared at 4oC, Mokpo 29 showed the highest hardness, whereas Shinyulmi did the lowest one. Against repeated freeze thawing treatments, the starch gel of Kumokanyu was most stable, and among the Korean varieties, Yulmi, Shinyulmi, Jeungmi and Mokpo 26 had good stability. According to the chain distribution analysis, Shinyulmi and Mokpo 29 consisted of larger quanitites of shorter amylopectin chains than Kumokanyu, potato and corn starches.

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Preparation of Semi-solid Infant Foods Using Sweet-pumpkin (단호박을 이용한 반고형 이유식의 제조)

  • 박현경;임성경;손경희;김현정
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.6
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    • pp.1108-1114
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    • 2001
  • This study was conducted to develop semi-solid infant foods using pumpkins. Purees were made from pumpkin and sweet-pumpkin, and were manufactured with blending, steaming or blanching. The moisture content of sweet-pumpkin puree was lower than pumpkin puree, but viscosity, Hunter\`s L, a, b values, $\beta$-carotene and riboflavin contents were higher. Steaming puree from sweet-pumpkin had the highest score in overall-preference and was selected as the ingredient far infant foods. In amylogram, gelatinization temperature was decreased and amylograph viscosity was increased, as the content of modified starch became high. Semi-solid infant floods were prepared with steaming puree from sweet-pumpkin, modified corn starch, rice powder and dairy products such as milk, whole milk powder and skim milk powder. After sterilization of infant foods, Hunter\`s color values were little changed. And the viscosity of infant foods were increased generally, but kept in 3% modified starch group. Sensory evaluation results showed that sweet-pumpkin puree 40%, rice flour 7%, skim milk powder 3% and water 50% was optimum ratio of infant foods.

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A Study on the Comparison Among Korea, China and Japan Food Cultures (II) - From 14C to 19C, on the Daily foods - (한(韓).중(中).일(日)의 식생활문화(食生活文化) 비교연구(比較硏究) (II) - $14{\sim}19$세기, 일상식품(日常食品)을 중심(中心)으로-)

  • Ahn, Myung-Soo
    • Journal of the Korean Society of Food Culture
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    • v.12 no.3
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    • pp.353-364
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    • 1997
  • A study was carried out to compare the daily foods which were eaten during $14{\sim}19$ century among Korea (Chosun dynasty), China (Ming, thing dynasty), and Japan (Muromachi, Edo era). Specially, in Ming, Ching dynasty, Noodles and dumpling were cooked very often and in Muromachi, Edo era, many kinds of beans were used so much, and there were many kinds of steamed rice to compare with Korea and China. Also, in Japan at these era Woodong, Morisoba, and Somyen were used as favorite foods harbitually. 1. The crops were used as staple foods in three countries such as steamed rice, gruel, noodle, dumpling, rice cake etc. commonly. 2. In Chosun, a roe deer, deer, antelope, and wild boar were more favoite dishes than cow, chicken, and dog, generally people enjoyed to eat pork and chicken. In Ming Ching, pork, chicken, goose, dove, lamb, ass, and duck were used as food materials, also wild animals such as deer, rabbit, and monkey etc. were used. In Muromach era, wild animal as racoon dog, otter, deer, antelope, bear, were used as food materials, in early Edo era (Yayoi and Momoyama), beef and pork were used as daily foods but they were eaten decreasingly in Edo era. So in Japan at those era, the dishes prepared of fishes were more than those of meats. For example, Sushi was made from that time, people all over the world are enjoying to have Sushi at present time. 3. Also in these era, many kinds of vegetables and fruits were used in three countries, and new kinds of vegetables and fruits were introduced from foreign countries, for example, red pepper, pumpkin, sweet potato, potato in Korea, corn, sweet potato, red pepper in China, and water melon, pumpkin, corn, red pepper, marmellow, sweet potato, sugar beet in Japan.

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Discussion of Cropping Management Factor for Estimating Soil Loss (토양유선량(土壤流先量) 예측(豫測)을 위(爲)한 작부인자(作付因子) 검토(檢討))

  • Jung, Pil Kyun;Ko, Mun-Hwan;Um, Ki-Tae
    • Korean Journal of Soil Science and Fertilizer
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    • v.18 no.1
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    • pp.7-13
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    • 1985
  • The cropping management factor, C, in the Universal Soil Loss Equation (USLE) has been measured on a newly reclaimed Yesan sandy loam of 20% slope under various cropping system. Soil losses measured from lysimeter were 12.9, 5.4, 3.1, and 1.2 ton/10a for clean tilled, corn, barley-soybean, and grass, respectively. The values of C to be utilized in Soil-Loss Equation was obtained as fallows; corn 0.47, upland rice 0.34, barley-soybean 0.18, barley-sweet potato 0.10, grass 0.08, barley-corn 0.34, wheat-soybean 0.25, barley-corn (Soybean) 0.42, barley-corn (sweet potato) 0.37, wheat-sesame 0.20, barley-red pepper 0.18, red pepper 0.32, sesame 0.28, potato-soybean 0.26, respectively. According to the comparisons between the actual soil loss measured by lysimeter and the soil loss predicted by the USLE, the smallest difference of both method came from barley-soybean while the largest came from corn.

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Desalinized Effect of Some Vegetable Crops in Salinized Soil (염류축적 토양에서 몇 가지 채소의 토양 염류 제염 효과)

  • Kim, Il-Seop;Kang, Ho-Min
    • Journal of Bio-Environment Control
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    • v.15 no.4
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    • pp.396-399
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    • 2006
  • This study was conducted to investigate the desalinizing effect of some vegetable crops (beet, crown daisy, kale, lettuce, spinach, sweet com, and tomato) in salinized soil. The soil was treated with highly concentrated nutrient solutions and the growth of these crops was compared and soil salinity was monitored. The plant height of lettuce and crown daisy inhibited severely in with EC $5dS{\cdot}m^{-1}$ salinized soil. Soil EC level was the lowest in soil where tomato was cultivated followed by corn and kale. The residual level of $NO_3$ was higher in soils used for cultivation of corn, tomato, and kale, that of K was higher in soils used for cultivation of corn, tomato, and beet, and That of $P_2O_5$ was higher in soils used for cultivation of corn and tomato. Although the desalinizing effect was greatest by tomato and corn after 60 days of cultivation. Quality of the these crops was low and the cultivation periods of these crops overlapped with that of the main crops. Kale, on the other hand showed less growth inhibition in salinized soil, greatest desalinating effect based on fresh weight. In addition this crop only needs 30 days of cultivation period. Therefore, kale was most efficient crop in desalinizing considering crop quality, a short cultivation period, and nonoverlapping cultivation time with the main crops.