• Title/Summary/Keyword: cereal

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Changes of Soil Physical Properties by Manured Sorghum Residues Incorporation

  • Jung, Ki-Yuol;Yun, Eul-Soo;Park, Chang-Young;Hwang, Jae-Bok;Choi, Young-Dae;Oh, In-Seok
    • Korean Journal of Soil Science and Fertilizer
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    • v.46 no.5
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    • pp.379-385
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    • 2013
  • Although sorghum residue production was estimated to be $8{\sim}10Mg\;ha^{-1}$, most sorghum straw was used to be burnt or removed after harvest. This experiment was conducted to evaluate the effect of the incorporation of manured sorghum residues on soil physical properties from 2010 to 2012 in the converted paddy field. Five treatment with 3 replication consisted of control, inorganic fertilizer (NPK), manured residues, sorghum stover and sawdust manure. The incorporation level of organic source was $10Mg\;ha^{-1}$ without inorganic fertilizer NPK. The investigated physical parameters were bulk density (BD), porosity, water stability aggregate (WSA), water infiltration rater (WIR), penetration resistance (PR) and soil water retention characteristics (WRC) with soil depth. The incorporation of manured sorghum residues improved WIR significantly over inorganic fertilizer (NPK), sorghum residues and sawdust manure. The BD by incorporating with manured residues on sorghum was reduced significantly with crop residue over plot of NPK and sawdust. Significant increase in WSA was observed with stubble incorporation alone or manured sorghum residues. Soil WRC were significantly enhanced with manured sorghum residue incorporated without NPK. The average PR at 0~15 cm was 0.54 MPa for manured sorghum residues. For sawdust manure plot it was 0.42 MPa, for Sawdust manure plot 0.39 MPa and for NPK plot 0.54 MPa.

Toxicity of 30 kGy Irradiated Cereal Powders for Three Months (30 kGy 감마선 조사된 곡류 분말의 아급성 독성평가)

  • Jeon, Young-Eun;Kim, Hye-Mi;Lee, Ju-Woon;Byun, Myung-Woo;Kang, Il-Jun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.10
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    • pp.1264-1270
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    • 2008
  • In order to evaluate their possible subacute toxicity, the male and female of SD rats were given to 30 kGy irradiated cereal powders for three months. During the experimental periods, appearance, behavior, mortality, body weight, organ weight, and food consumption of rats fed the 30 kGy cereal powders were not affected compared to the non-irradiated control. In urine analysis, histopathological examination, hematological as well as in serum biochemical findings, no significant differences were found between the rats administered with non-irradiated control and 30 kGy cereal powders for three months. These results indicate that cereal powders irradiated at 30 kGy did not show any toxic effects under these experimental conditions.

Antioxidant Activity and Total Phenolic Compounds in Grain Extracts of Wheat, Barley, and Oat

  • Seo, Yong-Weon;Bu, So-Young;Jeon, Woong-Bae;Kim, Dong-Sub;Heo, Hwa-Young
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.47 no.2
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    • pp.102-107
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    • 2002
  • Cereal grains are rich in phenolic compounds that give beneficial effect in human health. Although several research works have been reported on the effects of phytochemicals of plant origin, such as fruits, vegetables, few studies have examined the antioxidative effects of whole cereal grains. The objective of this study was to determine total antioxidant capacity of 80% ethanolic extracts of cereal grains by testing the ability of the extracts to inhibit UV -induced lipid peroxidation in vitro using linoleic acid in comparison to well-known antioxidant such as ascorbic acid and tannic acid. The total phenolic content of the cereal grain (80% ethanolic extracts) investigated in this study varied from 2.1 mg/g (wheat cv. Olgeurumil) to 10.4 mg/g (barely cv. Seodunchalbori). Highly positive relationship between total phenol compounds and antioxidant activity was found. When the antioxidant activities of all investigated extracts were measured with application of same quantity of phenol compounds, oat grain extracts showed similar antioxidant activity of barely cultivars. However, barely extract appeared as the most potent antioxidant activity of inhibition of UV -induced lipid peroxidation. This indicated that factors such as phenolic compound composition and their individual antioxidant activity could playa crucial role in the total antioxidant activity of cereal grains.

Variation of Tocopherol Composition and Morphology in Soybean [Glycine max (L.) Merr.] Germplasms

  • Kim, Young-Jin;Oh, Young-Jin;Cho, Sang-Kyun;Lee, Mi-Ja;Lee, Kwang-Won;Kim, Kee-Jong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.57 no.1
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    • pp.83-88
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    • 2012
  • In order to get information on tocopherol content and composition in fifty-six soybean germplasms were evaluated by HPLC. From the principle component analysis, the first three components accounted for 71.6% of the total variance of tocopherol content in the germplasms. Principal component 1 showed significant correlations with all the morphological markers except 100-seed weight. Soybean germplasms were divided into three groups by the first two principal components. The highest content of ${\alpha}$-tocopherol was $38.6{\mu}g$ per g in Tanner, while that of ${\gamma}$-tocopherol was $195.6{\mu}g$ in PI 91073. In case of ${\delta}$-tocopherol, IT 105622 showed the highest value as $29.8{\mu}g$. The contents of tocopherol were gradually increased from the late August to late September, which was 10 days before maturity, in Alchankong and PI 96322. The tocopherol content was higher in seeds from the plants sown early than those sown late. Total tocopherol contents of PI 96188, Geomjeongkong 2, and Suwon 183 grown in Gimje were higher than those grown in Iksan, but the difference was not observed in PI 96322. These results suggest that the contents of tocopherol in soybean were affected not only by the genotypes but also by environment.

Effects of Extruded Job s-tear Cereal on Lipid Metabolism in High Fat Fed Rats (압출성형된 율무 시리얼 식이가 고지방섭취 흰쥐의 지질대사에 미치는 영향)

  • 김병용;강병선;원혜진;함영태;김혜경
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.29 no.2
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    • pp.252-256
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    • 2000
  • Coronary heart disease (CHD) is caused by elevated blood lipids and the death rate from CHD is continuously increasing in recent years. In Korea, death rate from CHD is more than 30%. Recently, it has been reported that Job's tear decreaseds blood cholesterol level. However, most of the reports used Job's tear itself. Therefore, we have examined the effect of extruded Job's-tear cereal on blood and liver lipid levels in rats fed with a high fat diet for 5 weeks. The energy intake and body weight gain were higher in Job's tear cereal group (JFD) than in high fat fed group(HFD). Blood triglyceride concentration was significantly reduced in JFD group (p<0.05). And Atherogenic Index was decreased about 20% in JFD suggesting favorable effect of Job's-tear cereal on hyperlipidemia. Liver lipids levels were not affected by Job's-tear cereal.

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A Convergence Study on the Relationship between Cereal Intake Level and Food and Nutrients Intake of Chinese Middle-aged Women (중국 중년여성의 곡류 섭취수준과 식품 및 영양소 관련성에 대한 융합연구)

  • Park, Pil-Sook;Zhao, Han-Qing;Park, Mi-Yeon
    • Journal of the Korea Convergence Society
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    • v.10 no.2
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    • pp.113-124
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    • 2019
  • This is a convergence study to investigate the relationship between cereal intake level and food and nutrient intake in 218 Chinese middle aged women aged 40 to 65 years. Data were analyzed by ${\chi}^2$ test, ANOVA, correlation analysis and Jonckheere-Terpstra trend test using SPSS 22.0 program. The results of the study were as follows. The higher the level of cereal intake in the subjects, the lower were the rate of breakfast fasting (p for trend=0.000), overeating (p for trend=0.019), and eating out (p for trend=0.003). The intake of root and tuber crops(p for trend=0.008), meat(p for trend=0.043), pulses(p for trend=0.020), and light colored vegetables(p for trend=0.015) per 1,000 kcal of energy increased when the level of cereal intake was 6 to 9 units. Therefore, it is necessary to discuss and study for continuous education and improvement through the feedback so that the middle-aged women can take the cereal appropriately.

Prototype Development of a Small Combine for Harvesting Miscellaneous Cereal Crops and its Basic Performance

  • Lee, Beom Seob;Yoo, Soonam;Lee, Changhoon;Yun, Young Tae
    • Journal of Biosystems Engineering
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    • v.43 no.4
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    • pp.311-319
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    • 2018
  • Purpose: The aim of this study is to develop a small combine for harvesting miscellaneous cereal crops. Methods: A prototype small combine was designed and constructed. Its specifications and basic performance were investigated. Results: The prototype small combine for harvesting miscellaneous cereal crops was designed and constructed to reflect similar specifications as those of the conventional combine. The prototype small combine comprises a diesel engine with the rated power/speed of 22.0 kW/2,600 rpm, three-stage primary and two-stage speed range transmission shifts, and a double acting threshing part. The maximum travel speeds of the prototype combine are approximately 0.72 m/s, 2.50 m/s, 0.30 m/s at the low, high speed range shifts in the forward direction, and while traversing in the reverse direction, respectively. The minimum radius of turning was approximately 1.50 m. In a static lateral overturning test, the prototype combine overturned neither to the right nor to left on a $30^{\circ}$ slope. The results of an oilseed rape harvesting test included the maximum operating speed of 0.32 m/s, the grain loss ratio of approximately 9.0%, and the effective field capacity of approximately 10.3 a/h. Additionally, among the outputs in grain outlet, the whole grains, damage grains, and materials other than grain (MOG) ratios accounted for 97.4%, 0.0%, and 2.6%, respectively. Conclusions: The prototype small combine for harvesting miscellaneous cereal crops indicates good driving ability and stability. The results of the oilseed rape harvesting test reveal that the harvesting performance must be enhanced such that the separating and cleaning parts are more suitable for each type of crop, thus reducing grain loss and foreign substances among the outputs in grain outlet. An improved small prototype combine could be used effectively to mechanize the harvesting of miscellaneous cereal crops in small family farms or semi-mountainous areas.

Effect of Harvesting Time and Making Method on Feed Value and Fermentative Quality in Silage of Whole Crop Barley (수확시기와 조제방법이 청보리 사일리지의 사료가치 및 발효품질에 미치는 영향)

  • Song, Tae-Hwa;Park, Tae-Il;Han, Ouk-Kyu;Park, Hyong-Ho;Cho, Sang-Kyun;Oh, Young-Jin;Kang, Hyeon-Jong;Jang, Yun-Woo;Park, Kwang-Geun
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.58 no.4
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    • pp.362-366
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    • 2013
  • This experiment was conducted to obtain basic a information on feed value and fermentative quality of whole crop barley with different harvesting time and making method. As a result, in case of feed value, crude protein, NDF and ADF content were decreased with late harvest, but TDN was increased. In the silage, the results were similar and these patterns showed the same before and after the silage making. Thus, there was no significantly difference in bale and chopper. In case of fermentative quality, pH of the silages showed increasing with late harvesting time but the contents of organic acid did lower, and those tendencies were the same in both bale and chopper condition. But the lactic acid content were approximately 23 percent higher in chopped condition. In conclusion, ensiling at yellow ripe stage is better than other stages, chopped ensiling could improve fermentation quality.

Proper Transplanting Time for Considering Rice Quality at Reclaimed Saline Land in Gyehwado (간척지 고품질 품종의 품질 향상을 위한 적정 이앙시기 구명)

  • Kim, Young-Doo;Baek, Man-Gee;Lee, Jun-Hee;Ko, Jong-Cheol;Choi, Min-Kyu;Park, Hong-Kyu;Choi, Won-Young;Kim, Bo-Kyeong;Kim, Chung-Kon
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.54 no.4
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    • pp.339-345
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    • 2009
  • This experiment was carried out to identify the proper transplanting time at reclaimed saline land in the southwestern area of Korea from 2006 to 2007. The rice cultivars tested were Unkwangbyeo(Early maturing one), Gopumbyeo(Medium maturing one) and Samgwangbyeo, Sindongjinbyeo, Cheonghobyeo, Hopyeongbyeo(Mid-late maturing one). The results are summarized as follows. No. of spikelet per the unit area was lower at transplanting on May 20 and wasn't different in those of the other transplanting time. The ripened grain rate was high transplanted May 20 in Unkwangbyeo, but high transplanted from June 1 to June 20 in Mid-late maturing Cultivar. The yield of head rice was high transplanted June 10 and June 20 in Unkwangbyeo, Sindongjinbyeo, Hopyeongbyeo, but June 1 and June 20 in Samgwangbyeo, Cheonghobyeo. The protein content was high transplanted early in Unkwangbyeo, Samgwangbyeo, and late in Gopumbyeo, Sindongjinbyeo, Cheonghobyeo, but wasn't differ among transplanting time in Hopyeongbyeo. Considering the rice growth, the rice good quality, the yield of milled and head rice, the proper transplanting time was June 10 in Unkwangbyeo, Sindongjinbyeo, whereas was June 10 in Samgwangbyeo, Cheonghobyeo, Hopyeongbyeo.