• Korean Journal of Microbiology
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• v.28 no.3
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• pp.236-242
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• 1990

To develop the new strains of microorganisms having the degradative ability for various aromatic hydrocarbons, the hybrid plasmid pKG2 having the 2,4-Dichlorophenoxyacetic acid(2,4-D) degradative genes, the hybrid plasmid pKG3 containg the naphthalene degradative genes and TOL plasmid were introduced into Pseudomonas putida KUD 12 and P. putida KUP 10 by transformation or conjugation which originally have the degradative ability of the synthetic surfactants and phthalate esters, respectively. From P. putida KUD12, the new strains of P. putida KUD101(pKG2), KUD102(pKG3), KUD103(TOL), and KUD202(pKG3, TOL) were obtained, and KUD106(pKG2), KUD107(pKG3), KUD108(TOL) were originated from the P.putida KUP10. The degradative abilities in P. putida KUD101, KUD102 and KUD107 were similar with those of the original strains. The P. putida KUD103, KUD106 and KUD202 had a little lower and P. putida KUD108 had a better degradative abilitie than those of the original ones. In the case of mixed cultures, the mixed culture of KUD107 and KUD108 had a better degradative abilities than those of the other mixed cultures.

• Journal of the Korea Organic Resources Recycling Association
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• v.17 no.2
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• pp.101-111
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• 2009

In this study, the physico-chemical characteristics of municipal solid waste (MWS) which was treated in gangwon area were investigated. It is necessary to measure the characteristics of municipal solid waste for build a waste treatment and RDF facility and for data-base and total managing of the landfill. It was found that the average density of solid wastes is in the range of $101.8{\sim}199.8kg/m^3$. This MSW was composed of 30.7% of food wastes, 36.3% of papers, 15.8% of plastics & vinyls, 1.9% of textiles, 3.2% of wood and 1.5% of rubber & leathers respectively. Most of MSW are composed of food, paper and plastic waste and the combustible waste is more than 90%. For three components, moisture is 44.6%, combustible component is 47.7% and ash is 7.7% respectively. The chemical elements are carbon, oxygen, and hydrogen on the dry basis of wastes. The low heating value of the MSW measured by calorimeter was obtained as 2,631 kcal/kg, and the high heating value of the MSW was obtained as 3,310 kcal/kg.

• Journal of The Korean Society of Grassland and Forage Science
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• v.26 no.2
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• pp.91-96
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• 2006

This experiment was carried out in order to examine the winterhardiness, heading date, fresh and dry matter yeild of Festulolium braunii, a hybrid of Festuca pratensis and Lolium multiflum, which is newly introduced in Korea. This experiment was performed at National Livestock Research Institute in Suwon and Namwon from September 2004 to July 2005. The results are as follows. 'Fleurial', 'Boxer', and 'Perun' showed stronger winterhardiness than 'Hwasan 101', which is one of the strongest in the winterhardiness hybrids. Therefore, we do not see there is any problem in winterhardiness when these hybrids are cultivated in Korea. The hybrids are turned out to be mid and late maturing hybrid. The average heading dates of the three hybrids were May 25 in Namwon and May 27 in Suwon. These dates are lower($1{\sim}3$ days) than that of Hwasan 101. They showed $91{\sim}96cm$ in leaf length at 1st cutting times which are comparatively long. This experiment also disclosed that their lodging and regrowth are strong and excellent. We also found out that there are significant difference between regions and hybrids in the total fresh yield per ha. The average fresh yield of Suwon was 83,222 kg/ha and that of Namwon was 69,139 kg/ha. We could not see any difference in the dry matter yield affected by region, however, there were significant difference in hybrids(p<0.05). The crude protein contents of the three hybrids indicated very high figures. the crude protein cotents of Perun, Fleurial and Boxer are 18.0% 17.4% and 16.7% respectively. However the ADF (Acid Detergent Fiber) shows $28.1{\sim}29.2%$ which is less contents than 33.2% of Hwasan 101. We found out from this experiment that these three hybrids have excellent feed quality because the NDF (Neutral Detergent Fiber) is decreased by $7{\sim}3.8%$ comparing that the NDF of Hwasan 101 is 58.3%. Also each hybrids contains more crude fat by 1%, a little more chemical composition and less ash contents. Thus we can tern that chemical composition contents of these hybrids are also fittable.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.36 no.1
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• pp.1-6
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• 1991

A field experiment was conducted to find out the effects of nitrogen and potassium rates on the chemical constituents and physical properties of burley tobacco (1988； Burley 21. 1989； Burley 21 and KB 101) during successive two years. KB 101 was low in total nitrogen and total alkaloid contents and potassium/total nitrogen ratio of cured leaf. but high in the lightness, red and yellow color and filling power, comparing to Burley 21. The increasing rates of total nitrogen and total alkaloid contents were larger when nitrogen applied to 22.75kg/10a, but they were smaller when nitrogen applied above 22.75 kg/l0a. The potassium content, potassium/total nitrogen ratio, filling power and shatter resistance index of cured leaf were decreased by nitrogen fertilizer addition. The potassium content and shatter resistance index were increased by potassium fertilizer addition. The effect of nitrogen rate on the potassium/total nitrogen ratio of cured leaf was larger than the effect of potassium rate. When the nitrogen fertilizer being applied above 22.75 kg/l0a, there were no advantageous effects on the chemical and physical properties. It is considered to be sufficient that the potassium application is about 35.0 kg/l0a.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.35 no.6
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• pp.497-503
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• 1990

A field experiment was conducted to find out the effects of nitrogen and potassium rates on the growing characters, yield and quality of burley tobacco (1988 : Burley 21, 1989: Burley 21 and KB101) during successive two years. The effect of added nitrogen fertilizer on the growth characters at topping stage was different according to growing years. Potassium rate had no effect on the growth characters. The effects of nitrogen and potassium rates on the nitrogen conteut of leaf during growth stage were great, while the effects on the potassium content were not large, relatively. As compared with Burley 21, KB101 showed high yield, and the productivity in nitrogen-reduced condition was high. The yield and quality were increased when nitrogen applied to 22.75kg/l0a, but the yield was not increased and the quality was decreased when nitrogen applied above 22.75kg/l0a. Neither potassium rate nor potassium/nitrogen application ratio had effects on the yield and quality, while the quality was somewhat decreased when potassium/nitrogen ratio was small. When the nitrogen fertilizer being applied above 22.75kg/l0a, there were no advantageous effects on the yield and quality, It is sufficient that the potassium application is about 35.0kg/l0a, and the scheme of reducing of potassium rate may be considerable.

• Korean Journal of Agricultural Science
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• v.36 no.2
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• pp.129-134
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• 2009

Objectives of this study was to find the effect on two different nitrogen levels about agricultural characteristics of CNU rice lines developed at Crop Genetics and Breeding Laboratory, Chungnam Nat'l Univ.. Materials used were two black and one white glutinous rice lines, which were transplanted by hand with $30{\times}15cm$ at CNU paddy field on May 23, 2009. These lines was designed with two replication by two nitrogen levels as 7kg and 9kg per 10a. As the result; Culm length of all lines used were higher at 7kg than 9kg per 10a while panicle length was longer at 9kg nitrogen level. Tillers per plant of CNU 08-01 and CNU 08-02 lines except CNU 08-101 showed highly at 9kg level, but that of other leading varieties were not constant trends in spite of increasing nitrogen. Ripening ratio of CNU 08-01 and 08-02 lines were higher at 7kg but CNU 08-101 line was higher at 9kg. 1,000 grain weight and unhulled rice yield per 20 plants in all CNU lines were highly appeared at 9kg levels per 10a.

• Preventive Nutrition and Food Science
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• v.14 no.2
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• pp.123-128
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• 2009

This study was conducted to evaluate the weight reduction effect of yeast hydrolysate-SR101. Thirty female college students participated in a 6 week weight control program. All subjects were randomly assigned to either the placebo group, YH-SR101 (yeast hydrolysate-SR101) group, or eX diet (product of yeast hydrolysate-SR101) group. The mean energy intake of the placebo group was 1445.2${\pm}$364.0 kcal (carbohydrate: 60.1%, protein: 25.6%, fat: 14.3%), while those of the YH-SR101 and the eX diet group were 1505.6${\pm}$296.2 kcal (carbohydrate: 60.5%, protein: 22.2%, fat: 14.8%) and 1353.8${\pm}$326.3 kcal (carbohydrate: 63.2%, protein: 20.9%, fat: 15.9%), respectively. The placebo group lost 0.19${\pm}$1.14 kg of body weight, while the treatment groups (YH-SR101 and eX diet) lost 1.13${\pm}$0.83 and 1.54${\pm}$0.74 kg of body weight, respectively. There were significant differences in the decrease in body weight between the placebo and the treatment group (p<0.05). There were also significant differences in the decrease in fat mass between the placebo and treatment group (p<0.05). Furthermore, the BMI of the YH-SR101 and the eX diet groups also differed significantly before and after the diet program (p<0.05). Additionally, the BMI and waist size reduction of the treatment groups (YH-SR101 and eX diet group) differed significantly when compared to the placebo (p<0.05). The reduction of the resting metabolic rate (RMR) blood glucose, total-cholesterol, HDL-cholesterol, LDL-cholesterol and triglyceride did not differ significantly among groups. Taken together, these findings indicate that consumption of yeast hydrolysate-SR101 and eX Diet may lead to decreased body weight and fat.

• Journal of The Korean Society of Grassland and Forage Science
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• v.30 no.2
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• pp.97-102
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• 2010

This experiment was carried out to know the possibility for cultivation of Italian ryegrass (Lolium multiflorum Lam.) by spring seeding in Grassland and Forages Division, National Institute of Animal Science, RDA, Cheonan from 2007 to 2008. In spring seeding cultivation, heading date of early maturity variety, 'Kospeed', was on 14 May, but late maturity variety, 'Hwasan 101', was not heading up to harvesting date. Dry matter yield of 'Kospeed' (6,819 kg/ha) was higher than that of 'Hwasan 101' (4,409 kg/ha) by 55%. Crude protein (CP) and total digestible nutrients(TDN) of 'Kospeed' were 15.6% and 62.1%, respectively and that of 'Hwasan 101' were 20.3%, and 67.5%. In these result, when cultivation of Italian ryegrass by spring seeding, selection of early maturity variety have a decided advantage for high productivity.

• The Korea Swine Journal
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• v.26 no.5 s.297
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• pp.100-101
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• 2004

• The Korea Swine Journal
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• v.22 no.4 s.248
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• pp.100-101
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• 2000