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아스파라거스 주요 식물병원성 진균에 대한 식물추출물의 항진균 효과
김경수 ( Kim,K. S. ),박현후 ( H. H. Park ),박병성 ( B. S. Park ),김희영 ( H. Y. Kim ),한준희 ( J. H. Han ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2019 강원 농업생명환경연구 Vol.31 No.2
Ten plant extracts were used to select effective organic components against four major asparagus fungal diseases caused by Poitrasia circinans, Botrytis cinerea, Fusarium oxysporum, and Stemphylium vesicarium. Primary screening results using the disk diffusion method revealed antifungal effects of the extracts of cloves, mixed extracts of coptis chinesis and rhubarb, and grapefruit seed, bower actinidia, and purple coneflower. The extracts of cloves and grapefruit + Dahlia + chrysanthemum showed about 79.4% and 78.2% inhibition P. circinans growth at low concentrations of 500 ppm, respectively. Clove extracts were the most effective against B. cinerea and F. oxysporum at 500 ppm, with 86.2% and 59.7% reduction in growth, respectively. S. vesicarium was found to be effectively inhibited by about 80% at 500 ppm by all the four plant extracts. The grapefruit seed + bower actinidia + purple coneflower extract reduced P. circinans conidiation by 89.0% at 500 ppm. Clove extract showed an excellent reduction in F. oxysporum conidiation by 94.3% at 500 ppm. These results provide basic data for biologically controlling major fungal diseases of asparagus using plant extracts.
Effect of the extracts of fly maggot on the intestinal microbial growth in vitro
Park B. S.(박병성),Y. S. Ahn,H. K. Kim,S. O. Park 한국가금학회 2009 한국가금학회 정기총회 및 학술발표회 Vol.26 No.-
본 연구는 집파리 유충추출물의 브로일러 사료용 항생제 대체제로서 활용 가능성에 관한 기초자료를 수집하기 위하여 장내 미생물에 대한 Bifidogenic effect를 조사하였다. 실험Ⅰ의 in vitro 결과, 대조구와 비교할 때 탈지 파리유충 에탄올추출물 첨가구는 유익균 특히, Bifidobacterium bifidum 균주의 성장을 선택적으로 자극 및 유해균주(Clostridium perfringens, Staphylococcus aureus, Bacteroid fragillis)의 성장억제 효과가 뚜렷하였다. 실험 Ⅱ의 결과, 흰쥐에서 탈지 파리유충 에탄올 추출물의 경구ㆍ투여수준이 증가할수록 혈액 항체 IgG와 맹장의 Lactic acid bacteria 및 Bifidobacteria 총 균수는 유의적인 증가를 나타냈다(p<0.05). 이상의 결과는 탈지 파리유충 에탄올 추출물이 흰쥐의 생체 내 비피도박테리아의 선택적 성장촉진 효과를 갖는다는 것을 시사해준다. 따라서, 브로일러에 대한 사료용 항생제 대체물로서 파리유충 에탄올 추출물의 추가적인 검토가 필요할 것으로 생각한다.
회장에 (回腸) Cannula 를 설치한 돼지에서 아미노산의 생체내 이용성
박병성(B . S . Park),윤칠석(C . S . Yoon),이남형(N . H . Lee),지규만(K . M . Chee) 한국축산학회 1989 한국축산학회지 Vol.31 No.10
Bioavailability of dietary amino acids were measured in swine fitted with ileal T-cannula. Three swine with average body weight 50± 1.7kg were fed diets containing soybean meal or fish meal as the only N sources. After 5 days of preliminary feeding period, ileal digesta and anal excreta were collected for two consecutive days. N-free diet composed of glucose, corn oil, α-cellulose and vitamin-mineral premix were also fed to evlauate amount of endogenous amino acids. Amount of amino acids disappeared were generally larger in fecal excreta than in ileal digesta with a significant difference(p $lt;0.05) for fish meal. Apparent availabilities of amino acids in soybean meal and fish meal were 86.7 and 83.4% for ileal digesta, and 91.7 and 91.1% for feces, respectively. True availabilities of amino acids in soybean meal and fish meal were 89.5 and 86.5% for ileal diegesta, and 92.7 and 92.2% for fecal excreta, respectively. Amount of amino acids in soybean meal appeared better utilized than those in fish meal evaluated in ileal digesta. No such trend, however, was observed in fecal excreta. It appeared that in vivo bioavailability of dietary amino acids in swine should be studied with ileal digesta rather than fecal material.
식이중 일가불포화지방산이 흰쥐의 혈액 지질대사에 미치는 영향 2 . 혈액지방산 조성에 미치는 일가불포화지방산과 포화지방산의 반응표면분석
박병성(B . S . Park),이남형(N . H . Lee),지규만(K . M . Chee),이효원(H . W . Lee),이영철(Y . C . Rhee) 한국축산학회 1993 한국축산학회지 Vol.35 No.3
The response surface regression analysis was carried out to determine the dietary optimal response levels of monounsaturated fatty acids (MUFA) and saturated fatty acids (SFA), as a way to minimize the plasma SFA contents and to maximize the plasma MUFA contcnta or the ratios of MUFA to SFA in the rats. Contour plots and three dimentional plots were helpful to predict optimal response conditions, on plasma levels of MUFA and SFA or ratios of MUFA to SFA, which were influenced by dietary MLJFA and SFA levels. From results or response surface regression analysis, reasonable optimal response conditions to minimize plasma levels of SFA and to maximize plasma MUFA contents or ratios of MUFA to SFA could be obtained when MUFA consisted of 40% and SFA 35%, or 45%. of total dietary fatty acids.
식이중 1가불포화지방산이 흰쥐의 혈액지질대사에 미치는 영향 1 . 혈액콜레스테롤 수준에 관한 1가불포화지방산과 포화지방산의 반응표면 분석
박병성(B . S . Park),이남형(N . H . Lee),지규만(K . M . Chee),이영철(Y . C . Rhee) 한국축산학회 1993 한국축산학회지 Vol.35 No.2
The purpose of this study was to elucidate the effect of dietary MUFA on the plasma cholesterol level in the rats. Male Sprague Dawley rats were fed diets containg different 10 levels of MUFA (22-41%) and SFA (18-51%) for 3 weeks, respectively. Plasma TG, TC, LDL · VLDL-C and HDL-C contents were measured by an enzymatic bioanalysis kit. From the data obtained. the response surface regression analysis was carried out to estimate the pattern of change of plasma cholesterol level, which has influenced by MUFA and SFA as independent variables. Then, reasonable optimal response points were predicted in the minimum and maximum response conditions of plasma cholesterol levels. Plasma TG, TC, LDL · VLDL-C, HDL-C levels and ratios of HDL-C/TC showed their optimal response surfaces in saddle points. Reasonable optimal response levels which reach minimum values of plasma TC or maximum values of plasma HDL-C and ratios of HDL-C/TC could be obtained with diets containing 35% MUFA and 35% SFA. It appears that the increase in dietary MUFA does not necessarily reduce plasma choesterol levels. In this regards, the synergic effects between MUFA and SFA appear to be more important than the MUFA level itself.
이온화칼슘이 도계과정 중 도체표면의 미생물 교차오염에 미치는 영향
박병성(B.S. Park),진지영(J. Y. Jin) 한국유화학회 2016 한국응용과학기술학회지 Vol.33 No.4
The purpose of this study was to investigate the effects of ionized calcium treatment on total bacterial cross-contamination of chicken carcass surface in the slaughtering process. The growth of Escherichia coli was strongly inhibited in a medium prepared by using a 0.5% ionized calcium solution. The total bacterial cross-contamination of chicken carcass surface and the scalding water was significantly increased as the number of scalding was increased (p<0.05). The total bacterial cross-contamination of chicken carcass surface reached a plateau without a further increase as scalding was performed consecutively for 10 or more times. The total bacterial cross-contamination of the scalding water was significantly increased as the number of scalding was increased (p<0.05). The total bacterial cross-contamination of chicken carcass surface of the chickens raised on a floor type farm was significantly higher than that of the chickens raised in a battery cages (p<0.05). The total bacterial cross-contamination of chicken carcass surface of the chickens raised on a floor type farm was significantly lower in the 0.5% ionized calcium solution treatment group than in the control group (p<0.05).