• 제목/요약/키워드: dietary nitrogen

검색결과 714건 처리시간 0.024초

청국장 첨가 쌈장의 저장 중 이화학적·미생물학적 및 관능적 품질특성 변화 (Changes in Physicochemical, Microbiological and Sensory Quality Characteristics of Ssamjang containing Cheongkukjang during Storage)

  • 염은지;방선옥;김금숙
    • 동아시아식생활학회지
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    • 제25권3호
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    • pp.484-491
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    • 2015
  • This study investigated the quality variation characteristics of Ssamjang containing Cheongkukjang, in order to improve the degree of preference of Cheongkukjang. The amount of Cheongkukjang was set at 1% based on sensory evaluation. Ssamjang containing Cheongkukjang was stored at $37^{\circ}C$ for 13 weeks, after which quality variation characteristics were weekly. During storage for 13 weeks, physicochemical quality characteristics, moisture content, and pH of Ssamjang containing Cheongkukjang slightly decreased, whereas salt content did not change. Amino nitrogen content slightly increased by 1 week but decreased by 3 weeks and then increased by 5 weeks. For microbiology quality characteristics, viable cell counts and total cell counts of B. cereus were unchanged. For sensory quality characteristics, shape quality was poor after 13 weeks while mold, drying phenomenon, and swelling phenomenon were not observed. Therefore, physicochemical quality and microbiology quality of Ssamjang containing Cheongkukjang were unchanged during storage for 13 weeks, and the storage limit was determined to be 12 weeks according to sensory quality evaluation.

홍차 추출물 급여가 흰쥐의 간 기능 개선 및 항섬유화에 미치는 영향 (Effects of Water Extracts of Black Tea on Hepatic Functional Improvement and Anti-fibrosis in Rats)

  • 김현영
    • 동아시아식생활학회지
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    • 제23권1호
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    • pp.44-52
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    • 2013
  • This study investigated hepatic functional improvement and anti-fibrotic effects of water extracts of black tea. Male Sprague-Dawley rats were divided into four groups (normal, control, and two experimental subgroups: Ba, Bb) and observed for 3 weeks. Liver fibrosis in rats developed from carbon tetrachloride ($CCl_4$) administration, except for the normal group. Except for the normal and control group, the two experimental subgroups were fed water extracts of black tea. The food efficiency ratio significantly increased in the experimental group compared to the control group. The experimental group had a significantly lower liver weight compared to the control group. The ratio of liver weight to body weight was significantly lower in the experimental group than the control group. The levels of aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, blood urea nitrogen, and low-density lipoprotein-cholesterol in serum significantly decreased in the experimental group compared to the control group. The values of hydroxyproline and malondialdehyde in liver were even lower in the experimental group than the control group. In observations on liver histology, weaker inflammation and fibrosis were observed in the experimental group compared to the control group. In conclusion, water extracts of black tea help hepatic cells keep their functions, restraining and protecting the liver from impairments caused by $CCl_4$ administration, and can be effective as anti-fibrotic agents.

뽕잎, 감초, 솔잎 및 당귀분말이 흰쥐의 혈청조성에 미치는 영향 (Effects of Dietary Bong-ip(Morus alba L.), Gam-chei(Glycyrrhizae glabra), Sol-ip(Pinus densiflora) and Dang-gi(Angelica gigas) on Serum Composition in Rats)

  • 조영자;허원녕
    • 한국식생활문화학회지
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    • 제20권1호
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    • pp.123-129
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    • 2005
  • The purpose of this study was to investigate the effect of dietary Morus alba L.(Bong-ip, B), Glycyrrhizae glabra(Gam-chei, C), Pinus densiflora(Sol-lp, S) and Angelica gigas(Dang-gi, D)powder on serum composition in rats(Sprague-Dawley male rats, 100-110g). Serum TG(triglyceride, p<0.01), total cholesterol, glucose, total protein, albumin, GGT$({\gamma}-glutamyl$ transferase, p<0.05) were significantly increased D group than that of nomal and other groups, but UA(uric acid, p<0.05) was significantly decreased, and C group(p<0.05) was significantly increased. but C group of urine(p<0.05) was significantly decreased. Also, B and S groups(p<0.05) of BUN(blood urea nitrogen), S group(p<0.05) of ALP(alkaline phosphokinase, Band C(p<0.05) of CPK(creatinine phosphokinsae, p<0.05) were significantly increased. B, S and C groups were better than D group for lipid metabolism, and pretection to liver. Also, B and C groups of glucose were same as normal diet, so Morus alba L. was good food for lipid metabolism and hypoglycemic effect.

사료중 크릴 밀이 브로일러 병아리의 생산성과 단백질 및 에너지 이용성에 미치는 영향

  • 김재환;임진택;박인경;고태송
    • 한국가금학회:학술대회논문집
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    • 한국가금학회 2002년도 가을 학술발표논문집
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    • pp.90-91
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    • 2002
  • 사료 중 크릴밀이 브로일러의 생산성과 단백질 및 에너지 이용성에 미치는 영향을 조사하기 위하여 0일령 병아리(Avian종)에 기초사료와 기초사료중 대두박을 대치한 크릴밀 사료를 3주간 급여하여 2주째에 2일에 한번씩 LPS로 면역 자극하였다. 병아리의 일당 증체와 사료섭취량은 크릴사료의 영향은 없었으나 면역스트레스시 유의하게(p〈0.05) 낮아졌다. 간장과 비장무게는 면역스트레스시 급여사료 중 크릴 함량에 관계없이 유의하게 높았다. 질소밸런스는 면역스트레스시 유의하게 낮았으나 사료 중 크릴함량의 영향은 관찰되지 않았다. 사료 g당 대사에너지값은 면역스트레스시 높아지는 경향이 있었으나 면역스트레스가 없으면 낮아지는 경향이 있었다. 뇨산배설량은 면역스트레스시 크릴사료를 급여하면 높아지는 경향이 있었다.

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Hypolipidemic Activities of Dietary Pleurotus ostreatus in Hypercholesterolemic Rats

  • Alam, Nuhu;Yoon, Ki-Nam;Lee, Tae-Soo;Lee, U-Youn
    • Mycobiology
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    • 제39권1호
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    • pp.45-51
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    • 2011
  • This work was conducted to investigate dietary supplementation of oyster mushroom fruiting bodies on biochemical and histological changes in hyper and normocholesterolemic rats. Six-week old female Sprague-Dawley albino rats were divided into three groups of 10 rats each. Feeding a diet containing a 5% powder of Pleurotus ostreatus fruiting bodies to hypercholesterolemic rats reduced plasma total cholesterol, triglyceride, low-density lipoprotein (LDL), total lipid, phospholipids, and LDL/high-density lipoprotein ratio by 30.18, 52.75, 59.62, 34.15, 23.89, and 50%, respectively. Feeding oyster mushrooms also significantly reduced body weight in hypercholesterolemic rats. However, it had no adverse effects on plasma albumin, total bilirubin, direct bilirubin, creatinin, blood urea nitrogen, uric acid, glucose, total protein, calcium, sodium, potassium, chloride, inorganic phosphate, magnesium, or enzyme profiles. Feeding mushroom increased total lipid and cholesterol excretion in feces. The plasma lipoprotein fraction, separated by agarose gel electrophoresis, indicated that P. ostreatus significantly reduced plasma ${\beta}$ and pre-${\beta}$-lipoprotein but increased ${\alpha}$-lipoprotein. A histological study of hepatic cells by conventional hematoxylin-eosin and oil red O staining revealed normal findings for mushroom-fed hypercholesterolemic rats. These results suggest that a 5% P. ostreatus diet supplement provided health benefits by acting on the atherogenic lipid profile in hypercholesterolemic rats.

강원도 홍천군 농촌유아원 어린이의 영양실태조사 (Nutrition Survey of Young Children of Day Care Centers in the Rural Area of Hongcheon-gun, Kangwon Province)

  • 윤혜영
    • 대한가정학회지
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    • 제27권2호
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    • pp.53-63
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    • 1989
  • A untrition survey of early childhood was undertaken among 102 rural young children, aged 3 to 6, attending three day care centers of Hongcheon-gun, Kangwon province, in July of 1987, to investigate dietary and nutritional status. The results were obtained as follows: Mean values of height and arm circumference ranged from 96 to 97% of the KSRI's standards. However, mean value of weight met 91% of that standard. Mean value of hematocrit was 37.3±3.5%. According to the criterion established by the WHO, 3% of the subjects were proven to be anemic. Mean value of urinary urea nitrogen/creatinine ratio was 13.8±7.6; the higher the age lower the ratio was shown. Intake of energy and nutrients ranged from 63 to 88% of the RDAs. Carbohydrate provided 68% of total energy intake; protein accounted for 14%; fat provided 18%. Energy intake was divided among breakfast, lunch supper and snacks in a percentage ratio of 21:35:26:18. The survey clarified that the day care feeding largely supplemented the inadequate dietary intakes of these young children at home. Family factors, anthropometric measurements, biochemical results were positively correlated with nutrient intakes. Authors with this study can be contributed, as a reference, to develop the community nutrition programs as well as improving the quality of day care feeding.

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Urea Kinetics in Wethers Exposed to Different Ambient Temperatures at Three Dietary Levels of Crude Protein

  • Sun, Sang-Soo;Christopherson, Robert J.
    • Asian-Australasian Journal of Animal Sciences
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    • 제18권6호
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    • pp.795-801
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    • 2005
  • Eighteen Suffolk wether lambs (BW = 24 kg) were chronically exposed to temperatures of cold (2$^{\circ}C$) or warm (22$^{\circ}C$). The experimental design consisted of a 2${\times}$3 factorial with a single crossover of environment treatment. The sheep were closely shorn and were housed in individual metabolic crates in controlled environment rooms. Sheep consumed pelleted diets ad libitum, which consisted of mainly barley grain and brome grass, and diets contained 7, 11 or 14% crude protein (CP). Animals were catheterized via one jugular vein with a PVC catheter and received a single injection of 60-65 Ci of $^{14}$C]urea. Plasma urea-N (PUN), urinary urea (UU), and carbon specific radioactivity were measured. Urea metabolism was not affected by environment. Percent urea recycling and urea space clearance were highest (p<0.05) on the low nitrogen diet. Urea pool was increased (p<0.10) for the 14% CP diet. Both UU and PUN concentration were positively related (p<0.01) with diet CP content. Therefore, dietary CP content significantly influenced urea metabolism, however, cold exposure did not alter those parameters.

The Effect of Feeding Mannan-Oligosaccharides (Bio-MOS) on the Performance of Meat Chickens under Two Different Vaccination Programs

  • Shafey, T.M.;Al-Mufarej, S.;Shalaby, M.I.;Jarelnabi, A.J.
    • Asian-Australasian Journal of Animal Sciences
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    • 제14권4호
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    • pp.559-563
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    • 2001
  • The effects of feeding a mannan oligosaccharide (Bio-Mos) from 0 to 3 g/kg diet and vaccination program on 1- to 35-day performance (growth and feed efficiency), metabolizable energy, nitrogen utilization and carcass composition of meat chickens were investigated. A general vaccination program was used against IB, IBD and ND with half of the birds per diet receiving a booster dose of IB and ND vaccines at 12 days of age. Dietary supplementation of Bio-Mos (BM) did not influence body weight gain, feed efficiency and nutrient utilization. The highest dietary BM (3 versus 1.5 or 0 g/kg) increased carcass abdominal fat and reduced the proportion of drumstick in the carcass of meat chickens. The booster dose reduced the performance of birds. It was concluded that the addition of BM to the diet of chickens did not significantly influence the performance and nutrient utilization of meat chickens.

말차(抹茶) 첨가에 따른 증편의 품질 특성 (Effect of Mal-Cha (Powdered Green Tea) on the Quality of Jeung-Pyun)

  • 정수영;유현희;김금숙;신미경
    • 동아시아식생활학회지
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    • 제15권6호
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    • pp.766-772
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    • 2005
  • The purpose of this study is to find out the optimal mixing ratios of Mal-Cha for the preparation of Jeung-Pyun through sensory and mechanical tests. The proximate composition of Mal-Cha were $5.46\pm0.15\%$ of moisture, $4.43\pm0.11\%$ of total nitrogen, $7.52\pm0.21\%$ of crude lipid, $8.74\%$ of crude fiber, $8.51\pm0.09\%$ of ash. Overall quality of Jeung-Pyun with $1.5\%$ Mal-Cha was the worst compare with 0, 0.5 and $1.0\%$ ones(p<0.05). Especially, $1.0\%$ Mal-Cha Jeung-Pyun showed the best overall quality. But the sweetness, sourness, flavor, hardness, and moistnes were not significantly different among all the treatments. Acceptabilities of 0.5 and $1.0\%$ Mal-Cha Jeung-Pyuns were not significantly different from that of the control in their sensory and mechanical qualities. Total color difference increased with the amount of Mal-Cha significantly(p<0.001).

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발효쑥의 생리활성 및 흰쥐의 지질대사에 미치는 영향 (Biological Activities of Fermented Mugworts and Their Effects on Lipid Metabolism in Rats)

  • 정순모;송효남
    • 동아시아식생활학회지
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    • 제19권3호
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    • pp.356-362
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    • 2009
  • The objective of this study was to investigate the biological activities of fermented mugworts and their effects on the lipid metabolism in hyperlipidemia-induced rats. The proximate compositions of two kinds of mugwort, Artemisia capillaris Thumberg and Artemisiae asiaticae Nakai, were compared before and after fermentation. In both types of mugwort crude protein and amino nitrogen contents markedly increased with fermentation. Thrombolytic activity determined from the size of the clear zone on a fibrin plate was higher for the Artemisiae asiaticae Nakai, especially in the fermented sample. Antioxidative activity according to DPPH(1,1-diphenyl-2-picrylhydrazyl) radical scavenging effects was higher for Artemisia capillaris Thumberg but no significant differences were found between the samples after fermentation. The body weights of hyperlipidemia-induced rats that were fed the mugworts for 4 weeks were lower than those of the control group. In all the mugwort-fed rats serum total cholesterol and LDL-cholesterol levels remarkably decreased. Furthermore the fermented mugworts were found to be more effective at decreasing triglyceride (TG) levels. It is also noteworthy that the highest HDL-cholesterol levels were observed in the rats treated with the fermented Artemisiae asiaticae Nakai. And fatty liver weights were higher in the rats fed Artemisia capillaris Thumberg. In conclusion the feeding of fermented Artemisiae asiaticae Nakai was effective for increasing thrombolytic activity and HDL-cholesterol levels as well as reducing TG levels in rats.

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