• 제목/요약/키워드: nutritional compounds

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콩나물 제조중(製造中) 질소화합물(窒素化合物)의 변화(變化)와 그 영양학적(營養學的) 연구(硏究) -제육보(第六報). 단백질(蛋白質)의 전기영동양상변화(電氣泳動樣相變化)- (Changes of Nitrogen Compounds and Nutritional Evaluation of Soybean Sprout -Part VI. Changes in electrophoretic pattern of protein-)

  • 양차범;박상기;윤석권;박훈
    • Applied Biological Chemistry
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    • 제27권2호
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    • pp.129-134
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    • 1984
  • 콩나물을 온도별로 길러 생장과정별 단백질조성을 7.5% polyacryl amide gel 전기영동법으로 조사하고 조제표품단백질의 그것으로 동정하였다. 원료대두(大豆)에서는 주(主) band 5개(a,b,c,d 및 p)와 미소 band 10개가 나타났고 4일자자엽(日字子葉)에서는 8개의 주(主) band와 (o band포함)와 11개 미소 band로 최고 band수(數)를 보였다. 배축(胚軸)에서는 자엽(子葉)에서 발견(發見)되는 band들이 모두 나타났으나 분리(分離)가 선명치 못하였다. 생육이 경과함에 따라 자엽(子葉)에서는 a band가 먼저, b,c,d band가 다음으로 감소해 갔으며 미소 band o+p는 6일(日)까지 증가하다 그후 감소하였다. 배축(胚軸)에서는 모든 band가 계속 증가하였는데 미소 band와 b+c+d가 증가속도가 컸다. a band는 7S, b+c+d는 11S, o+p는 2S globulin으로 동정되었다. 생육온도가 높아짐에 따라 자엽(子葉)에서의 감소와 배축(胚軸)에서의 증가속도가 빨라졌으며 7S보다 11S가 촉진되었다.

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Stress, Nutrition, and Intestinal Immune Responses in Pigs - A Review

  • Lee, In Kyu;Kye, Yoon Chul;Kim, Girak;Kim, Han Wool;Gu, Min Jeong;Umboh, Johnny;Maaruf, Kartini;Kim, Sung Woo;Yun, Cheol-Heui
    • Asian-Australasian Journal of Animal Sciences
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    • 제29권8호
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    • pp.1075-1082
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    • 2016
  • Modern livestock production became highly intensive and large scaled to increase production efficiency. This production environment could add stressors affecting the health and growth of animals. Major stressors can include environment (air quality and temperature), nutrition, and infection. These stressors can reduce growth performance and alter immune systems at systemic and local levels including the gastrointestinal tract. Heat stress increases the permeability, oxidative stress, and inflammatory responses in the gut. Nutritional stress from fasting, antinutritional compounds, and toxins induces the leakage and destruction of the tight junction proteins in the gut. Fasting is shown to suppress pro-inflammatory cytokines, whereas deoxynivalenol increases the recruitment of intestinal pro-inflammatory cytokines and the level of lymphocytes in the gut. Pathogenic and viral infections such as Enterotoxigenic E. coli (ETEC) and porcine epidemic diarrhea virus can lead to loosening the intestinal epithelial barrier. On the other hand, supplementation of Lactobacillus or Saccharaomyces reduced infectious stress by ETEC. It was noted that major stressors altered the permeability of intestinal barriers and profiles of genes and proteins of pro-inflammatory cytokines and chemokines in mucosal system in pigs. However, it is not sufficient to fully explain the mechanism of the gut immune system in pigs under stress conditions. Correlation and interaction of gut and systemic immune system under major stressors should be better defined to overcome aforementioned obstacles.

Effect of inclusion of different levels of Leucaena silage on rumen microbial population and microbial protein synthesis in dairy steers fed on rice straw

  • Nguyen, Thien Truong Giang;Wanapat, Metha;Phesatcha, Kampanat;Kang, Sungchhang
    • Asian-Australasian Journal of Animal Sciences
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    • 제30권2호
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    • pp.181-186
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    • 2017
  • Objective: Leucaena leucocephala (Leucaena) is a perennial tropical legume that can be directly grazed or harvested and offered to ruminants as hay, silage, or fresh. However, Leucaena contain phenolic compounds, which are considered anti-nutritional factors as these may reduce intake, digestibility and thus animal performance. Therefore, the objective of this experiment was to determine effects of Leucaena silage (LS) feeding levels on rumen microbial populations, N-balance and microbial protein synthesis in dairy steers. Methods: Four, rumen fistulated dairy steers with initial weight of $167{\pm}12kg$ were randomly assigned to receive dietary treatments according to a $4{\times}4$ Latin square design. Treatments were as followings: T1 = untreated rice straw (RS; Control), T2 = 70% RS+30% LS, T3 = 40% RS+60% LS, and T4 = 100% LS. Dairy steers were fed rice straw and LS ad libitum and supplemented with concentrate at 0.2% of body weight/d. Results: Results revealed that the rumen microbial population, especially cellulolytic, proteolytic bacteria and fungal zoospores were enhanced in steers that received 60% of LS (p<0.05), whereas the amylolytic bacteria population was not affected by treatments (p>0.05). Protozoal population was linearly decreased with increasing level of LS (p<0.05). Moreover, N-balance and microbial protein synthesis were enhanced by LS feeding (p<0.05) and were the highest in 60% LS group. Conclusion: Based on this study, it could be concluded that replacement of RS with 60% LS significantly improved microbial population and microbial protein synthesis in diary steers.

Current situation and future trends for beef production in the United States of America - A review

  • Drouillard, James S.
    • Asian-Australasian Journal of Animal Sciences
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    • 제31권7호
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    • pp.1007-1016
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    • 2018
  • USA beef production is characterized by a diversity of climates, environmental conditions, animal phenotypes, management systems, and a multiplicity of nutritional inputs. The USA beef herd consists of more than 80 breeds of cattle and crosses thereof, and the industry is divided into distinct, but ofttimes overlapping sectors, including seedstock production, cow-calf production, stocker/backgrounding, and feedlot. Exception for male dairy calves, production is predominantly pastoral-based, with young stock spending relatively brief portions of their life in feedlots. The beef industry is very technology driven, utilizing reproductive management strategies, genetic improvement technologies, exogenous growth promoting compounds, vaccines, antibiotics, and feed processing strategies, focusing on improvements in efficiency and cost of production. Young steers and heifers are grain-based diets fed for an average of 5 months, mostly in feedlots of 1,000 head capacity or more, and typically are slaughtered at 15 to 28 months of age to produce tender, well-marbled beef. Per capita beef consumption is nearly 26 kg annually, over half of which is consumed in the form of ground products. Beef exports, which are increasingly important, consist primarily of high value cuts and variety meats, depending on destination. In recent years, adverse climatic conditions (i.e., draught), a shrinking agricultural workforce, emergence of food-borne pathogens, concerns over development of antimicrobial resistance, animal welfare/well-being, environmental impact, consumer perceptions of healthfulness of beef, consumer perceptions of food animal production practices, and alternative uses of traditional feed grains have become increasingly important with respect to their impact on both beef production and demand for beef products. Similarly, changing consumer demographics and globalization of beef markets have dictated changes in the types of products demanded by consumers of USA beef, both domestically and abroad. The industry is highly adaptive, however, and responds quickly to evolving economic signals.

가축사양에 있어서 감 과피와 감 과피탄닌 추출물의 이용 (Utilization of Persimmon Peel and Its Tannin Extracts for Animal Feeding)

  • 신영근;안병기;강창원
    • 한국가금학회:학술대회논문집
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    • 한국가금학회 2006년도 제23차 정기총회 및 학술발표회
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    • pp.28-42
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    • 2006
  • Tannins are phenolic compounds that precipitate proteins and composed of a very diverse group of oligomers and polymers. Tannins are potential biological antioxidants, which are widely believed to be an important line of defense against oxidative damage and may participate in the prevention of cancer and cardiovascular disease. Persimmon(Diospyros kaki L.) has been cultivated in East Asia and is a good source of nutritional antioxidant vitamins, carotenoids and tannins. In general persimmon peel was regarded as a waste matter, although based on recent studies, the peel contains more carotenoids and polyphenols than pulp. Several investigation conducted in experimental animals have reported that dietary persimmon fruit and peel effectively lowered the levels of plasma total cholesterol and LDL-cholesterol. We conducted experiments to investigate in vitro antioxidative activities of persimmon peel powder (PP) and its soluble tannin extract (ST) and their dietary effects on productive performances and physiological responses in poultry. The PP and ST exhibited in vitro antioxidative activity in SOD - like activity model. The yolk color and eggshell color were significantly improved by the addition of PP and ST into layer diets. The contents of total cholesterol, triacylglycerol and phospholipid of liver in the groups fed diets containing PP and ST tended to be reduce as compared with those of control. With adding of PP and ST, Haugh unit was increased after 7 and 14 days of storage. In conclusion, PP and ST can be used as valuable feed additives for reducing hepatic lipid contents without harmful effects on overall productive performances and physiological responses in laying hens.

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미더덕 추출물을 첨가한 조피볼락용 사료의 제조 (Preparation of Rockfish (Sebastes schlegelii) Feed Fortification with Mideodeok (Styela clava) Extracts)

  • ;윤보영;강석중;최영준;최병대
    • 한국수산과학회지
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    • 제41권6호
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    • pp.458-465
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    • 2008
  • The nutritional contribution of mideodeok extracts (ME) on rockfish (Sebastes schlegelii) feed and fish muscle was investigated. Different concentrations of the ME mixed with commercial diet were fed to mature rockfish for 8 weeks. The lipid and ash contents of the formulated diets were relatively similar to the control diet, while increasing the extract concentration increased the moisture content and decreased the protein contents. Major fatty acid components (C18:1n-9, 16:0, C20:5n-3, C22:6n-3) were of comparable quantity. High presence of C18:2n-6 was attributed to soybean oil incorporated in the diets, while the essential fatty acids were within limits (0.9-1.0%). The diet fortified with 6% ME produced the highest feed efficiency, with increased protein content in the muscle as well as lipid content for both muscle and liver. Hepato- and visceral-somatic index values were elevated with increasing ME concentration Muscle fatty acid contents were mostly C18:1n-9 and C16:0, with low absorption of C18:2n-6 in both the muscle and liver. Total highly unsaturated fatty acid content was significantly reduced in the fish muscle, but the values were higher for fish fed with a ME-fortified diet. An increasing trend for eicosapentaenoic acid and docosahexaenoic acid was also observed with increased ME fortification, with liver levels of these compounds remaining within range throughout the duration of the experiment.

Inhibitory Effects of Licochalcone A and Isoliquiritigenin on Monocyte Adhesion to TNF-$\alpha$-activated Endothelium

  • Kwon Hyang-Mi;Lim Soon Sung;Choi Yean-Jung;Jeong Yu-Jin;Kang Sang-Wook;Bae Ji-Young;Kang Young-Hee
    • Nutritional Sciences
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    • 제8권3호
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    • pp.153-158
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    • 2005
  • Numerous natural herbal compounds have been reported to inhibit adhesion and migration of leukocytes to the site of inflammation Licorice extracts, which have been widely used in traditional Chinese medicinal preparation, possess various pharmacological effects. Isoliquiritigenin, a biogenetic precursor of flavonoids with various pharmacological effects, is a natural pigment present in licorice. We attempted to explore whether licorice extracts and isoliquiritigenin mitigate monocyte adhesion to tumor necrosis factor-$\alpha$ (TNF-$\alpha$)-activated human umbilical vein endothelial cells (HUVEC). In addition, it was tested whether the inhibition of monocyte adhesion to the activated HUVEC accompanied a reduction in vascular cell adhesion molecule-l expression(VCAM-l). Dry-roasted licorice extracts in methylene chloride but not in ethanol markedly interfered with THP-l monocyte adhesion to INF-$\alpha$-activated endothelial cells. licochalcone A compound isolated from licorice extract in methylene chloride appeared to modestly inhibit the interaction of THP-l monocytes and activated endothelium. In addition, isoliquiritigenin abolished the monocyte adhesion with attenuating VCAM-l protein expression on HUVEC induced by INF-$\alpha$. These results demonstrated that non-polar components from dry-roasted licorice extracts containing licochalcone A as well as isoliquiritigenin were active in blocking monocyte adhesion to cytokine-activated endothelimn, which appeared to be mediated most likely through the inhibition of VCAM-l expression on HUVEC. Therefore, licorice may hamper initial inflammatory events on the vascular endothelium involving induction of endothelial cell adhesion molecules.

Solanum lycopersicum (tomato) ethanol extract elicits anti-inflammatory effects via the nuclear factor kappa B pathway and rescues mice from septic shock

  • Saba, Evelyn;Oh, Mi-Ju;Kwak, Dongmi;Roh, Seong-Soo;Kwon, Hyuk-Woo;Kim, Sung-Dae;Rhee, Man Hee
    • 대한수의학회지
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    • 제57권2호
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    • pp.97-104
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    • 2017
  • Solanum lycopersicum, commonly known as tomato, is widely used in raw, cooked, or liquid forms because it contains nutritional compounds that are beneficial for human health, including carotenoids, lycopene, ascorbic acid, vitamins, and minerals. The tomato is perhaps the most widely studied fruit, especially with respect to its cardioprotective effects. In this study, we aimed to identify the anti-inflammatory mechanisms by which the tomato elicits its anti-inflammatory properties. We treated murine macrophage RAW 264.7 cells with a tomato ethanol extract and performed various biochemical assays including nitric oxide inhibition, cell viability, RNA extraction, expression of pro-inflammatory mediators and cytokines, and immunoblotting, as well we assessed cell survival rates. Our results have shown for the first time that a tomato ethanol extract treatment can suppress nitric oxide production in a dose-dependent manner without cytotoxicity. Moreover, it inhibits the expression of pro-inflammatory mediators and cytokines and elicits its anti-inflammatory effects via the nuclear factor kappa-light-chain-enhancer of activated B cells ($NF-{\kappa}B$) and mitogen-activated protein kinase (MAPK) pathways. In addition, administration of tomato syrup potently rescued mice from septic shock induced by lipopolysaccharide injection. Collectively, our results elucidate details regarding the anti-inflammatory mechanisms of tomato.

Potential of Wood Vinegar in Enhancing Fruit Yield and Antioxidant Capacity in Tomato

  • Benzon, Hiyasmin Rose L.;Lee, Sang Chul
    • 한국자원식물학회지
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    • 제29권6호
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    • pp.704-711
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    • 2016
  • Tomatoes are considered as one of the main components of daily meals in most households. Thus, it is important to invest in studies enhancing their yield and nutritional value. The study evaluated the effect of wood vinegar (WV) on tomato under greenhouse conditions. Data on fruit number, fruit weight, and plant height were recorded. Total phenolic content (TPC) and antioxidant activity of tomato were determined using the Folin-Ciocalteu reagent and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay, respectively. FRR-CF+500x-WV significantly increased the fruit number (86.11%) and fruit weight (81.78%) over the control. Results were comparable to HRR-CF+250x-WV, indicating that conventional fertilizer and WV may have synergistic effect on each other. TPC and scavenging effect on DPPH radical was improved by 250x-WV application. The increase in the phenolic compounds can be attributed to WV as a direct source or as a factor triggering the plants to produce more secondary metabolites with the purpose of increasing natural defenses. The significant effect obtained by applying the full recommended rate of conventional fertilizer on the carotenoid content was due to the availability of the major nutrients needed by the plant. Correlation analysis showed that carotenoids have negative correlation with TPC and DPPH. However, TPC and DPPH showed that these are positively correlated with each other. Tomatoes are excellent source of antioxidants associated with the reduction of some human diseases and improved health. The results provided evidence that WV alone and/or its combination with conventional fertilizers has favorable effects on the quality of tomato.

콩나물 제조중(製造中) 질소화합물(窒素化合物)의 변화(變化)와 그 영양학적(營養學的) 연구(硏究) - 제3보(第三報). 유리(遊離)아미노산의 조성변화(組成變化) - (Changes of Nitrogen Compounds and Nutritional Evaluation of Soybean Sprout - Part III. Changes of free amino acid composition -)

  • 양차범
    • Applied Biological Chemistry
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    • 제24권2호
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    • pp.101-104
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    • 1981
  • 콩나물질소화합물(窒素化合物)의 영양학적(營養學的) 평가(評價)를 위하여 제조과정별(製造過程別) 유리(遊離)아미노산의 조성변화(組成變化)로 자엽(子葉) 및 배유부(胚軸部)에서 조사(調査)하였다. 대부분(大部分)의 유리(遊離)아미노산은 콩나물 제조중(製造中)점차 증가(增加)되었고 특히 배유부(胚軸部)에서 더 큰 증가(增加)를 보이었다. Arginine, proline al methionine은 제조과정중(製造過程中) 배유부(胚軸部)에서는 나타나지 않았다. 총(總)아미노산에 대(對)한 배유부(胚軸部)아미노산의 함함비(含含比)는 대두(大部)에서 0.11% 이었으나 8일(日) 콩나물에서 8.8%로서 콩나물이 길어 짐에 따라 증가(增加)되었다. 콩나물제조중(製造中) 유리(遊離)아미노산의 변화(變化)는 Asp>His>Val>Ile>Thr>Ser>Lys>Tyr>Phe>Leu>Ala>Gly>Pro>Arg>Glu>Met 의 순(順)으로 증가(增加)되었다. 4일(日)콩나물에서 유리(遊離)아미노산의 함량(含量)은 Asp>Ser>Val>His>Ala>Ile>Lys>Thr>Arg>Leu>Glu>Phe>Tyr>Gly>Cys>Met>Pro의 순(順)이였다.

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