• Title/Summary/Keyword: white egg

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Improvement of Functional Properties of Ovotransferrin by Phosphorylation through Dry-heating in the Presence of Pyrophosphate

  • Hayashi, Yoko;Li, Can-Peng;Enomoto, Hirofumi;Ibrahim, Hisham R.;Sugimoto, Yasushi;Aoki, Takayoshi
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.4
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    • pp.596-602
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    • 2008
  • Ovotransferrin (OTf) was phosphorylated by dry-heating in the presence of pyrophosphate at pH 4.0 and $85^{\circ}C$ for 1 and 5 d, and the functional properties of phosphorylated OTf (PP-OTf) were investigated. The phosphorus content of OTf increased to 0.91% as a result of phosphorylation and the electrophoretic mobility of PP-OTf also increased. Although the solubility of dry-heated OTf slightly decreased, the decrease was reduced by phosphorylation. The stability against heat-induced insolubilization of OTf was somewhat improved by phosphorylation, but more than 70% of PP-OTf was insolubilized when it was heated at $70^{\circ}C$ for 10 min at pH 7.0. However, heat-induced insolubilization of PP-OTf was reduced when it was heated in the presence of phosphorylated ovalbumin. This may explain the excellent stability of phosphorylated egg white protein against heat-induced insolubilization which was reported previously. The emulsifying property of OTf was also somewhat improved by phosphorylation. The calcium phosphate-solubilizing ability of PP-OTf was enhanced. Although the degree of phosphorylation of OTf by dry-heating in the presence of pyrophosphate was similar to that of ovalbumin, the improvement of properties of PP-OTf was considerably different from those of phosphorylated ovalbumin.

Common features of atopic dermatitis with hypoproteinemia

  • Jo, So Yoon;Lee, Chan-Ho;Jung, Woo-Jin;Kim, Sung-Won;Hwang, Yoon-Ha
    • Clinical and Experimental Pediatrics
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    • v.61 no.11
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    • pp.348-354
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    • 2018
  • Purpose: The purpose of this study was to identify the causes, symptoms, and complications of hypoproteinemia to prevent hypoproteinemia and provide appropriate treatment to children with atopic dermatitis. Methods: Children diagnosed with atopic dermatitis with hypoproteinemia and/or hypoalbuminemia were retrospectively reviewed. The patients' medical records, including family history, weight, symptoms, treatment, complications, and laboratory test results for allergies and skin cultures, were examined. Results: Twenty-six patients (24 boys) were enrolled. Seven cases had growth retardation; 7, keratoconjunctivitis; 6, aural discharges; 5, eczema herpeticum; 4, gastrointestinal tract symptoms; and 2, developmental delays. In 21 cases, topical steroids were not used. According to the blood test results, the median values of each parameter were elevated: total IgE, 1,864 U/mL; egg white-specific IgE, $76.5kU_A/L$; milk IgE, $20.5kU_A/L$; peanut IgE, $30kU_A/L$; eosinophil count, $5,810/{\mu}L$; eosinophil cationic protein, $93.45{\mu}g/L$; and platelet count, $666.5{\times}10^3/{\mu}L$. Serum albumin and total protein levels decreased to 2.7 g/dL and 4.25 g/dL, respectively. Regarding electrolyte abnormality, 10 patients had hyponatremia, and 12, hyperkalemia. Systemic antibiotics were used to treat all cases, and an antiviral agent was used in 12 patients. Electrolyte correction was performed in 8 patients. Conclusion: Hypoproteinemia accompanying atopic dermatitis is common in infants younger than 1 year and may occur because of topical steroid treatment continuously being declined or because of eczema herpeticum. It may be accompanied by growth retardation, keratoconjunctivitis, aural discharge, and eczema herpeticum and can be managed through skin care and topical steroid application without intravenous albumin infusion.

Ionizing Radiation Effect on the Carbohydrate Moiety of Chicken Ovomucoid (계란 ovomucoid의 탄수화물 부분에 미치는 이온화방사선의 영향)

  • Lee, Young-Keun;Kim, Jin-Kyu;Kim, Jae-Sung;Song, Hi-Sup;Charoen, Saovapong;Amornraksa, Kitti
    • Journal of Radiation Protection and Research
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    • v.22 no.1
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    • pp.23-27
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    • 1997
  • Radiation effects on carbohydrate moiety of chicken ovomucoid, a protease inhibitor as a typical allergenic glycoprotein of egg white, was observed. The trypsin inhibitory activity of chicken ovomucoid decreased exponentially and the inactivation was more significant irradiated in $N_2$ than in $O_2$. From the protein blotting, radiation caused protein degradation in $O_2$ and protein aggregation also in $N_2$. The patterns of carbohydrate blotting were also similar with that of protein blotting. Sugar chains in low molecular weight fraction (MW<5,000) were released by radiation and those in $O_2$ were higher than in $N_2$. From the HPLC patterns of the degradation of sugar chains, all peaks of oligosaccharides have the tendency to decrease with the increase of radiation dose and more remarkable in $O_2$ than in $N_2$. These results suggest that ionising radiation could cause the overall conformational changes of ovomucoid by the degradation and release of oligosaccharides.

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A STUDY ON THE EFFECTS OF TEXTURE OF FOOD ON CHEWING MOVEMENTS AND EMG OF MASTICATORY MUSCLE (식품의 물성이 제작근의 활성도 및 저작 양태에 미치는 영향)

  • Cho, Lee-Ra;Kim, Kwang-Nam;Chang, Ik-Tae;Heo, Seong-Joo
    • The Journal of Korean Academy of Prosthodontics
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    • v.36 no.3
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    • pp.427-452
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    • 1998
  • To elucidate the effects of food texture such as hardness, cohesiveness, adhesiveness on mastication procedure, the electromyographic activity (EMG) of the masticatory muscles and the chewing movements were analyzed in eighteen young subjects during ordinary chewing. Seven different foods were selected by sensory texture profiling and mechanical test with texturometer; egg white, sausage, pizza cheese, yang-geng, biscuit, peanut and almond. The indexes of jaw movements used were the chewing number, chewing time, maximum opening, average opening, closing velocity and opening velocity. The EMG indexes analyzed were maximum and average integrated amplitude of the anterior temporal and masseter muscles. The results obtained were as follows. 1. The chewing time and chewing number, mandibular displacement and mandibular movement velocity were not changed by the hardness, cohesiveness and adhesiveness of the food (p>0.05). 2. The harder food materials showed a higher amplitude of the anterior temporal muscle integrated EMGs than the softer ones (p<0.05). 3. The maximum and average integrated EMGs of the masseter muscle increased with the increase of hardness of the food (p<0.05). 4. The integrated EMGs of preferred side and non-preferred side masticatory muscles increased with the increase of hardness of the food (p<0.05). 5. The adhesiveness and cohesiveness of the food were not the determining factor to the integrated EMGs of masticatory muscles (p<0.05).

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The Effects of Oyo-Tang(五拗湯) on the Respiratory Patterns and Tracheal Tissues in Allergic Asthma (오요탕(五拗湯)이 알레르기 천식(喘息)의 호흡(呼吸) 양상(樣相)과 기관(氣管) 조직(組織)에 미치는 영향(影響))

  • Kwon, Soon-Ho;Jung, Hee-Jae;Jung, Sung-Ki;Rhee, Hyung-Koo
    • The Journal of Korean Medicine
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    • v.20 no.2
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    • pp.98-107
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    • 1999
  • This study aimed to find out Oyo-Tang's effects on allergic asthma using the Egg-White Implant(EWI) method model recommended by Siqueira et al. Oyo-Tang has widely been prescribed and used in Oriental Medicine for controlling and curing of cough, nasal obstruction, pharyngeal pain and hoarseness. Previous studies have demonstrated that Oyo-Tang has analgesic, sedative, anticonvulsive, antitussive and antihistamine effects. But it was uncertain whether Oyo-Tang could inhibit the allergic reactions, to alleviate the symptoms of allergic asthma. With such aim. the respiratory patterns and eosinophil infiltration in the tracheal mucosa of rats with experimentally induced allergic asthma (using EWI method) were mainly observed. The results are as follows: 1. Oyo-Tang decreased the number of poor respiration with respect to control group (P<0.05) 2. Oyo-Tang decreased the number of eosinophils infiltrated in tracheal mucosa with respect control group (P<0.05). The above results demonstrate that Oyo-Tang has the inhibitory effects on the process allergic asthma and suggest that it could be used in relieving patients of the symptoms caused allergic asthma.

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Studies on the Genetic Characters of Korean Native Fowl (한국 재래닭의 유전적 특성에 관한 조사 연구)

  • 정선부;정익정;박응우;여정수
    • Korean Journal of Poultry Science
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    • v.16 no.4
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    • pp.209-217
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    • 1989
  • This study was carried out to obtain the information on the genetic characters of Korean native fowls. The data for this study was collected from fowls located at the Gyunggi, Chunscheong, Yeongnam and Jeju area from March, 1989 to November, 1989. The morphology, genetic characters and economic traits of fowls were investigated. Followings are the major results obtained from this study. 1. The morphology and genetic characters of Korean native fowls are similar to those of brown Leghorn, 2. Colored fowls outnumbered white fowls by 402 to 38 in feather color, and wild type fowls outnumbered black fowls by 317 to 38 in feather pattern. 3. For morphology of chromosomes, chromosome size and shape of Korean native fowls were similar to those of other breeds. 4. Body weights of male was 1.2-1.6kg, and of female 1.5-1.9 kg. Hen-housed egg production was 80-120 eggs.

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A Study of Grand Sauces (그랜드 소스에 관한 연구)

  • 정청송
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.7
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    • pp.61-85
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    • 1997
  • 1. Background of the Study Old Testament time made some food and Sauces. Cosher food is God's Covernant. Ancient Greek cooking and Roman cooking had been Sauces. Much of what we know of Greek gastronomy is found in the writting of Archestrate, cooking is sigle and direct, Sauces are Cumin, Vinegar, Roman culinary comes from mareus, first century A.D. many of the ingredients used in apicius's recipes are seen againg in midival Eurpean cooking. ① Cumin Sauce for Oyster ② Sauce for grounds, puree, and cardoons. 2. Culinary in the Middle ages Liaquid Flavorings their Sauces tested Verjuice and Vinegar are most often called for when a Liquid is needed, Spices and Liaisons. 3. Cookery the eighteenth century The eighteen the century brought about greated Systemization of basics, coulis, Jus, and bouillons. 4. The twentieth century culinary Careme were Systematized and recorded by Auguste Escoffier in his Guide Culinare Standardized. 5. Grand Sauces are Considered one of the greatest test of a Chef's Skill, Whether they are classics, Such as Sauce, Supreme, demand the highest technical expertise. The Successful paring of Sauce with a good demonstrates an understanding of the food and an ability to judge. Sauce making allows the cook more freedom to work flavors, textures, Aromatics, Tasty, and color than any other area of cooking. A Sauce is never eaten alone, function, balance, the direct flavor, Sauces presents the basic Sauce-making techniques that have been used in the past and that are popular today, Sauces are organized around the primeifhes of classic world cooking 6. Grand Sauces are 1) Brown Sauces are 1) Brown Sauce ① Demiglace ②Espagnole ③ Fond de veau 2) Bechamel Sauce 3) Velote Sauce 4) Tomato Sauce and 5) Hollandaise Sauce ① Brown Sauce made with Stock, Roux, Tomato Paste and Mirepoix. ② Bechamel Sauce made with Roux and Milk. ③ Veloute Sauce made with Roux and White Stock. ④ Tomato Sauce made with Tomto, Vegetable and Stock. ⑤ Hollandaise Sauce made with Egg and Butter.

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Effects of Isoleucine Supplementation of a Low Protein, Corn-Soybean Meal Diet on the Performance and Immune Function of Weanling Pigs

  • Zheng, C.T.;Li, D.F.;Qiao, S.Y.;Gong, L.M.;Zhang, D.F.;Thacker, P.;Han, In K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.1
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    • pp.70-76
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    • 2001
  • This experiment was conducted to investigate the effects of crystalline isoleucine supplementation of a low protein, corn-soybean meal diet on the performance and immune function of weanling pigs. Forty-five crossbred ($Duroc{\times}Landrace{\times}Large\;White$) piglets, weighing an average of $11.00{\pm}0.07kg$, were assigned to either a control diet containing 20% crude protein (0.64% isoleucine), a 16% crude protein diet without isoleucine supplementation (0.41% isoleucine) or a 16% crude protein diet supplemented with isoleucine (0.64% isoleucine). Reducing the crude protein content of the diet from 20 to 16% significantly (p<0.05) reduced both average daily gain and feed intake. Feed conversion also tended (p=0.07) to be poorer for a low protein diet without isoleucine supplementation. Isoleucine supplementation of the 16% crude protein diet increased both gain and feed intake to a level similar to that obtained by pigs fed the 20% crude protein diet (p>0.05). Blood urea nitrogen, serum total protein and serum globulin were significantly (p<0.05) higher for pigs fed the unsupplemented 16% crude protein diet than for pigs fed the isoleucine-supplemented diet or the control. Egg albumin antibody titre decreased significantly (p<0.05) in pigs fed the diet with isoleucine supplementation, whereas the antibody titre of pigs fed the low protein and low isoleucine diet was similar to that of pigs fed the diet containing 20% crude protein and 0.64% isoleucine. It was suggested that crystalline isoleucine supplementation of a low protein and low isoleucine diet improved pig performance but suppressed humoral immune function.

Study on the Hatching Characteristics and Diet of the Stick Insect, Baculum elongatum (Phasmida: Phasmatidae) for Artificial Mass Rearing

  • Lee, Jin Gu;Kim, Hee Dong;Kang, Chang Sung;Seo, Ae Gyeong;Lee, Sang Hyun;Park, Young Kyu;Lee, Young Bo
    • International Journal of Industrial Entomology and Biomaterials
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    • v.26 no.1
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    • pp.61-66
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    • 2013
  • Baculum elongatum has several peculiarities such as parthenogenesis, unique external features, changing body color, and dropping oviposition, which makes it a potential economically useful insect. Oviposition was performed by females without fertilization by the sperm of males. The oviposition period was $42.2{\pm}22.7$ days and the number of eggs per female was $109.5{\pm}70.5$ eggs. The hatch rate was 73.3% at $25^{\circ}C$ and 66.7% after low temperature treatment ($8^{\circ}C$ for 60 days). In nature, B. elongatum overwinters as an egg, but it can be assumed from the results that cold temperatures were not required for hatching. The hatch rate was 98.2% in the treatment using floral foam, fermented sawdust, and leaves. The developmental period was $100.9{\pm}4.2$ days for eggs, $55.3{\pm}4.6$ days for nymphs, and $49.7{\pm}16.0$ days for adults. The length of the eggs was $0.33{\pm}0.0$ cm and the lengths of the nymphs were clearly distinguishable according to the instar stage. Clover(Trifolium repens) was an excellent diet as it was similar to the host plant and could be used as an alternative diet. The rate of reaching adulthood for the insects was 66.7% on an artificial diet containing 25% acacia leaves. For sustainable mass rearing of nymphs or adults of B. elongatum, a natural diet could be used such as acacia (Robinia pseudoacacia), white oak (Quercus aliena), chestnut (Castanea crenata var. dulcis), and bush clover (Lespedeza bicolor), or an alternative diet such as clover or artificial diet.

Development and application of the magnetic field device for single crystal growth (자기장 단결정 성장장치의 개발과 적용)

  • Kim, Shin Ae;Cho, Sang-Jin;Magay, Elena;Ryu, Sun-Young
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.23 no.1
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    • pp.1-7
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    • 2013
  • The three-dimensional structure of the proteins, including the location of the hydrogen atoms can be analyzed by using neutron diffraction. In order to grow single crystals for neutron diffraction experiments, we developed a simple magnetic field device with the commercial magnets and succeeded in growing hen egg-white lysozyme single crystals of more than 1 $mm^3$ in volume using this device. The crystals grown with a magnetic field were larger and had perfect transparency, whereas the crystals grown without a magnetic field had micro-cracks. The result of the X-ray measurement showed a good resolution and small mosaicity for the crystals grown in the presence of a magnetic field.