• Title/Summary/Keyword: sodium phosphate

Search Result 499, Processing Time 0.026 seconds

Effect of Some Food Preservatives on the Lipolytic Activity of Beef Luncheon Fungi

  • Saleem, Abdel-Rahman
    • Mycobiology
    • /
    • v.36 no.3
    • /
    • pp.167-172
    • /
    • 2008
  • Beef luncheon meat is one of the most popular meals in several countries in the world including Egypt. Thirty one fungal species and 3 species varieties were recovered from 30 samples of beef luncheon meat collected from different supermarkets in Qena. Alternaria, Aspergillus, Emericella, Mucor, Mycosphaerella, Penicillium and Rhizopus were the most common genera on the two types of media. From the above genera, the most prevalent species were Alternaria alternate, Aspergillus flavus, A. fumigatus, A. niger, A. terreus, Emericella nidulans, Mucor racemosus, Mycosphaerella tassiana, Penicillium chrysogenum and Rhizopus stolonifer. Screening of fungi for their abilities to produce lipase enzyme showed that, ten isolates represented 32.26% of total isolates appeared high lipase production, while sixteen isolates (51.61%) were moderate and 5 isolates (16.13%) were low producers. Aspergillus niger, Fusarium oxysporum and Nectria haematococca produced the highest amount of lipase enzyme, so these fungi were used in further studies. The incorporation of five food preservatives (Disodium phosphate, sodium benzoate, citric acid, potassium sorbate and sodium citrate) individually in the culture medium of lipase production exhibited an inhibitive effect on the mycelial growth and enzyme production by Aspergillus niger, Fusarium oxysporum and Nectria haematococca.

Tumoral calcinosis and calciphylaxis treated with subtotal parathyroidectomy and sodium thiosulphate

  • Cho, Hyunjeong;Yi, Yongjin;Kang, Eunjeong;Park, Seokwoo;Cho, Eun Jin;Cho, Sung Tae;Chun, Rho Won;Lee, Kyu Eun;Oh, Kook-Hwan
    • Journal of Yeungnam Medical Science
    • /
    • v.33 no.1
    • /
    • pp.68-71
    • /
    • 2016
  • Tumoral calcinosis (TC) is a condition resulting from extensive calcium phosphate precipitation, primarily in the periarticular tissues around major joints. Calciphylaxis is a fatal ischemic vasculopathy mainly affecting dermal blood vessels and subcutaneous fat. This syndrome is rare and predominantly occurs in patients with end-stage renal disease. Here, we report on a rare case involving a patient with TC complicated with calciphylaxis. Our patient was a 31-year-old man undergoing hemodialysis who presented with masses on both shoulders and necrotic cutaneous ulcers, which were associated with secondary hyperparathyroidism, on his lower legs. He underwent subtotal parathyroidectomy, and sodium thiosulfate (STS) was administered for 27 weeks. Twenty months after beginning the STS treatment course, he experienced dramatic relief of his TC and calciphylaxis.

Effect of Titanium Sulfate Addition on Crystal Growth of the Flaky α-Al2O3 (황산티타늄의 첨가가 판상 α-Al2O3의 결정성장에 미치는 영향)

  • Park, Byung-Ki;Cho, Sun-Mi;Lee, Jung-Min
    • Journal of the Korean Ceramic Society
    • /
    • v.42 no.5 s.276
    • /
    • pp.338-345
    • /
    • 2005
  • To prepare the complex gel of flux and pseudo-boehmite used in precursor of the flaky ${\alpha}-A1_2O_3$ crystal, aqueous solution of the mixture of sodium carbonate and sodium phosphate was added with stirring in aqueous solution of the mixture of sodium sulfate, potassium sulfate and titanium sulfate. The complex gel was dried at $110^{\circ}C$ and was crystallized above $1,050^{\circ}C$, and then the effect of the amount of titanium sulfate on size, morphology, thickness and crystal size distribution of the flaky ${\alpha}-A1_2O_3$ crystal was investigated. Addition of titanium sulfate was prevented the aggregation and generation of twin crystal, and had an effect on the crystal size and the thickness during crystal growth. When the amount of titanium sulfate was more than 6 g, particle size was decreased but was free from crystal twining and aggregation. On the other hand, when the amount of titanium sulfate was lower than 6 g, crystal size was increased but crystal twinning and aggregation were noticed.

Studies on Dissolution Rate of Drugs (XV) Dissolution Characteristics of Ibuprofen Dispersed in Sodium Deoxycholate (의약품의 용출에 관한 연구(제15보) 데옥시콜린산나트륨에 분산된 이부프로펜의 용출 특성)

  • Park, Tea-Am;Seo, Seong-Hoon;Kim, Soo-Uck
    • Journal of Pharmaceutical Investigation
    • /
    • v.19 no.1
    • /
    • pp.1-7
    • /
    • 1989
  • Coprecipitates of ibuprofen (IPF)-sodium deoxycholate (DC-Na) were prepared at various mixing ratios of IPF to DC-Na. X-ray diffraction measurments indicated that IPF in 1:3 and 1:5 IPF-DC-Na coprecipitate did not exist in the crystal form, however in the 1:8 coprecipitate, IPF remained its crystalline form. The dissolution rate was tested in pH 7.4 phosphate buffer by the paddle method of dissolution test of KP V. The dissolution rates of IPF from 1:1, 1:3, 1:5, 1:8 and 1:10(w/w) IPF-DC-Na coprecipitates and physical mixtures were compared with that of IPF alone. It was found that the dissolution rate of 1:5(w/w) coprecipitate was greater than that of pure IPF, coprecipitate and physical mixture at any other ratios of the two components. The concentration of IPF released from the IPF-DC-Na coprecipitates reached a plateau within 10 min, and thereafter gradually decreased indicating that IPF released from the coprecipitate was recrystallized due to the transient supersaturation.

  • PDF

Determination and Application of 3-Methylhistidine Levels in Urine (뇨(尿)중 3-Methylhistidine 함량의 측정과 이용)

  • 정수현;서형주
    • The Korean Journal of Food And Nutrition
    • /
    • v.9 no.2
    • /
    • pp.213-216
    • /
    • 1996
  • A modified method is given for the precolumn derivatization and subsequent high-pressure liquid chromatographic seperation of 3-methylhistidine from urine. The elution contained isocratic solution with acetonirile and 10 M sodium phosphate(pH 7.5) requires less than 7 min. The recoveries of 3-methylhlstidine from urine control were 95% to 106%. 3-Methylhistidine determinations were performed on urine samples from volunteers who were both male trained and non-trained physical undergraduates. As the result, urinary .3-methylhistidine content of volunteers increased significantly after weight training.

  • PDF

Elastic Moduli and Dissolution Rates of Resorbable Na2O-MgO-P2O5 Bioglasses (Na2O-MgO-P2O5 생체 유리의 탄성계수와 용해도)

  • ;T.D.Taylor
    • Journal of the Korean Ceramic Society
    • /
    • v.26 no.6
    • /
    • pp.850-854
    • /
    • 1989
  • The elastic moduli and dissolution rates of 15 glasses with different mole ratios of sodium-magnasium-phosphate as potential non-toxic biomaterials were investigated. In this study, a 3-pint bending test, sonic resonance technique, and theoretical calculation were used to evaluate the modulus of elasticity. The dissolution rates at 37$^{\circ}C$(human body temperature) were determined by the measurement of mass changes in each sample for 24 weeks.

  • PDF

Treatment of Painful Conditions by Iontophoresis (Iontophoresis를 이용한 통증치료)

  • Goh, Joon-Seoek;Min, Byung-Woo
    • The Korean Journal of Pain
    • /
    • v.2 no.1
    • /
    • pp.26-29
    • /
    • 1989
  • Thirteen patients with various musculoskeletal inflammatory conditions and 2 postherpetic neuralgia patients received transcutaneous iontophoresis with dexamethasone sodium phosphate (1 ml = 4 mg) and 4% lidocaine hydrochloride (2 ml=80 mg, direct current 4 mA, 20 min.). Seven patients showed excellent pain relief, 4 patients showed good pain relief, and the rest of the patients had fair or poor pain relief. No side effects were seen but skin irritation and painless electrical bum were common. Results of the study indicate that iontophoresis is an effective treatment of inflammed tissues which guarantees a painless, safe and sterile method.

  • PDF

Cloning and Characterization of Phosphomannomutase/Phosphoglucomutase (pmm/pgm) Gene of Vibrio anguillarum Related to Synthesis of LPS (Lipopolysaccharide 생합성에 관여하는 Vibrio anguillarum의 phosphomannomutase/phosphoglucomutase 유전자 cloning과 특성)

  • Oh, Ryunkyoung;Moon, Soo Young;Cho, Hwa Jin;Jang, Won Je;Kim, Jang-Ho;Lee, Jong Min;Kong, In-Soo
    • Microbiology and Biotechnology Letters
    • /
    • v.44 no.3
    • /
    • pp.355-362
    • /
    • 2016
  • The phosphomannomutase/phosphoglucomutase gene (pmm/pgm) of Vibrio anguillarum (the causative agent of fish vibriosis) was cloned, and the open reading frame corresponded to a protein with 446 amino acids. The pmm/pgm gene showed a significant degree of sequence homology with the previously reported genes from V. mimicus, V. vulnificus, V. splendidus, and V. harveyi, with 92.3%, 91.4%, 89.9%, and 89.9% amino acid identity, respectively. By reverse transcriptase-polymerase chain reaction, we found that the pmm/pgm gene was upregulated under cold stress condition. The PMM/PGM protein is known to catalyze the interconversion between mannose-1-phosphate and mannose-6-phosphate or glucose-1-phosphate and glucose-6-phosphate, which are important intermediates for lipopolysaccharide (LPS) biosynthesis. To confirm the role of PMM/PGM in the LPS biosynthetic pathway, we constructed a knock out mutant by homologous recombination. The respective LPSs were isolated from the V. anguillarum wild-type and mutant strains, and changes were compared by subjecting them to sodium dodecyl sulfate polyacrylamide gel electrophoresis. Based on the different patterns of the LPSs, we expect the pmm/pgm gene to have an important role in LPS biosynthesis. The pmm/pgm-deficient mutant of V. anguillarum will contribute to further studies about the role of LPS in V. anguillarum pathogenesis.

A Study on Thermal Insulation Property and Thermal Crack Protection for Expanded Perlite Inorganic Composites (팽창진주암 무기복합재에서의 단열성능 및 열크랙 방지에 관한 연구)

  • Ahn, WonSool
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.15 no.5
    • /
    • pp.3286-3291
    • /
    • 2014
  • A study on the crack protection and thermal insulation properties of the expanded perlite inorganic composites was performed. Mixed expanded perlite with a water glass was stabilized for 24 hrs at room temperature in the mold and, thereafter, converted into a massive foamed body through complete drying process at $150^{\circ}C$. Aluminum phosphate and micron size mica powder were used as a reaction accelerator and a stabilizer for thermal crack, respectively. Especially, use of mica exhibited a remarkable effect on the protection of thermal crack at higher temperature over $500^{\circ}C$, and thermal conductivity of the composites was enhanced with higher perlite contents, showing ca. 0.09 W/mK for the sample of 100/200/10/1.5 water glass/perlite/mica/Al phosphate by weight. A severe dimensional deformation of the composite materials was observed over $600^{\circ}C$, however, showing a temperature limitation for a practical application. The facts were considered as the results from the glass transition temperature of the water glass, of which main component is sodium silicate.

Effect of Phosphate, Amino Acid, and BSA on in vitro Development of Mammalian Embryo in Chemically Defined Culture Medium (한정 배양액에서 포유동물 수정란의 체외 발생에 인, 아미노산 및 BSA가 미치는 영향)

  • 김종흥;김병기
    • Journal of Life Science
    • /
    • v.6 no.3
    • /
    • pp.204-212
    • /
    • 1996
  • The aim of this study was to evaluate the effects of phosphate, aimno acid, and BSA on in vitro development of mammalian embryos. In vitro-matured and -fertilized(IVM/IVF) bovine embryos were cultured in simple, chemically defined, protein-free medium(mTLP-PVA0. When the phosphate concentration of mTLP-PVA supplemented with 19 amino acid were adjusted to 0.0, 0.10, 0.35, 1.05 and 2.10mM by the concentration of sodium phoshpate, there were no significant different in development ability of IVM/IVF bovine embryos cultured in the medium containing from 0.00 to 1.05mM phosphate until 48 hours post-insemination, However, proportion of embryos developing to $$8-cell and morula at 96 and 144 hours post- insemination, respectively, was significantly increased in the medium with o.35 mM phosphate(p<0.05). There was significant difference between O.10(18%)-0.35(24%)mM phosphate and 1.05(13%)-2.10(1%)mM phosphate in supporting development to blastocyst(p<0.05). When IVM/IVF bovine embryos were cultured in the medium supplemented with 19 amino acids, significant different was observed in the proporton of embryos reaching $$8-cell(49-50%), morula(38-40%) and blastocyst (29-32%) stages at 96, 144, and 192 hours post-insemination, respectively(p<0.05). Glutamine alone had no benefit on embryo development. When BSA was added to mTLP-PVA with 0.35mM phosphate, glutamine and 19 amino acids at 8, 48, 120 hours post-insemination, BSA significantly enhanced the development ability ofb embryos reaching $$2-cell (74-77%), $$8-cell (49-53%), morula(43-47%), and blastocyst(38-42%) stages at 48, 96, 144, and 192 hours post-insemination, respectively, regardless of the time of BSA addition.

  • PDF