Wyniki wyszukiwania - AGRO

1

Occupational exposure to Aspergillus niger in a citric acid factory

100%

Krysinska-Traczyk E., Dutkiewicz J.

Annals of Agricultural and Environmental Medicine

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1996

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tom 03

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nr 1

2

Why some Yarrowia lipolytica strains secret citric acid to the medium?

86%

Robak M.

Electronic Journal of Polish Agricultural Universities. Series: Biotechnology

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2020

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tom 23

|

nr 3

3

Effects of inhaled corticosteroids on cough in awake guinea pigs with experimental allergic rhinitis - the first experience

86%

Brozmanova M., Calkovsky V., Plevkova J., Tatar M.

Journal of Physiology and Pharmacology. Supplement

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2004

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tom 55

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nr 3

23-30

Allergic rhinitis is a common cause of chronic cough. Topical corticosteroids are regarded as the most effective first-time treatment in allergic rhinitis. In this study we evaluated the cough sensitivity during the early and late allergic responses in guinea pigs with experimental allergic rhinitis. Another aim of the study was to follow up the effect of inhaled beclomethasone dipropionate on the cough in guinea pigs with allergic rhinitis. 31 guinea pigs were sensitized with ovalbumin (OA). Animals were intranasally challenged with OA (experiment) or saline (control) in 7-day intervals for 9 weeks. Cough was induced by inhalation of citric acid aerosols in gradually increasing concentrations for 30 s and was evaluated 1 h after the 8th nasal challenge (NCH) and 17 h after the 9th NCH. Cough was significantly increased only during an early allergic response, 1 h after repeated NCH [18 (14-23) vs. 8 (3-10); P<0.001]. Five experimental animals were inhaling aerosol of beclomethasone dipropionate seven days between the 8th and the 9th NCH and cough was evaluated 1 h after the 9th NCH. Inhaled corticosteroids significantly inhibited the enhanced allergic rhinitis related cough [4 (1-9) vs.19 (9-37) vs. 6 (3-9); P<0.05].

4

The degree of aluminum extraction to tea infusions due to its interaction with citric acid

86%

Binczak O., Zmudzinski W.

Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze

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2018

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nr 3

5

The production of citric acid using electrodialysis with bipolar membrane of sodium citrate solutions

86%

Iglinski B., Koter S., Buczkowski R., Lis M.

Polish Journal of Environmental Studies

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2006

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tom 15

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nr 3

Investigations on sodium citrate conversion to citric acid by the pure electrodialysis process with bipolar membrane were carried out. The current efficiencies based on the number of moles of produced acid and on the concentration changes were determined. Both the mean and the instantaneous efficiencies were calculated. It was found that the mean efficiencies of acid and base are higher at the lowest current densities (52 mA/cm²), with the maximum being observed at 78 mA/cm² for the highest initial salt concentration (1.4 mol/dm³). Higher initial sodium citrate concentration in the salt circuit increases the process efficiency. In the case of low initial salt concentrations, as the process progresses, acid instantaneous efficiency, CEa, decreases with time. For cs = 1 mol/dm³ it is practically constant, and for higher salt concentrations they even grow. In the case of the highest investigated current density (104 mA/cm²), the opposite situation was observed; that is, the CEa decreases with time for the higher salt concentration cs = 1.3 mol/dm³.

6

Effects of citric acid level, raw meat material composition and storage time on properties of sausage imitating salami - short report

86%

Tyburcy A., Lawecka A., Grochalska D.

Polish Journal of Food and Nutrition Sciences

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2001

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tom 10

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nr 3

The aim of the study was to determine the effects of raw meat material composition, citric acid level (0.1 or 0.15%) and storage time at 10°C (2 or 6 days) on properties of sausage imitating salami. As modification of meat raw material composition, part of the binding component - unfrozen 2nd class beef (lean, with high connective tissue content) was replaced by frozen 3rd class pork (also lean, with high connective tissue content). The amount of 2nd class beef in the formula was 30 or 10%. Modification of technological process applied in the experiment brought no advantages. The diminished amount of binding component and/or increased citric acid addition did not accelerate drying of the sausage during storage at 1()°C. The changes in the formula were detrimental to quality characteristics of the product. Storage at 10°C slightly improved texture (bind) of the sausage (as a result of drying). It did not cause significant changes in other sensory scores and pH.

7

Titanium dioxide and alpha-hydroxyacids in aqueous solutions and O-W emulsions

86%

Glowczyk-Zubek J., Kus S., Maslowska B., Nadir F.

Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze

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2007

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nr 4

8

Optimization of citric acid production from glucose syrup by Yarrowia lipolytica using response surface methodology

86%

Rymowicz W., Cibis E.

Electronic Journal of Polish Agricultural Universities. Series: Biotechnology

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2006

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tom 09

|

nr 1

A new criterion was proposed to evaluate the process of citric acid biosynthesis by the acetate negative mutant strain Yarrowia lipolytica AWG-7 cultivated on glucose syrup by the repeated-batch method. This criterion imparts the same weight to the overall amount of the citric acid production and to the trend in citric acid concentration. To determine the optimum levels of bacto-peptone, ammonium chloride and potassium dihydrogen phosphate which maximize the proposed objective function, a central composite design was developed using 50 ml repeated-batch fermentation. The design involved 20 processes conducted with various combinations of the five values of these three parameters. The experiments produced empirical values of the proposed criterion which were then approximated with the fourth-order polynomial. It was found that the optimal concentrations of bacto-peptone, ammonium chloride, and potassium dihydrogen phosphate equaled 8.5; 159.8 and 65 mgl-1, respectively.

9

Cough reflex sensitivity is increased in the guinea pig model of allergic rhinitis

72%

Brozmanova M., Plevkova J., Tatar M., Kollarik M.

Journal of Physiology and Pharmacology. Supplement

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2008

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tom 59

|

nr 6

153-161

10

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Aluminium solubility in the presence of citric acid

72%

Badora A.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1998

|

tom 456

The present study points to an important role of citric acid in limiting toxicity of aluminium ions for pea plants which was confirmed by the plants’ growth, development and yield. Excess of aluminium influenced plant nutrition with Ca, P, Mg, and K as this toxic element did not only gather in the roots of the studied plants but also in their above-ground parts. Limitation of aluminium toxicity by its complexing with citric acid clearly influenced a increase in the Fe uptake by plants and an decrease in the Mn uptake which was statistically proved.

11

In vitro effects of quercetin on oxidative stress mediated in human erythrocytes by benzoic acid and citric acid

72%

Bas H., Kalender S., Pandir D.

Folia Biologica

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2014

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tom 62

|

nr 1

12

Production of citric acid on sugar beet molasses by single and mixed cultures of Yarrowia lipolytica

72%

Zarowska B., Wojtatowicz M., Rymowicz W., Robak M.

Electronic Journal of Polish Agricultural Universities. Series: Biotechnology

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2001

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tom 04

|

nr 2

13

Concentrations of some organic acids in potato tubers depending on weed control method, cultivar and storage conditions

72%

Wichrowska D., Rogozinska I., Pawelzik E.

Polish Journal of Environmental Studies

|

2009

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tom 18

|

nr 3

487-491

Three-year-long field and storage experiments were carried out to evaluate changes in concentrations of some organic acids in ‘Rywal’ and ‘Saturna’ potato tubers as affected by herbicides used during the growing period. The tubers were stored for 3 and 6 months at 4℃ and 8℃ at relative humidity of 95%. The weed control method did not change acid concentrations in the tubers. However, significant differences between the cultivars were seen. ‘Saturna’ had a higher content of citric, tartaric and fumaric acids, while that of malic acid was lower than in the ‘Rywal’ cultivar. There was a negative correlation between organic acids under study and malic acid after the harvest. The storage period and a lower storage temperature promoted accumulation of malic acid in both cultivars. A reverse relationship was noted in the case of other acids under study. The highest decrease, up to 70%, was found for fumaric acid assessed after 6 months of storage of the ‘Saturna’ cultivar.

14

Tussigenic agents in the measurement of cough reflex sensitivity

72%

Pecova R., Javorkova N., Kudlicka J., Tatar M.

Journal of Physiology and Pharmacology. Supplement

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2007

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tom 58

|

nr 5

15

Biosynthesis of citric acid by yeast Yarrowia lipolytica A-101-1.31 under repeated batch cultivation

72%

Rywinska A., Wojtatowicz M., Zarowska B., Rymowicz W.

Electronic Journal of Polish Agricultural Universities. Series: Biotechnology

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2008

|

tom 11

|

nr 1

16

Effects of thorax irradiation on citric acid-induced cough in guinea pigs

72%

Javorkova N., Brozmanova M., Hajtmanova E., Zamecnik L., Bartos V., Plank L., Javorka M., Hanacek J., Tatar M.

Journal of Physiology and Pharmacology. Supplement

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2006

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tom 57

|

nr 4

149-156

Thoracic irradiation may cause an acute lymphocytic alveolitis or hypersensitivity pneumonitis. It is well known that cough reflex is sensitized by a number of inflammatory mediators. The purpose of the present study was to investigate the effect of the thoracic irradiation on the cough response in awake guinea pigs. Guinea pigs (Trik strain) were exposed to sham irradiation (n=16), a single irradiation dose of 10 Gy (n=12), and a fractionated irradiation dose (in five fractions) of 15 Gy (n=12) delivered to the thorax. Cough was induced by citric acid aerosol inhalation in gradually increasing concentrations (0.05-1.6 M) during the first week after thoracic irradiation. The cough response was expressed as a total number of coughs induced during all citric acid challenges. Irradiated animals with single dose of 10 Gy exhibited a time- dependent significant increase of citric acid-induced cough in the 6th day after irradiation compared with control animals (P=0.005), whereas cough was not altered significantly in irradiated animals with fractionated dose of 15 Gy. This study demonstrates that the increased cough response may be a determinant of the functional changes of airway nerve-endings mediating cough in the early phase after thoracic irradiation.

17

Evaluation of the cough reflex and airway reactivity in toluene- and ovalbumin-induced airway hyperresponsiveness

72%

Mokry J., Nosalova G.

Journal of Physiology and Pharmacology. Supplement

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2007

|

tom 58

|

nr 5

18

The use of immobilized Yarrowia lipolytica cells in Ca-alginate for citric acid production

72%

Rymowicz W., Wojtatowicz M., Robak M., Jurgielewicz W.

Acta Microbiologica Polonica

|

1993

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tom 42

|

nr 2

19

Some enzyme activities of acetate mutants of Yarrowia lipolytica

72%

Robak M., Wojtatowicz M., Rymowicz W.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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1994

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tom 42

|

nr 2

20

The effect of Aspergillus niger mutagenization on citric acid biosynthesis

72%

Walisch S., Juda K.

Acta Mycologica

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1991-1992

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tom 27

|

nr 2

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