scholarly journals Maintain the Chili Colour of a Sea-food Dipping Sauce in Product Processing

2019 ◽  
Vol 3 (4) ◽  
pp. p133
Author(s):  
W. Puminat
Keyword(s):  
Factor Model ◽  
Solid Content ◽  
Preparation Process ◽  
Chlorophyll B ◽  
Sugar Water ◽  
Green Colour ◽  
Heating And Cooling ◽  
The Stability ◽  
Short Time ◽  
Color Preservation

Products of sea-food dipping sauce were prepared by sugar, water, acid, salt with chili and herbs. In the experiments, products were prepared and designed on a factor model for the study on the program. They were designed as factorial 4×2×4 by management with RBCD on conditions model of blanching, heating and cooling for the study on chili colour. The results of the experiments performed on physicochemical properties of product such as Brix 50.0-66.9 pH 3.52-4.29, Aw 0.814-0.879, solid content 2.80-5.75 g/100g, chlorophyll a 0.20-1.66, chlorophyll b 1.38-4.13. Colour value of products was L*29.99-23.97, a*-2.56- -3.0 and b*8.28-1.21. The green value of products was preserved green colour for processing on blanching, short-time heating and all cooling. The color preservation of chili depended on the preparation process. Blanching and cooling supported to preserve the colour and decreasing of decay texture. Usage chemicals as Ca2+ and Mg2+ treatment.in processing of products were preserved a green colour more than no chemical treatment. Blanching, cooling and short time for cooking were product development in order to preserve the green colour. The stability of the color of product was improved by blanching and cooling including boiling with short time.

Optimization of the time the chromatograph thermostats exit to a given temperature

2020 ◽  
pp. 40-45
Author(s):  
Nadezhda O. Vzduleva ◽  
Valery B. Gitlin
Keyword(s):  
Heating Rate ◽  
Entire Range ◽  
Gas Chromatograph ◽  
Heating And Cooling ◽  
Operating Temperatures ◽  
The Stability

The problems of ensuring the stability of the temperature of the chromatographic experiment carried out using a serial gas chromatograph LGH-3000 are considered. Limiting the permissible heating rate of the chromatograph thermostats does not allow a quick transition to the new conditions of the chromatographic experiment in accordance with the requirements of the technical conditions. The processes of heating and cooling the thermostat are analyzed. It is shown that the ratio of the duration of the interval equal to the sum of the durations of the heating and cooling intervals to the duration of the heating interval is inversely proportional to the temperature of the chromatographic experiment. Based on this situation, an empirical algorithm is proposed for heating the thermostat to a given temperature, which made it possible to reduce the time it takes to reach a given temperature in the entire range of operating temperatures.

scholarly journals Dual 2-Hydroxypropyl-β-Cyclodextrin and 5,10,15,20-Tetrakis (4-Hydroxyphenyl) Porphyrin System as a Novel Chiral-Achiral Selector Complex for Enantioseparation of Aminoalkanol Derivatives with Anticancer Activity in Capillary Electrophoresis

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 993
Author(s):  
Błażej Grodner ◽  
Mariola Napiórkowska
Keyword(s):  
Capillary Electrophoresis ◽  
Anticancer Agents ◽  
Chiral Discrimination ◽  
Combined Effects ◽  
Pilot Studies ◽  
Repeatability And Reproducibility ◽  
The Stability ◽  
Short Time ◽  
High Separation

In this study, a complex consisting of 2-hydroxypropyl-β-cyclodextrin and 5,10,15,20-tetrakis (4-hydroxyphenyl) porphyrin, (named dual chiral-achiral selector complex) was used for the determination of two novel potential anticancer agents of (I) and (II) aminoalkanol derivatives. This work aimed at developing an effective method that can be utilized for the determination of I (S), I (R), and II (S) and II (R) enantiomers of (I) and (II) compounds through the use of a dual chiral-achiral selector complex consisting of hydroxypropyl-β-cyclodextrin and 5,10,15,20-tetrakis (4-hydroxyphenyl) porphyrin system by applying capillary electrophoresis. This combination proved to be beneficial in achieving high separation selectivity due to the combined effects of different modes of chiral discrimination. The enantiomers of (I) and (II) compounds were separated within a very short time of 3.6–7.2 min, in pH 2.5 phosphate buffer containing 2-hydroxypropyl-β-cyclodextrin and 5,10,15,20-tetrakis (4-hydroxyphenyl) porphyrin system at a concentration of 5 and 10 mM, respectively, at 25 °C and +10 kV. The detection wavelength of the detector was set at 200 nm. The LOD for I (S), I (R), II (S), and II (R) was 65.2, 65.6, 65.1, and 65.7 ng/mL, respectively. LOQ for I (S), I (R), II (S), and II (R) was 216.5, 217.8, 217.1, and 218.1 ng/mL, respectively. Recovery was 94.9–99.9%. The repeatability and reproducibility of the method based on the values of the migration time, and the area under the peak was 0.3–2.9% RSD. The stability of the method was determined at 0.1–4.9% RSD. The developed method was used in the pilot studies for determining the enantiomers I (S), I (R), II (S), and II (R) in the blood serum.

PNEUMATIC VIBROISOLATION SYSTEM OF THE BASE DESK WITH NATURAL FREQUENCY REGULATION

2021 ◽  
Vol 113 ◽  
pp. 91-100
Author(s):  
Radka JÍROVÁ ◽  
Lubomír PEŠÍK
Keyword(s):  
Natural Frequency ◽  
Automotive Industry ◽  
Natural Frequencies ◽  
Dynamical Behaviour ◽  
Operating Conditions ◽  
Frequency Regulation ◽  
The Stability ◽  
Short Time

Vibroisolation systems of base desks for machine and testing facilities usually cannot effect efficient changing of their own frequencies according to operating conditions. Especially in the case of the automotive industry, the possibility of changing natural frequencies is very desirable. During varying operating conditions, the vibroisolation system needs to be regulated easily and quickly regarding the minimisation of dynamical forces transmitted to the ground and to ensure the stability of the testing process. This paper describes one of the options of tuning the base desk at a relatively short time and by sufficient change of own frequencies, which decides the dynamical behaviour of the whole system.

scholarly journals TO IMPROVE THE ANALYSIS OF THE FINANCIAL SECURITY OF THE BUSINESS IN GEORGIAN ENTERPRISES

2020 ◽  
pp. 135-147
Author(s):  
IZOLDA CHILADZE
Keyword(s):  
Financial Management ◽  
Financial Stability ◽  
Factor Model ◽  
Limited Liability ◽  
Sustainable Growth ◽  
Sustainable Business ◽  
Growth Trend ◽  
Factors Affecting ◽  
The Stability ◽  
And Control

The purpose of this paper is to improve the analysis of the financial stability of enterprises and to identify the key factors affecting the establishment of the sustainable growth trend of enterprises (except the financial sector) in Georgia. Answering the question: what financial challenges do enterprises in Georgia face today and be designed consequently, recommendations for strengthening the financial stability of enterprises should be developed in Georgia, increasing solvency and mitigating bankruptcy risks? The necessity for the financial stability of enterprises is becoming increasingly important both for sustainable business growth and for the stability of the international financial market.The subject of the study is the financial positions and financial results of the analytical enterprises. The first and second categories of joint-stock companies of Georgia and limited liability companies were selected as the research objects. Ten enterprises in total. The research methodology includes methods of economic and statistical analysis, factor analysis, vertical, horizontal, proportional and ratio analysis.In order to improve financial management and control, the paper presents multi-factor models of several indicators created by the author. These are: the tree-factor model the coefficient of the organic structure of capital, an eight-factor model of profitability and a six-factor model of the Financial leverage. The paper conducts practical research on the example of ten Georgian companies and concludes that the main challenges in today›s Georgia are the dangers of losing financial stability and bankruptcy. The reason for such a tense financial situation is not a «Corona-19». According to the author, the main reasons for the instability of enterprises in Georgia are: The Irresponsibility of business owners and management, low management professionalism and hidden flows of cash resources.

scholarly journals The influence of short-time ball-milling on the stability of amorphous CoFeB alloys

2007 ◽  
Vol 19 (17) ◽  
pp. 176215 ◽  
Author(s):  
K Saksl ◽  
J Bednarčík ◽  
R Nicula ◽  
E Burkel ◽  
S Roth ◽  
...  
Keyword(s):  
Ball Milling ◽  
The Stability ◽  
Short Time

scholarly journals Thermal processes in molecular gas

1991 ◽  
Vol 147 ◽  
pp. 197-204
Author(s):  
J.P. Chièze ◽  
C. de Boisanger
Keyword(s):  
Ultraviolet Radiation ◽  
Molecular Clouds ◽  
Radiation Flux ◽  
Molecular Gas ◽  
Heating And Cooling ◽  
Collective Motions ◽  
Thermochemical Processes ◽  
Order Of Magnitude ◽  
Short Time ◽  
Non Equilibrium

The dynamics of the cold atomic and molecular gas, on which we focus here, is strongly affected by non equilibrium heating and cooling processes. We give two different examples, in which the breaking of the thermal balance is due respectively to variations of the incident ultraviolet radiation flux, and non equilibrium abundances of H2 molecules in molecular clouds envelopes. Fluctuations of the ultraviolet radiation flux in clumpy molecular cloud envelopes result in the formation or the destruction of dense regions. Large density contrasts, greater than one order of magnitude, are easily achieved in cloud regions of moderate visual extinction. Condensation or expansion develop on quite short time scales, of the order of a few tenth of million year, and induce collective motions which can feed turbulence.Another example of the importance of out of equilibrium thermochemical processes is furnished by the study of the H — H2 transition layers in molecular clouds envelopes. They turn out to be unstable against convection-like motions, driven by the energy released by H2 photodestruction. The gas velocities involved in these motions are, again, typical of the observed turbulent velocity in clouds envelopes.

scholarly journals Embedded Dimension and Time Series Length. Practical Influence on Permutation Entropy and Its Applications

Entropy ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 385 ◽  
Author(s):  
David Cuesta-Frau ◽  
Juan Pablo Murillo-Escobar ◽  
Diana Alexandra Orrego ◽  
Edilson Delgado-Trejos
Keyword(s):  
Time Series ◽  
Classification Performance ◽  
Permutation Entropy ◽  
Series Length ◽  
Stability Point ◽  
Long Time ◽  
Model Time Series ◽  
The Stability ◽  
Forbidden Patterns ◽  
Short Time

Permutation Entropy (PE) is a time series complexity measure commonly used in a variety of contexts, with medicine being the prime example. In its general form, it requires three input parameters for its calculation: time series length N, embedded dimension m, and embedded delay τ . Inappropriate choices of these parameters may potentially lead to incorrect interpretations. However, there are no specific guidelines for an optimal selection of N, m, or τ , only general recommendations such as N > > m ! , τ = 1 , or m = 3 , … , 7 . This paper deals specifically with the study of the practical implications of N > > m ! , since long time series are often not available, or non-stationary, and other preliminary results suggest that low N values do not necessarily invalidate PE usefulness. Our study analyses the PE variation as a function of the series length N and embedded dimension m in the context of a diverse experimental set, both synthetic (random, spikes, or logistic model time series) and real–world (climatology, seismic, financial, or biomedical time series), and the classification performance achieved with varying N and m. The results seem to indicate that shorter lengths than those suggested by N > > m ! are sufficient for a stable PE calculation, and even very short time series can be robustly classified based on PE measurements before the stability point is reached. This may be due to the fact that there are forbidden patterns in chaotic time series, not all the patterns are equally informative, and differences among classes are already apparent at very short lengths.

Effects of temperature, solid content and pH on the stability of black carrot anthocyanins

2007 ◽  
Vol 101 (1) ◽  
pp. 212-218 ◽  
Author(s):  
Ayşegül Kırca ◽  
Mehmet Özkan ◽  
Bekir Cemeroğlu
Keyword(s):  
Solid Content ◽  
Black Carrot ◽  
Effects Of Temperature ◽  
The Stability

The Influence of Heating and Cooling on the Stability of a Liquid Layer

1980 ◽  
Vol 23 (176) ◽  
pp. 224-230 ◽  
Author(s):  
Yasuo IWASAKI ◽  
Eiji HASEGAWA
Keyword(s):  
Liquid Layer ◽  
Heating And Cooling ◽  
The Stability

The Effect of Freeze/Thaw Cycles on the Stability of Compounds in DMSO

2003 ◽  
Vol 8 (2) ◽  
pp. 210-215 ◽  
Author(s):  
Barbara A. Kozikowski ◽  
Thomas M. Burt ◽  
Debra A. Tirey ◽  
Lisa E. Williams ◽  
Barbara R. Kuzmak ◽  
...  
Keyword(s):  
High Throughput Screening ◽  
High Performance ◽  
Atmospheric Conditions ◽  
Freeze Thaw ◽  
Thaw Cycle ◽  
Time Period ◽  
Freeze Thaw Cycle ◽  
Low Humidity ◽  
The Stability ◽  
Short Time

A diverse set of 320 compounds from the Procter & Gamble Pharmaceuticals organic compound repository was prepared as 20-mM DMSO solutions and stored at 4°C under argon in pressurized canisters to simulate a low-humidity environment. The plates were subjected to 25 freeze/thaw cycles while being exposed to ambient atmospheric conditions after each thaw to simulate the time and manner by which compound plates are exposed to the atmosphere during typical liquid-handling and high-throughput screening processes. High-performance liquid chromatography–mass spectrometry with evaporative light-scattering detection was used to quantitate the amount of compound remaining after every 5th freeze/thaw cycle. Control plates were stored either at room temperature under argon or at 4°C under argon without freeze/thaw cycling and were evaluated at the midpoint and the endpoint of the study. The study was conducted over a short time period (i.e., 7 weeks) to minimize the effect of compound degradation over time due to the exposure of the compounds to DMSO.The results from this study will be used to determine the maximum number of freeze/thaw cycles that can be achieved while maintaining acceptable compound integrity.(Journal of Biomolecular Screening 2003:210-215)

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