Determination of Shelf Life of Milled Rice Stored at Different Temperatures

Three Korean side dishes of seasoned beef soup, soybean sprouts and fried tofu were stored at 0, 3 and 10 C. Changes in sensory, physical and chemical indexes were compared with microbial quality deterioration for shelf life determination. For beef soup, shelf life, based on a microbial quality limit of 106 cfu/g, was comparable to that obtained from sensory quality. The primary quality factor criterion for seasoned soybean sprouts determining shelf life varied with storage temperature. For seasoned tofu, shelf life estimates based on a microbial criterion of 106 cfu/g represented a more conservative estimate than those based on sensory quality at 3 and 10 C. Microbial quality was generally to be a common and sensitive criterion for shelf life determination, thus a microbial growth model was used to estimate shelf life at different temperatures.

Download Full-text

Quantitative Assessment of Soluble Fibrin in Plasma by Affinity Chromatography – A Comparative Study with desAA-Fibrin, desAABB-Fibrin and Fibrinogen

Thrombosis and Haemostasis ◽

10.1055/s-0038-1657891 ◽

1985 ◽

Vol 54 (02) ◽

pp. 533-538 ◽

Cited By ~ 4

Author(s):

Wilfried Thiel ◽

Ulrich Delvos ◽

Gert Müller-Berghaus

Keyword(s):

Affinity Chromatography ◽

Calcium Ions ◽

Quantitative Assessment ◽

Fluid Phase ◽

Soluble Fibrin ◽

Binding Characteristics ◽

Different Temperatures ◽

Immobilized Proteins ◽

Sepharose 4B

SummaryA quantitative determination of soluble fibrin in plasma was carried out by affinity chromatography. For this purpose, desAA-fibrin and fibrinogen immobilized on Sepharose 4B were used at the stationary side whereas batroxobin-induced 125I-desAA-fibrin or thrombin-induced 125I-desAABB-fibrin mixed with plasma containing 131I-fibrinogen represented the fluid phase. The binding characteristics of these mixtures to the immobilized proteins were compared at 20° C and 37° C. Complete binding of both types of fibrin to the immobilized desAA-fibrin was always seen at 20° C as well as at 37° C. However, binding of soluble fibrin was accompanied by substantial binding of fibrinogen that was more pronounced at 20° C. Striking differences depending on the temperature at which the affinity chromatography was carried out, were documented for the fibrinogen-fibrin interaction. At 20° C more than 90% of the applied desAA-fibrin was bound to the immobilized fibrinogen whereas at 37° C only a mean of 17% were retained at the fibrinogen-Sepharose column. An opposite finding with regard to the tested temperature was made with the desAABB-fibrin. Nearly complete binding to insolubilized fibrinogen was found at 37° C (95%) but only 58% of the desAABB-fibrin were bound at 20° C. The binding patterns did not change when the experiments were performed in the presence of calcium ions. The opposite behaviour of the two types of soluble fibrin to immobilized fibrinogen at the different temperatures, together with the substantial binding of fibrinogen in the presence of soluble fibrin to insolubilized fibrin in every setting tested, devaluates affinity chromatography as a tool in the quantitative assessment of soluble fibrin in patients’ plasma.

Download Full-text

Ophthalmic optics. Contact lenses. Determination of shelf-life

10.3403/01354303u ◽

2015 ◽

Keyword(s):

Shelf Life ◽

Contact Lenses

Download Full-text

Ophthalmic optics. Contact lens care products. Guidelines for the determination of shelf-life

10.3403/01791856u ◽

2015 ◽

Keyword(s):

Shelf Life ◽

Contact Lens

Download Full-text

Quality Changes in Low-Salted Squid Jeot-gal during Fermentation and Determination of Shelf-life

Journal of the Korean Society of Food Science and Nutrition ◽

10.3746/jkfn.2012.41.5.687 ◽

2012 ◽

Vol 41 (5) ◽

pp. 687-694 ◽

Cited By ~ 9

Author(s):

Kyoung-Gook Lee ◽

Sang-Moo Kim

Keyword(s):

Shelf Life ◽

Quality Changes

Download Full-text

Determination of Load-Carrying Capacity of C-Profile Glued Ti-Al Column under Temperature Environment

Materials ◽

10.3390/ma14113013 ◽

2021 ◽

Vol 14 (11) ◽

pp. 3013

Author(s):

Leszek Czechowski

Keyword(s):

Carrying Capacity ◽

Tensile Tests ◽

Discrete Models ◽

Image Correlation ◽

Load Carrying Capacity ◽

Lagrange Equations ◽

Load Carrying ◽

Different Temperatures ◽

Influence Of Temperature On

The paper deals with an examination of the behaviour of glued Ti-Al column under compression at elevated temperature. The tests of compressed columns with initial load were performed at different temperatures to obtain their characteristics and the load-carrying capacity. The deformations of columns during tests were registered by employing non-contact Digital Image Correlation Aramis® System. The numerical computations based on finite element method by using two different discrete models were carried out to validate the empirical results. To solve the problems, true stress-logarithmic strain curves of one-directional tensile tests dependent on temperature both for considered metals and glue were implemented to software. Numerical estimations based on Green–Lagrange equations for large deflections and strains were conducted. The paper reveals the influence of temperature on the behaviour of compressed C-profile Ti-Al columns. It was verified how the load-carrying capacity of glued bi-metal column decreases with an increase in the temperature increment. The achieved maximum loads at temperature 200 °C dropped by 2.5 times related to maximum loads at ambient temperature.

Download Full-text

Oxidation Kinetics of Hazelnut Shelf-Life Prediction Model

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.200.466 ◽

2012 ◽

Vol 200 ◽

pp. 466-469

Author(s):

Wen Li Dong ◽

Xue Gong ◽

Jing Dong ◽

Ling Jin ◽

Yu Xiang Wei

Keyword(s):

Prediction Model ◽

Shelf Life ◽

Peroxide Value ◽

Storage Temperature ◽

Order Kinetic ◽

Shelf Life Prediction ◽

Changing Patterns ◽

Kinetics Of ◽

Life Prediction Model

The changing patterns of filbert peroxide value through the determination of different storage temperature conditions,research the dynamics characteristics of oxidative rancidity of filbert. By regression analysis base on the storage time and the logarithm of peroxide value,it concluded the grease oxidation reaction first-order kinetic equation of filbert.Using Arrhenius equation and Q10 model for 5 ~ 35 °C temperature within the shelf life of any temperature prediction model.

Download Full-text