scholarly journals Investigating Direct Non-Age Metrics of Stored Blood Quality Loss

10.5580/2789 ◽  
2011 ◽  
Vol 5 (1) ◽  
Keyword(s):  
Quality Loss ◽  
Stored Blood

scholarly journals Ethylene Sensor-Enabled Dynamic Monitoring and Multi-Strategies Control for Quality Management of Fruit Cold Chain Logistics

Sensors ◽  
2020 ◽  
Vol 20 (20) ◽  
pp. 5830
Author(s):  
Xuepei Wang ◽  
Xinwu Li ◽  
Daqi Fu ◽  
Rajko Vidrih ◽  
Xiaoshuan Zhang
Keyword(s):  
Quality Management ◽  
Control Strategies ◽  
Response Speed ◽  
Chromatic Aberration ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Cold Chain ◽  
Dynamic Monitoring ◽  
Quality Loss ◽  
Exogenous Ethylene

Due to the presence of bioactive compounds, fruits are an essential part of people’s healthy diet. However, endogenous ethylene produced by climacteric fruits and exogenous ethylene in the microenvironment could play a pivotal role in the physiological and metabolic activities, leading to quality losses during storage or shelf life. Moreover, due to the variety of fruits and complex scenarios, different ethylene control strategies need to be adapted to improve the marketability of fruits and maintain their high quality. Therefore, this study proposed an ethylene dynamic monitoring based on multi-strategies control to reduce the post-harvest quality loss of fruits, which was evaluated here for blueberries, sweet cherries, and apples. The results showed that the ethylene dynamic monitoring had rapid static/dynamic response speed (2 ppm/s) and accurately monitoring of ethylene content (99% accuracy). In addition, the quality parameters evolution (firmness, soluble solids contents, weight loss rate, and chromatic aberration) showed that the ethylene multi-strategies control could effectively reduce the quality loss of fruits studied, which showed great potential in improving the quality management of fruits in the supply chain.

scholarly journals Hemoglobin Oxidation in Stored Blood Accelerates Hemolysis and Oxidative Injury to Red Blood Cells

2020 ◽  
Vol 12 (04) ◽  
pp. 244-249
Author(s):  
Ibrahim Mustafa ◽  
Tameem Ali Qaid Hadwan
Keyword(s):  
Red Blood Cells ◽  
Blood Cells ◽  
Morphological Changes ◽  
Hemoglobin Concentration ◽  
Red Cell Membrane ◽  
Rbc Membrane ◽  
Hemoglobin Oxidation ◽  
Rbc Indices ◽  
Methemoglobin Formation ◽  
Stored Blood

Abstract Introduction Maintaining blood supply is a challenge in blood banks. Red blood cells (RBCs) stored at 4°C experience issues of biochemical changes due to metabolism of cells, leading to changes collectively referred to as “storage lesions.” Oxidation of the red cell membrane, leading to lysis, contributes to these storage lesions. Methods Blood bags with CPD-SAGM stored at 4°C for 28 days were withdrawn aseptically on days 1, 14, and 28. Hematology analyzer was used to investigate RBC indices. Hemoglobin oxidation was studied through spectrophotometric scan of spectral change. RBC lysis was studied with the help of Drabkin's assay, and morphological changes were observed by light and scan electron microscopy. Results RBCs show progressive changes in morphology echinocytes and spherocytes on day 28. There was 0.85% RBC lysis, an approximately 20% decrease in percentage oxyhemoglobin, and a 14% increase in methemoglobin formation, which shows hemoglobin oxidation on day 28. Conclusions Oxidative damage to RBC, with an increase in storage time was observed in the present study. The observed morphological changes to RBC during the course of increased time shows that there is progressive damage to RBC membrane and a decrease in hemoglobin concentration; percentage RBC lysis is probably due to free hemoglobin and iron.

scholarly journals STUDIES ON STORED BLOOD

1943 ◽  
Vol 1 (5) ◽  
pp. 59-59
Author(s):  
A. Crosbie ◽  
J. W. Czekalowski ◽  
H. Scarborough ◽  
C. P. Stewart ◽  
J. C. Thompson
Keyword(s):  
Stored Blood
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