Long-term storage oxidation stability of Karanja biodiesel with the use of antioxidants

2013 ◽  
Vol 106 ◽  
pp. 447-452 ◽  
Author(s):  
Avinash Kumar Agarwal ◽  
Deepak Khurana
Keyword(s):  
Oxidation Stability ◽  
Long Term Storage ◽  
Term Storage

scholarly journals Evaluation of Technological Properties and Oxidative Stability of Organic Dry Fermented Probiotic Sausages During Long-Term Storage

2012 ◽  
Vol 56 (3) ◽  
pp. 305-314 ◽  
Author(s):  
Karolina M. Wójciak ◽  
Monika Trząskowska ◽  
Danuta Kołożyn-Krajewska ◽  
Zbigniew J. Dolatowski
Keyword(s):  
Oxidative Stability ◽  
Ph Value ◽  
Oxidation Stability ◽  
Storage Period ◽  
Probiotic Strain ◽  
Peroxide Number ◽  
Sodium Ascorbate ◽  
Long Term Storage ◽  
Term Storage

Abstract The objective of this work was to study the oxidative stability of organic dry fermented probiotic sausages during long-term storage (6 months). Four test samples were prepared: sample A - control sausage, sample B - with 0.05% addition of sodium ascorbate, sample C - with addition of Lb. casei LOCK 0900 (2x106 CFU/g) probiotic strain, 0.6% of glucose, and 0.05% of sodium ascorbate, and sample D - with 0.05% of sodium ascorbate, probiotics, and 0.6% of lactose. The study covered evaluation of the ripening process (21 d) by evaluating loss in the sausage weight. The pH value, oxidation-reduction potential, TBARS values, acid number, peroxide number, browning index after ripening (0) and after 2nd, 4th, and 6th month of chilling storage were identified. The total colour difference of sausages subjected to 3 h exposure to fluorescent light, texture parameters, and count of lactic acid bacteria (LAB) were identified after ripening (0) and after 6 months of storage. It was observed that an addition of probiotic bacteria and glucose (sample C) contributed to a significant decrease in the pH value and water activity in the sausage directly after ripening and during the entire chilling storage period. In samples with probiotics the option with glucose had a lower (P≤0.05) pH value by ca. 0.5 unit as compared to the sample with lactose. Significantly higher (P≤0.05) values of TBARS were observed in samples with probiotics as compared to control samples. The greatest oxidation stability during the entire chilling storage period was found in the sample with sodium ascorbate. Among samples with probiotic strain, the sample with glucose had the lowest peroxide number value (0.58-3.56 meqO2/kg) and TBARS (1.10-2.08 mg MDA/kg) but also the greatest colour stability during exposure to light. The order of decline in oxidative stability was: sample B > sample C > sample D > sample A.

Studies on the effect of antioxidants on the long-term storage and oxidation stability of Pongamia pinnata (L.) Pierre biodiesel

2012 ◽  
Vol 99 ◽  
pp. 56-63 ◽  
Author(s):  
Asir Obadiah ◽  
Ramanujam Kannan ◽  
Alagunambi Ramasubbu ◽  
Samuel Vasanth Kumar
Keyword(s):  
Oxidation Stability ◽  
Pongamia Pinnata ◽  
Long Term Storage ◽  
Term Storage

Modelling of Moisture Movement in Wood during Outdoor Storage

2001 ◽  
Vol 6 (2) ◽  
pp. 3-14 ◽  
Author(s):  
R. Baronas ◽  
F. Ivanauskas ◽  
I. Juodeikienė ◽  
A. Kajalavičius
Keyword(s):  
Experimental Data ◽  
Finite Difference ◽  
Climatic Conditions ◽  
Two Dimensional ◽  
Moisture Movement ◽  
Finite Difference Technique ◽  
Long Term Storage ◽  
Space Formulation ◽  
Term Storage

A model of moisture movement in wood is presented in this paper in a two-dimensional-in-space formulation. The finite-difference technique has been used in order to obtain the solution of the problem. The model was applied to predict the moisture content in sawn boards from pine during long term storage under outdoor climatic conditions. The satisfactory agreement between the numerical solution and experimental data was obtained.

Trehalose: a cryoprotectant that enhances recovery and preserves function of human pancreatic islets after long-term storage

Diabetes ◽  
1997 ◽  
Vol 46 (3) ◽  
pp. 519-523 ◽  
Author(s):  
G. M. Beattie ◽  
J. H. Crowe ◽  
A. D. Lopez ◽  
V. Cirulli ◽  
C. Ricordi ◽  
...  
Keyword(s):  
Pancreatic Islets ◽  
Human Pancreatic Islets ◽  
Long Term Storage ◽  
Term Storage
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