A rapid analytical method for bioactives in edible oils

2017 ◽  
Vol 28 (1) ◽  
pp. 22-25
Author(s):  
Clare Flakelar ◽  
◽  
Paul Prenzler
Keyword(s):  
Analytical Method ◽  
Edible Oils

A new, direct analytical method using LC-MS/MS for fatty acid esters of 3-chloro-1,2-propanediol (3-MCPD esters) in edible oils

2013 ◽  
Vol 30 (1) ◽  
pp. 52-68 ◽  
Author(s):  
K. Yamazaki ◽  
M. Ogiso ◽  
S. Isagawa ◽  
T. Urushiyama ◽  
T. Ukena ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Analytical Method ◽  
Edible Oils ◽  
Fatty Acid Esters ◽  
Mcpd Esters ◽  
Acid Esters

scholarly journals A New Analytical Method for the Quantification of Glycidol Fatty Acid Esters in Edible Oils

2010 ◽  
Vol 59 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Yoshinori Masukawa ◽  
Hiroki Shiro ◽  
Shun Nakamura ◽  
Naoki Kondo ◽  
Norikazu Jin ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Analytical Method ◽  
Edible Oils ◽  
Fatty Acid Esters ◽  
Acid Esters

A new, direct analytical method using LC-MS/MS for fatty acid esters of 3-chloro-1,2-propanediol (3-MCPD esters) in edible oils

2013 ◽  
Vol 30 (2) ◽  
pp. 412-412 ◽  
Author(s):  
K. Yamazaki ◽  
M. Ogiso ◽  
S. Isagawa ◽  
T. Urushiyama ◽  
T. Ukena ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Analytical Method ◽  
Edible Oils ◽  
Fatty Acid Esters ◽  
Mcpd Esters ◽  
Acid Esters

scholarly journals Greener Analytical Method for Determination of Iodine Number of Edible Oils

2020 ◽  
Vol 9 (6) ◽  
pp. 36
Author(s):  
Thidarat Kruatian ◽  
Kritsana Jitmanee
Keyword(s):  
Iodine Number ◽  
Standard Method ◽  
Analytical Method ◽  
Present Method ◽  
Edible Oils ◽  
Classical Method ◽  
Sample Weight ◽  
Number Range ◽  
Significant Difference

A greener analytical method for determination of iodine number (IN) of oils is presented. As per the AOAC standard method, a large amount of solvent and reagent was used, and long incubation time was required. This research is aimed at using less amount of solvent and reagent, less sample weight, and shorten the analysis time by using the modified titrimetric AOAC standard method. The study showed that by reducing the sample size, the amount of reagent could be decreased to 1.00 mL and the reaction time of 1 min is enough for completion of the reaction. The amount of reagent used was at least 25 times less than that of the classical method. There was no significant difference at 95% confidence level between the results obtained by the proposed method and the standard method, and both results correlated well. The present method can be applied to edible oils commonly found in the market (iodine number range of 6.0 to 130).

scholarly journals Novel fast analytical method for indirect determination of MCPD fatty acid esters in edible oils and fats based on simultaneous extraction and derivatization

2017 ◽  
Vol 409 (17) ◽  
pp. 4267-4278 ◽  
Author(s):  
Renata Jędrkiewicz ◽  
Agnieszka Głowacz-Różyńska ◽  
Justyna Gromadzka ◽  
Piotr Konieczka ◽  
Jacek Namieśnik
Keyword(s):  
Fatty Acid ◽  
Analytical Method ◽  
Edible Oils ◽  
Fatty Acid Esters ◽  
Simultaneous Extraction ◽  
Indirect Determination ◽  
Acid Esters

Densitometric Identification of Primitive Erythroblasts After Reaction With Diaminobenzidine

1973 ◽  
Vol 31 ◽  
pp. 328-329
Author(s):  
John A. Trotter
Keyword(s):  
Red Blood Cells ◽  
Analytical Method ◽  
Blood Cells ◽  
Guinea Pigs ◽  
Specific Protein ◽  
Visual Examination ◽  
Hemoglobin Synthesis ◽  
Peroxidatic Activity ◽  
Small Density

Hemoglobin is the specific protein of red blood cells. Those cells in which hemoglobin synthesis is initiated are the earliest cells that can presently be considered to be committed to erythropoiesis. In order to identify such early cells electron microscopically, we have made use of the peroxidatic activity of hemoglobin by reacting the marrow of erythropoietically stimulated guinea pigs with diaminobenzidine (DAB). The reaction product appeared as a diffuse and amorphous electron opacity throughout the cytoplasm of reactive cells. The detection of small density increases of such a diffuse nature required an analytical method more sensitive and reliable than the visual examination of micrographs. A procedure was therefore devised for the evaluation of micrographs (negatives) with a densitometer (Weston Photographic Analyzer).

Bulk standards for low-temperature biological x-ray microanalysis

1984 ◽  
Vol 42 ◽  
pp. 282-283
Author(s):  
P. Echlin ◽  
M. McKoon ◽  
E.S. Taylor ◽  
C.E. Thomas ◽  
K.L. Maloney ◽  
...  
Keyword(s):  
Phase Separation ◽  
Low Temperature ◽  
Analytical Method ◽  
Salt Solutions ◽  
Absolute Concentration ◽  
Cooling Process ◽  
X Ray ◽  
The Absolute ◽  
Analytical Procedures ◽  
Electrical Conductors

Although sections of frozen salt solutions have been used as standards for x-ray microanalysis, such solutions are less useful when analysed in the bulk form. They are poor thermal and electrical conductors and severe phase separation occurs during the cooling process. Following a suggestion by Whitecross et al we have made up a series of salt solutions containing a small amount of graphite to improve the sample conductivity. In addition, we have incorporated a polymer to ensure the formation of microcrystalline ice and a consequent homogenity of salt dispersion within the frozen matrix. The mixtures have been used to standardize the analytical procedures applied to frozen hydrated bulk specimens based on the peak/background analytical method and to measure the absolute concentration of elements in developing roots.

The synephrine content of Shiikuwasha (Citrus depressa HAYATA) fruit: Analytical method and change during fruit growth

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
K Miyagi ◽  
T Fujise ◽  
N Koga ◽  
K Wada ◽  
M Yano ◽  
...  
Keyword(s):  
Analytical Method ◽  
Fruit Growth ◽  
Citrus Depressa
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