scholarly journals Potassium Iodate: A New Versatile Reagent to Determine the Iodine Value of Edible Oils

2021 ◽  
Vol 11 (2) ◽  
pp. 3537-3541
Keyword(s):  
Iodine Value ◽  
Edible Oils ◽  
Sodium Thiosulfate ◽  
Fatty Material ◽  
Potassium Iodate ◽  
Standard Methods ◽  
Ethanoic Acid ◽  
Standard Solution ◽  
Versatile Reagent

Iodine value is regarded as one of the essential parameters to establish edible oils' quality and identity. The research paper describes a simple visual titrating procedure to ascertain the iodine number of oils. The method involves adding potassium iodate to polyunsaturated constituents (alkene double bonds) in fatty material along with ethanoic acid, followed by the determination of unreacted potassium iodate by titrating against a standard solution of sodium thiosulfate in the presence of potassium iodide via the iodometric method. The iodine value of various edible oils determined by the new reagent potassium iodate was found to agree with the results of standard methods like the Hnaus method.

scholarly journals Evaluation of Analytical Results Obtained From Standard AOAC Method and Accelerated Wijs Method for the Determination of Iodine Value of Different Brands of Mustard Edible Oils

2020 ◽  
Vol 5 (8) ◽  
pp. 1323-1327
Author(s):  
Dr. Shashikant Pardeshi
Keyword(s):  
Iodine Value ◽  
Edible Oils ◽  
Mercuric Acetate ◽  
Rapid Determination ◽  
Mustard Oil ◽  
Powder Form ◽  
Engine Oils ◽  
Wijs Method ◽  
Aoac Method

In the present work, accelerated method is used for the measurement of iodine value, wherein mercuric acetate is directly used in the powder form. The method only requires to add the catalyst mercuric acetate in the process of determination without changing the operational steps of the Wijs method. Compared with the Wijs method in which it will take at least 30 minutes to finish it, the rapid determination method can make the determination reaction finished in 3 minutes. The iodine value of different vegetable oils such as Kacchighani mustard oil (Kgmu, Dalda),Kacchighani mustard oil (Kgmu1,Mahakosh), Kacchighani mustard oil (Kgmu2,Tez),premium mustard oil kacchighaani (Pmukg, RRO Mustdil), Kacchighani mustard oil (Kgmu3,Nature fresh) and Kacchighani mustard oil (Kgmu4, Engine)oils were determined by regular Wijs method for 30 minutes whereas when we apply catalytic Wijs method with use of 2 mg, 5 mg and 10 mg of mercuric acetate to perform as catalyst then it is reducing the time of analysis to 3 minutes. When catalyst is used the different values obtained for standard deviations are 0.14 for 2mg, 0.27for 5mg and 0.3 for 10 mg whereas 0.35 for non catalyst addition. The results obtained in this present work aremore % difference in IV of pure kacchighani mustard oil (Pkgmu)and Kacchighani mustard oil (Kgmu2).

Iodine value determination of edible oils using ATR-FTIR and chemometric methods

2017 ◽  
Vol 119 (9) ◽  
pp. 1600323 ◽  
Author(s):  
Xianghe Meng ◽  
Qin Ye ◽  
Xiaohua Nie ◽  
Lianzhou Jiang
Keyword(s):  
Iodine Value ◽  
Edible Oils ◽  
Chemometric Methods ◽  
Value Determination

scholarly journals Development and validation of a gas chromatography method for the determination of β-caryophyllene in clove extract and its application

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mi Hee Park ◽  
Chul Jin Kim ◽  
Jin Young Lee ◽  
In Seon Kim ◽  
Sung-Kyu Kim
Keyword(s):  
Active Constituent ◽  
Chromatography Method ◽  
Ich Guidelines ◽  
Specificity Test ◽  
Detection Response ◽  
Standard Solution ◽  
Clove Extract ◽  
Pharmaceutical Uses ◽  
Development And Validation

AbstractThe purpose of this study is to check the effectiveness of the analysis method that separates and quantifies β-caryophyllene among clove extracts and validate according to current ICH guidelines. The β-caryophyllene was active constituent of clove buds. The developed method gave a good detection response. In the specificity test, the standard solution was detected at about 17.32 min, and the test solution was detected at 17.32 min. The linearity of β-caryophyllen was confirmed, and at this time, the correlation coefficient (R2) of the calibration curve showed a high linearity of 0.999 or more in the concentration range. The levels of LOD and LOQ were 1.28 ug/mL and 3.89 ug/mL, respectively. The accuracy was confirmed to be 101.6–102.2% and RSD 0.95 ~ 1.31%. As a result of checking the repeatability and inter-tester reproducibility to confirm the precision, the RSD was found to be 1.34 ~ 2.69%. This validated GC method was successfully applied to a soft capsule containing clove extract and other materials for clinical trials. Therefore, this method can be used as an analytical tool for quality control of various samples, including clove extracts and their products of food and pharmaceutical uses.

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