scholarly journals Net Analyte Signal-based Quantitative Determination of Fusel Oil in Korean Alcoholic Beverage Using FT-NIR Spectroscopy

2016 ◽  
Vol 41 (3) ◽  
pp. 208-220 ◽  
Author(s):  
Santosh Lohumi ◽  
Lalit Mohan Kandpal ◽  
Young Wook Seo ◽  
Byoung Kwan Cho
Keyword(s):  
Quantitative Determination ◽  
Alcoholic Beverage ◽  
Nir Spectroscopy ◽  
Fusel Oil ◽  
Net Analyte Signal ◽  
Analyte Signal

scholarly journals Determination of Caffeine and Taurine Contents in Energy Drinks by HPLC-UV

2016 ◽  
Vol 9 ◽  
pp. 66-73 ◽  
Author(s):  
Krishna Prasad Rai ◽  
Hasta Bahadur Rai ◽  
Santosh Dahal ◽  
Saroj Chaudhary ◽  
Suraj Shrestha
Keyword(s):  
Amino Acids ◽  
Pilot Study ◽  
Quantitative Determination ◽  
Physiological Responses ◽  
Alcoholic Beverage ◽  
Energy Drinks ◽  
Energy Drink ◽  
Young Generation ◽  
Caffeine Content

Energy drinks are non-alcoholic beverage intended to enhance the psycho-physiological responses in human, which is especially popular among young generation in Nepal. It is normally high caffeinated drink added with other ingredients such as carbohydrates, amino acids, B-group of vitamins etc. In this study, 10 brands of energy drink available in Nepalese markets were taken then analyzed for quantitative determination of Caffeine and Taurine by HPLC-UV method. From the result obtained, pH and TSS values of energy drinks were found in the range of 2.96-3.81 and 6.64-18.21 respectively. Likewise, the Caffeine and Taurine content in same samples were found in the range of not detected (ND) to 35.78 mg/100 ml and ND to 387.5 mg/100 ml respectively. Only the 6 samples out of 10 were confi rmed caffeine content as per claimed in label, while only 3 samples were confi rmed for Taurine content as per label claimed. Based on this pilot study, the majority of samples did not meet the label claims in term of Caffeine and Taurine, which apparently indicated the misbranding of such drinks. Since, there is no any regulation for such energy drinks in Nepal, it seems to be a great challenge for regulation of their safety and misbranding.

Collaborative Study of the Quantitative Determination of Fusel Oil and Ethyl Acetate by Gas-Liquid Chromatography

1968 ◽  
Vol 51 (4) ◽  
pp. 915-921
Author(s):  
Richard L Brunelle
Keyword(s):  
Liquid Chromatography ◽  
Quantitative Determination ◽  
Ethyl Acetate ◽  
Simultaneous Determination ◽  
Collaborative Study ◽  
Gas Liquid Chromatography ◽  
Fusel Oil ◽  
Preliminary Work ◽  
Standard Deviations

Abstract Thirteen chemists representing twelve laboratories participated in a collaborative study for the quantitative determination of ethyl acetate and fusel oil by GLC. The results on four samples containing various amounts of ethyl acetate and fusel oil were compared with the official AOAC procedures. For all samples, the standard deviations were lower with GLC. Collaborators preferred the GLC procedure because the simultaneous determination of ethyl acetate and n-propyl, iso-butyl, and isoamyl alcohols is possible. Results from preliminary work performed on the quantitative determination of acetaldehyde by GLC were encouraging. It is recommended that the proposed GLC procedure for the quantitative determination of ethyl acetate and fusel oil be adopted as official, first action, and that work be continvied on the determination of acetaldehyde by GLC.

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