Validation of ethanol determination in alcoholic beverages by infrared spectrophotometry using orthogonal and derivative functions to correct for water absorption

1992 ◽  
Vol 3 (2) ◽  
pp. 133-138 ◽  
Author(s):  
P. López Mahía ◽  
J. Simal Gándara ◽  
P. Paseiro Losada
2010 ◽  
Vol 168 (1-2) ◽  
pp. 141-145 ◽  
Author(s):  
Serap Seyhan Bozkurt ◽  
Erinc Merdivan ◽  
Yalim Benibol

2016 ◽  
Vol 191 ◽  
pp. 1001-1009 ◽  
Author(s):  
Mauro Tomassetti ◽  
Riccardo Angeloni ◽  
Giovanni Merola ◽  
Mauro Castrucci ◽  
Luigi Campanella

2021 ◽  
pp. 16-16
Author(s):  
Emilija Kostic ◽  
Maja Vujovic ◽  
Biljana Milosavljevic

A simple, cost-effective and fast headspace gas chromatography method coupled with flame ionization detection (HS-GC/FID) for determination of ethanol was developed and validated for clinical and forensic toxicology purposes. HS-GC/FID is often used for alcohol determination in different biological and non-biological samples. The calibration dependence of the method was linear in the range from 0.15 to 4.00 g dm-3 (r2=0.999) with adequate accuracy (99-106 %) and precision. The limit of detection (LOD) was 0.006 g dm-3. The method was quantitative (LOQ) above 0.020 g dm-3. The new method was successfully used for determination of ethanol in biological samples of intoxicated patients, car accidents participants, participants in criminal acts, and postmortem samples, non-biological samples such as alcoholic beverages, alcohol-based herbal preparations, cosmetic preparations, etc. This method is easy to perform, making it suitable not only for the routine applications in clinical biochemistry and forensic laboratories, but also in different fields of industry (e.g. for pharmaceutical preparations, cosmetics, dietary supplements, etc.). Some of the applications for ethanol determination in different samples related to various clinical-forensic cases are presented.


2014 ◽  
Vol 11 (1) ◽  
pp. 56-67 ◽  
Author(s):  
Riccardo Angeloni ◽  
Mauro Tomassetti ◽  
Mauro Castrucci ◽  
Luigi Campanella

2004 ◽  
Vol 513 (1) ◽  
pp. 119-123 ◽  
Author(s):  
Lucian Rotariu ◽  
Camelia Bala ◽  
Vasile Magearu

2019 ◽  
pp. 311-315
Author(s):  
Jasmina Vitas ◽  
Stefan Vukmanovic ◽  
Radomir Malbasa ◽  
Aleksandra Tepic-Horecki

The aim of this paper was ethanol content determination in kombucha products obtained by fermentation of effluent from white wine production. Used substrate contained 5% of total sugars and production process was conducted at 20, 25 and 30?C. Ethanol was determined by volumetric method common for ethanol determination in refreshing non-alcoholic beverages. Winery effluent was successfully applied in kombucha fermentation process. Results indicated that the produced kombucha beverages are suitable for human consumption as non-alcoholic beverages. Only products obtained at 30?C (the sixth day) and at 20?C (the sixth and the ninth day) do not belong to the group of non-alcoholic beverages. Certain process parameters were established in order to produce suitable kombucha product.


Author(s):  
Simerpreet Kukreja

Introduction: Cigarette smoking induces many chronic illnesses, but in developed countries it is a preventable risk factor. However, by increasing the protective protection mechanism, it may be possible to alleviate the smoke-induced damage. As smoking risk is minimised by vitamin C intake, it is recommended that smokers should take more vitamin C. This inverse correlation between both vitamin C intake and serum levels and smoking was independent of age, sex, body weight, ethnicity, and consumption of alcoholic beverages. The negative association between cigarette smoking and serum vitamin C levels continued, following further adjustment for dietary vitamin C intake. The risk of severe hypovitaminosis C, especially when not accompanied by vitamin supplementation, has been increased in smokers. These data indicate that the inverse relationship between smoking and serum vitamin C levels exists independently of dietary intake, while smoking adversely affects preferences for vitamin C rich foods. Methods: A survey method was performed, with 50 smokers (S) receiving either 500 mg of vitamin C or placebo (P) daily for 4 weeks, and 50 non-smokers receiving vitamin C without supplementation. All finished the hearing. Both groups were equal and C: 14.2 + /- 1.8 pack-years was the amount of cigarettes smoked. Concentrations of plasma vitamin C increased significantly (p < 0.005) only in the vitamin C supplement community.  Results: At SMHRC Hospital Nagpur, we examined the relationship between smoking and vitamin C status, dietary and serum vitamin C levels of 100 participants. Smokers of 20 cigarettes a day had the lowest dietary intake of vitamin C and serum levels, whereas smokers of 1-19 cigarettes a day had lower intake of vitamin C and serum levels (compared to respondents who had never smoked. This inverse correlation between vitamin C and smoking intake and serum levels was independent of age, sex, body weight, race, and consumption of alcoholic beverages. The negative association between cigarette smoking and serum vitamin C levels continued, following further adjustment for dietary vitamin C intake. In smokers, the risk of severe hypo-vitaminosis C, particularly when not accompanied by vitamin supplementation, has increased. Conclusion: These data indicate that the inverse relationship between smoking and serum vitamin C levels exists independently of dietary intake, while smoking adversely affects preferences for vitamin C rich foods. A balanced diet for smokers will obtain a hearty recommendation at this time, but guidelines should remain cautious about high-dose nutrition supplements. Keywords: Chain Smoker, Vitamin C, hypo-vitaminosis C and cigarette.


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