Production process of vinegar could be synthesized by chemical or microbiological. In Islam, vinegar must not be consumed if contains ethanol ≥ 1%, because it is categorized into khamr. The maximum concentration of vinegar fermentation is 1,0 %. This research was to analyze the alcohol compund that consist in vinegar. The validation method that used in this study are: selectivity, linearity, range, precision, accuracy, LOD and LOQ. The analysis instrument was gas chromatography Agilent 6890 Series GC System, with a Flame Ionization Detector (FID) and a column HP-5 (5% Phenyl 95% Methyl Siloxane), and optimal conditions were obtained by using temperature of inlet and detector of 250°C whilst the temperature of oven programed initially at 40°C, hold for 5 minutes, and raised to 5°C/min to 200°C. were used in this study. For split ratio was achieved at 50:1 and the injection volume was 1.0µl. The methods were proven selective and demonstrated linearity, precision and accuracy with r = 0.9995; 5,63% and 101,25%, respectively. On the other hand, the methods were proven that the sample contains alcohol. Finally, the result of quantitative ethanol contents analysis in vinegar from Saudi Arabia is 2,28.10-2 % v/v; and vinegar brand “x” from market in Surabaya is 1,17.10-2 v/v.
The halal aspect is an important factor that must be considered by Muslims in choosing food. However, the low awareness and knowledge related to halal rules and thoyyib on food had caused various serious problems. To overcome this, several government regulations have been issued, but some people still find it difficult to understand the concept of halal products. In this regard, the Faculty of Pharmacy, Airlangga University through community service conducted socialization in two schools in Rungkut Surabaya district to increase community empowerment about halal lifestyle and the critical point of food prohibition at the young generation. The method used is an online pre-test to determine the initial understanding of the participants, education in the form of counseling and discussion, and evaluation of increased understanding through pre and post-test. As partners are students, teachers, and canteen managers in Madrasah Aliyah and Madrasah Tsanawiyah school grade. Based on the analysis conducted, the results show a strong correlation between halal certification, halal awareness, and halal composition. Socialization can increase the knowledge of students and employees in those schools about the halal lifestyle and the critical point of food prohibition. Halal certification on food products affects buying interest but halal awareness and knowledge about the composition of halal food is still low in its influence on buying interest
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