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Title

Determination of ethanol content in industrial and domestic vinegar samples by headspace-gas chromatography

Year: 1399
COI: JR_JHHHM-1-2_010
Language: EnglishView: 68
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Authors

Zeinab Pourjabbar - Drug and Food Control Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
Maryam Noohi - Drug and Food Control Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
Fatemeh Salami - Drug and Food Control Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
Mohsen Amini - Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
Naficeh Sadeghi - Drug and Food Control Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Halal Research Center of IRI., Ministry of Health and Medical Education, Tehran, Iran.
Mannan Hajimahmoodi - Drug and Food Control Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Abstract:

Background and objective: Vinegar, as a traditional fermented product, plays a significant role in human health and nutrition. This product is produced in different types industrially or domestically. Under production, the vinegar may contain ethanol that its inclusion is banned in the foods by Islam and its content should be adapted to the legislations developed in Islamic countries. Therefore, at this study we measured ethanol concentration of vinegars distributed in Tehran (capital city of Iran). Materials and methods: Headspace-gas chromatograph equipped with flame ionization detector was developed for determination of ethanol. Acetonitrile and nitrogen were used as internal standard and carrier gas, respectively. For analysis, 140 samples (37 domestic and 103 industrial vinegars) were purchased from local market. Results and conclusion: Our developed method could successfully determine the ethanol content at low concentration. In this regard, LOD, LOQ, and recovery were 0.0069% v/v, 0.021% v/v, and 100.14%, respectively. In 13 samples, the ethanol content was higher than 0.5% v/v that is the maximum limit determined by Iranian national standard. Out of 13 samples, 10 vinegars were domestically prepared. Evaluation of our results revealed that ethanol concentration in domestic vinegars was higher than industrial products. Therefore, domestic production of vinegars should be controlled and monitored strictly.

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This Paper COI Code is JR_JHHHM-1-2_010. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1170712/

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Pourjabbar, Zeinab and Noohi, Maryam and Salami, Fatemeh and Amini, Mohsen and Sadeghi, Naficeh and Hajimahmoodi, Mannan,1399,Determination of ethanol content in industrial and domestic vinegar samples by headspace-gas chromatography,https://civilica.com/doc/1170712

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Type of center: علوم پزشکی
Paper count: 8,116
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