Document Detail

Effect of storage time and natural corrosion inhibitor on carbohydrate and carboxylic acids content in canned tomato puree.
MedLine Citation:
PMID:  22701055     Owner:  NLM     Status:  In-Data-Review    
In this research compositional changes of tinplate-canned tomato purées, with or without the addition of essential onion oil were investigated. The study was focused on the analyses of carbohydrates and carboxylic acids in two groups of canned samples (with or without nitrates) to determine whether their chemical composition was affected with storage time. The measurements were performed by high performance liquid chromatography, during six months of storage. The contents of glucose, fructose and two major organic acids, citric and malic, were found in the concentration range 1.77-1.97%, 1.86-2.09%, 0.60-0.75% and 0.23-0.30%, respectively, in all canned samples. Compared to carbohydrates and organic acids, amino acids were found in minor quantities, among them, as most abundant ones were glutamic acid, arginine, aspartic and γ-amino butyric acids. The results show that contents of carbohydrates and carboxylic acids are significantly affected by the change of storage time in majority of analyzed samples. The results also indicated that the influence of essential onion oil on composition of canned tomato purée is within the range of changes due to storage time measured for all other types of cans. Therefore the addition of essential onion oil as natural efficient corrosion inhibitor, as it was found in our previous work, can be recommended for canned tomato purée.
A Nincevic Grassino; Z Grabaric; F De Sio; D Cacace; A Pezzani; G Squitieri
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Food science and technology international = Ciencia y tecnología de los alimentos internacional     Volume:  18     ISSN:  1082-0132     ISO Abbreviation:  Food Sci Technol Int     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-06-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889534     Medline TA:  Food Sci Technol Int     Country:  United States    
Other Details:
Languages:  eng     Pagination:  219-28     Citation Subset:  IM    
1Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva, Zagreb, Croatia.
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