Treatment of Helicobacter pylori infection is important for the management of gastrointestinal disorders such as peptic ulcer and gastric cancer. Due to the increase in the prevalence of H. pylori resistance to antibiotics, triple therapy with clarithromycin is no longer the best treatment for H. pylori, especially in some areas where the local resistance to this antibiotic is higher than 20%. Alternative treatments have been proposed for the eradication of H. pylori. Some of them including novel antibiotics or classical ones in different combinations; these treatments are being used in the regular clinical practice as novel and more effective treatments. Others therapies are using probiotics associated to antibiotics to treat this infection.The present article is a revision of H. pylori eradication treatment, focusing on emerging approaches to avoid the treatment failure, using new therapies with antimicrobials or with probiotics.
From the results it can be concluded that, although the analysed smoked cheese consisted of three groups of compounds, the first derived from biochemical reactions (free fatty acids, esters, ketones, alcohols, aldehydes, sulfur compounds), the second from smoking (furans and furanones, phenols) and the third from milk flavour (terpenes), it is the smoking process that mainly influences its typical flavour.
ObjectivesTo use the glucose–fructose oxidoreductase (GFOR) from Zymomonas mobilis and expressed in Escherichia coli for lactobionic acid production by conversion of lactose from whey.ResultsThe highest concentrations of lactobionic acid (3.2 mg ml−1) during oxidation of whey-derived lactose by E. coli was at 24 h. Introduction of GFOR gene from Z. mobilis, into E. coli improved enzyme yields compared to what is obtainable by fermentation of the donor strain. The production of lactobionic acid by E. coli was 2.6-times higher than by Z. mobilis.ConclusionsRecombinants of E. coli overexpressing the GFOR gene from Z. mobilis produced higher amount of lactobionoic acid from whey-derived lactose.
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