Abstract:
:Levels of protein carbonylation in peach fruits inoculated with four antagonistic yeasts (Pichia membranaefaciens, Cryptococcus laurentii, Candida guilliermondii and Rhodotorula glutinis) were significantly reduced in response to reactive oxygen species (ROS) caused by Monilinia fructicola. In control fruit without yeast treatments, proteins carbonylation obviously increased after inoculation with M. fructicola, ranging from molecular mass 20 to 120 kDa. However, in yeast-treated fruits, no proteins carbonylation was detected at 1 d, only a small quantity of carbonylation ranging from 28.5 to 45 kDa was found at 2 d. Antagonistic yeasts significantly stimulated the activities of chitinase, beta-1,3-glucanase, catalase (CAT), peroxidase (POD) and the expressions of relevant genes during all storage periods. These results suggest that yeast treatments may be related to alleviating proteins carbonylation and mitigating pathogen-induced oxidative damage, which result in decrease of fruit decay and imply that antioxidant defense response may be involved in the mechanisms of microbial biocontrol agents against fungal pathogen.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Xu X,Qin G,Tian Sdoi
10.1016/j.ijfoodmicro.2008.05.019subject
Has Abstractpub_date
2008-08-15 00:00:00pages
153-8issue
1-2eissn
0168-1605issn
1879-3460pii
S0168-1605(08)00277-8journal_volume
126pub_type
杂志文章abstract::The objective of this study was to develop a predictive model for the inactivation of Salmonella spp. in ground beef jerky as a function of temperature (T), pH, potassium sorbate (PS), and final water activity (aw). Following a central composite design, ground beef was combined with PS (0 to 0.3%, w/w), pH adjusted fr...
journal_title:International journal of food microbiology
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journal_title:International journal of food microbiology
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journal_title:International journal of food microbiology
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journal_title:International journal of food microbiology
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