Abstract：
:Many lactic acid bacteria synthesize extracellular polysaccharides (exopolysaccharides, EPSs) with a large variation in structure and potential functional properties. Although EPS production can produce detrimental effects in alcoholic beverages, these polymers play an important role in the rheological behavior and texture of fermented products. In this work, EPS production by two Lactobacillus suebicus strains, which were isolated from ropy ciders, was examined in a semidefined medium. The existence of priming glycosyltransferase encoding genes was detected by PCR. In addition, the preliminary characterization of the polymers was undertaken. Molecular masses were determined by size exclusion chromatography revealing the presence of two peaks, corresponding to polymers of high- and low-molecular-weight in all fractions. The composition of the EPS fractions was analyzed by gas chromatography-mass spectrometry after acid hydrolysis, revealing that they contained glucose, galactose, N-acetylglucosamine and phosphate, although in different ratios, suggesting that a mixture of polysaccharides is being synthesized. We also examined the influence of the sugar source (glucose, ribose, xylose, or arabinose) and pH conditions on growth and EPS production.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Ibarburu I,Puertas AI,Berregi I,Rodríguez-Carvajal MA,Prieto A,Dueñas MTdoi
10.1016/j.ijfoodmicro.2015.07.012subject
Has Abstractpub_date
2015-12-02 00:00:00pages
54-62eissn
0168-1605issn
1879-3460pii
S0168-1605(15)30066-0journal_volume
214pub_type
杂志文章abstract：:Yeasts play a central role in the spoilage of foods and beverages, mainly those with high acidity and reduced water activity (a(w)). A few species are capable of spoiling foods produced according to good manufacturing practices (GMPs). These can survive and grow under stress conditions where other microorganisms are n...
journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
doi：10.1016/s0168-1605(03)00246-0
更新日期：2003-09-01 00:00:00
abstract：:Unpasteurized fruit juice and cider have been implicated in outbreaks of Escherichia coli O157:H7 and Salmonella infections, yet various processes used to clean and sanitize fruits before producing juice have not been thoroughly studied for their effectiveness in removing pathogens. The objective of this study was to ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(01)00716-4
更新日期：2002-03-25 00:00:00
abstract：:This study was conducted to investigate the efficacy of radio-frequency (RF) heating to reduce Salmonella enterica serovars Enteritidis, Typhimurium, and Senftenberg in raw shelled almonds compared to conventional convective heating, and the effect of RF heating on quality by measuring changes in the color and degree ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2017.04.007
更新日期：2017-08-02 00:00:00
abstract：:Predictive microbiology is the area of food microbiology that attempts to forecast the quantitative evolution of microbial populations over time. This is achieved to a great extent through models that include the mechanisms governing population dynamics. Traditionally, the models used in predictive microbiology are wh...
journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
doi：10.1016/j.ijfoodmicro.2009.01.016
更新日期：2009-08-31 00:00:00
abstract：:The present study evaluated the physico-chemical and microbiological features of Ventricina, considering for the first time the presence of different compartments deriving from the technology of production. In fact meat pieces (pork muscle and fat cut into cubes of about 10-20cm3), mixed with other ingredients and the...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2016.11.009
更新日期：2017-02-02 00:00:00
abstract：:Shiga toxin (Stx)-producing Escherichia coli (STEC) are amongst major causes of food-borne infectious diseases and outbreaks. A new quantitative PCR (qPCR) assay was designed to detect all known stx gene subtypes in a single reaction, including the most distant variant stx2f. Performance of this assay was evaluated in...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2011.07.039
更新日期：2011-11-15 00:00:00
abstract：:For the first time, this study evaluates consumer exposure via poultry meat to Enterobacteriaceae with capacity to develop severe extraintestinal infections by either bacterial virulence and/or antibiotic resistance traits. The characterization of 256 isolates and the assessment of five parameters, showed that 96 of 1...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2020.108750
更新日期：2020-10-16 00:00:00
abstract：:Dry-cured sausages are colonised by moulds during the ripening process. The temperature and the salt content (which affects water activity, aw) predispose the surface to colonisation by Penicillium species, including Penicillium nordicum and Penicillium verrucosum which can lead to contamination of the sausages with o...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.11.014
更新日期：2015-02-02 00:00:00
abstract：:Pectinase enzymes have shown a considerable influence in both, sensitive and technological properties of wines. They can help to improve clarification process, releasing more color and flavor compounds entrapped in grape skin, facilitating the liberation of phenolic compounds. This work aims to find yeasts that, becau...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2016.02.003
更新日期：2016-04-16 00:00:00
abstract：:Three microfiltered water dispensers (MWDs) for domestic use were bacteriologically monitored over a period of 1 year to evaluate their hygienic status and to compare the ability of two disinfectants (peracetic acid and hydrogen peroxide) to ensure adequate bacteriological quality of the dispensed water. To this end, ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.10.007
更新日期：2009-01-15 00:00:00
abstract：:Critical control points (CCPs) associated with Minas Frescal cheese (a Brazilian soft white cheese, eaten fresh) processing in two dairy factories were determined using flow diagrams and microbiological tests for detection of Listeria monocytogenes and other species of Listeria. A total of 218 samples were collected a...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(02)00223-4
更新日期：2003-03-25 00:00:00
abstract：:Pantoea agglomerans strain CPA-2 is an effective biocontrol agent (BCA) against the major postharvest pathogens present on pome and citrus fruits. Dehydration, such as freeze-drying, spray-drying and fluidized bed drying is one of the best ways to formulate BCAs. In this work, the survival of CPA-2 cells after formula...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2015.06.013
更新日期：2015-10-01 00:00:00
abstract：:Twelve lots of fresh unskinned fillets of rainbow trout (Oncorhynchus mykiss) and 10 lots of fresh sliced salmon (Salmo salar) prepacked in trays wrapped with an oxygen-permeable film were obtained immediately after packing from two supermarkets having in-plant facilities for packaging wet fish. During storage at 3 de...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(02)00011-9
更新日期：2002-06-05 00:00:00
abstract：:Controlling water quality is critical in preventing cross-contamination during fresh produce washing. Process wash water (PWW) quality can be controlled by implementing chemical disinfection strategies. The aim of this study was to evaluate the pilot-scale efficacy of chlorine dioxide (ClO2) during processing on the r...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2018.01.013
更新日期：2018-03-23 00:00:00
abstract：:Lactobacillus plantarum 18A, Lactobacillus helveticus 2B, Lactobacillus delbrueckii subsp. lactis 20F, Streptococcus thermophilus 22C, Enterococcus faecalis 32C and Enterococcus durans 16E were the most acidifying strains within 146 isolates for natural whey starters. The effect of media and temperature on 2 autochtho...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.03.043
更新日期：2008-07-15 00:00:00
abstract：:Of 45 Escherichia coli O157 isolates from cattle feces, which were collected between May 2000 and September 2003 in Korea, 32 were resistant to at least 1 antibiotic and 28 were resistant to 4 or more antibiotics, with 32, 30 and 30 of the isolates being resistant to streptomycin, tetracycline and sulfisoxazole, respe...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2005.05.013
更新日期：2006-01-15 00:00:00
abstract：:An innovative approach to Post-Harvest Processing (PHP) of oysters is introduced focusing on the effects of supercritical carbon dioxide (scCO(2)) on bacterial contaminants trapped in the digestive system of oysters. Oysters were exposed to scCO(2) under two conditions: (1) 100 bar and 37 degrees C for 30 min and (2) ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2009.11.012
更新日期：2010-03-31 00:00:00
abstract：:International trade in food products has expanded rapidly in recent years. This paper presents economic approaches for analyzing the effects on trade in food products of the food safety requirements of governments and private buyers. Important economic incentives for companies to provide improved food safety arise fro...
journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
doi：10.1016/s0168-1605(00)00346-9
更新日期：2000-12-20 00:00:00
abstract：:The incidence of Salmonella spp. in tropical seafood was studied using standard microbiological techniques and polymerase chain reaction (PCR). Six of 20 finfish (30%), 4 of 20 clams (20%) and 1 of 20 shrimp (5%) were positive by culture techniques and by PCR. In a comparative study of different selective enrichment b...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(03)00144-2
更新日期：2003-11-15 00:00:00
abstract：:Loop-mediated isothermal amplification (LAMP) has emerged as a promising alternative to PCR for pathogen detection in food testing and clinical diagnostics. This study aimed to validate a Salmonella LAMP method run on both turbidimetry (LAMP I) and fluorescence (LAMP II) platforms in representative animal food commodi...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2017.10.020
更新日期：2018-01-02 00:00:00
abstract：:Risk profiles of pork and poultry meat were carried out using an Excel-based software program, Risk Ranger. It is a semi-quantitative risk estimator answering various questions relating to the probability of exposure to a hazard, susceptibility of the population of interest, severity of the illness caused by the hazar...
journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
doi：10.1016/j.ijfoodmicro.2008.05.014
更新日期：2008-08-15 00:00:00
abstract：:The aims of this investigation were to enumerate coliforms in fresh mangoes, puree, cheeks, and cheeks-in-puree in order to determine the source of these organisms in the processed products, to determine methods for their control, and to identify coliforms isolated from cheeks-in-puree to determine whether they have a...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(94)00083-i
更新日期：1995-03-01 00:00:00
abstract：:Quantitative microbiological risk assessment (QMRA) is influenced by the choice of the probability distribution used to describe pathogen concentrations, as this may eventually have a large effect on the distribution of doses at exposure. When fitting a probability distribution to microbial enumeration data, several f...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.11.024
更新日期：2015-02-16 00:00:00
abstract：:Minas cheese is a popular dairy product in Brazil that is traditionally produced using raw or pasteurized cow milk. This study proposed an alternative production of Minas cheese using raw goat milk added of a nisin producer Lactococcus lactis subsp. lactis GLc05. An in situ investigation was carried on to evaluate the...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2015.08.006
更新日期：2015-12-02 00:00:00
abstract：:Techniques for the development of mathematical models in the area of predictive microbiology have greatly improved recently, allowing better and more accurate descriptions of microbial responses to particular environmental conditions, thus enabling predictions of those responses to be made with greater confidence. Rec...
journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
doi：10.1016/0168-1605(94)90156-2
更新日期：1994-11-01 00:00:00
abstract：:Diarrheagenic E. coli (DEC) isolates were recovered from local retail markets and the Osaka Municipal Central Wholesale Market in Japan. Retail food samples were collected for analysis in Osaka Japan from 2005 to 2008 and consisted of 32 beef, 28 pork, 20 poultry, 136 fish, 66 fruits and vegetables and 51 ready-to-eat...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2017.03.003
更新日期：2017-05-16 00:00:00
abstract：:The starter culture Penicillium roqueforti, undesired cultures Penicillium caseifulvum and Geotrichum candidum and the potential starter culture Debaryomyces hansenii were examined for their growth and interactions at environmental conditions similar to the Danish blue cheese Danablu. The combined effect of low oxygen...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(00)00263-4
更新日期：2000-06-15 00:00:00
abstract：:This study determined the effect of a previously characterized phage mixture, referred as BEC8 on enterohemorrhagic Escherichia coli (EHEC) O157:H7 strains applied on materials typically used in food processing surfaces. Sterile stainless steel chips (SSC), ceramic tile chips (CTC), and high density polyethylene chips...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2010.11.021
更新日期：2011-01-31 00:00:00
abstract：:Human noroviruses (HuNoVs) are a major cause of food borne gastroenteritis worldwide. They are often transmitted via infected and shedding food handlers manipulating foods such as deli sandwiches. The presented study aimed to simulate HuNoV transmission during the preparation of deli sandwiches in a sandwich bar. A qu...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.12.004
更新日期：2015-03-02 00:00:00
abstract：:Production of ochratoxin on media by eight isolates of Aspergillus ochraceus from coffee or its processing environment in India, Indonesia, Kenya, and Brazil, and seven Brazilian isolates from other commodities, has been compared with yields in shaken fermentation on shredded wheat and coffee (Coffea arabica). Shredde...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(00)00278-6
更新日期：2000-05-25 00:00:00
