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  • activity
  • Class IIa bacteriocins from lactic acid bacteria are small, cationic proteins with antilisterial activity. (biomedcentral.com)
  • They exhibit important technological properties, e.g. thermostability and retaining of activity at a wide pH range, which along with the bactericidal action against Gram-positive food spoilage and pathogenic bacteria, make them an important class of biopreservatives. (biomedcentral.com)
  • group
  • The bacteriocins produced by lactic acid bacteria (LAB) are divided into three main groups: the lantibiotics, which are modified bacteriocins (class I), the nonlantibiotics, which are heat-stable and unmodified (class II), and a group of large heat-labile bacteriocins (class III). (biomedcentral.com)
  • pathway
  • This pathway, called the bifid shunt, uses the key enzyme frutose-6-phosphate phosphoketolase (F6PPK) and is the generally used as a diagnostic test for this Bifidobacteria because it's not found in other gram-positive intestinal bacteria. (kenyon.edu)
  • The Leloir pathway in lactic acid bacteria. (buffalobrewingstl.com)
  • Down-regulation of the caffeic acid 3- O -methyltransferase (COMT) gene in the lignin pathway yielded switchgrass ( Panicum virgatum ) that was more susceptible to bioconversion after dilute acid pretreatment. (biomedcentral.com)
  • Similarly, the evaluation of transgenic lines of alfalfa down-regulated in the lignin pathway has shown increased sugar release from hydrolysis in comparison to the wild-type, and this phenomenon is directly related to the reduction of lignin content[ 10 ]. (biomedcentral.com)
  • Oenococcus
  • The LAB also differ in the number of rRNA operons, from two in Oenococcus oeni to nine in Lb. delbrueckii , which correlates with the number of tRNA genes (Table 1) and may reflect differences in the ecological competitiveness (e.g., capacity for rapid growth and production of lactic acid) between these bacteria ( 12 , 13 ). (pnas.org)
  • Saccharomyces
  • In the popular Saccharomyces cerevisiae strain EBY.VW4000, deletion of 21 transporters completely abolished hexose transport. (tudelft.nl)
  • Bifidobacteria
  • Bifidobacteria , called probiotics, are a natural part of the bacterial flora in the human body and have a symbiotic bacteria-host relationship with humans. (kenyon.edu)
  • When breast-fed infants' diets are changed to cows milk and solid food, Bifidobacteria are joined by rising numbers of other bacteria found in the human body such as Bacteroides and Streptococci lactobacilli . (kenyon.edu)
  • in addition, because Bifidobacteria produces lactic acid instead of gas (like E. coli) , infants and people in general with more Bifidobacteria than other bacteria will have less gas and digestive problems. (kenyon.edu)
  • Bifidobacteria exert a range of beneficial health effects, including the regulation of intestinal microbial homeostasis, the inhibition of pathogens and harmful bacteria that colonize and/or infect the gut mucosa, the modulation of local and systemic immune responses, the repression of procarcinogenic enzymatic activities within the microbiota, the production of vitamins, and the bioconversion of a number of dietary compounds into bioactive molecules. (kenyon.edu)
  • Bifidobacteria are also able to produce small amounts of succinic acid, although this has never been studied in detail ( 35 ). (asm.org)
  • The aim of this study was to obtain detailed information about the production of succinic acid by bifidobacteria. (asm.org)
  • Detection of bifidobacteria by using propionic acid as a selective agent. (springer.com)
  • fermentations
  • The carbon chain may be various lengths, but sugars common in bread fermentations are of the 5- and 6- carbon types, referred to generically as pent oses and hex oses, respectively. (thefreshloaf.com)
  • The best H 2 yields were obtained for starch fermentations, and the highest yield of 2.91 mol H 2 / mol hexose was reported for C. butyricum . (biomedcentral.com)
  • enzymes
  • NZ_AABM00000000) revealed that several genes that encode enzymes that may be involved in the production of succinic acid from carbohydrates, such as PEP carboxylase and fumarate reductase, are present. (asm.org)
  • A novel bifunctional enzyme, L-rhamnulose-phosphate aldolase (RhaE) fused to L-lactaldehyde dehydrogenase (RhaW), which is not homologous to previously characterized L-Rha catabolic enzymes, was identified in diverse bacteria including Chloroflexi, Bacilli, and Alphaproteobacteria. (frontiersin.org)
  • intestines
  • Without good bacteria, a pet's body would be unable to fight off disease, absorb food properly, and their intestines become overrun with toxins and waste, which set the breeding ground for disease. (nwcpet.com)
  • Healthy intestines should be filled with "good guy" bacteria. (total-zymes.com)
  • But without the good guys to take care of the intestines and keep them clean and safe, the bad bacteria can flourish and cause a number of health problems. (total-zymes.com)
  • Candida
  • Candida can be a serious problem in pets due to the same environmental factors that are largely responsible for the epidemic in humans: frequent use of antibiotics, high stress level and high sugar intake. (nwcpet.com)
  • oeni
  • However, in commercial winemaking, malolactic conversion typically is initiated by an inoculation of desirable bacteria, usually O. oeni . (wikipedia.org)
  • among bacteria
  • Large-scale regulon inference using bioinformatics revealed remarkable variations in transcriptional regulators for L-Rha utilization genes among bacteria. (frontiersin.org)
  • species
  • The isomerase has now been observed in nearly a hundred species of bacteria. (wikipedia.org)
  • Some species of L. reuteri produce the enzyme invertase, which is used in converting sugar from sucrose (17, 26). (scielo.br)
  • genes
  • This process, whereby transcription of catabolic genes, including other PTS genes, is blocked in the presence of a preferred sugar, is called catabolite repression. (buffalobrewingstl.com)
  • fructose
  • Moreover not-absorbed sugars could also produce a microbiota deterioration activating a positive feedback loop: the increasing microbiota deterioration reduces the functionality of absorption both of fructose and tryptophan in the gut, entering a vicious circle. (frontiersin.org)
  • cellulolytic
  • The Fibrobacteres phylum belongs to cellulolytic bacteria was isolated, and their relative abundance in CB group showed no difference between CON and FCB treatments. (frontiersin.org)
  • In conclusion, dietary FCB decreased the abundance of bacterial communities, particularly the population of bacteria related to cellulolytic degradation. (frontiersin.org)
  • microbiota
  • 2017. Gender differences in bile acids and microbiota in relationship with gender dissimilarity in steatosis induced by diet and FXR inactivation. (ucdavis.edu)
  • production
  • Lactic acid-producing bacteria are associated with various plant and animal niches and play a key role in the production of fermented foods and beverages. (pnas.org)
  • Controlling acid balance and degree of sourness is something that artisan bakers strive to do, so it may be useful to understand where the acids come from and how their production can be influenced by things that are within the baker's control. (thefreshloaf.com)
  • Succinic acid production was found to be associated with growth and stopped when the energy source was depleted. (asm.org)
  • This limits the production of lactic acid, which results in an increase in the theoretical ratio of acetic acid to lactic acid. (asm.org)
  • In Brazil, however, the production of ethyl alcohol from sugar-cane, manioc, and other tropical plants has become a major project of the government to reduce petroleum imports (Figure 1). (nzdl.org)
  • A wine undergoing malolactic conversion will be cloudy because of the presence of bacteria, and may have the smell of buttered popcorn , the result of the production of diacetyl. (wikipedia.org)
  • The limitations of growth and acid production by the end-product are well known. (scielo.br)
  • xylose
  • Most pentoses and some hexoses are all substrates for D-xylose isomerase. (wikipedia.org)
  • Hence D-xylose isomerase is used to produce these rare sugars which have very important applications in biology despite their low abundance. (wikipedia.org)
  • This bacterium was mistakenly classified as a L. plantarum, which normally grows on the sugar L-arabinose, and rarely grown on D-xylose. (wikipedia.org)
  • In the isomerization of xylose, crystal data has shown that xylose sugar binds to the enzyme in an open chain conformation. (wikipedia.org)
  • coli
  • These "good guys" can be likened to superheroes: They fight crime (like gas, bloating, and diarrhea, constipation), and they keep the bad guys (harmful bacteria like E.Coli and salmonella) under control! (total-zymes.com)
  • antibiotics
  • Even the pet foods we feed our pets to keep them healthy, like meat and poultry can contain antibiotics, further reducing the levels of good bacteria. (nwcpet.com)
  • genome
  • We report nine genome sequences representing the phylogenetic and functional diversity of these bacteria. (pnas.org)
  • molecule
  • As carbo - hydrates , sugars are made up of carbon ( C ) and water, which is composed of hydrogen ( H ) and oxygen ( O ). The hydrogen and oxygen atoms are arranged in various configurations around a chain of carbon atoms which form the structural backbone of the molecule. (thefreshloaf.com)
  • Grapes
  • Grapes produced in cool regions tend to be high in acidity, much of which comes from the contribution of malic acid. (wikipedia.org)