Search results for " rennet paste"

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Animal rennets as sources of dairy lactic acid bacteria

2014

ABSTRACT The microbial composition of artisan and industrial animal rennet pastes was studied by using both culture-dependent and -independent approaches. Pyrosequencing targeting the 16S rRNA gene allowed to identify 361 operational taxonomic units (OTUs) to the genus/species level. Among lactic acid bacteria (LAB), Streptococcus thermophilus and some lactobacilli, mainly Lactobacillus crispatus and Lactobacillus reuteri , were the most abundant species, with differences among the samples. Twelve groups of microorganisms were targeted by viable plate counts revealing a dominance of mesophilic cocci. All rennets were able to acidify ultrahigh-temperature-processed (UHT) milk as shown by pH …

Streptococcus thermophilusColony CountColony Count MicrobialApplied Microbiology and BiotechnologyAcidification; Animal rennet pastes; Autolysis; Lactic acid bacteria; Microbial ecology; PyrosequencingMicrobial ecologyMicrobialCheeseRNA Ribosomal 16SLactobacillusEnterococcus casseliflavusLactic acid bacteriaCluster AnalysisPhylogenyEcologybiologyLactobacillus crispatusBacterialAnimal rennet pastefood and beveragesPyrosequencingHydrogen-Ion ConcentrationAutolysiBiotaAnimals; Cluster Analysis; Colony Count Microbial; DNA Bacterial; DNA Ribosomal; Enterococcus; Hydrogen-Ion Concentration; Lactobacillus; Microbial Viability; Milk; Molecular Sequence Data; Phylogeny; RNA Ribosomal 16S; Sequence Analysis DNA; Biota; ChymosinMilkSequence AnalysisChymosinBiotechnologyDNA Bacterial16SMolecular Sequence DataDNA RibosomalEnterococcus faecalisMicrobiologyAcidificationAnimalsRibosomalMicrobial ViabilitySequence Analysis DNADNAbiology.organism_classificationLactobacillus reuteriLactobacillusEnterococcusFood MicrobiologyRNAMetagenomicsEnterococcusFood ScienceEnterococcus faeciumSettore AGR/16 - Microbiologia Agraria
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UTILIZZO DEL LATTODINAMOGRAFO PER LA VALUTAZIONE DELL’ATTIVITA’ COAGULANTE DI CAGLI IN PASTA ARTIGIANALI.

2013

The aim of this study was to evaluate the use of Formagraph to determine the milk clotting activity of animal Sicilian rennet pastes. Clotting time (r), curd firming time (k20) and curd firmness (a30) were measured during coagulation tests carried out with pasteurized cows’ milk. The rennet paste samples were collected in 11 dairy factories located throughout western Sicily. The factories produce two different pasta-filata cheese typologies, Caciocavallo Palermitano and PDO Vastedda della valle del Belìce, made with cows raw milk and ewe raw milk, respectively. Commercial liquid calf rennet Naturen and two industrial rennet pastes prepared from kid and lamb abomasums were used for compariso…

traditional cheeseSettore AGR/18 - Nutrizione E Alimentazione Animaleclotting activity rennet paste
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