Characterization of a Lactobacillus strain producing white crystals on cheddar cheese
نویسندگان
چکیده
منابع مشابه
Optimal growth of Lactobacillus casei in a Cheddar cheese ripening model system requires exogenous fatty acids.
Flavor development in ripening Cheddar cheese depends on complex microbial and biochemical processes that are difficult to study in natural cheese. Thus, our group has developed Cheddar cheese extract (CCE) as a model system to study these processes. In previous work, we found that CCE supported growth of Lactobacillus casei, one of the most prominent nonstarter lactic acid bacteria (NSLAB) spe...
متن کاملCheddar and Cheshire Cheese Rheology
Textural difEerences between Cheddar and Cheshire cheeses were examined rheologically to provide a means of distinguishing these two English cheeses. Body breakdown of a 6@wk Cheshire sample occurred at a lower strain than did a 20-wk sample, whereas a 60-wk Cheddar sample did not break down under the same conditions. All cheeses followed the Arrhenius equation, and the energy of activation obt...
متن کاملStarter strain related effects on the biochemical and sensory properties of Cheddar cheese.
A detailed investigation was undertaken to determine the effects of four single starter strains, Lactococcus lactis subsp. lactis 303, Lc. lactis subsp. cremoris HP, Lc. lactis subsp. cremoris AM2, and Lactobacillus helveticus DPC4571 on the proteolytic, lipolytic and sensory characteristics of Cheddar cheese. Cheeses produced using the highly autolytic starters 4571 and AM2 positively impacted...
متن کاملOverexpression of Lactobacillus casei D-hydroxyisocaproic acid dehydrogenase in cheddar cheese.
Metabolism of aromatic amino acids by lactic acid bacteria is an important source of off-flavor compounds in Cheddar cheese. Previous work has shown that alpha-keto acids produced from Trp, Tyr, and Phe by aminotransferase enzymes are chemically labile and may degrade spontaneously into a variety of off-flavor compounds. However, dairy lactobacilli can convert unstable alpha-keto acids to more-...
متن کاملMicrobiology of Cheddar cheese made with different fat contents using a Lactococcus lactis single-strain starter.
Flavor development in low-fat Cheddar cheese is typified by delayed or muted evolution of desirable flavor and aroma, and a propensity to acquire undesirable meaty-brothy or burnt-brothy off-flavor notes early in ripening. The biochemical basis for these flavor deficiencies is unclear, but flavor production in bacterial-ripened cheese is known to rely on microorganisms and enzymes present in th...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1989
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.55.10.2579-2582.1989