Studies on Molds Found in Mold Starter for Blue Cheese

Crystal structure determination of aristolochene synthase from the blue cheese mold, Penicillium roqueforti.

The 2.5-A resolution crystal structure of recombinant aristolochene synthase from the blue cheese mold, Penicillium roqueforti, is the first of a fungal terpenoid cyclase. The structure of the enzyme reveals active site features that participate in the cyclization of the universal sesquiterpene cyclase substrate, farnesyl diphosphate, to form the bicyclic hydrocarbon aristolochene. Metal-trigge...

Fluorescent method for monitoring cheese starter permeabilization and lysis.

A fluorescence method to monitor lysis of cheese starter bacteria using dual staining with the LIVE/DEAD BacLight bacterial viability kit is described. This kit combines membrane-permeant green fluorescent nucleic acid dye SYTO 9 and membrane-impermeant red fluorescent nucleic acid dye propidium iodide (PI), staining damaged membrane cells fluorescent red and intact cells fluorescent green. For...

Complete Genome Sequence for Lactobacillus helveticus CNRZ 32, an Industrial Cheese Starter and Cheese Flavor Adjunct

Lactobacillus helveticus is a lactic acid bacterium widely used in the manufacture of cheese and for production of bioactive peptides from milk proteins. We present the complete genome sequence for L. helveticus CNRZ 32, a strain particularly recognized for its ability to reduce bitterness and accelerate flavor development in cheese.

Effect of starter bacteria on phisico-chemical and sensory properties of iranian white cheese

Susceptibility of cheese and yoghurt starter bacteria to antibiotics.

Eight single-strain lactic streptococci, three commercial cheese starters, and six lactic acid bacteria isolated from yoghurt were examined for their susceptibility to penicillin, cloxacillin, tetracycline-hydrochloride and streptomycin. The ranges of the antibiotics causing 50% inhibition of the bacteria were (mug/ml): penicillin, 0.009 to 0.20; cloxacillin, 0.24 to 2.50; tetracycline, 0.09 to...