Author Topic: Penicillium roqueforti - Different Strains  (Read 1259 times)

Offline dttorun

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Penicillium roqueforti - Different Strains
« on: August 17, 2011, 01:12:29 PM »
Hi all,
Is there any document or info available regarding p.roq strains? The culture itself and blue cheese I made from previous sachet was darker in colour and I was quite happy with the marbling I was getting. As I ran out, I got a new sachet (strain PJ) but it is very weak. Before ordering a new one I`d like learn more.
Thanks,
Tan
« Last Edit: August 17, 2011, 03:13:18 PM by dttorun »


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Offline Sailor Con Queso

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Re: Penicillium roqueforti - Different Strains
« Reply #1 on: August 17, 2011, 04:27:45 PM »
Yes, there are at least 3 different strains available - PV, PJ and PA. Unless I'm going after a very mild blue, the PV is my first choice for most blues. PJ has a slower growth rate, a weaker color, and is a milder flavor. PV is more proteolytic and therefor produces a creamier cheese. Suppliers don't always carry all of these strains or they may not make them all available to hobbyists.

PV: Very fast growth rate; strong blue flavor; bluish-green color. Very creamy consistency, e.g. Edelpilz, Roquefort and strong Gorgonzola type.

PJ: Fast growth rate; typical blue flavor; middle-green color. Can be mixed with PV, no unbound moisture, long shelf life, e.g. Edelpilz or Roquefort.

PA: Very fast growth rate; mild blue flavor; dark-green color. Mild cheese, can be mixed with PV, long shelf life, e.g. danish blue and double-mould-type cheese.
« Last Edit: August 18, 2011, 10:03:36 AM by Sailor Con Queso »
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Offline dttorun

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Re: Penicillium roqueforti - Different Strains
« Reply #2 on: August 17, 2011, 10:24:04 PM »
Sailor,
Thanks for the info. I think I will go with PA this time.
Tan

Offline Milk Maid

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Re: Penicillium roqueforti - Different Strains
« Reply #3 on: December 10, 2012, 11:03:56 AM »
Hi Sailor Con Queso--

Do you know what the full names of 'PV', 'PJ' and 'PA' are?

Thanks!

Milk Maid

Offline Milk Maid

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Re: Penicillium roqueforti - Different Strains
« Reply #4 on: December 10, 2012, 11:16:55 AM »
I'm adding to my last question about the names of the different stains of blue:

Can someone explain the flavor and texture differences that result between P. roquefortii and P. glacaum?



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Offline Al Lewis

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Offline Beans

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Re: Penicillium roqueforti - Different Strains
« Reply #6 on: December 10, 2012, 12:34:06 PM »
This was helpful for me.