| From: | Alex S McHardy/SB/UK/AZELIS |
| To: | newfore...@msn.com |
| Cc: | Richard Bacon/SB/UK/AZELIS@AZELIS |
| Date: | 03/12/2008 11:49 |
| Subject: | Enzymes for French Conditioned Cider |
Yes, it is true that a coach party of 33 West Berkshire CAMRA members
will be descending on Burley on Saturday 17th. This party will also
include Nick Edwards and Tim Wale.
Earlier we will be visiting the Red Shoot Inn and Brewery at Linwood,
and subsequently drinking at The Royal Oak, Fritham; The Cuckoo Inn,
Hamptworth; and The Black Boy, Winchester.
Should be a good day.
Roy.
--
Roy Bailey - Proprietor
The Lambourn Valley Cider Company
(Real cider from the Royal County)
<www.lambournvalleycider.co.uk>
You might try looking at vinquiry.com, they have a variety of enzymes. I have not checked out the prices, just looked at the catalogue. One for clarification of must from for Uvazym is from the Aspergillus niger mentioned by Gary.
Unfortunately Uvazym will not work since it is a pectic enzyme
'cocktail' with multiple activities (pectin methyl esterase,
polygalacturonase etc) which is used for clarification. Such cocktails
are easy to buy and often repackaged into small quantities for the
winemaking market. They are not suitable for 'keeving'.
For keeving we have to have a pure pectin methyl esterase (see
discussion on my website) in order to form the gel with calcium. If
other pectic activities are present, the gel will not form. This
particular enzyme is very new to the market (ca 20 years), and its major
commercial application is in 'firming' fruit during processing.
Currently it seems only to be sold in bulk. The Aspergillus niger is a
bit of a red herring since a vast number of enzymes and different
activities (not just pectinases) are produced by / from this organism.
Gary, welcome back to the group even though you have little time to
contribute. Your thoughts about totally natural keeving are interesting.
Only last night Roy and I were chatting on the telephone about this. For
the benefit of the group as a whole, I'll say that if you have no added
enzyme, even the addition of the calcium on its own can be valuable,
since there is natural PME in the fruit at variable levels. Roy can
describe his own success at this. The value of the enzyme of course is
that it makes the process totally (?) predictable which it isn't otherwise.
Andrew
Yes. Novoshape (amongst others) has already been mentioned in previous
posts. The problem is not the availability of the enzyme(s), it is
obtaining it in small enough quantities i.e. not 20L drums.
The link you give is for school and educational use only.
I'll give you a clue Ray, which they may be able to use. As apples
ripen, esterase enzyme activity reaches a peak. You can assay this AFAIR
by using a substrate of napthyl acetate and measuring the naphthol
produced in a fluorimeter. Don't have any step-by-step details to hand
just now but any competent biochemist should be able to crack it! Here's
a reference to get them started
http://www3.interscience.wiley.com/journal/120760308/abstract
Though frankly the iodine test for starch is simpler and easier and can
be done in anyone's kitchen with tincture of iodine from the chemist!
Just wonder if its worth trying later on in the season when (and if) the
overnight temperatures drop.
Maybe I should re-consult Roys experiment on his website...
Jez
The chances are good if you use bittersweet fruit from low-nutrient
orchards and if you add calcium. That's the way the French were always
doing it up to about 15 years ago .... and it worked for them!
A.
> Though frankly the iodine test for starch is simpler and easier and can
> be done in anyone's kitchen with tincture of iodine from the chemist!
Thanks, Andrew! I'll stick with using my Iodine Starch test kit that arrived
the other day... But I will drop your pointers and link into the guys and
gals at work for them to play with... :-)
Good morning all,
I have been reading you for a while now, and find the conversations very interesting and informative. I am new at this, my wife and I bought a farm property last year and were lucky (at least somewhat...) to find about 500 old apples trees (some I would consider as crab given the size and bitter taste) on the property. Unfortunately, they were not taken care of and the apples are scarce and not very appealing... Nevertheless, we were able to pick enough apples last fall to make two 10L carboys of cider.
I didn't quite know how to proceed, so after milling and pressing, I put the carboys in my basement (stone foundations, not heated)(btw sp was around 1.060). I monitored the temperature and it varied from 11 to 13 C during fermentation. One carboy was 'au naturel' and the other one was treated with SO2 and yeast (EC-1118). Fermentation was slow to start, but after 4-5 days, brown foam was produced and dead yeasts started to fall to the bottom. I racked the first time after a month (sp at 1.032 approx.), then I racked again 3 months later (sp at 1.022). I proceeded to bottle both carboys at this point. Interestingly, there were no major differences between 'au naturel' and with yeasts.
Now the interesting twist: I attended a course given by Peter Mitchell in Vermont last August, and as part of the course you could bring your own cider for taste evaluation by Peter. Much to my surprise, his first comment was: ‘This is typical French Cider’ !!!. The other point of interest was that although the cider was dry, it kept its fruity sweet aroma. So I guess to answer Jez question, it seems possible to do intentional natural keeve. The only question mark I have is will I be able to reproduce it. Well I’ll be trying soon.
Denis Rousseau
Hinchinbrooke, Quebec
-----Original Message-----
From: cider-w...@googlegroups.com [mailto:cider-w...@googlegroups.com] On
Behalf Of Jez Howat
Sent: 25 septembre 2009 12:28
To: cider-w...@googlegroups.com
Subject: [Cider Workshop] Re: Enzymes for French Conditioned Cider
This might sound like a bit of a dumb question, but what are the chances of
Well just to test this out I sent in an order to NCBE last week saying I
wanted the PME for private educational use. They phoned me this morning
to say they could not supply it except to accredited schools and
colleges. I explained I wasn't commercial, and only wanted to use it for
'self-education' at home to explore the process of keeving, but the
argument didn't wash. Their hands are tied commercially as I suspected.
So that's not an available route.
--
--
Visit our website: http://www.ciderworkshop.com
You received this message because you are subscribed to the "Cider Workshop" Google Group.
By joining the Cider Workshop, you agree to abide by our principles. Please see http://www.ciderworkshop.com/resources_principles.html
---
You received this message because you are subscribed to a topic in the Google Groups "Cider Workshop" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/cider-workshop/Ff0zoTUGZfQ/unsubscribe.
To unsubscribe from this group and all its topics, send an email to cider-worksho...@googlegroups.com.
To view this discussion on the web, visit https://groups.google.com/d/msgid/cider-workshop/5bd2e1b8-6af8-42c3-86e6-b3c505cd19df%40googlegroups.com.
On May 1, 2020, at 9:59 AM, Claude Jolicoeur <cjol...@gmail.com> wrote:
On 1 May 2020, at 15:40, steve selin <steve...@gmail.com> wrote:
Do you have a link for Vigo? I cannot find them on Google.
You received this message because you are subscribed to the Google Groups "Cider Workshop" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cider-worksho...@googlegroups.com.
To view this discussion on the web, visit https://groups.google.com/d/msgid/cider-workshop/2C0C249C-D45E-4F43-914A-23E796F79691%40gmail.com.
On 1 May 2020, at 15:07, steve selin <steve...@gmail.com> wrote:
Thank you. Polygalacturonase is would not do it, correct?
You received this message because you are subscribed to the Google Groups "Cider Workshop" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cider-worksho...@googlegroups.com.
To view this discussion on the web, visit https://groups.google.com/d/msgid/cider-workshop/3BEAFB81-2BD5-45B4-BB2F-A6950A78100C%40gmail.com.