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OfflineYSr
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Dextrose vs glucose?
    #2985409 - 08/10/04 12:05 PM (12 years, 8 months ago)

What is the diffrence between a liquid culture with dextrose or
glucose?

Is it almost the same thing, og is one of them better than the other?
If so, why?

YSr


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InvisiblePinback
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Re: Dextrose vs glucose? [Re: YSr]
    #2985467 - 08/10/04 12:19 PM (12 years, 8 months ago)

Dextrose and glucose is exactly the same thing, just different names. The word glucose is more commonly used, at least in Swedish.


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OfflineYSr
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Re: Dextrose vs glucose? [Re: Pinback]
    #2985584 - 08/10/04 12:53 PM (12 years, 8 months ago)

Are you absolutely sure that it is the same?

YSr


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OfflinePsilygirl
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Re: Dextrose vs glucose? [Re: Pinback]
    #2985606 - 08/10/04 01:04 PM (12 years, 8 months ago)

no, since it is a chiral molecule (with the same molecular formula) they have different rotations which give them different properties.

dextrose is L and glucose is D.


--------------------
"Love says 'I am everything.' Wisdom says 'I am nothing.' Between the two, my life flows."


Puget Sound Mycological Society


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OfflineAnnoA
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Re: Dextrose vs glucose? [Re: Psilygirl]
    #2985718 - 08/10/04 01:43 PM (12 years, 8 months ago)

>they have different rotations which give them different properties.

Different optical properties, yes. But different chemical(nourishment) properties? No.


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InvisiblePinback
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Re: Dextrose vs glucose? [Re: Psilygirl]
    #2985762 - 08/10/04 01:55 PM (12 years, 8 months ago)

That is not correct.

Dextrose is the D form, and while glucose could technically be any one of the enantiomers, it is always the dextrorotary form if the optical rotation is not given. The dextrorotary form is the only one found in living things, and if one would refer to the levorotary form, one would have to state that explicitly. Also, the unnatural form is very expensive and not something you could buy anywhere. Aldrich lists L-glucose at ?308.80 per 5 grams! Not something you would use as nutrition. Please, check this in any biochem book or even dictionary if you don't believe me.


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OfflineYSr
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Re: Dextrose vs glucose? [Re: Pinback]
    #2985850 - 08/10/04 02:26 PM (12 years, 8 months ago)

""Dextrose: also known as corn sugar. Dextrose is a simple sugarvery
similar to glucose. It is commonly sold under the name dextrose, but
is actually dextrose monohydrate. The monohydrate simply means that
each glucose molecule contains one water molecule bound to it.
Therefore, more dextrose is required for priming than pure glucose
or sucrose on a weight for weight basis.""


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OfflineYSr
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Re: Dextrose vs glucose? [Re: YSr]
    #2986023 - 08/10/04 03:13 PM (12 years, 8 months ago)

What is the best medium for liquid cultures?
Potato water, dextrose, sucrose, malt extract, other?

YSr


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Invisiblemycopsycho
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Re: Dextrose vs glucose? [Re: YSr]
    #2987012 - 08/10/04 06:19 PM (12 years, 8 months ago)

malt is the best. bar none. (BTW potato water is dextrose, for the most part anyways)


--------------------
I Am The Sickness.

Diploid: I think adults have a right to make stupid decisions and it's nobody else's fucking business.


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OfflinePsilygirl
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Re: Dextrose vs glucose? [Re: Anno]
    #2987081 - 08/10/04 06:32 PM (12 years, 8 months ago)

thanks for the correction anno.


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OfflineAnnoA
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Re: Dextrose vs glucose? [Re: mycopsycho]
    #2987341 - 08/10/04 07:10 PM (12 years, 8 months ago)

>BTW potato water is dextrose, for the most part anyways

Potato water is much more than xextrose, in fact I don't think there is much dextrose in potato water at all.

Potato water contains various sugars, proteins, potassium, iron, phospohorous, zinc, magnesium, calcium, vitamins:
Thiamin , Riboflavin ,Niacin ,B6, Folate, C


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InvisiblePsyllyMe
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Re: Dextrose vs glucose? [Re: Anno]
    #2989263 - 08/11/04 02:59 AM (12 years, 8 months ago)

I like potato water.........

it can cure my outbreaks of insanity.......

I think it's the potassium.........

cuz bananas work too.......

but in the jars........I vote malt......i tried the myco word.........and I was a true Karo man........

don't ever forget the JetDry........

peace


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Invisiblefastfred
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Re: Dextrose vs glucose? [Re: PsyllyMe]
    #2990284 - 08/11/04 10:27 AM (12 years, 8 months ago)

What's in JetDry?

I've found that PD usually works better than malt(ME)... Malt does work well though. Both are much better than sugarwater/honeywater/karo.

25-30 g potatoe starch, soluble
15-20 g dextrose/glucose
15 g agar, pure (omit for liquid media)
1000 mL (d)H2O


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OfflineYSr
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Re: Dextrose vs glucose? [Re: fastfred]
    #2990290 - 08/11/04 10:30 AM (12 years, 8 months ago)

Where do you buy potatoe starch, soluble?

YSr


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Invisiblemycopsycho
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Re: Dextrose vs glucose? [Re: YSr]
    #2990324 - 08/11/04 10:42 AM (12 years, 8 months ago)

make your own. jet dry is awesome.


--------------------
I Am The Sickness.

Diploid: I think adults have a right to make stupid decisions and it's nobody else's fucking business.


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OfflineYSr
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Re: Dextrose vs glucose? [Re: mycopsycho]
    #2990348 - 08/11/04 10:51 AM (12 years, 8 months ago)

What is "Jet dry" ?

YSr


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OfflineAnnoA
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Re: Dextrose vs glucose? [Re: YSr]
    #2990388 - 08/11/04 11:07 AM (12 years, 8 months ago)



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Offlinescatmanrav
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Re: Dextrose vs glucose? [Re: Anno]
    #2992547 - 08/11/04 08:27 PM (12 years, 8 months ago)

It stops clumping or something like that I think...


--------------------
"life is like a drop of rain getting closer and closer to falling into a lake, and then when you hit the lake there is no more rain drop, only the lake."

Growing with bags, start to finish (including my new grain and substrate prep)
Anyone looking to start bulk tubs/mono tubs/shotgun hybrids? Good tubs to use..
How I do grain (old still good tips)
Turn your closet into a fruiting chamber
Casing layer colonization and overlay


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Invisiblemycopsycho
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Re: Dextrose vs glucose? [Re: scatmanrav]
    #2992559 - 08/11/04 08:28 PM (12 years, 8 months ago)

yeah, spreads the spores out a little more evenly.


--------------------
I Am The Sickness.

Diploid: I think adults have a right to make stupid decisions and it's nobody else's fucking business.


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OfflineKillBill
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Re: Dextrose vs glucose? [Re: mycopsycho]
    #2993881 - 08/12/04 01:24 AM (12 years, 8 months ago)

At the Organic Food store where i get my popcorn they only have "malt barley" or something to that affect, no Malt Extract, no malt anything. they have powdered Agar, but i don't want to do cultures like that i don't have a sterile enough environment. Should i go with the malt? So far i'm having very little luck with some honey jars i did.


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Amazon Shop for: ½ Pint Jars, Agar, Malt Extract

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