Hagerman

Results: 627



#Item
41Solutions / Gallotannins / Biofuels / Methanol / Solvent / Acetic acid / Ethanol / Tannic acid / Proton NMR / Chemistry / Alcohols / Household chemicals

PGG Preparation from Tannic Acid  Ann E. Hagerman © 2011  Contents  Introduction ..............................................................................................................................

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Language: English - Date: 2011-01-29 17:35:24
42Tannin / Acid anhydrides / Phenolic content in wine / Tannic acid / Pyridine / Proanthocyanidin / Solvent / Acetic acid / Acetyl / Chemistry / Nutrition / Oenology

Chemical Modification of Tannins  Ann E. Hagerman © 2002  Tannins can be modified to change their solubility properties or to eliminate the reactive phenolic  functional groups. The modified 

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Language: English - Date: 2011-01-12 14:28:04
43Laboratory equipment / Homogenization / Science / Cell biology / Laboratory techniques / Homogenizer

Extraction of Phenolics from Plants  Ann E. Hagerman © 2002  The method used to extract phenolics must be planned with care since all results of the analyses are  affected by the extractio

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Language: English - Date: 2011-01-12 14:30:20
44TE buffer / Staining / Buffer solution / Potassium / Chemistry / Buffers / Borax

NBT Staining  Ann E. Hagerman © 2011  Introduction  Modified from:  Paz, M.A., Fluckiger, R., Boak, A., Kagan, H.M., and Gallop, P.M. (1991). Specific  detection of quinoproteins by redox‐c

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Language: English - Date: 2011-01-29 17:36:47
45Food science / Thiolysis / Methanol / High-performance liquid chromatography / Catechin / Chemistry / Chromatography / Proanthocyanidins

Thiolysis procedure for proanthocyanidin  Ann E. Hagerman © 2011  Introduction  This method is taken from Meth Enz 2001  335: 57‐70  (Guyot et al.) and Scioneaux et al, J. Chem. Ecol. 

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Language: English - Date: 2011-01-31 11:49:36
46Organic chemistry / Glucogallin / Tannic acid / Gallic acid / PGG / Pentagalloyl glucose / Ester / Phenolic content in wine / Gallate / Gallotannins / Phenols / Chemistry

Purification of Gallotannins  Ann E. Hagerman  Gallotannins can be purified to serve as chromatographic standards or as standards in various assays.  Tannic acid, a commercially available gallot

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Language: English - Date: 2010-12-23 16:48:31
47

Biosynthesis  Some references  Ann E. Hagerman © 2002  Gallotannins   Hagenah, S.; Gross, G.G. Biosynthesis of 1,2,3,6‐Tetra‐O‐Galloyl‐beta‐D‐Glucose. Phytochemistry 1993, 

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- Date: 2011-01-12 14:27:41
    48Laboratory equipment / Laboratory glassware / Distillation / Unit operations / Separatory funnel / Filtration / Round-bottom flask / Ethanol / Reflux / Chemistry / Science / Laboratory techniques

    Apple Dimer Purification  Ann E. Hagerman © 2011  Introduction  This is taken from taken from Li, C.; Trombley, J.D.; Schmidt, M.A.; Hagerman, A.E. Preparation of an acid  butanol standard f

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    Language: English - Date: 2011-01-31 11:33:30
    49High-performance liquid chromatography / Elution / Trifluoroacetic acid / Chemistry / Chromatography / Scientific method

    Reversed Phase HPLC of Gallotannins  Ann E. Hagerman  Excellent resolution of gallotannins can be achieved by gradient elution on reversed phase systems as  described in Kawamoto, H.; Nakayama,

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    Language: English - Date: 2010-12-23 16:48:39
    50

    Tannin Purification  Ann E. Hagerman  Methods for purification of either hydrolyzable or condensed tannins are now widely available, so that  an increasing amount of work has been done with p

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    - Date: 2010-12-23 16:48:54
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