The present paper deals with the secondary metabolite contents such as saponin, total tannin and anthraquinone during three different developmental stages vegetative, flowering fruiting in Alhagi maurorum from Rajasthan desert. study of this plant is needed due to its higher medicinal values. aim quantitative estimation selected metabolites. amounts were evaluated by HPLC, titrimetric GC/MS/MS ...

From the nutritional point of view, data on dietary fiber content, tannin and in vitro protein digestibility of processed millet is of importance, because millets are never eaten raw. Effects of commonly used traditional methods on dietary fiber, tannin content and %IVPD of two locally available pearl millet varieties (Kalukombu and Maharashtra Rabi Bajra) were investigated. The millet was subj...

Gelation of tannin-formaldehyde (TF) solutions was systematically investigated by changing pH and concentration of TF resin in water. In this way we constructed the TF phase diagram, from which chemical hydrogels could be described, and also synthesized thermoreversible tannin-based hydrogels. Conditions of non-gelation were also determined. Hydrogels were dried in supercritical CO2, leading to...

Tannase, so called Tannin Acyl Hydrolase (TAH) (E.C.3.1.1.20) is one of the versatile biocatalyst with several industrial applications. It is solely responsible for the degradation of hydrolysable tannin thus surpassing the untoward effects of high concentration of tannin consumption in the gut of small ruminants. In the locality of Palampur the migratory goats and sheep have the unique propert...

Tannin/furanic rigid foams were modi ed by either polymeric 4,4’ diphenylmethane diisocyanate (pMDI) or a one-component polyurethane still presenting reactive isocyanate groups (PUR). Several di erent sequences of mixing the isocyanate and polyurethane with the chemicals used to prepare tannin-based foams were tested. Scanning electron microscopy (SEM) showed that addition of either pMDI or PUR...

Acacia mangium is a fast-growing dicotyledonous tree species and has become the dominating plantation in Malaysia. It was grown particularly as a raw material for veneer, pulp, and paper industries. The chemical properties test in this study showed that the A. mangium tree bark contains higher extractive content as compared to the wood portion (sapwood). Tannin extracts from A. mangium tree bar...

The proanthocyanidins or condensed tannins, phenolic polymers which are synthesized by many plants, characteristically bind and precipitate proteins. The specificity of the interaction was investigated using a competitive binding assay to compare directly the affinities of various proteins and synthetic polymers for the tannin obtained from Sorghum bicolor (Lin.) Moench. At pH 4.9, the relative...

The condensed tannin (CT) content of eight shrub species (Cytisus purgans, Cytisus scoparius, Genista florida, Genista occidentalis, Calluna vulgaris, Erica arborea, Erica australis and Juniperus communis) from a grazing mountain area of northern Spain was analysed and related to various indicators of nutritive value. Chemical composition, in vitro gas production, OM degradation and true DM dig...

Tannins gel was investigated as an adsorbent for heavy metal ions, such as lead, cadmium, copper, and others. The gel used in the present work was made by Mitsubishi Nuclear Fuel Co. Ltd. (MNF). It was found that the gel showed high adsorption capacity of heavy metal ions and the adsorption isotherms were correlated well by the Langmuir equation. The maximum adsorption capacity was influenced b...