Despite the fact, world leather industries are built on chromium tannage system, there is a growing interest of metal free tannages (chrome). This primarily owing to rising demand for tanning in industry. The goal this research paper was evaluate influences vegetable tannins materials retannage leather, by using Acacia nilotica ssp Adansonia pods (hydrolysable tannins) and Azadirachta indica ba...

Plants produce many bioactive compounds that are called secondary metabolites, and have a wide variation in chemical diversity, distribution and function [1]. Phytochemistry of plants has revealed the pharmacological effect and their uses in industries [2-4]. Secondary metabolites have long been known as a source of effective medical therapies such as anti-bacterial and anti-cancer as reported ...

Plants produce many bioactive compounds that are called secondary metabolites, and have a wide variation in chemical diversity, distribution and function [1]. Phytochemistry of plants has revealed the pharmacological effect and their uses in industries [2-4]. Secondary metabolites have long been known as a source of effective medical therapies such as anti-bacterial and anti-cancer as reported ...

Twenty oenotannins from different botanical origins were studied in model wine solution (1 g/L, 12% ethanol, pH 3.5). An original device was created for measuring Oxidation–Reduction potential (ORp) of the solutions at 20 °C strict anoxic condition by electrochemical method platinum electrode zero-current potential. Reactivity against proteins and antioxidant properties related to chemical stru...

We investigated the effects of CO2 enrichment on fine root chemical composition of two tree species common to northern hardwood forests. Two-year-old Betula papyrifera and 3-year-old Acer saccharum saplings were grown under ambient (400 μmol·mol–1) and elevated (700 μmol·mol–1) CO2 in a glasshouse experiment. In both species, root/shoot ratios and fine root percentages (of total biomass) were u...

Free-ranging browsers such as the black rhinoceros (Diceros bicornis) consume a diet that contains tannins, whereas the diets offered to them in captivity consist mostly of items known to contain hardly any such secondary plant compounds. Tannins could have potentially beneficial effects, including the chelation of dietary iron (iron storage disease is a common problem in black rhinos). Here, w...

The objective of this study was to evaluate the effects daily supplementation with a low dosage blend condensed and hydrolysable tannins on in vitro situ digestibility protein fibrous feedstuffs. In ruminal incubation assays were conducted seven five roughage feedstuffs without tannin (1 g/kg DM intake). From these same cattle, rumen fluid collected for incubations we evaluated gas production (...