The effect of processing on the biochemical contents of Acanthus montanus leaves was investigated. The moisture, crude protein, lipid, fiber, ash, and total carbohydrate contents of the raw vegetable were 59.15, 1.85, 2.32, 3.76, 2.04, and 34.65 g/100 g, respectively. The saponin, alkaloid, tannin, flavonoid, phenol, and anthocyanin contents of the raw vegetable were 5.35, 4.04, 1.10, 3.53, 2.8...

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...

Traditional tanning practices often result in harmful waste products that pose significant environmental risks, including water pollution, non-biodegradable solids, hazardous emissions, and unpleasant odors. However, this study introduces a simple effective alternative method for industrial-scale vegetable tanning, with the goal of minimizing pollution. This innovative eliminates use common sal...

Abstract The use of vegetable tanning materials in leather processing has drawn attention as an alternative to basic chromium sulphate for its natural abundance and environmental aspects. In this work, attempt been made extract tannins from Xylocarpus granatum bark using different solvents (e.g., water, methanol, ethanol, chloroform) compare with conventional agents such mimosa quebracho. highe...

The use of vegetable tannins is a bio-based alternative to chrome tanning. most used extracts are Mimosa and Quebracho. To improve the sustainability tanning process, chemically unmodified pine bark could be as natural source tannins. present study was aimed evaluate environmental impact powder obtain leather through life cycle assessment. Specifically, evaluation performed for both: i) tannin ...

Current forestry practice in North America is to transport pulpwood and logs from the harvest site to the mill with the bark on the wood. Approximately 18 percent of the weight of logs from conifers such as southern pine is bark. The majority of this bark is burned as hog fuel but its fuel value is low.1 When compared with natural gas at an average of $2SO/MBTU or electricity at 3.5 cents/KWH, ...

This publication provides a comparative description of the chemical composition silver speedwell (Veronica incana L.). We chose three different regions Yakutia as objects study, namely: Megino-Kangalas District (Central Yakutia); Vilyuisk (Western Oymyakon (Eastern Yakutia). The content certain groups substances (phenolic compounds, tannins, flavonoids, and phenylpropanoids) in vegetable raw ma...