Tannin characteristic from Hevea brasiliensis and Durio zibethinus with pressure and hot water extraction

Abstract

The aim of this study was selected the best bark, temperature and pressure for extraction phenol and tannin with hot water solvent. The extract was characterised into condensed tannin and hydrolysable tannin with spectrophotometer. Tannin are plant secondary compound that influence feed metabolisme in the rumen and pasca-rumen organ. Tannin have ability to bounding feed protein and other nutrient. Tannin classified into condensed and hydrolysable tannin, condensed tannin is a bypass agent to decrease deamination and other nutrient degradation in the rumen organ, furthermore hydrolysable tannin may divide as phenol and sugar group in the rumen. Phenol group form HT may become antioxidant in the blood and influence rumen ecology. The result for this study is Hevea brasiliensis has phenol and tannin content more than Durio zibethinus with P<0.01 if using hot water extraction. Temperature significantly influence concentration of phenol and tannin content, at 120 °C phenol and tannin extract more than 70 °C with P< 0.01. Phenol extract significantly effected by pressure, 1 bar get phenol and tannin more than 2 bar with P<0.01. Treatment in this study have interaction, so generally concluded that to get phenol and tannin extract the highest used Hevea brasiliensis with temperature 120 °C and pressure 1 bar.