Composition and Structure of Phytic Acid Derivatives from Rice Bran

Removal of Cr3+ ions by phytic acid derivatives from rice bran

“…This result might be due to the increase in phytin solubility with increasing pH of the solution. As shown in Makarenko et al (2018), the phytin solubility at pH 3 is 0.239 g/100 g water, while at pH 5 it is 0.189 g/100 g. The result indicates that the removal of chromium(III) occurs due to interaction of chromium ions and phytin in solution with the formation of insoluble compounds. The change in the pH of the medium during chromium ion removal from depended on the initial concentration of the solute (Table 1).…”

Greening Biobased Polybenzoxazine Network: Three Benefits in One Go

“…Understanding the tenets of green chemistry and sustainable development demands exploration of highly efficient ecofriendly FR additives with benefits of ease of incorporation within the monomer or polymeric framework. Recently, plant-sourced phytic acid (PA, inositol hexakisphosphate) has been acknowledged as an alternative non-toxic green FR biomaterial due to a high inherent phosphorus content (28 wt%) 11,12 and is abundantly present in soil and plants. PA contains six phosphate groups with 12 acidic hydroxyl functionalities of different pK a values (1.5, 6 protons; 5.7−7.6, 2−3 protons; >10, up to 4 protons) 13 and acquires variable negative charge depending upon environmental conditions.…”

“…Recently, plant-sourced phytic acid (PA, inositol hexakisphosphate) has been acknowledged as an alternative non-toxic green FR biomaterial due to a high inherent phosphorus content (28 wt%) , and is abundantly present in soil and plants. PA contains six phosphate groups with 12 acidic hydroxyl functionalities of different p K a values (1.5, 6 protons; 5.7–7.6, 2–3 protons; >10, up to 4 protons) and acquires variable negative charge depending upon environmental conditions …”