Organic acid mediated phosphorus mobilization from phytin and glycerophosphate
1 Department of Chemistry, Jai Narain Vyas University, Jodhpur 342001 Rajasthan, India.
2 ICAR - Central Arid Zone Research Institute, Jodhpur-342008 Rajasthan, India.
Research Article
GSC Advanced Research and Reviews, 2023, 15(01), 062–068.
Article DOI: 10.30574/gscarr.2023.15.1.0103
Publication history:
Received on 22 February 2023; revised on 08 April 2023; accepted on 10 April 2023
Abstract:
More release of mineral-P from organic P compounds (phytin and glycerophosphate, 200 mg L-1) was observed due to the action of 10 mg L-1 organic acids (formic, citric, lactic, malic).Lactic acid was found to be most effective followed by formic and citric acid. In general, malic acid showed poor response as compared to the other organic acids tested for P mineralization. The inorganic P (Pi) release from glycerolphosphate, by different organic acids, was 62-66% higher than that release from phytin at the concentration of 10 mg L-1. The maximum Pi release from glycerophosphate and phytin by the action of different organic acids varies between 7.50 mg L-1 to 8.26 mg L-1 and 4.64 mg L-1 to 5.10 mg L-1 respectively. The optimum time of incubation for more P mobilization from glycerophophate varies between 90 and 135 minutes while phytin required from 60 to 105 minutes. The efficiency of different organic acids towards mineralization of P follows the order: lactic acid > formic acid > citric acid > malic acid.
Keywords:
Glycerophosphate; Phytin; Organic acids; P mineralization
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