期刊
出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/03601230802599019
关键词
Agro-environmental pollution; alginate-starch beads; controlled release devices; fungicide; pesticides; release dynamics
资金
- Council of Scientific and Industrial Research, New Delhi-India [9/237(0115)/2007-EMR-I]
This paper describes the synthesis of starch and alginate beads as controlled release formulations. Different formulations of the fungicide, thiram, were prepared by using BaCl2 and AlCl3 as crosslinkers. The beads thus formed were characterized by FTIR and swelling studies. Formulation characteristics like entrapment efficiency, bead size, percentage equilibrium swelling have been evaluated. The release studies of the fungicide from the beads were carried out in vitro and in soil columns. The beads prepared with AlCl3 have shown more swelling as well as the fungicide release in comparison to beads prepared with BaCl2. From the soil column studies it was observed that the release of pesticide from the beads occurred in very controlled and sustained manner.
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