Abstract
Transgenic plant investigations focus on fine-regulation of the recombinant protein expression and purification strategies. In this article, preliminary experiments were done at analytical-scale to decide the best plantibody HB-01 purification strategy. Once it was assumed, the purification efficiency was assessed at different scales (10–600 kg of biomass). The plantibody purity measured by SDS-PAGE and LC-GF was over 90%, yielding 9.9 ± 6.2–18.6 ± 0.9 mg plantibody kg−1 of biomass and 39.9 ± 7.9–48.7 ± 2.1% of recovery. Significant differences were not observed among these parameters at these scales. Plant DNA contents were <3.3 ng mg−1 of plantibody, which is considered very low for the plantibody HB-01 application in the hepatitis B vaccine production.
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