Scientia Agricultura Sinica ›› 2004, Vol. 37 ›› Issue (10): 1537-1543 .doi: 10.3864/j.issn.0578-1752.041023

• HORTICULTURE • Previous Articles     Next Articles

Study on Separation and Purification of Protein from Ginkgo Seed and Its Antioxidant Activity

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  1. 华中农业大学食品科学系
  • Received:2002-10-18 Revised:1900-01-01 Online:2004-10-20 Published:2004-10-20

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Abstract: The ginkgos seed of Dafozhi were selected and used as experimental materials. Albumin (GAP), globulins (GGP) and salt-soluble protein (GSP) were isolated from ginkgo seeds by salting-in and salting-out methods and the isolation and preparation conditions were studied. There were mainly albumin and globulins in ginkgo seeds and very few proclamin, alkali-soluble protein, complex protein. As the result of chemical composition analysis shown, GAP was the highest purity one among GAP, GGP and GSP, and the amino acids composition of GAP were diversity and well composed. They are high quality protein. The results of scavenging ·OH generated by Fenton system showed the antioxidant activity of GAP was much higher than GGP.

Key words: Ginkgo seed, Salting-in, Salting-out, Albumin, Antioxidant

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