Table 1.
EPN beads | Number of EPN per bead | EPN release rate (%) | EPN survival rate (%)*** | |
---|---|---|---|---|
Incorporated* | Released** (Mean ± SE) | (Mean ± SE) | (Mean ± SE) | |
0.2 K | 172 | 134.7 ± 3.1 | 78.3 ± 1.8 | 99.8 ± 0.1 |
0.5 K | 430 | 265.4 ± 9.9 | 61.7 ± 2.3 | 99.8 ± 0.1 |
1 K | 859 | 607.9 ± 18.5 | 70.8 ± 2.2 | 99.4 ± 0.2 |
2 K | 1,718 | 1,483.8 ± 25.4 | 86.4 ± 1.5 | 98.6 ± 0.3 |
4 K | 4,295 | 3,758.1 ± 91.4 | 87.5 ± 2.1 | 98.1 ± 0.4 |
*The number of incorporated EPN per bead estimated from the mean volume of a droplet of EPN-containing glycerol-alginate solution (85.9 ± 0.7 μl, mean ± SE, n = 50). EPN-containing glycerol-alginate solution was prepared to have approximately 200, 500, 1,000, 2,000 and 4,000 EPN per 100 μl and simply named 0.2 K, 0.5 K, 1 K, 2 K and 4 K EPN beads, respectively. **After 7 days of storage of EPN beads under the influence of 18% of glycerol, glycerol-induced EPN quiescence was broken by diluting out glycerol of beads with excess of water and the number of released EPN was individually counted. ***The number of live EPN divided by the number of all the escaped EPN