Time

Feed batch (Substrate)

Diafiltration (Buffer)

TS (SD)

RS/TS (%)

TS (SD)

RS/TS (%)

0

480 (4.5)

5.5

509 (34)

3.3

1

142.8 (9.3)

8.6

248.1 (17.2)

3.9

2

199.2 (1.5)

18.5

223.5 (25.7)

7.5

3

270.0 (17.5)

13.5

258.3 (5.5)

7.7

4

226.5 (11.0)

16.4

287.1 (13.5)

9.4

5

331.4 (8.3)

17.2

335.2 (12.5)

8.7

6

318.5 (11.5)

16

450 (8.6)

4.9

Table 4: Total sugar (TS) and values of RS / TS ratios of the AOS production by addition of either substrate (arabinan 5% WV-1) or of buffer (pH 4.5), arabinan mixing ratio was 50%. Substrate or buffer was added for 6 h. TS and RS values were means of 3 replicates. Time 0 represents values in the feed.