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Table 2 Fibrolytic enzyme of the N. frontalis + M. gottschalkii co-culture YakQH5 grown on the 5 sorts of substrates

From: Roughage biodegradation by natural co-cultures of rumen fungi and methanogens from Qinghai yaks

Item

Wheat straw

Corn stalk

Rice straw

Sorghum straw

Oat straw

Xylanase (mU/mL)

Day2

4811 a

3572 c

2900 d

4520 b

3998 c

Day3

10,703 a

7812 c

5926 d

8995 b

5911 d

Day4

12,910 a

9501 bc

7673 c

11,046 b

8815 c

Day5

8361 c

10,598 a

8235 c

9985 ab

9467 b

Average

9196 a

7871 c

6183 c

8637 b

7048 c

CMCase (mU/mL)

Day2

190 c

173 c

381 a

150 c

270 b

Day3

285 c

301 c

570 a

220 c

460 b

Day4

378 c

396 c

892 a

386 c

592 b

Day5

450 d

501 c

929 a

439 d

721 b

Average

326 c

343 c

693 a

299 c

516 b

FPase (mU/mL)

Day2

260 b

189 c

367 a

210 b

217 b

Day3

331 d

396 c

651 a

298 c

486 b

Day4

469 d

493 c

970 a

425 d

573 b

Day5

531 c

558 c

1187 a

479 d

683 b

Average

398 c

263 d

795 a

353 cd

489 b

FAE (mU/mL)

Day2

2.0 a

2.5 a

1.9 b

0.9 c

1.7 b

Day3

5.5 b

6.4 a

4.9 c

3.1 d

3.8 cd

Day4

8.9 a

8.1 b

9.1 a

4.6 d

5.9 c

Day5

9.0 c

10.5 a

11.3 b

7.5 d

7.7 d

Average

6.5 a

6.9 a

6.8 a

4.0 c

4.8 b

AE (mU/mL)

Day2

59 d

85 b

80 b

67 c

99 a

Day3

98 d

145 ab

130 b

106 c

157 a

Day4

157 c

198 a

169 b

177 b

193 a

Day5

183 d

245 a

175 d

199 c

208 b

Average

125 c

168 a

139 b

111 d

113 d

CAE (mU/mL)

Day2

0.7 c

1.5 b

0.8 c

3.9 a

0.9 c

Day3

1.2 d

2.8 b

2.0 c

8.8 a

2.3 b

Day4

2.0 d

3.5 b

2.6 c

13.6 a

3.1 b

Day5

2.3 d

4.9 b

2.8 d

20.5 a

3.6 c

Average

1.6 d

3.2 b

2.1 c

11.7 a

2.5 c

  1. CMCase, carboxymethyl cellulase; FPase, filter paper ase; FAE, ferulic acid esterase; AE, acetyl esterase; CAE, p-coumaric acid esterase; Day2-Day5: along the 5-day incubation; a, b, c, d indicate statistical difference (p < 0.05)