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Table 2 Changes in the VOCs (%) of alcohols and acids of MCR ensilage with Lactic acid over time

From: Enriching the nutritive value of marigold (Tagetes erecta L) crop residues as a ruminant feed by lactic acid bacteria during ensilage

No

Compounds

CAS

0 day (cK)

3 day

6 day

9 day

12 day

15 day

30 day

Alcohols

36

(2r,3r)-(−)-2,3-butanediol

24,347–58-8

0.04 ± 0.04a

0.38 ± 0.26a

0.21 ± 0.13a

0.56 ± 0.34a

0.8 ± 0.11a

0.25 ± 0.05a

0.21 ± 0.02a

37

leaf alcohol

928–96-1

1.42 ± 0.19A

0.46 ± 0.16B

0.27 ± 0.04B

0.32 ± 0.06B

0.33 ± 0.07B

0.13 ± 0.07B

0.09 ± 0.09B

38

1-hexanol

111–27-3

0.42 ± 0.07A

0.21 ± 0.05B

0.18 ± 0.02B

0.18 ± 0.01B

0.17 ± 0.02B

0.15 ± 0.01B

0.04 ± 0.04B

39

9-oxabicyclo[6.1.0]nonan-4-ol

69,853–85-6

0.03 ± 0.02

ND

ND

ND

ND

ND

ND

40

phenylethyl alcohol

60–12-8

0.49 ± 0.27a

0.49 ± 0.39a

0.33 ± 0.33a

0.58 ± 0.19a

0.66 ± 0.14a

1.02 ± 0.15a

0.36 ± 0.19a

41

trans-chrysanthenol

38,043–83-3

0.15 ± 0.01C

0.25 ± 0.02B

0.27 ± 0.02B

0.27 ± 0.01B

0.27 ± 0.01B

0.31 ± 0.01B

0.39 ± 0.02A

42

2-(4-methylphenyl)propan-2-ol

1197-01-9

0.25 ± 0.02 a

0.3 ± 0.03a

0.37 ± 0.05a

0.34 ± 0.05a

0.35 ± 0.15a

0.34 ± 0.21a

0.62 ± 0.08b

43

(3-methyl-oxiran-2-yl)-methanol

872–38-8

ND

0.48 ± 0.22CD

2.82 ± 0.56AB

2.18 ± 0.59ABC

1.7 ± 0.68BCD

3.25 ± 0.1AB

4.14 ± 0.43A

44

3-methylcyclopentane-1,2-diol

27,583–37-5

ND

ND

ND

ND

0.11 ± 0.06A

ND

ND

45

benzyl alcohol

100–51-6

ND

0.38 ± 0.15a

0.44 ± 0.2a

0.27 ± 0.02ab

0.23 ± 0.03ab

0.26 ± 0.05ab

0.38 ± 0.07a

46

(+)-maaliol

527–90-2

ND

0.19 ± 0.02 BC

0.22 ± 0.05 BC

0.32 ± 0.04B

0.39 ± 0.04B

0.33 ± 0.03B

0.65 ± 0.11A

47

2-butanol

15,892–23-6

ND

ND

0.58 ± 0.04a

2.64 ± 2.26a

0.56 ± 0.06a

1 ± 0.17a

1.02 ± 0.26a

48

3-methylcyclopentane-1,2-diol

27,583–37-5

ND

ND

ND

ND

0.11 ± 0.06A

ND

ND

49

decan-1-ol

112–30-1

ND

ND

ND

ND

ND

ND

0.23 ± 0.01A

Acids

50

acetic acid

64–19-7

0.57 ± 0.01b

4.18 ± 1.40a

2.98 ± 1.03ab

5.37 ± 1.50a

3.17 ± 0.33ab

3.27 ± 0.43a

3.19 ± 0.37ab

51

cyclohexanebutanoic acid

4441-63-8

ND

0.16 ± 0.09a

0.14 ± 0.09a

0.17 ± 0.09a

0.22 ± 0.08a

0.03 ± 0.01a

ND