1390-6542
1390-6542
S1390-65422017000500067
10.29019/enfoqueute.v8n5.181
Ecuador
Cuba
Cuba
Ecuador
00
12
2017
00
12
2017
8
5
67
75
[
2009
9
2
2
442-8
]
[
2014
70
9-15
]
[
AOAC
2012
]
[
1957
4
]
[
2015
99
1
1
107-13
]
[
2010
18
1-2
1-2
17-26
]
[
2010
93
1
1
773
]
[
2012
95
5115-26
]
[
1955
11
1
]
[
2013
14
2
2
]
[
2015
83
17-22
]
[
2010
93
1
1
412
]
[
2016
99
2
2
1-6
]
[
2011
94
2465-74
]
[
2015
202
12-9
]
[
2015
98
3
3
2055-62
]
[
2014
193
21-31
]
[
2017
2
1
1
245-7
]
[
2014
15
2
2
]
[
2010
5
2
2
111-20
]
[
2015
200
102-6
]