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. 2013 Nov 13;8(11):e80476. doi: 10.1371/journal.pone.0080476

Table 4. Serum concentration (µmol/L) of SCFAs in rats fed the four test diets with low-fat or high-fat content for 2 weeks (means ± SEM, n = 7).

Fat	Diet	Acetic acid	Propionic acid	Butyric acid	Minor acids	Total SCFA
Low	Fibre-free	723±46^a	49±7^a	26±4	78±2^a	876±59^a
	Pectin	1111±81^b	86±9^ab	45±5	94±7^ab	1336±97^b
	Guar gum	723±39^a	129±20^b	48±7	126±16^b	1026±73^a
	Mixture	766±24^a	71±11^a	36±8	93±8^ab	982±53^a
High	Fibre-free	648±27^a	53±4^a	27±2	94±5	823±32^a
	Pectin	1033±61^b	82±13^ab	28±3	83±11	1226±79^b
	Guar gum	655±22^a	84±9^ab	32±5	87±6	859±32^a
	Mixture	891±54^b	115±13^b	39±5	72±4	1116±71^b

a,b Mean values within a column, for different fat levels, with unlike superscripts are significantly different (P<0.05).