File Name : supplementary fig1a.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1b.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1c.tif

Caption :  supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1d.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1e.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1f.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1g.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1h.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1i.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1j.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1k.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1l.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.

File Name : supplementary fig1m.tif

Caption : supplementary fig 1. mass spectra of derivatized scfas. (a) formic acid, (b) acetic acid, (c) propionic acid, (d) isobutyric acid, (e) butyric acid, (f) 2-methylbutyric acid, (g) isovaleric acid, (h) valeric acid, (i) 2-methylvaleric acid, (j) 3-methylvaleric acid, (k) hexanoic acid, (l) 2-methylhexanoic acid, (m) heptanoic acid.