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. 2020 Jan 28;15(8):1546–1553. doi: 10.4103/1673-5374.274341

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Attenuated total reflection Fourier-transform infrared spectrum of the crude S. pilchardus glycosaminoglycan extract.

(A) Chondroitin sulfate A (black) and S. pilchardus (red) attenuated total reflection Fourier-transform infrared spectra, n = 5. (B) Principal component analysis Score Plot (PC1 vs. PC2) of S. pilchardus compared against a bone fide glycosaminoglycan library. Heparan sulfate (cyan), heparin (blue), chondroitin sulfate with composition not stated (black, open circles), chondroitin sulfate A (black filled circles), chondroitin sulfate C (grey), dermatan sulfate (orange), over-sulfated chondroitin sulfate (magenta), hyaluronic acid (green), S. pilchardus glycosaminoglycans (red filled circles).