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Table 3 FTIR bands (cm−1) for commercial chitin, extracted chitin from glucose fermentation and from banana peel fermentation

From: Microbial extraction of chitin from seafood waste using sugars derived from fruit waste-stream

Functional groupCommercial chitinExtracted chitin from glucose fermentationExtracted chitin from banana peel fermentation
O–H stretch344734483423
C–H stretch289129252921
C=O stretch of N-acetyl group (Amide I)166016541655
N–H bend, C–N stretch (Amide II)155915601542
CH3 in NHCOCH3 group137914251383
CH2 wagging (Amide III)131513151319
C–O–C stretch107310721073