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. 2021 May 10;10(5):1033. doi: 10.3390/foods10051033

Table 4.

IR data comparing whey protein standards to ISO100 protein powder.

Protein Amide I (cm−1) Amide II (cm−1)
β-lactoglobulin 1635 ± 1 1537 ± 2
α-lactalbumin 1657 ± 5 1541 ± 2
BSA 1651 ± 1 1528 ± 4
IgG 1642 ± 4 1540 ± 1
ISO100 protein powder 1646 ± 0 1539 ± 0