Research Article
Biosorption of Microelements by Spirulina: Towards Technology of Mineral Feed Supplements
Table 4
Identified functional groups on surface of natural and Cu(II)-loaded Spirulina biomass.
| | Bond | Spirulina sp. | Spirulina maxima | Cu(II)-Spirulina maxima |
Component | | Wave number, cm−1 |
| | ≣P–O–, –SO3– | 861.48 | 832.89 | — | Polysaccharides | | CC/CO, OH | 1049.44
1150.86 | 1047.54
1149.59 | 1049.80
1154.21 | Polysaccharides, Polysaccharides ethers | | C–O–C, OH | 1241.96 | 1243.45 | 1235.52 | Amides, Polysaccharides, Esters | | COO− | 1400.08 | 1401.07 | 1407.45 | Carboxyl group | | CH/CH2 | 1454.64 | 1452.26 | 1452.12 | Alkyl chain | | NH | 1541.50 | 1544.70 | 1536.32 | Secondary amides | | C=O, CN | 1654.16 | 1657.15 | 1656.16 | Protein primary amides | | CH3 | 2874.17 | 2874.50 | 2874.13 | Alkyl chain | | CH3 | 2927.79 | 2927.72 | 2927.40 | Alkyl chain | | CH2 | 2960.11 | 2960.13 | 2959.39 | Alkyl chain | | NH3 | 3302.49 | 3310.08 | 3372.02 | Amines |
|
|
