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. 2019 Jun 12;20(12):2856. doi: 10.3390/ijms20122856

Table 1.

Values of the Stern–Volmer constant (KSV) for tryptophan fluorescence quenching of RSA, binding constants (Ka), and the number of binding sites (n) for the interaction between RSA and piperine at 288 K, 298 K, and 308 K.

Temperature (K) KSV (×104 M−1) Ka (×104 M−1) n
288 3.77 ± 0.09 3.90 ± 0.67 0.93
298 2.78 ± 0.12 2.77 ± 0.54 0.88
308 2.54 ± 0.09 2.06 ± 0.65 0.83