Molecular conformation and dilute solution properties of barley β-glucan: unveiling β-glucan as a highly flexible biopolymer under different processing conditions

Chemical and Biological Technologies in Agriculture

Table 2 The values of Berry number (C[η]), exponent b (slope of log η_sp vs. log C), Huggins and Kramer constant of BBG at different conditions

Treatments		Berry number	b	R²	K_H	K_K
Temperature (◦C)	25	0.145–0.580	1.229	0.9993	1.05	0.16
	35	0.128–0.541	1.266	0.9996	1.41	0.32
	45	0.114–0.511	1.260	0.9990	1.53	0.38
	55	0.112–0.503	1.212	0.9988	1.15	0.23
	65	0.105–0.532	1.203	0.9988	1.05	0.17
pH	3	0.132–0.620	1.195	0.9979	0.86	0.054
	5	0.129–0.582	1.253	0.9976	1.36	0.25
	7	0.142–0.637	1.233	0.9989	1.04	0.13
	9	0.135–0.636	1.225	0.9986	1.01	0.12
Sucrose concentration (%)	10	0.135–0.608	1.260	0.9993	1.24	0.22
	20	0.125–0.590	1.260	0.9993	1.14	0.18
	30	0.125–0.589	1.215	0.9990	0.98	0.12
	40	0.116–0.548	1.217	0.9995	1.06	0.18
NaCl (mM)	5	0.143–0.605	1.270	0.9992	1.31	0.24
	25	0.143–0.642	1.188	0.9959	0.78	0.03
	50	0.135–0.538	1.296	0.9977	1.90	0.48
	100	0.139–0.624	1.249	0.9994	1.20	0.20
CaCl₂ (mM)	5	0.143–0.607	1.232	0.9987	1.1	0.16
	25	0.137–0.583	1.256	0.9993	1.29	0.25
	50	0.124–0.526	1.257	0.9976	1.56	0.37
	100	0.139–0.588	1.253	0.9992	1.26	0.23