(iii) Heat treatment: Samples obtained from section (ii) were treated at 3 different temperatures, respectively, 25, 50 and 85°C. Each set of the sample treatment was finally kept at 4°C, 25°C in dark and 25°C with light exposure.
(iii) Heat treatment: Samples obtained from section (ii) were treated at 3 different temperatures, respectively, 25, 50 and 85°C. Each set of the sample treatment was finally kept at 4°C, 25°C in dark and 25°C with light exposure.