Figure 4 shows a reduction in the L* value, which ranges from 0 (black) to 100 (white), of sugar-free guava jam with added prebiotics during storage, indicating a darkening of the product and a declining luminosity trend.
Figure 4 shows a reduction in the L* value, which ranges from 0 (black) to 100 (white), of sugar-free guava jam withadded prebiotics during storage, indicating a darkening of the product and a declining luminosity trend.