Effect of Blanching Treatments on b-Carotene Content. Variation in the b-carotene content of carrot slices at different blanching treatments is shown in Fig. 4. It may be inferred that the b-carotene concentration was maximum at 95C during blanching in water and acetic acid. It was also found that b-carotene retention was maximum at 80C during blanching in calcium
chloride solution. b-Carotene retention in carrot slices showed a systematic trend with temperature of processing in all three blanching conditions.