EFFECT OF BEES, CARNAUBA MIXED WAX COATING ON SHRINKAGE PATTERN, WEIGHT LOSS, RESPIRATION AND SENSORY OF SWEET ORANGE CV. CANH

Abstract

The impact of bees, carnauba wax - mixed wax (MW) on shrinkage pattern, respiration, sensory weight loss of Vietnamese sweet orange cv. Canh was studied, by coating fruit with 4, 6, 8 and 10% MW and stored at ambient temperature (22±2oC) RH 80±5% for 20 days, while uncoated fruit were used as control. The shrinkage pattern on the top, middle and bottom were collected during the storage time. The results presented that 8%MW coating at ambient temperature reduced the wrinkle, respiration, maintained sensory values, and weight loss compare with the control fruit. Thickness of orange cv. Canh coated at 10%MW was highest. No significant change on the top, middle, bottom was recorded due to treatment waxing. The number of lenticels and stomata was observed by Scanning Electron Microscope (SEM).