Method for improving fruit color
A fruit and fruit surface technology, applied in the field of production, can solve problems such as shortening shelf life and reducing storability, and achieve the effects of improving sensitivity, improving internal and external quality, and promoting coloring
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example 1
[0024] Example 1. At the beginning of October 2003, unbagged fruits were treated with exogenous ALA one month before Fuji apple ripening and picking. When harvested, the anthocyanin content of the pericarp of the control fruit was 164.07nmol / g FW, while the anthocyanin content of the fruit treated with 100-500mg / L ALA was 322.08nmol / g FW, 362.34nmol / g FW and 238.30nml / g FW was extremely significantly higher than that of the water-treated control (Table 1). In addition, the determination of the soluble solid content of the fruit showed that the content of ALA-treated fruit was significantly higher than that of the control. Among them, the average of the control fruit is 11°, and the 100-500mg / LALA treatment fruit is 12.05°, 14.15° and 13.35° respectively. Therefore, the flavor of the fruit is obviously better than that of the water control
example 2
[0025] Example 2. At the beginning of October 2003, the bagged fruit was treated with exogenous ALA one month before Fuji apple ripening and picking. When harvested, the anthocyanin content of the control fruit pericarp was 148.29nmol / g FW, while the anthocyanin content of the fruit treated with 300mg / LALA was 300.00nmol / g FW, which was also significantly higher than that of the water control (Table 1).
[0026] Example 3. In mid-September 2004, apple fruits were treated with 5-aminolevulinic acid, levulinic acid and glutamic acid respectively, and then samples were taken at different times to measure the anthocyanin content of the pericarp, and the anthocyanin content of the pericarp was found to be 4 days after the treatment It has been significantly higher than the control, and in the subsequent measurement process, it is always higher than the control (September 21 to October 30), indicating that levulinic acid and glutamic acid treatment can indeed promote apple coloring (...
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