1.2.1) to change the brightness value (Lightness) From the study of the effects of refrigeration on the longan yield highly soluble substances that affect skin color changes of the skin along with yai varieties do. To the brightness of the colors the skin Peel (table 2) showed that the brightness of all the processes that are likely to decline continuously. In 24 days of the preservation process, sodium sulfite, involving eye mate. 10% concentrations adapted by Ascot-acid pH4. agencies eye Dubai sodium sulfite mate. 10% concentrations adapted processes with Silicon acid and click pH4 sodium sulfite Dubai eye mate. 10% concentrations adapted pH2 with business processes and Ascot acid, sodium sulfite, involving eye mate. 10% concentrations adapted pH2 with Silicon acid, click click, can maintain the brightness of orange peel skin color have the best statistical significant. With a value of 58.82 58.67 58.53 and 58.55 respectively also is highly acid-5% concentration and click (pH4), and the processes of acid concentration and Ascot-1% (pH4) is equal to 53.15 and 53.95 respectively. Best control method with minimum brightness value equal to 52.04.
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