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Ethylene is the plant hormone that accelerates the fruit ripening. During the process of ripening the ethylene hormone triggers the genes that in turns make the enzymes that cause the ripening. The enzyme hydrolases, kinase, amylase, hydrolase, pectinase etc. are produced during the process ripening. These enzymes can bring about the changes which will result in the ripening of the fruit. The process of ripening makes the fruits appealing, sweet, the colour also changes as the chlorophyll is broken down and sometimes new pigments are also formed. The acids that make the fruits sour are also broken down, the mealy starch are converted into sugar, hard nature get softened and sweet aroma are formed. So that the fruits after ripening becomes soft, juicy, sweet, fragrant and also colorful too.

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