Analysis of Limonoids in Citrus Seeds
Limonoids are a group of chemically related triterpene derivatives found in the Rutaceae and Meliaceae families. Among the 38 limonoids reported to occur in citrus and its hybrids, four are known to be bitter in taste. These are limonin, nomilin, ichangin, and nomilinic acid. Limonin is the primary cause of citrus juice bitterness. This problem occurs in a variety of citrus juices, and it is economically important to the citrus industry because bitter juices have a lower market value for producers. Dekker (1988) has reviewed limonoid bitterness and postharvest juice debittering methods. Hasegawa (1989) has reviewed limonoid biochemistry and preharvest approaches to the bitterness problem.
KeywordsHexane Fractionation Flavonoid Glycoside Aspergillus
Ratio of the distance traveled by a compound divided by the distance traveled by the solvent front (used in TLC)
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