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A Study on the Flavor Constituents of the Citron (Citrus junos)  

Kang Seong-Koo (Department of Food Science and Technology, Sunchon National University)
Jang Mi-Jeong (Department of Food Science and Technology, Sunchon National University)
Kim Yong-Doo (Department of Food Science and Technology, Sunchon National University)
Publication Information
Food Science and Preservation / v.13, no.2, 2006 , pp. 204-210 More about this Journal
Abstract
To accept basic data of utilizing of citron (Citrus junos) as a raw material of industrial produce, major chemical components of citron were investigated. Weight ration of poet flesh md seed of citron were 44.7, 42.9 and 12.4%, respectively. Comparing proximate composition of peel and flesh of citron, peel showed higher in crude protein crude fat and crude ash than flesh but lower in moisture, carbohydrate and soluble solid. The major free sugars of citron were fructose, glucose and sucrose. Peel contained higher in sucrose than flesh, but lower in fructose and glucose. The content of K md P were 309 and 15.9 mg% in peel and 175 and 22.4 mg% in fresh, respectively. The main organic acids of citron were citrate, malate and oxalate. Total organic acid content of flesh (6.6%) was higher than that of peel (4.6%). Total amino acid content of peel and flesh were 671.9 and 315.7 mg%, respectively. Free amino acid content of peel and flesh were 324.3 and 280.7 mg%, respectively, and the major ones were proline, serine, glutamic acid, aspartic acid, and histidine. Total 49 volatile compounds were detected and 26 of these ones were identified in cion. The major volatile component of citron was limonene, which consists of 80% among the total volatiles in peel by all extract methods.
Keywords
Citron(Citrus junos); proximate composition; organic acid; amino acid; volatile component;
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