유자의 부위별 주요 화학적 성분을 조사하기 위하여 ,일반성분, 무기질, 유리당, 유기산, 아미노산 및 향기성분 등을 분석하여 다음과 같은 결과를 얻었다. 유자의 부위별 비율은 과피가 44.7%, 과육이 42.9% 및 씨가 12.4%로 나타났다. 조단백질, 조지방 및 조회분은 과피가 과육에 비하여 더 높게 나타났으며, 수분, 탄수화물 및 가용성물질은 과육이 과피보다 높게 나타났다. 당은 과피에 6.2%, 과육에 9.8% 이며 과피는 과당이 3.3%

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.

• 김용두
• 장미정
• 강성구