Constituents of Yuzu (Citrus junos) Oil

Abstract

Eight monoterpenic hydrocarbons, 15 sesquiterpenic hydrocarbons, 6 aliphatic aldehydes, aromatic aldehyde, 3 terpenic aldehydes, 1 terpenic ketone, 1 aliphatic ketone, 1 phenol, 1 phenol ether, 8 terpenic esters, 3 aliphatic alcohols, 9 monoterpenic alcohols, 9 sesquiterpenic alcohols, 1 aromatic alcohol, 5 fatty acids and 2 coumarin compounds were identified in cold-pressed peel oil of Yuzu (Citrus junos) based on gas chromatography, infrared spectrometry, nuclear magnetic resonance spectrometry and capillary GLC connected with fast-scan mass spectrometry. Structures of the sesquiterpenic hydrocarbons, r-elemene and bicycloelemene are discussed.

Volatile constituents of yuzu (Citrus junos Sieb. ex Tanaka) peel oil: A review

“…It is difficult to provide representative percentages of each constituent because of their variations in function of the cultivar, production site, storage condition, etc Moreover, although most of the articles report the percentages of each component, the quantification methods are not always appropriate for Citrus cold‐pressed oils which generally contain non‐volatile molecules such as furocoumarins 40 . Hence, phellopterin 19 and auraptene 20 have been reported in Yuzu cold‐pressed oils 16 . Since these molecules cannot be volatilized in the GC injector, they cannot be detected and therefore quantified in the whole oil 41 .…”

Anti-Inflammatory Activities of Isogosferol, a Furanocoumarin Isolated from Citrus junos Seed Shells through Bioactivity-Guided Fractionation

“…It also has larvicidal and osteoclastogenic inhibitory effects [16]. The known chemicals isolated from C. junos include coumarins, limonoids, flavonoids, and triterpenoids [17]. The actual use of C .…”

Chemical Diversity and Redox Values Change as a Function of Temporal Variations of the Essential Oil of a Tropical Forest Shrub

“…* Quantities are averaged out of three replicates. All compounds were identified by MS and RI in accordance with experimental; # Identified by[11]; NI: Not identified; MW = molecular weight; H : Diversity Index; S RO : Weighted Average Redox Standard; R&M: Ramos & Moreira Index; tr = Trace (relative percentage value less than 0.05%). Autumn-Mar: March and May: May; winter-Jul: July and Aug: August; spring-Oct: October and Nov: November; and summer-Jan: January and Feb-February.…”

“…# Identified by[11]; NI: Not identified; MW = molecular weight; H': Diversity Index; S RO : Weighted Average Redox Standard; R&M: Ramos & Moreira Index; tr = Trace (relative percentage value less than 0.05%).…”