The Effect of Mandarins (Citrus spp.) Scions on Peel Components and Juice Quality

The effects of mandarin scions on peel components and juice quality parameters were investigated in this study. Peel flavor components were extracted by using cold-press and eluted by using n-hexane. Then all analyzed by GC-FID and GC-MS. Total soluble solids, total acids, pH value, ascorbic acid as well as density and ash were determined in juice obtained from mandarin scions. Twenty-seven, Twenty-seven, thirty-five and forty peel components in Unshiu, Clementine, Minneola tangelo and Lee varieties respectively including: aldehydes, alcohols, esters, monoterpenes, sesquiterpenes and other components were identified and quantified. The major flavor components were linalool, limonene, ?-terpinene, (E) B-ocimene, B-myrcene, ?-pinene. Among the four scions examined, Lee showed the highest content of aldehydes and Clementine showed the highest content of TSS/TA. Since the aldehyde and TSS/TA content of citrus are considered as two of the more important indicators of high quality, variety apparently has a profound influence on citrus quality.