GC-MASS ANALYSIS OF BITTER ORANGE PETITGRAIN BIGARADE OIL PRODUCED IN EGYPT AND STORED UNDER DIFFERENT TEMPERATURES | ||||
| Arab Universities Journal of Agricultural Sciences | ||||
| Article 15, Volume 13, Issue 3, September 2005, Page 795-805 PDF (175.17 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajs.2005.15303 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| A Abd El-Rashid,* | ||||
| Food Science Department, Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, Cairo, Egypt. | ||||
| Abstract | ||||
| Identification of bitter orange petitgrain bigarade oil produced in Egypt was studied by GC/MS on carbowax – 20M colum. It was found that linalyl acetate, which represented more than 25% of the whole oil was considered to be the major component of ester fraction; while linalool, which ranged from (30-33.7%) was the main alcohol components. On the other hand, limonene, (E)-β-ocimene,myrcene and β-pinene were the highest monoterpene hydrocarbons. Room temperature (about 20°C), 4 and -18°C were used for storing the samples for 6 mounths. No pronounced effect was noticed on the composition of petitgrain oil with the exception of slight effect on the color, acid number and solubility (v/v 70% alcohol) when samples stored at 20°C. Statistical analyses proved that 4 ºC could be considered the best fit temperature at which no significant changes occur in both the major chemical analyses and the main identified volatile constituents. | ||||
| Keywords | ||||
| Citrus aurantium; Petitgrain bigarade oil composition; Automated GC/MS; Linalyl acetate; Linalool | ||||
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