4. Physical, chemical and bioactive properties of onion (Allium cepa L.) seed and seed oil
نویسندگان
چکیده
Onion (Allium cepa L.) is one of the economically important vegetable crops grown in Turkey. In this study, some physico-chemical and antioxidant properties, volatile compounds and fatty acid composition of ten different onion seeds were investigated. The fatty acid composition and volatile compounds were analyzed by Gas Chromatography (GC) and Gas Chromatography–Mass Spectrometry (GC-MS), respectively. Physico-chemical analysis showed that onion seeds possessed high amount of oil (21.86%-25.86%) and crude protein (15.7%26.1%). It was determined that moisture content of samples was in the range of 6.49-9.79% while ash content was between 3.584.80%. GC results revealed that onion seed oil was rich in linoleic acid (49.42-60.66%) which was followed by oleic and palmitic acid, respectively. The refractive index of seed oils was 1.45551.4771. There were a large number of substances such as hydrocarbon, alcohol, acid, ester and sulfur-containing compounds. It was determined that phenethyl alcohol and1-hexanol were the most abundant volatile compounds in samples. It could be concluded Correspondence/Reprint request: Dr. Hasan Yalcin, Department of Food Engineering, Faculty of Engineering Erciyes University, 38039 Kayseri, Turkey. E-mail: [email protected] Hasan Yalcin & Hatice Kavuncuoglu 54 that onion seeds can be utilized in food industry due to their physico-chemical properties and contents of oil and volatile components.
منابع مشابه
Screening of Local and Exotic Onion (allium Cepa L.) Cultivars for Seed Production Potentiality
Onion (Allium cepa L., 2n=16) is a cross-pollinated and biennial short type vegetable and most of the important spice as well as vegetable crops throughout the world. Bulb is the main edible portion of onion plant, which is a modified organ and constituted by the thickened fleshy leaf sheaths and stem plate (Purseglove, 1988). The leading onion producing countries of the world are China, India,...
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