Chemical composition and biological activity of seed oil of amaranth varieties

• Main Authors: Bozorov Soyibjon S., Berdiev Nodir Sh., Ishimov Uchkun J., Olimjonov Shukhratjon S., Ziyavitdinov Jamolitdin F., Asrorov Akmal M., Salikhov Shavkat I.
• Format: Article
• Language: English
• Published: Sciendo 2018-07-01
• Series: Nova Biotechnologica et Chimica
• Subjects: Amaranth oil; Fatty acids; Refractometric detection; Reversed-phase HPLC; Squalene; Triglycerides
• Online Access: http://www.degruyter.com/view/j/nbec.2018.17.issue-1/nbec-2018-0007/nbec-2018-0007.xml?format=INT

The work is devoted to study of seed oil composition of amaranth varieties: Kharkov, Lera, Andijan and Helios, acclimatized in Uzbekistan. We demonstrated the possibility of using reversed-phase HPLC using a refractometric detector, which allows simultaneous determination of squalene and triacylglycerides in plant seeds and determining the authenticity of amaranth oils. Established seed oiliness ranged from 6.39 to 7.81 % of the initial mass. Amaranth oil samples contained quite large amount of unsaturated fatty acids 72.72 – 73.28 %, 1.17 % of which is omega-3-alpha-linolenic acid. The squalene content in the seeds ranged from 0.35 % to 0.55 %. It was established that the squalene content in oils obtained by extraction is greater than the one obtained by cold pressing. In the triacylglyceride composition of the investigated cold-pressed and extracted oils, no significant differences were found.