COLOURING PIGMENTS FROM CRUDE FORPRESS OILS FROM COTTON SEEDS
Authors
Niyazov Mamurjon Bobonazarovich, Ishankulova Gavkhar Norkulovna, Akhmedov Azimjon Normuminovich

Share
Annotation
Vegetable oils contain accompanying substances and impurities of various compositions and properties that affect the quality of the finished product and further processing processes. To remove these substances, a refining process is carried out, in particular adsorption refining using activated carbon, silica gel, zeolite, etc.
This scientific article presents the results of a study on the bleaching processes of cottonseed oils and the fact that the amount of coloring substances in cottonseed oil, namely carotenoids and gossypol, is higher in oils obtained from grades III-IV. It was also found that the mass fractions of chlorophyll and bound gossypol in the oil obtained from a mixture of grades III-IV were higher than in the cottonseed oil obtained from a mixture of grades I and II.
Keywords
Authors
Niyazov Mamurjon Bobonazarovich, Ishankulova Gavkhar Norkulovna, Akhmedov Azimjon Normuminovich

Share
References:
- Technology of production of vegetable oils / [V.M. Kopeikovsky, S.I. Danilguk, G.I. Garbuzova et al.]: edited by V.M. Kopeikovsky – M.: Light and food industry, 1982-416 p.
- Korostelev V.M., Maznyak I.E. Results of the oil and fat industry for 1985 // Oil and fat industry. - Moscow, 1986. - No. 6. - P. 16-22.
- Holapek М., Jandera P., Zderadika P., Hruba L.: Characterization of triacylglycerol and diacylglycerol composition of plant oils using high-performance liquid chromatography-atmospheric pressure chemical ionization mass spectrometry. Journal of Chromatography A, 1010, 2, 2003, p.195-215.
- Khodjaev A.A., Ataullaev A.Kh. Improving the quality and reducing losses of cotton seeds // Oil and fat industry. - Moscow, 1986. - No. 12. - P.12-13.
- Akhmedov A.N., Abdurakhimov S.A., Azimov Yu.Kh. Bentonite adsorbents modified with urea solution. Universum: technical sciences, – P. 59-62
- Akhmedov A.N., Erkaeva N.Ch. Improving the process of primary purification of vegetable oils. Journal of innovative technologies. - Karshi, - Special issue. 2021, –P.35-39.
- Akhmedov A.N. Study of the indicators of cottonseed oil obtained by the method of forpressing from low-grade cotton seeds. Universum: Technical sciences. Issue: 4 (61) April 2019 Moscow 2019, -P.23-26.
- Tyutyunnikov B.N., Naumenko P.V., Tovbin I.M., Faniev G.G. Technology of fat processing. Moscow: Food industry, 1970.-652 p.
- Karishma R., Lakshmi Sahithya U., Suneetha P., et al. Determination of Total Gossypol and Free Gossypol Content in different varieties of Bt and Non Bt Cotton seed extracts by High- Performance Liquid Chromatography (HPLC) // Research journal of biotechnology.-2016.-Vol.11.-№.2.-PP.70-74.
- Abou–Donia S.A., Laches J.M., Abou–Donia M.B. High performance liquid chromatography analysis of gossypolum. J. Chromatography. 1981, 206 (3), 606–610.
- Technical Requirements 88.06-27:2011. Unrefined high-gossypol cottonseed oil. Appendix "B". Method for determining the proportion of free gossypol. Tashkent. Gosstandart. 2011. – Page 9.
