Comparative chemical composition of seeds of amaranth varieties introduced in Uzbekistan

Authors

  • Shuhratjon S. Olimjonov
  • Jamolitdin F. Ziyavitdinov
  • Soyibjon S. Bozorov
  • Uchqun J. Ishimov
  • Nodir Sh. Berdiev
  • Nadjiya N. Abrekova
  • Muydinjon M. Muminov
  • Akmal M. Asrorov

DOI:

https://doi.org/10.36547/nbc.v19i1.578

Keywords:

Amaranth varieties, Free amino acids, Oiliness, Saccharides, Total amino acids, Vitamins

Abstract

Amaranth is one of ancient cultured plants possessing valuable food quality that is still important in modern agriculture. In this work, we studied the seed chemical compositions of four plant varieties of Amaranthus cruentus and Amaranthus hypochondriacus species, acclimatized in Uzbekistan. Quantity of free amino acids, amino acids compositions of proteins, vitamins, oligo- and polysaccharides were established using chemical and physical methods. Our results on protein content suggest that introduction of these varieties into eco-climate of Andijan region, Uzbekistan, was not very favorable, though proteins resembled up to 9.4 – 13.4 % (w/w) of seed biomass. Of the water-soluble vitamins tested, the vitamin B1 was most abundant (0.81 – 1.14 µg.g-1 of seed) with significant differences among the acclimatized varieties. Impact of feeding rats with seeds flour of studied Helios variety was established. Blood levels of triglycerides, high-, low- and very low-density lipoproteins, catalase activity under hyperlipidemia were analyzed. We found Helios variety seed flour, possibly because of high saccharides content, significantly lowered the levels of total cholesterol (-26 %) and low-density lipoproteins (-21 %). The acclimatized varieties were identified as potentially valuable food source possessing antihyperlipidemic property.

Author Biographies

Shuhratjon S. Olimjonov

Amaranth is one of ancient cultured plants possessing valuable food quality that is still important in modern agriculture. In this work, we studied the seed chemical compositions of four plant varieties of Amaranthus cruentus and Amaranthus hypochondriacus species, acclimatized in Uzbekistan. Quantity of free amino acids, amino acids compositions of proteins, vitamins, oligo- and polysaccharides were established using chemical and physical methods. Our results on protein content suggest that introduction of these varieties into eco-climate of Andijan region, Uzbekistan, was not very favorable, though proteins resembled up to 9.4 – 13.4 % (w/w) of seed biomass. Of the water-soluble vitamins tested, the vitamin B1 was most abundant (0.81 – 1.14 µg.g-1 of seed) with significant differences among the acclimatized varieties. Impact of feeding rats with seeds flour of studied Helios variety was established. Blood levels of triglycerides, high-, low- and very low-density lipoproteins, catalase activity under hyperlipidemia were analyzed. We found Helios variety seed flour, possibly because of high saccharides content, significantly lowered the levels of total cholesterol (-26 %) and low-density lipoproteins (-21 %). The acclimatized varieties were identified as potentially valuable food source possessing antihyperlipidemic property.

Jamolitdin F. Ziyavitdinov

Laboratory of Proteins and Peptides Chemistry, Institute of Bioorganic chemistry, Academy of Sciences of Uzbekistan, 83, M. Ulughbek Str., Tashkent 100125, Uzbekistan 

Soyibjon S. Bozorov

1Laboratory of Proteins and Peptides Chemistry, Institute of Bioorganic chemistry, Academy of Sciences of Uzbekistan, 83, M. Ulughbek Str., Tashkent 100125, Uzbekistan  akmal84a@gmail.com 

2Laboratory of Physical and Chemical Methods of Research, Center for Advanced Technologies of Ministry of Innovative Development of Uzbekistan, 3A, Talabalar shaharchasi, Tashkent 100125, Uzbekistan

Uchqun J. Ishimov

1Laboratory of Proteins and Peptides Chemistry, Institute of Bioorganic chemistry, Academy of Sciences of Uzbekistan, 83, M. Ulughbek Str., Tashkent 100125, Uzbekistan

Nodir Sh. Berdiev

1Laboratory of Proteins and Peptides Chemistry, Institute of Bioorganic chemistry, Academy of Sciences of Uzbekistan, 83, M. Ulughbek Str., Tashkent 100125, Uzbekistan 

Nadjiya N. Abrekova

1Laboratory of Proteins and Peptides Chemistry, Institute of Bioorganic chemistry, Academy of Sciences of Uzbekistan, 83, M. Ulughbek Str., Tashkent 100125, Uzbekistan

Muydinjon M. Muminov

3Andijan Experimental Exhibition Area Functioning at the Disposal of the scientific and Practical Centre for Implementation of Innovative Projects, Ministry of Innovative Development of Uzbekistan, Bobur massif, Andijan Region, 170800, Uzbekistan

Akmal M. Asrorov

1Laboratory of Proteins and Peptides Chemistry, Institute of Bioorganic chemistry, Academy of Sciences of Uzbekistan, 83, M. Ulughbek Str., Tashkent 100125, Uzbekistan

4State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China 

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Published

2020-06-30