Nutritional value of vegetable Amaranthus tricolor L. seedlings grown in Moscow region

Iskren Georgiev Sergiev,Valentina Karlovna Gins,Desislava Aleksandrova Todorova,Ekaterina Muratovna Gins,Svetlana Mikhailovna Motyleva,Evgeny Aleksandrovich Moskalev

doi:10.22363/2312-797x-2019-14-3-225-238

Abstract

The use of amperometric express method made it possible to measure quickly and evaluate content of waterand alcohol-soluble antioxidants in extracts from Amaranthus tricolor L. plants. Accumulation of low molecular weight antioxidants: ascorbic acid, beta-cyanine (amaranthine) and the total content of antioxidants in various organs of Valentina amaranth seedlings were studied. The maximum amount of low molecular weight antioxidants accumulates in leaves, compared with roots and stems of seedlings grown in open and protected ground. In open ground conditions, amaranth leaves and stems have 1.5-fold and 2-fold increased level of ascorbic acid than seedlings grown in protected ground. But the total content of water-soluble antioxidants in leaves and roots of seedlings is lower compared to seedlings of protected ground. Minimum amount of antioxidants was found in alcohol extracts of stems and roots in open ground, while the total content of antioxidants in stems and roots was 1.6 fold higher in seedlings grown in protected soil. The content of amaranthine is comparable in the studied organs of amaranth seedlings of both cultivation variants. The data obtained allow to recommend use of leaves and stems of amaranth seedlings grown in open and protected ground (early spring and autumn), as a preventive antioxidant dietary product.

Highlights

In hot and humid regions of the world, edible species of leafy amaranths are considered to be popular vegetable crops: A. tricolor, A. blitum, A. dubius, A. cruentus and A
Analysis of morphometric parameters of plant before cutting revealed that amaranth seedlings grown in sheltered soil had significantly higher morphometric indicators compared to seedlings grown in open ground
Study of structure of seedlings' crop showed that aerial mass of seedlings grown in open ground have 52 % of leaves, 35 % of stems, while young plants in protected ground form 42 % of leaves and 44 % of stems

Summary

Introduction

In hot and humid regions of the world, edible species of leafy amaranths (genus Amaranthus) are considered to be popular vegetable crops: A. tricolor, A. blitum, A. dubius, A. cruentus and A. In a number of countries there is a shortage of animal protein, and leaves of amaranth vegetable species contain up to 20 % of a complete protein, balanced for essential amino acids. Population of these regions replenishes the lack of dietary protein by leaves of wild vegetable amaranth, growing seedlings and preparing various diets based on them [11]

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