Abstract
With the aim of studying the influence of genotype and climatic conditions on the content of β-glucans, fat and protein in grain, oat samples were grown in the Krasnoyarsk territory region and the Republic of Khakassia for three years. The object was 1 naked and 2 husked samples of oats of Krasnoyarsk selection. The content of β-glucans and fat was measured on an automatic grain analyzer Infratec Analyzer 1241 using 50 ml cuvette. In parallel, standard methods were used to measure other chemical and physical characteristics of oat grain: protein content in the grain, its filminess, weight of 1000 grains. It was found that the husked samples formed a grain with a content of β-glucan in it about 3% and naked over 4%, while a noticeable advantage of the naked sample compared with the husked in the content of protein and fat in the grain was found. Cultivation of different oat samples in two geographical areas of Eastern Siberia for three years showed insignificant positive impact of climatic conditions of Khakassia on the content of β-glucans in grain, its size and filthiness and negative impact on fat and protein content. Comparison of the content of β-glucans and fat in oat grain of three varieties from two geographical points revealed a significant effect of the genotype (63.6 and 66.6%, respectively) and a slight influence of the point of cultivation, as well as the interaction of the genotype×point. The existence of strong negative links between the weight of 1000 grains and the content of β-glucans, fat or protein in the grain, as well as strong positive reliable links between the content of β-glucans and fat in the grain.
Highlights
Продукты, полученные из зерна овса, обладая ценными питательными качествами, широко используются на корм животным и в питании человека [1,2,3]
With the aim of studying the influence of genotype and climatic conditions on the content of β-glucans, fat and protein in grain, oat samples were grown in the Krasnoyarsk territory region and the Republic of Khakassia for three years
It was found that the husked samples formed a grain with a content of β-glucan in it about 3% and naked over 4%, while a noticeable advantage of the naked sample compared with the husked in the content of protein and fat in the grain was found
Summary
В качестве объектов исследования использовали 3 сорта овса красноярской селекции: Тубинский, Саян и Голец (табл. 1). Почва первого опытного участка представлена черноземом обыкновенным маломощным, который характеризуется агрохимическими показателями: содержание гумуса (по Тюрину) – 6.00%, реакция почвенного раствора слабокислая (рН – 6.2). Почва второго опытного участка представляла собой чернозем обыкновенный, с содержанием гумуса 3.8%, реакция почвенного раствора близка к нейтральной (рН – 7.3). Погодные условия в Красноярской лесостепи в годы исследования были контрастными: 2015 г. – засушливый (ГТК – 0.95); 2016 и 2017 гг. – увлажненные (ГТК – 1.39 и 1.44), а 2017 г. Компания ООО EIRA (официальный представитель FOSS Analytical Ltd. в Латвии) разработала калибровочную модель для определения β-глюканов в зерне. Данные из 150 образцов зерна зерновых культур, проанализированные методами AOAC 995.16 и ICC No 168 для β-глюкана (Mеgasyme), были использованы для разработки модели калибровки. Достоверность результатов оценивали по t-критерию Стьюдента при р≤0.05
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