The effect of the types of processing on the reducing of nitrates content in beet

The results of received researches showed that the content of nitrates in beet on personal common plots in the suburbs of Krasnoyarsk exceed maxi-mum concentration limit. In beets tubers nitrates are collected not equally: the top and the tip of their root contain more, than in the middle part and the core. Ecological and soil conditions create prereq-uisites for the accumulation of nitrates: sufficient moistening and low temperatures; the lack of illu-mination and high temperatures. The purpose of the study was the research of the influence of types of processing of the beet grown on common per-sonal garden and garden plots of the vicinities of Krasnoyarsk on the decrease in the content of ni-trates. As technological solution of "nitrate" problem it is possible to consider local use of nitric fertilizers under cultures. Harvesting of beet in the second half of a day is considered to be optimal as in the late afternoon the weakening of inflow of mineral nitrogen from roots to elevated part of beet is ob-served. Preliminary processing of beet tubers pro-motes the decrease in the content of nitrates by 32-44 %. Heat treatment of beet is the most pro-ductive for the decrease in nitrates content. At its use in beet of the grade Bordeaux the content of nitrates decreases below maximum concentration limit at the temperature - 80°C; exposure time - 45 minutes; hydration level - 1:4. In the grade beet Cylindrical the content of nitrates below maximum concentration limit decreases at the temperature - 100°C; exposure time 60 - minutes; hydration level - 1:2.