One of the first modernization projects was initiated by a private railroad company, Zolotoe Zveno OJSC, which was incorporated on June 3, 1992, for construction and operation of the Kamyshovaya-Hunchun border crossing.
This company constructed the road simultaneously with Zolotoe Zveno.
As objects of study three apple varieties were selected--Zolotoe Letnee, Spartak, Kutuzovets from the collection of the State Budgetary Institution of the Samara Region "Research Institute of Horticulture and Medicinal Plants" Zhigulevskie Sady"; summer apple varieties Zolotoe Letnee and Vozrozhdenie grown in the Samara Region at various stages of ripeness.
The results of studies of the technological properties of Zolotoe Letnee, Vozrozhdenie apple varieties at different stages of ripeness are presented in Table 3.
Leaders in the content of phenolic compounds for the year of 2011 are the pulp of Kutuzovets apple variety, juice of Zolotoe and Spartak varieties (respectively 354, 282, 147 mg of gallic acid/100 g of raw fruit), for the year of 2012 the leading group includes the juice and pulp of Zolotoe apple variety.
Considering the data in Table 2 on the content of phenolic compounds, the following can be observed--the lowest content of these compounds is observed in unripe fruit of Zolotoe Letnee apples variety (157 and 558 mg of gallic acid/100 g of raw fruit ), then when the fruits are at the stage of ripeness, these compounds are accumulated (630 and 832 mg of gallic acid / 100 g of raw fruit).
The total flavonoids content in the varieties changes like the total content of phenolic compounds, with the only difference being that unripe and overripe fruit both show equally low levels of these substances--110 mg and 108 mg of catechine/ 100 g of raw fruit in the juice, 117 and 112 mg of catechine/ 100 g of raw fruit in the pulp of Zolotoe Letnee apple variety, respectively.