Some Aspects of Red Special Wines

Due to increasing environmental radionuclide background, the scientists and specialists constantly face the problem of developing technologies for producing plant-based, therapeutic-purpose foods and food supplements enriched with biologically active substances, which are characterized by high immunomodulating, radioprotective and antioxidant activity. From such therapeutic-purpose foods and food supplements, of particular importance are the beverages because their improved composition, sensory and liquid consistency provide high availability and increased therapeutic capacity.


Introduction
Natural and special wines form the great part of the export potential of Georgia. The fact that according to figures on exports of wine and alcoholic beverages only for the first nine months of 2017, Georgia exported 52.7 million bottles (0,75 l) of wine.
According to the National Wine Agency, wine exports have grown up on 63% in comparison with corresponding period last year [1,2]. It is also noteworthy that since the 80s of the last centuries, poor-quality and expensive sprays and brought to our country have caused significant damage to the indigenous and alien grape varieties. Georgian farmers were forced to switch partly to growing of nontreated and hybrid grape varieties, because they do not require expensive and imported from outside sprays, and besides, hybrids and clones are easy to grow, and different types of fungi and other diseases are no big deal for them. Today, wineries cannot apply even industrial varieties of colored grapes such as Aladasturi, Dzelshavi, Mgaloblishvili and Black Pinoa [3,4].
In view of the foregoing, it reasonable and relevant to develop the innovative technologies for producing natural and special wines from common to western Georgia Therefore reasonable and relevant to western Georgia-known less marketable local raw materials of colored grape industrial varieties and nontreated grape clones enriched with from biologically active substance enriched with innovative technology of special wines, which are characterized by high sensor, radioprotective and antioxidant activity therapeutic properties for preventing food-borne diseases [5][6][7]. The goal of the work is to develop special wine technology enriched with biologically active substances from the grape raw materials of grape varieties cultivated in the Imereti Viticulture and Winemaking Area, which is characterized by improved sensory indicators and increased therapeutic and preventive capacity. In addition, in this special wine technology, for the first time in Georgia, there will be used raw materials of the nontreated colored Zeibeli grape variety cultivated in the Baghdati Viticulture and Winemaking micro-zone, rosehip and grape-seed alcohol-wine extracts and small quantity of white honey for the purpose of increasing the flowers tonality.

Object of Study
Raw materials of "Otskhanuri Sapere" grape variety from the Imereti Viticulture-Winemaking subzone, particularly from the

Research Methods
When determining the physical-chemical indicators of grape raw materials, wine materials and finished special wine, we used the standard, universally accepted and modified organoleptic and physical-chemical methods, including chromato-massspectrometry, high-performance liquid and gas chromatography, spectrophotometry and fluorometry.

Results and Analysis
To implement this goal, the following objectives should be attained [9][10][11][12][13][14]: To study the mechanical composition of selected raw materials; b. To provide uvological evaluation of raw materials; c. To study the chemical composition and sensory characteristics of raw materials; i). To justify theoretically and experimentally the optimal composition of grapes raw material required for special wine ii). To develop rational technology of colored grape raw materials processing, alcoholic fermentation and ageing; iii). To study the influence of thermal conditioning regimes of the seeds and skins on the extraction of phenolic and dye compounds; iv). To develop the optimal technological regimes and approaches for the production of ingredients required for special wine: semi-fermented wine, condensed grape vacuum-must, and grape-seed and dog-rose extracts; v). To provide quantitative and qualitative evaluation of biologically active substances of special wine; vi). To develop technological schemes for producing ingredients of special wine; vii). To develop technological schemes for special wine production; viii). To assess sensory characteristics and antioxidant activity of special wine.
ix). At the initial stage we studied and evaluated the mechanical, physical, chemical and sensory characteristics of the selected grape raw materials.
The grapes are the main raw material for wine production, and we have identified the mechanical composition of the bunch in compliance with the requirements suggested by Prostoserdov.
( Table 1) We have carried out studies and evaluation of the chemical composition and variety flavor of selected grape raw materials (Table 2). Studies show that the value of sugar-acid ratio affects numerous characteristics of wine, in particular the higher is this ratio, the better is the quality of special wine. Along with the selection of high-quality raw materials in the production of red special wines, the fermenting and fermentation processes have the main function in the formation of a sensory bunch [15,16].    V. During the fermentation of the seeds and skins, we raised the sugar content up to 27% by adding the vacuum-must and honey, due to which terpenic compounds were increased by 0.7-1.2 %, and esters by 24-27%.

VI.
We have established that after tye 6-day extractionfermentation at a temperature of 27 0 C, the seeds and skins are subject to heat treatment at a temperature of 54 0 C, and hot pressing, which significantly increases separation of phenolic and dye compounds.

VII.
Adding of the grape-seed and dog-rose concentrates and heat-treated grape-seed (5 g/dal) and oak shavings (5 g/dal) significantly improves the rancio tones and sensory bunch.

Monomeric forms 2270
Polymeric forms 1150 Tasting evaluation, scores 9,3 Table 3 shows the main fermentation temperature, the duration of maximum extraction of anthocyanins and the density of the fermented mass. Table 4 contains the physical, chemical and sensory characteristics of the special wine after the 18-month aging.
In all five samples, the content of raw materials of Zeibeli grape variety varied between 10-20%, while the amount of raw materials Aladasturi and Otskhanuri Sapere grape varieties -between 20-50%. Aladasturi and Otskhanuri Sapere grape varieties were blended in the proportion 36:48:16 (percentage ratio). As shown from the table, the wine produced has a high sensitivity rate (9,7 cents), which is the result of the composite effects of the selected raw materials of the selected raw materials, the use of ingredients and the technological processes of individual technologies.

Conclusion
A. It has been experimentally determined that the grape picking should be done when the concentration of the sugar content in the grapes is not less than 23-24g/100 cm 3 and titrated acidity is 6-8 g/dm 3 . And pressing of grapes in a rolling grape stalk separator enriches the seeds and skins with the phenolic complexes of stalk.
B. It has been established that colored grape raw materials blended with an optimal ratio of "Aladasturi", "Otskhanuri Sapere" and "Zeibeli 5455" grape varieties is promising for the production of high-quality special red wines with a distinctive variety flavor, and rich technological reserves of phenolic