Fruit growing
and viticulture of South Russia
Prichko Tatiana
Articles in journal: (total 43)
A special place among the fruit and berry crops growing in the south of Russia is rightfully occupied by sea buckthorn, which has exceptional nutritional properties. The fruits of the sea buckthorn are a valuable source of biologically active substances. Due to the presence of vitamins, phenolic compounds and organic acids, it is classified as adaptogenic agents with pronounced antioxidant and anti-stress properties that normalize metabolic processes in the human body. Sea buckthorn juice increases antioxidant properties, the level of testosterone and hemoglobin in the blood. The fruits of the sea buckthorn are most often consumed in processed form. In recent years, sea buckthorn juices and their blends are very popular among the population, according to statistics. For the processing of sea buckthorn fruits, it is necessary to use enzyme preparations to intensify technological processes that contribute to the destruction of polysaccharides and biotransformation of biologically active substances. The effect of the enzyme preparation Trenolin Opti DF on the chemical quality indicators of juice from sea buckthorn fruits was investigated in the laboratory of storage and processing of fruits and berries. The effect of enzymatic hydrolysis on the juice yield and the height of the plant sediment was established. As a result of the experiments, the yield of biologically active substances was determined: vitamins C, P, E, polyphenols. It was found that it increased by 8-17 % after enzymatic hydrolysis with Trenolin Opti DF. Data on the content of the fractional composition of sugars were obtained. It was found that the yield of glucose and sucrose increased by more than 10%. Sea buckthorn varieties Donchanka, Moryachka and Syurpriz Baltiki, growing in the south of Russia, were selected for laboratory research.
Fruits and berries are the important and irreplaceable component of the population balanced diet. In this article the results of studying of the chemical composition of currant berries are given, their high nutrition and biological value, and also antioxidant properties is noted. The difference of varieties and the level of accumulation of soluble solids, sugars (including glucose, fructose, sucrose), organic acids (citric, malic), vitamins, polyphenols and pectina substances are established. It is shown that currant berries in the food are the sources of functional ingredients, such as sugar, presented generally by fructose and glucose, vitamins C and P, anthocyans, pectin substances. The specific peculiarity of currant is high acidity of berries more than 2 %. The medicine and prophylactic properties of currant berries connect with the high level of pectin's accumulation more than 1 %: Podarok Leta variety 1,14%, Celechenskaya 1,03 %. The blackcurrant berries content the big quantity of vitamins, in comparison with red current, the contain of vitamin C more by 4 time on average, of vitamin P twice more. It is selected the blackcurrant varieties of Muravushka, Nara, Perun are the sources of high content of biologically active substances: the content of vitamin C in the berries more than 100 mg, 130 mg of vitamin P and 300 mg of anthocyans in 100 g of berries. Among the studied varieties of red currant on a complex of biochemical indicators the varieties of Dar Orla, Podarok Leta are interesting because they content more than 30 mg / 100 of vitamin C in berries and more than 85 mg / 100 of vitamin P
The article presents the results of studying the influence of some types of packaging materials used in conjunction with an ethylene absorber on ethylene production intensity of zucchini cv. Alexandria and tomatoes cv. Inkas during storage for 14 days at a temperature of 8 10 and air relative humidity of 903 %. The study was carried out using StePac Xtend bags, creating a modified atmosphere, and Inter Fresh ethylene absorbers (sachets); one sachet for ethylene absorption was placed in Xtend bags. It was found that when stored under these conditions the ethylene concentration in Xtend bags was 80% lower in case of zucchini and 1600 % lower in case of tomatoes than when using traditional bags, even despite the higher initial mass of produce in Xtend bags. In zucchini and tomatoes extracted from bags, the rate of ethylene production was also lower after storage in Xtend bags, than when using traditional bags: 111,1 % lower in case of zucchini and 211,5 % lower in case of tomatoes. Losses associated with microbiological spoilage were not observed during the experiment.
One of the ways to optimize the people`s nutrition is to increase in the share of fresh fruits in the diet as sources of natural biologically active substances. Promising raw materials with a unique composition of natural antioxidants are unabi fruits. Their quality depends on the chemical composition that determines the taste, nutritional value and therapeutic properties. Therefore, the aim of this research was to study the chemical composition of unabi fruits of 8 varieties and to reveal the possibility their use in the production. According to research carried out the varietal differences and accumulation limits were established: for the content of soluble solids (22,2-28,8 %) and sugars (including glucose, fructose, sucrose) and organic acids (0,4-0,9 %), vitamin C (209,6-386,0 mg/100 g), P-active substances (catechins 22,9-178,0 mg/100 g; leukoantocyans 15,6-36,5 mg/100 g, flavonols 9,2-15,6 mg/100 g), amino acids (181,4-487,1 mg/100 g) and macro-, microelements. Unabi sources varieties with a high content of biologically active substances were identified: according to the content of soluble dry substances and sugars Finik, Ulduz, Arzu; of acids Zogal, Ulduz, Ordubadi; of vitamin C Finik, Temryuk, Zogal; of vitamin P (catechins) Arzu, Ulduz; of leukanthocyanins Li-chiao, Ulduz; of amino acids Temryuk, Zogal, Finik; of mineral substances Zogal, Ulduz. It has been shown that unabi fruits are the sources of essential micronutrients, which allow us to use them in the technology of producing the canned foods with high nutritional qualities and therapeutic properties due to the high content of vitamins, a wide range of amino acids and minerals necessary, that is for good nutrition.
We studied the system of forming a productive seedling strawberry in the mother planting with the use of growth regulator gibberellin and humic fertilizer Gumi-20K, Gumi-20M, providing an increase of planting stock more than 2 times.