PROGNOSTICATION OF STORAGE TERMS FOR PASTEURIZED SAUSAGES WITH ACTIVE PACKAGE ELEMENTS

The work is devoted to optimization modeling of an influence of pasteurization with oxygen absorbers on spoilage processes of lipids of boiled sausage products. According to the results, the influence on changes of peroxide and acid numbers of lipids of small sausages, pasteurized at presence of an oxygen absorber, has been mathematically prognosticated. At mathematical modeling, mathematic packages MathCad and «Data analysis» (ЕТ) MSExcel were used. The experiment was planned according to the plan of full factorial experiment. The dependence as to the influence of the recipe composition of sausage products at their storage on peroxide and acid number values has been revealed. The conducted modeling allows to state the adequacy of obtained regressive equations. The obtained empirical dependencies allow to prognosticate a storage term of boiled sausages products, pasteurized with elements of active package at using protecting barrier multi-layer polymeric materials. The optimization modeling was conducted by structuring a mathematical model as an analytic expression that reflects the connection of factor signs with a parametric index. The obtained response functions are adequate and have a high correspondence to real experimental data. Storage terms were substantiated for small sausages, which recipe included beef, pork, poultry meat and also food emulsions, based on animal proteins. The process of repeated pasteurization was conducted at temperature 85–90 °С during 15–20 minutes

ESTIMATION OF OXIDATIVE STABILITY OF THE LIPID COMPLEX OF CREAMY-SHAKEN CANDIES WITH CHIA SEEDS AT STORAGE

One of ways of developing the confectionary industry is a search for raw material resources with a high content of nutrients, useful for the human organism. A promising type of such raw materials is non-traditional oil seeds, especially chia seeds. The aim of the study was to estimate the oxidative stability of the lipid complex of creamy-shaken candies with chia seeds at storage. It is noted, that lipase of chia seeds doesn’t manifest activity in an acid medium. That is why chia seeds introduction to creamy-shaken candies (with рН<6,0) doesn’t accelerate hydrolytic disintegration of their lipid component at storage. A type of jelly-former, used at candy production (agar-agar, pectin, modified starch), doesn’t influence the accumulation dynamics of free fatty acids in candies. It is noted, that the lipid component of creamy-shaken candies, produced with agar-agar and pectin, is characterized with the equal dynamics of a peroxide value. The accumulation of peroxide compounds in starch products takes place slower. It has been established, that despite the high content of polyunsaturated fatty acids, the lipid component of candies with chia seeds comparing with control is characterized by less inclination to oxidation. It is noted, that at the 30th day of storage relative changes of peroxide value indices of products with supplements are 1.00 and 0.81 against 1.85 and 1.49 in control samples on agar-agar (pectin) and starch respectively. The braking effect of chia seeds on oxidizing processes is conditioned by the high content of tocopherols and phenol compounds (quercetin, coffee, chlorogenic acids, rutin, polyphenol compounds) with antioxidant properties in them. It has been established, that during the studied storage term products didn’t gain a rancid smack, testifying to the accumulation of secondary oxidation processes. The structure and color of the studied samples of candies didn’t also change. That is during the normative storage term (60 days) creamy-shaken candies with chia seeds correspond to normative requirements by organoleptic parameters and quality ones of the lipid complex.

Modelling the effects of permeability, groundwater flow and water table depth on landscape evolution

&lt;p&gt;The role of groundwater flow in determining overland flow, drainage density and landscape evolution has long been debated. Landscape models often only address groundwater as a simplified storage term and do not explicitly include lateral groundwater flow, although recently some model codes have started to include lateral flow. However, the role of groundwater flow on landscape evolution has not been explored systematically to my knowledge. Here I present a new numerical and analytical model that combines groundwater flow, saturation overland flow, hillslope diffusion and stream erosion. A number of model experiments were run with different values of transmissivity and groundwater recharge. The model results demonstrate that transmissivity, groundwater flow and the depth of the watertable strongly govern overland flow, the incision of stream channels and erosion rates. The results imply that the permeability and transmissivity of the subsurface are important parameters for explaining and modelling landscape evolution. &amp;#160;&lt;/p&gt;

Breeding for obtaining apple (Malus domestica Borkh) immune cultivars

The author presents the main principles of creating apple immune cultivars by means of the directed hybridization with using oligogenic donors, the immunity being conditioned by the parasite usual incapacity of penetrating into a plant and infecting under the most favourable conditions. The immunity is determined by one or several main genes (oligo-genes). The scab harmfulness was analysed. That makes obtaining immune and high resistant apple cvs the major direc-tion of this crop breeding at the Institute of Horticulture (NAAN of Ukraine). Those varieties would decrease or exclude at all the chemical methods of the scab control. The immune cultivars are presented which were entered into the State Register of Plant Varieties Suitable for Dissemination in Ukraine in 2006, namely: Edera, Garant, Amulet, Skifske Zoloto, Perlyna Kyieva and the new cvs that were entered into the above mentioned register for the latest five years or are planned to be, including the summer varieties Malusha, Palanka, Nastia, the winter ones Todes, Dmiana, Solomiia, Dozhnytsia. They are all favourable for the intensive horticulture, nearly all powdery mildew resistant, combine harmo-nius taste and aroma, have attractive fruits appearance and the winter cultivars are characterized by the long storage term. It is the winter cv Dmiana that requires especial attention. It differs significantly from existing varieties owing to unique taste qualities which may be compared with the best grape vine dessert cultivars. Besides ‘Dmiana’ is scab im-mune and not affectioned by powder mildew. The trees have not a large compact crown, are winter-hardy, early ripening. They begin fruit-bearing in the 2nd year af-ter planting with annual planting trees almost on all the vegetative rootstocks even without a crown. They increase rap-idly marketable yield but are susceptible to the fruits overloading and their diminishing in size. The fruits are middle (130-185 g), orbicular – conic, green – yellow with crimson – red erubesccence nearly on the whole surface. The pulp has aroma, very dense and juicy up to the storage end. The creation of new fruit crops cvs is complicated multi-year labour which must not be the acquisition of only breeders. To this labour other scientists must be drawn at different stages because the final task of the breeding work is a versatile study of a new variety and offering recommendations to future producers concerning the peculiarities and application.

MARKETING STUDIES OF CONSUMPTION PREFERENCES AT DEVELOPING DIETARY PRODUCTS

Results of marketing studies of consumption motivations and preferences at choosing bread for special dietary consumption are presented. It has been established, that 18 % of questioned give advantage to bread with a decreased amount of carbohydrates; 17 % of respondents consume bread without gluten; 13 % give preference to products, including nutrients; 10 % by iodine-containing bread; 7 % and 6 % of questioned give preference to bread with a content of soya and entersorbents. It has been established, that bread with a content of carotene and lecithin is not widely demanded among respondents as 3 % for each one. Studies of % of preferences by flour types in the bread composition allowed to make conclusions that 19 and 17 % of respondents give preference to corn and buckwheat flour due to a higher content of healthy substances, it is also an important advantage that these flour types don’t contain cellulose complexes, present in the composition of wheat and barley flour, preferred by 14 and 11 % of questioned, respectively. It has been established by the experimental way, that 20 % of questioned persons feel a lack of bread with an increased content of protein at the market. 15, 12 and 10 % of respondents want widening the assortment of bread with an increased content of macroelements, vitamins and microelements. 13 and 10 % of questioned feel a lack at the market in such physiological-functional ingredients as polyunsaturated fatty acids and products of gluten-free flour. 8 % of respondents want to see in the retail network products with a content of dietary fiber and antioxidants. 9 % feel a lack of bread with a content of probiotics, 3 % of oligosaccharides. Based on the obtained results, there have been determined consumption advantages: a modern consumer gives preference to products with the improved content, usual organoleptic parameters, long storage term, low price. He/she is guided by the following criteria at buying bread: food value, caloric value, prophylactic properties.

RESEARCH OF QUALITY INDICATORS OF PROTEIN-FAT MIXTURE FROM FLAX AND SESAME SEEDS FOR NUTRITION OF ATHLETES

The aim of the research is to determine the microbiological stability of a protein-fat mixture of flax and sesame seeds that allows to correct its storage life. A protein-fat mixture has a high content of irreplaceable amino acids ВСАА and polyunsaturated fatty acids of w-3group, so it may be positioned as a component of nutrition for athletes. Flax and sesame seeds, cultivated in Ukraine, were used as research materials. The product was created, based on comminuted flax and sesame seeds in ratio 1:1. There were determined organoleptic (outlook, taste, smell, color) and physical-chemical (mass share of moisture, ash, protein, fat, acidic, peroxide, anisidine number) parameters of the product. There was determined the microbiological stability of the protein-fat mixture of the increased food value for athletes nutrition after 6 months. It has been proved, that as opposite to the control sample, the protein-fat mixture of the developed composition manifests its microbiological stability by the following parameters: content of mesophilic aerobic and facultative anaerobic microorganisms, molds, yeast, bacteria of the colon bacillus group and pathogenic microorganisms. The control sample that is comminuted flax seeds doesn’t manifest at the end of the storage term any correspondence of microbiological parameters by the content of mesophilic aerobic and facultative anaerobic microorganisms, molds, and bacteria of the colon bacillus group. This regularity is explained by the presence of lignans, sesamol and sesamoline, with preservative properties in the developed product. The obtained data may be used for reasoning recipes of products, based on the protein-fat mixture and correction of the food supplements ratio in them.

DECREASE OF REPEATED CONTAMINATION OF PACKED DELI-CIOUS MEAT PRODUCTS

The study considers a problem of repeated contamination of delicious products, ready for consumption. The aim of the work is to study the repeated thermal processing of a ready vacuum-packed whole-muscular meat product for inhibiting a surface microbiota. Today it is urgent for the meat industry, because it influences safety and quality, and also limits a storage term of a product. After bringing a meat product to culinary readiness by thermal processing, it has an unessential amount of microbiota. Microorganisms, including pathogenic and conventionally pathogenic ones, fall on a product after its cooking at cutting, preparation to package and at the package stage itself. Microbiological contamination of a ready meat product results in fast spoilage and is a serious problem for producers, because the microbiota growth shortens its storage life. In its turn, it results in a refuse of a consumer to buy this product and great economic losses for producers. The study is directed on a possibility of solving a problem of contamination of a whole-muscular delicious meat product. The solution is in package of a ready product under vacuum and short-term heating at a high temperature. The work is devoted to the complex study of an influence of repeated pasteurization on safety and quality of a product. There was studied an influence of the repeated thermal processing (post-pasteurization) on microbiological, physical-chemical and also organoleptic parameters of a delicious meat product. The special attention is paid to an influence of post-pasteurization regimes on a microbiological condition of studied samples. Studies of a total amount of microbiota and also the presence of sanitary-representative microorganisms were conducted. It has been proven, that the use of post-pasteurization essentially inhibits a number of microorganisms, and also doesn’t influence physical-chemical parameters outlook of a product and organoleptic characteristics. Based on studying an influence of post-pasteurization, it has been established, that inhibition of a microbiota essentially influences safety and prolongs the storage term of a product.

DEVELOPMENT OF NEW METHOD OF PRODUCTION OF HEALTHFUL COTTAGE COTTAGE CHEESE DESSERTS WITH USING VEGETABLE ADDITIVES IN THE FORM OF CRYOPASTES AND EXTRACTS

The aim of the work is the development of the new production method of healthful cottage cheese desserts with the record content of BAS of the prolonged storage term, based on sour-milk cheese in the nanosize form, using two types of vegetable additives as fruit-vegetable cryopastes and extracts. The new method includes BAS improvers, structure creators, coloring agents of fruit-vegetable fine-dyspersated vegetable additives of fruits and vegetables in the nanopaste form. At the same time vegetable additives as extracts of natural spices are used in the composition of desserts for prolonging the storage term of cottage cheese desserts and giving healthful properties to products. There is used and developed the new method of making healthful cottage cheese desserts, based on sour-milk cheese without artificial food additives with the record content of BAS – phytocomponents with using fruit-vegetable fine-dyspersated cryoadditives that are a source of BAS, structure creators, coloring agents and with using extracts of natural spices. It is offered to use two types of vegetable additives as an innovation at producing cottage cheese desserts. The first type of additives – cryopastes of fruit-vegetable raw materials: carotene-containing vegetables (pumpkin, apricot, sea buckthorn), chlorophyll-containing ones (spinach), lemons with zest and apples. Comparing with initial raw materials, the BAS content of fruit-vegetable cryoadditives (especially, β-carotene, chlorophyll, L-ascorbic acid, soluble pectin) is higher in 2,5…3,5 times. The use of fruit-vegetable cryoadditives at producing cottage cheese desserts gives a possibility to exclude food admixtures and synthetic additives. Introduction of the second type of vegetable additives as extracts of natural spices (cardamom and coriander, balm, lemon zest) in recipes of cottage cheese desserts favors the increase of their storage term in 2 times (comparing with an analogue). Such increase is connected with the high content of natural preservatives, detoxicants and substances with the bactericidal, bacteriostatic effect (aromatic, phenol compounds, tanning substances) in the aforesaid natural spices’ composition. The new method of producing healthful cottage cheese desserts differs from traditional ones by the fact that it includes mechanic destruction of cheese grain in the nanosize easily assimilated form. Fruit-vegetable cryoadditives are used as an innovation, as a source of BAS, natural thickeners and coloring agents and also extracts of natural spices for prolonging the storage term. There are developed the recipes of three types of healthful cottage cheese desserts with cryoadditives of carotene-containing, chlorophyll-containing fruit-vegetable raw materials, and also citruses, apples and ginger. New desserts are in the easily-assimilated nanosize form, differ by the record content of natural BAS of fruits and vegetables. They exceed known world analogues by their chemical composition.

DEVELOPMENT OF TECHNOLOGICAL SOUR-MILK DESSERTS ENRICHED WITH BIFIDOBACTERIA

The work is devoted to the development of the technology of fermented sour-milk desserts, enriched with bifidobacteria and biologically active and physiologically valuable substances of fruit-berry raw materials. Bifidobacteria regulate the quality and quantity composition of the normal intestinal microfllora that is an important factor of organism protection from different intestinal infections. The healthy effect is mainly conditioned by biologically valuable properties of specially selected consortiums of lacto- and bifidobacteria, more stable for the effect of inhibitors and unfavorable environmental conditions. At the joint use of selected consortiums of strains of bifido- and lactobacteria, the number of viable cells of bifidobacteria increases in 3-4 times, the antagonistic activity increases comparing with using separate strains of microorganisms. The use of fructose and lactulose as a biostimulating component of sour-milk desserts raises the activity, growth and development of bifidobacteria. For stabilizing the structure of sour-milk clots, there were used hydrocalloids, such as pectin and starch that favors the increase of the number of viable cells of bifidobacteria, provides the necessary viscosity and certain humidity, prevents stratification at using fruit-berry prebiotics. The optimal storage term of sour-milk desserts at temperature (3±1) оС is no more than 15 days