The usage of a binder system for frozen berries in the manufacture of confectionery

The aim of the research was to create binding systems for confectionery using gelling agents. The possibility of using partially hydrolyzed liquid egg white (egg hydrolyzate) in the binding system of gelling agents (egg hydrolyzate - agar (EG-A), egg hydrolyzate - starch (EG-S)) was determined to obtain the required mechanical characteristics when creating coatings, ornaments or fillers in confectionery with whole berries or pieces of fruit. In this regard, a technology has been developed for the hydrolysis of liquid egg white in the presence of an acidic reagent. The best rheological characteristics of the gelling agent from egg white were obtained under the following hydrolysis conditions: egg white : 1% HCl ratio = 1:2, process temperature - 66°C, duration - 40 minutes, the pH of the egg hydrolyzate was 6.53, the amount of dry solids was 11.78%. The newly created systems with agar (E406, Germany), chemically modified food starch (E1442, Germany) and hydrolyzed egg white (egg hydrolyzate) allow to adjust the properties of the coating for quick-frozen berries used in semi-finished confectionaries or cakes. It is established that the coating for quick-frozen berries, which includes a system consisting of 1% E406 and 0.5% egg hydrolyzate, should be carried out in 2 stages. In the first stage, a 10-minute exposure of the coating, which has a tensile strength of 580 g cm-2 , allows to create a strong capsule around the berry, which prevents the processes of destruction from proceeding. The second stage is necessary to obtain a uniform surface coating of the semi-finished mix from the berries. In this case, the tensile strength of the coating should be 480 g cm-2 . The system created from the E1442 and egg hydrolyzate gelling agents was also used in 2 stages when making cakes, which were subsequently baked at 180 °C. The content of the binding system in the coating applied to the test substrate was 6.9–7.7%, the effective viscosity of the coating was 120–180 Pa s. The content of the binding system in the coating of the surface of the berries in the second stage was 5.2–6.3% with effective viscosity values of 50–90 Pa s. Semi-finished berry products and ready-made baked cakes, produced with developed binding systems, can be stored at -8 °C for 10 to 12 days. After refrigerated storage, the separated moisture was not observed in the test samples. The absence of the phenomenon of syneresis with the indicated proportions of the introduction of gelling agents in coating systems has been established

CLINICAL AND IMMUNOHISTOCHEMICAL STUDIES IN THE DIAGNOSIS OF UNDIFFERENTIATED CONNECTIVE TISSUE DYSPLASIA IN PATIENTS WITH CHOLELITHIASIS

There were examined 132 patients in the age of 29-77 years old. Morphological features of abnormal shape or position of gallbladder were detected at 26.9% of patients with undifferentiated connective tissue dysplasia, and this may contribute to the formation of gallstones

Возможности коррекции микробиоты ротоглотки и кишечника у детей природными средствами на основе экстрактов растений

The widespread use of antibacterial drugs for the treatment of respiratory diseases causes antimicrobial resistance in opportunistic microorganisms, which leads to the chronic forms of respiratory diseases and contributes to the risk of repeated respiratory infections. One of the new therapeutic solutions is the use of multicomponent water-soluble plant extracts. The goal of this study was to evaluate the antibacterial efficacy of the extracts of multicomponent herbal remedies versus the synthetic antiseptic for the treatment of the oropharyngeal and gut opportunistic microflora in children with chronic tonsillitis.In a retrospective study, we compared the effectiveness of the plant extract Tonzinal (experimental group, 100 patients) versus the Miramistin antiseptic agent (control group, 40 patients) for the treatment of chronic tonsillitis in children 5 to 15 years old using various treatment regimens.The oropharyngeal microbiocenosis was investigated by the bacteriological analysis of smears from the posterior wall of the pharynx and tonsils. Bacterial strains were isolated by inoculation on liquid agar media with the subsequent identification of Staphylococcus aureus, Streptococcus pyogenes, Candida spp., Moraxela cataralis, and Mycoplasma pneumonie according to the morphological and biochemical characteristics. For the bacteriological analysis of gut microbiocenosis, Staphylococcus aureus, Streptococcus spp., Candida spp., Klebsiella spp., Clostridiums spp., and Proteus spp. were isolated from the fecal filtrate and then identified by the same methods. The occurrence rate of microorganisms in patients of the experimental and control groups was compared before and after the 10-day course of therapy.A statistically significant decrease in the occurrence rate of Staphylococcus aureus (from 25% to 0%, p<0.01) and Candida spp. (from 18% to 0%, p<0.01) in the oropharynx of patients in the experimental group and from 20% to 7.5% and from 5% to 0% (p<0.05), respectively, in the control group was observed. A statistically significant decrease in the occurrence rate of Streptococcus pyogenes was only observed in the experimental group (from 30% to 0%, p<0.01). Treatment with Tonzinal or Miramistin did not lead to the statistically significant changes in the occurrence rate of opportunistic microorganisms in the gut microflora of the patients in both groups. Therefore, we have shown a higher antimicrobial efficacy of Tonzinal versus the Miramistin antiseptic for the treatment of the oropharyngeal opportunistic microorganisms in children with chronic tonsillitis.Широкое применение антибактериальных препаратов для лечения респираторных заболеваний формирует резистентность к антибиотикам у условно-патогенных микроорганизмов, что влечет за собой хронические формы респираторных заболеваний и способствует риску повторных респираторных инфекций. Одним из новых терапевтических решений может быть применение многокомпонентных фитопрепаратов в виде водорастворимых экстрактов. Цель данного исследования – оценить эффективность антибактериального действия экстрактов многокомпонентных фитопрепаратов на условно-патогенную микрофлору ротоглотки и  кишечника у детей с диагнозом «хронический тонзиллит» по  сравнению с синтетическим антисептиком.В ретроспективном исследовании мы провели сравнение фитопрепарата «Тонзинал» (опытная группа, 100 человек) с антисептическим средством «Мирамистин» (группа контроля, 40 человек), определяя эффективность различных схем лечения хронического тонзиллита у детей в возрасте от 5 до 15 лет. Микробиоценоз ротоглотки исследовали с помощью бактериологического анализа мазков с задней стенки глотки и миндалин. Штаммы микроорганизмов выделяли методом посева на жидкие агаризованные среды с последующей идентификацией Staphylococcus aureus, Streptococcus pyogenes, Candida spp., Moraxela cataralis, Mycoplasma pneumonie по морфологическим и биохимическим признакам. Для проведения бактериологического анализа микробиоценоза кишечника штаммы условно-патогенных микроорганизмов выделяли из копрофильтрата аналогичным способом и идентифицировали Staphylococcus aureus, Streptococcus spp., Candida spp., Klebsiella spp., Clostridiums spp., Proteus spp. Сравнивали частоту встречаемости микроорганизмов, имеющих показатели интенсивности обсемененности более 104  КОЕ/г, в опытной группе и группе контроля до начала лечения и после 10‑дневного курса терапии.После 10‑дневного курса терапии в  ротоглотке наблюдали статистически значимое снижение частоты встречаемости Staphylococcus aureus и Candida spp. в опытной группе с 25% до 0% и с 18% до 0% соответственно (p<0.01) и в группе контроля с 20% до 7.5% и с 5% до 0% соответственно (p<0.01). Частота встречаемости Streptococcus pyogenes статистически значимо снизилась только в опытной группе (с 30% до 0%, p<0.01). При исследовании кишечной микрофлоры статистически значимых изменений частоты встречаемости исследуемых бактерий в опытной группе и группе контроля после применения препаратов не выявлено. Таким образом, мы показали более высокую антимикробную эффективность «Тонзинала» в отношении условно-патогенных микроорганизмов ротоглотки по сравнению с антисептиком «Мирамистин» при хроническом тонзиллите у детей

Gata4 Is Required for Formation of the Genital Ridge in Mice

In mammals, both testis and ovary arise from a sexually undifferentiated precursor, the genital ridge, which first appears during mid-gestation as a thickening of the coelomic epithelium on the ventromedial surface of the mesonephros. At least four genes (Lhx9, Sf1, Wt1, and Emx2) have been demonstrated to be required for subsequent growth and maintenance of the genital ridge. However, no gene has been shown to be required for the initial thickening of the coelomic epithelium during genital ridge formation. We report that the transcription factor GATA4 is expressed in the coelomic epithelium of the genital ridge, progressing in an anterior-to-posterior (A-P) direction, immediately preceding an A-P wave of epithelial thickening. Mouse embryos conditionally deficient in Gata4 show no signs of gonadal initiation, as their coelomic epithelium remains a morphologically undifferentiated monolayer. The failure of genital ridge formation in Gata4-deficient embryos is corroborated by the absence of the early gonadal markers LHX9 and SF1. Our data indicate that GATA4 is required to initiate formation of the genital ridge in both XX and XY fetuses, prior to its previously reported role in testicular differentiation of the XY gonadHoward Hughes Medical Institut

Mammalian sex determination—insights from humans and mice

Disorders of sex development (DSD) are congenital conditions in which the development of chromosomal, gonadal, or anatomical sex is atypical. Many of the genes required for gonad development have been identified by analysis of DSD patients. However, the use of knockout and transgenic mouse strains have contributed enormously to the study of gonad gene function and interactions within the development network. Although the genetic basis of mammalian sex determination and differentiation has advanced considerably in recent years, a majority of 46,XY gonadal dysgenesis patients still cannot be provided with an accurate diagnosis. Some of these unexplained DSD cases may be due to mutations in novel DSD genes or genomic rearrangements affecting regulatory regions that lead to atypical gene expression. Here, we review our current knowledge of mammalian sex determination drawing on insights from human DSD patients and mouse models

THE INVESTIGATION OF STABILITY OF ELASTIC PLATES AND SHELLS WITH THE HELP OF FE MODELING

The features of the finite element modeling and solution of problems of stability of elastic plates, closed spherical and spheroidal shells, shallow and nonshallow spherical shell segments in linear and geometrically nonlinear formulations, with the influence of small imperfections of the loadin

О ЯВЛЕНИИ ПОТЕРИ УСТОЙЧИВОСТИ ПРОДОЛЬНО СЖАТОЙ КРУГОВОЙ ЦИЛИНДРИЧЕСКОЙ ОБОЛОЧКИ. ЧАСТЬ 1: О ПОСЛЕКРИТИЧЕСКОМ РАВНОВЕСИИ ОБОЛОЧКИ

Для круговой упругой кинематически продольно сжатой цилиндрической  оболочки на ос-нове анализа данных экспериментов рассматриваются особенности формирования начального послекри-тического равновесия, образования и развития ромбо-треугольных вмятин в процессе хлопка по нагруз-ке, а также характерные свойства кусочно-гладких кривых послехлопковых равновесий. Дано определе-ние нагрузки резкого уменьшения энергетического барьера – максвелловой силы и описаны способы ее вычисления. Численные результаты сравниваются с экспериментальными

Classical Solution and Edge Effect in the Problem of Stability of an Axially Compressed Cylindrical Shell

The classical solution for critical stresses in the problem of stability of a circular longitudinally compressed cylindrical shell consists of two terms, reflecting the ability of the shell to resist buckling due to bending and membrane deformations. However, with usual boundary conditions the classical solution appears only with the absence of the Poisson expansion of a shell. With a non-zero Poisson's ratio, an axisymmetric edge effect presents. It reduces the critical load and causes the initial arrangement of its own forms to change as the load increases