Determination of the Bacterial Community in Soils Associated with Rare Wild Leguminous Species Cicer Montbretii Jaub. amp%253B Spach and Lupinus albus L. in Strandzha Natural Park

The soil formation in Strandzha Mountain is influenced by the particular combination of the climate%252339%253Bs unique forest tree vegetation, the extraordinary variety of root and soil-forming rocks, the hilly low-mountainous relief with significant fragmentation, a densely located hydrographic network with short slopes and dominant exposures. The diversity of soil microorganisms is crucial for plant growth and development and it makes it possible to understand in detail the plant-microbial interactions. The objectives of this study were to determine soil bacteria associated with rare wild leguminous species Cicer montbretii Jaub. amp%253B Spach (Constantinople chickpeas) and Lupinus albus L. (white lupinus) in Strandzha National Park. A new locality of Cicer montbretii Jaub was marked nearby village of Brodilovo. L. albus was found in saline-alkaline soil (A1) and yellow earth podzolic soils (A2) around the village of Brodilovo and the Great Pazvlak area. C. montbretii was found to grow on cinnamon forest soils (B1) and siliceous red soil (B2). A study was conducted by physio-chemical analyses and by assessing 16S rDNA metagenomics technique used to generate a total of 126,837 reads from the samples. The most significant number of observed species 2249 was found in soils saline-alkaline soil (B1) soil. According to that result, the higher diversity indices were calculated in the also in B1 soil. The alpha%253B-diversity analysis reported yielded similar Shannon indices ranging from 8,322 in B2 to 9,337 in B1. The analyses revealed that B2 yellow earth podzolic soil, unique for Strandzha, has the largest composition with Proteobacteria 44%25 and the lowest in Actinobacteria 20%25. Opposite, in A1 saline-alkaline soil have the richest composition of Actinobacteria 52%25 and the poorest in Proteobacteria 23%25. C. montbretii was found in neutral A2 and B2 soils, while L. ablus prefer acidic A1 and B1 soils. The determination of the microbiological status of the soils associated with Constantinople chickpeas and white lupinus and the annual monitoring of the species in Strandzha Park will determine the methods for the most effective maintenance and storage outside their habitats

Attitudes of student nurses to work with children

Introduction: Nurses are an important resource for health systems and occupy a significant place in providing effective and quality health care. Meanwhile,the shortage of nurses, including pediatric, is a serious problem at national and international level. Therefore, the study of the attitudes of student nurses to work with children has important scientific and practical significance.Objective: To explore attitudes to work with children of students from second and fourth course, specialty „Nurse` at the Medical University - Varna. Material and Methods: Analysis of literature, documentary and questionnaire method. We tested the opinion of 54 students from the second year and 36 fourth year students of specialty „Nurse` at the Medical University - Varna through direct group anonymous survey. The survey was conducted in February and March 2016.Results: A significant part of the future nurses from the second and fourth course stand ready to work with children after graduation. Among second year students the highest proportion of those willing to work with a pediatrician is in the Diagnostic and consultative center. In contrast, most of their colleagues from the fourth course prefer to work in the Children‘s sector at Multispecialty Hospital for Active Treatment. Both groups of respondents cited as the main motive for work in the field of pediatrics is the love for children.Conclusion: The positive attitudes of future nurses to work with children are a guarantee for successful implementation of one of the priority activities of our modern health care - health care for children

Soil Contamination in Forest and Industrial Regions of Bulgaria

Based on systematic data from 1988 to 2015, the main sources of soil contamination in forest and industrial areas of Bulgaria were presented. The processes of soil acidification and eutrophication as well as accumulation of heavy metals in forest and industrial soils were analysed. The content of heavy metals in soils, pasture grasses and medicinal plants from two National Parks—Central Balkan and Pirin, as well as from two Natural Parks—Bulgarka and Strandzha was also reported. Data on heavy metals accumulation in leaves of tree species in some industrial areas of the country were presented as well. Soil and plant contamination with heavy metals were estimated according to the applied criteria of ICP Forests

Isolation and selection of sauerkraut lactic acid bacteria producing exopolysaccharides

Fermented plant-based foods, including sauerkraut, offer high nutritional and functional value. Their microflora is dominated by lactic acid bacteria which are a source of different substances with health- promoting benefits and diverse applications in the food industry. Production of exopolysaccharides (EPSs) by lactic acid bacteria attracts particular interest in the food industry due to their rheological properties. In the present study, we isolated 20 strains of lactic acid bacteria from traditional Bulgarian sauerkraut. The isolates were identified by 16S rDNA sequencing and were attributed to Lactiplantibacillus plantarum (75%) and Pediococcus pentosaceus (25%). All strains were screened for their ability to synthesize exopolysaccharides, and 6 of them proved positive. Since culture media composition and especially the carbon source is a critical factor influencing the yield of bacterial EPSs, the impact of various carbon sources on the EPSs synthesis by the selected producers was explored. The best results were obtained by using glucose and sucrose as sole carbon sources

Safety and efficacy of a feed additive consisting of Bacillus velezensis PTA‐6507, B. velezensis NRRL B‐50013 and B. velezensis NRRL B‐50104 (Enviva® PRO 202 GT) for turkeys for fattening (Danisco Animal Nutrition)

[EN]Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of the additive consisting of Bacillus amyloliquefaciens PTA-6507, B. amyloliquefaciens NRRL B-50013 and B. amyloliquefaciens NRRL B-50104 (trade name: Enviva® PRO 202 GT) for turkeys for fattening. The product under assessment is based on viable spores of three strains originally identified as B. amyloliquefaciens which, in the course of the current assessment, were reclassified as Bacillus velezensis. The bacterial species B. velezensis is considered suitable for the qualified presumption of safety (QPS) approach to safety assessment. The identity of the active agents was established. The active agents do not harbour acquired antimicrobial resistance genes and lack toxigenic potential and the capacity to produce aminoglycosides. Following the QPS approach, the three bacterial strains are presumed safe for the target species, consumers and the environment. Since no concerns are expected from the other components of the additive, Enviva® PRO 202 GT is also considered safe for the target species, consumers and the environment. Enviva® PRO 202 GT is non-irritant to skin and eyes and is not a dermal sensitiser. Due to the proteinaceous nature of the active agents, the additive should be considered a respiratory sensitiser. In a previous opinion, it was concluded that Enviva® PRO 202 GT has a potential to be efficacious as a zootechnical additive in chickens for fattening at the recommended level of 7.5 × 107 CFU/kg complete feed. It is considered that conclusions on efficacy of Enviva® PRO 202 GT in chickens for fattening can be extrapolated to turkeys for fattening. Therefore, the FEEDAP Panel concludes that Enviva® PRO 202 GT has the potential to be efficacious in turkeys for fattening at 7.5 × 107 CFU/kg complete feed.S

Safety of the fermentation product of Aspergillus oryzae NRRL 458 (Amaferm®) as a feed additive for dairy cows (Biozyme Inc.)

[EN] Amaferm® is a fermentation product produced by Aspergillus oryzae NRRL 458, containing alpha-amylase and cellulase enzyme activities, authorised for use as a feed additive for dairy cows. In 2016, the applicant requested for the renewal of the authorisation and the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) issued an opinion at that regard in 2020. In that opinion, the Panel could not confirm the previously drawn conclusions (EFSA, 2006) regarding the safety of the production strain, and consequently could not confirm the safety of the additive for the target species and consumers. In the current submission, the applicant provided supplementary information that allowed the Panel to conclude on the identity of the production strain, redefine the specifications of the additive, and finally to conclude on its safety. Therefore, the new data provided permit to conclude that Amaferm® complies with the conditions of the authorisation. However, the Panel noted that there is the need to change the specification and description of the cellulase and amylase units in the authorisation act. The data provided in the previous (EFSA FEEDAP Panel, 2020) and the current assessments support that Amaferm® remains safe under the approved conditions for target species, consumers and the environment. The additive is non-irritant to skin and eyes, or a dermal sensitiser but should be considered a potential respiratory sensitiser.SIThe Panel wishes to thank the following for the support provided to this scientific output (in alphabetical order of the last name): Working Group on Animal Nutrition and Working Group on Microbiology, Rosella Brozzi, Christina Cuomo and Jordi Tarres Call

Safety and efficacy of a feed additive consisting of lactic acid produced by Weizmannia coagulans (synonym Bacillus coagulans) DSM 32789 for all animal species except for fish (Jungbunzlauer SA)

©2022EuropeanFoodSafetyAuthority.EFSAJournalpublishedbyWiley-VCHGmbHonbehalfofEuropeanFoodSafetyAuthority.[EN] Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of lactic acid produced by a non-genetically modified strain of Weizmannia coagulans (synonym of Bacillus coagulans) (DSM 32789) for all animal species except for fish. The production strain qualifies for the QPS approach for safety assessment. Although uncertainty remains concerning the possible presence of viable cells and/or spores of the production strain in the final product, this does not raise safety concerns for the target species, humans and the environment. The lactic acid is safe at 50,000 mg/kg complete feed for functional ruminants and pigs and at 20,000 mg/kg feed for all the other animal species and categories except for pre-ruminants for which a safe level cannot be established. The corresponding safe levels in water for drinking would be 15,000 mg/L water for pigs and 8,000 mg/L for other non-ruminant species. Although no safe concentration of lactic acid in water for drinking for ruminants can be derived, the Panel considers that the use in water for drinking is safe in ruminants when the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. The use of the additive under assessment in animal nutrition is considered safe for the consumers and for the environment. It is considered corrosive to the skin, eyes and mucous membranes. Lactic acid is used in food as a preservative. It is reasonable to expect that the effect seen in food will be observed in feed when it is used at comparable concentrations and conditions. However, the FEEDAP Panel has reservations about its effectiveness as a preservative in complete feed with a moisture content of ≤ 12%.SIThe Panel wishes to acknowledge the contribution to this opinion of Martina Reitano, Joana Revez, the experts of the Microbiology and of the Animal Nutrition Working Groups of the FEEDAP Panel

Assessment of the efficacy of a feed additive consisting of Limosilactobacillus reuteri (formerly Lactobacillus reuteri) DSM 32203 for dogs (NBF LANES)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the efficacy of Limosilactobacillus reuteri (formerly Lactobacillus reuteri) DSM 32203 as a zootechnical additive for dogs. The additive is a preparation of viable cells of L. reuteri DSM 32203 and it has not been previously authorised as a feed additive in the European Union. The additive is intended for use in complete feed for dogs at a minimum use level of 6 x 10(9) colony forming units (CFU) per animal and day. In a previous opinion, the FEEDAP Panel could not conclude on the efficacy of L. reuteri DSM 32203 for dogs. The applicant has provided supplementary information to support the efficacy of the additive to dogs. Based on the data provided, the FEEDAP Panel concludes that L. reuteri DSM 32203 has the potential to improve faecal consistency by reducing the moisture content of stools from dogs receiving the additive at 1 x 10(10) CFU/kg feed. However, the Panel has some reservations on the effects in the moisture content of stools, which if maintained over time might cast doubts on the benefits on the long-term use of the additive since it could lead to constipation

Safety and efficacy of a feed additive consisting of Limosilactobacillus reuteri (formerly Lactobacillus reuteri) DSM 32264 as a feed additive for cats (NBF Lanes s.r.l.)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the efficacy of a product consisting of Limosilactobacillus reuteri (formerly Lactobacillus reuteri) DSM 32264 as a zootechnical additive for cats. The additive is a preparation of viable cells of L. reuteri DSM 32264 and it has not been previously authorised as a feed additive in the European Union. The additive is intended for use in complete feed for cats at a minimum inclusion level of 6 9 109 colony forming units (CFU) per animal and day. In a previous opinion, the FEEDAP Panel could not conclude on the efficacy of L. reuteri DSM 32264 for cats. The applicant has provided supplementary information to support the efficacy of the additive for cats. Based on the data provided, the FEEDAP Panel concluded that L. reuteri DSM 32264 has the potential to improve faecal consistency by reducing the moisture content of stools from cats receiving the additive at 1 9 1010 CFU/kg feed. However, the Panel had some reservations on the effects in the moisture content, which if maintained overtime, might cast doubts on the benefits on the long-term use of the additive since it could lead to constipation

Safety and efficacy of a feed additive consisting of l‐valine produced by Corynebacterium glutamicum CGMCC 7.366 for all animal species (Ningxia Eppen Biotech Co., Ltd.)

[EN] Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of the feed additive consisting of l-valine produced by fermentation using a non-genetically modified strain of Corynebacterium glutamicum (CGMCC 7.366). The additive is intended to be used in feed and water for drinking for all animal species and categories. The production strain is considered suitable for the qualified presumption of safety (QPS) approach to safety assessment. The FEEDAP Panel concludes that l-valine produced using C. glutamicum CGMCC 7.366 is safe for the target species when supplemented in appropriate amounts to the diet according to the nutritional needs of the target species. The FEEDAP Panel has concerns on the use of amino acids in water for drinking for hygienic reasons, and due to the risk of imbalances when administered simultaneously via feed. The use of l-valine produced using C. glutamicum CGMCC 7.366 in animal nutrition is considered safe for the consumer and for the environment. No conclusion could be drawn on the potential of l-valine produced using C. glutamicum CGMCC 7.366 to be toxic by inhalation, irritant to the skin or eyes, or a dermal sensitiser due to the lack of data. The additive l-valine produced by fermentation using C. glutamicum CGMCC 7.366 is regarded as an efficacious source of the essential amino acid l-valine for non-ruminant nutrition. For the supplemental l-valine to be as efficacious in ruminants as in non-ruminant species, it requires protection against degradation in the rumenSIThe Panel wishes to acknowledge the contribution of Jaume Galobart, Yolanda Garc ıa Cazorla and Lucilla Gregoretti to this opinio