Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca最新文献_第5页

Isolated Microorganisms for Bioconversion of Biodiesel-Derived Glycerol Into 1,3-Propanediol 生物柴油衍生甘油转化为1,3-丙二醇的分离微生物

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2017-11-20 DOI: 10.15835/BUASVMCN-FST:0014

L. Mitrea, L. Călinoiu, Gabriela Precup, M. Bindea, B. Rusu, M. Trif, B. Ștefănescu, I. Pop, D. Vodnar

{"title":"Isolated Microorganisms for Bioconversion of Biodiesel-Derived Glycerol Into 1,3-Propanediol","authors":"L. Mitrea, L. Călinoiu, Gabriela Precup, M. Bindea, B. Rusu, M. Trif, B. Ștefănescu, I. Pop, D. Vodnar","doi":"10.15835/BUASVMCN-FST:0014","DOIUrl":"https://doi.org/10.15835/BUASVMCN-FST:0014","url":null,"abstract":"During biodiesel production, massive amounts of raw glycerol are created generating an environmental issue and the same time an increase of biodiesel production cost at the same time. This raw glycerol could be converted by specific strains into value-added products, like 1,3-propanediol (1,3-PD), an important monomer used in the synthesis of biodegradable polyesters. The present work is based on recent scientific articles and experimental studies on the targeted topic, namely on the use of bacterial strains for bioconversion of biodiesel-derived glycerol into valuable products, like 1,3-PD. Concentrations, yields and productivity of 1,3-PD are presented for various bacterial strains. Important results as respects the microbial bioconversion of biodiesel-derived glycerol into 1,3-PD were registered for strains like Klebsiella pneumoniae, Citrobacter freundii, Escherichia coli and Lactobacillus diolivorans. From this study can be concluded that waste glycerol may be used as a nutrient source for microbial development and the production of 1,3-propanediol with high concentrations and yields.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"29 1","pages":"43"},"PeriodicalIF":0.0,"publicationDate":"2017-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90078603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

The suitability and the bio-chemical characteristics of soils from the Northwest Region of Development from Romania, for blueberry crop. 罗马尼亚西北发展区土壤对蓝莓作物的适宜性及生化特性。

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2017-11-20 DOI: 10.15835/buasvmcn-agr:0007

A. Boț, I. Păcurar, L. Szajdak, S. Roșca

{"title":"The suitability and the bio-chemical characteristics of soils from the Northwest Region of Development from Romania, for blueberry crop.","authors":"A. Boț, I. Păcurar, L. Szajdak, S. Roșca","doi":"10.15835/buasvmcn-agr:0007","DOIUrl":"https://doi.org/10.15835/buasvmcn-agr:0007","url":null,"abstract":"We conducted several bio-chemical analyses on soil samples collected from eight blueberry plantations from Northwest Region of Development, using such as Kjeldahl method for total N, Perucci, Krawczyński, Hoffman and Teicher methodology for determine soil enzyme. The bio-chemical analyses conducted provide a better qualitative characterization of soils, providing significant information regarding their fertility degree and favourability for blueberries. For instance, the higher amount of total organic carbon found in four of the eight studied plantation, can be correlated with the same higher amount of enzyme present in soil which have an influence on them, xanthine oxidase and peroxidase activity. Taking into account the requirements needed for a blueberry plantation, we demonstrate that organic soils have also had the highest amount of bio-chemical compounds, such as cambisoil, met in Galații Bistriței, where were also found the highest amounts of different forms of nitrogen (1.755 g/kg total N; 0.0189 g/kg NH4 and 0.0231g/kg NO3 in Galații Bistriței, comparing to 1.344 g/kg of total nitrogen; 0.0126 g/ kg NH4 and 0.0119 g/kg NO3 in Ulmeni), different forms of carbon and the enzymes that influence this compounds in soil, xanthine oxidase activity, peroxidase activity and nitrate reductase activity.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"87 1 1","pages":"69-78"},"PeriodicalIF":0.0,"publicationDate":"2017-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87687995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of essential oils extracted from different aromatic plants by FTIR spectroscopy. 不同芳香植物精油的傅里叶红外光谱表征。

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2017-05-16 DOI: 10.15835/BUASVMCN-FST:12634

M. Morar, Florinela Fetea, A. Rotar, M. Nagy, C. Semeniuc

引用次数: 15

Obtaining a Functional Product Through the Exploitation of Mushroom Flour in Pasta 利用蘑菇粉开发功能性面食产品

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2017-05-16 DOI: 10.15835/BUASVMCN-FST:12641

C. Mureșan, A. Fǎrcaş, S. Man, Ramona Suharoschi, R. Vlaic

{"title":"Obtaining a Functional Product Through the Exploitation of Mushroom Flour in Pasta","authors":"C. Mureșan, A. Fǎrcaş, S. Man, Ramona Suharoschi, R. Vlaic","doi":"10.15835/BUASVMCN-FST:12641","DOIUrl":"https://doi.org/10.15835/BUASVMCN-FST:12641","url":null,"abstract":"The present study focuses on the influence of adding mushroom flour on a certain assortment of pasta. The research comprises two major directions: the study of the raw materials used to produce pasta from a compositional point of view and the quantification of some biologically active compounds of interest; emphasizing the potential of using Boletus edulis mushroom flour in the composition of pasta. For this purpose, two types of pasta have been created, with different percentages of mushroom, 10% and 20%, but also a blank sample obtained in the same conditions, but without mushroom flour. To achieve the goal the following analyzes were conducted: proteins, total polyphenols, antioxidant activity, fat, humidity, ashes, acidity, increase in volume of the boiled pasta and customers’ preferences. By using acceptability test performed on the 9-point hedonic test has been established that the consumers preferred pasta enriched with 10% mushroom flour. The present results are therefore helping the food industry regarding product diversity, consumers being eager to consume these products which have nutritional value and functional proprieties","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"47 1","pages":"17"},"PeriodicalIF":0.0,"publicationDate":"2017-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91127525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Characterization Phyto-Socio-Ecological of Agrostis capillaris L. Grasslands 毛缕草草地植物社会生态特征

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2016-11-30 DOI: 10.15835/BUASVMCN-AGR:12450

Mirela Cirebea, I. Rotar, R. Vidican, F. Păcurar, A. Malinas, O. Ranta

{"title":"Characterization Phyto-Socio-Ecological of Agrostis capillaris L. Grasslands","authors":"Mirela Cirebea, I. Rotar, R. Vidican, F. Păcurar, A. Malinas, O. Ranta","doi":"10.15835/BUASVMCN-AGR:12450","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12450","url":null,"abstract":"Floristic composition of the pastures is a mirror action and practical factors applied station and management (maintenance and how to use). The purpose of this research is to assess the state of the biodiversity and pastoral value for Agrostis capillaries L. grasslands from the mountain area. Also, there has been analyzed the floristic composition and a series of ecological indexes, respectively humidity, soil reaction, temperature, and nitrogen. We examined how estimated species diversity patterns changed with varying survey intensity from BAƒiE™oara village, Cluj County, Romania, an Agrostis capillaries L. grasslands. The experiment was performed in 2015. The vegetation observations were made on 29 plots. In this descriptive plot been identified the type of grassland Agrostis capillaries , described in boreal at altitudes between 850 and 1200, generally starting on exhibitions east until the south (90Es - 180 Es).The floristic composition of the Agrostis capillaries grasslands from the studied area is influenced by the local conditions and the intensity of the exploitation, these surfaces being under-exploited .","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"186 1","pages":"189-197"},"PeriodicalIF":0.0,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79756483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact on the Abandonment of Semi-Natural Grasslands from Apuseni Mountains 对阿普塞尼山地半自然草原撂荒的影响

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2016-11-30 DOI: 10.15835/BUASVMCN-AGR:12417

I. Vaida, I. Rotar, F. Păcurar, R. Vidican, A. Pleșa, A. Malinas, V. Stoian

{"title":"Impact on the Abandonment of Semi-Natural Grasslands from Apuseni Mountains","authors":"I. Vaida, I. Rotar, F. Păcurar, R. Vidican, A. Pleșa, A. Malinas, V. Stoian","doi":"10.15835/BUASVMCN-AGR:12417","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12417","url":null,"abstract":"According to The European Communion in Europe there are large areas of abandoned grasslands (Osterburg and colab., 2010). The abandonment of grasslands entails substantial changes to the vegetation cover. Usually, after a period of time, semi-natural grasslands start to develop forestlike features. In Romania despite the existence of a subsidiary system large areas with semi-natural grasslands are abandoned. The objective of this paper was to analyze the effect of abandonment on the structure of vegetation cover. The experiment consists in 3 experimental variants (1 mowed annually, 1 abandoned for 5 years and 1 abandoned for 15 years) and is located in the village of GheE›ari, from GA¢rda de Sus commune at an altitude of 1130 m. Vegetation was studied using the Braun-Blanquet method, modified by PAƒcurar and Rotar in 2014. The scientific results were processed with the numerical analysis application (Cluster Analyses) belonging to PC-ORD program. Results showed that the grassland abandoned for 5 years did not show any statistical difference compared to the grassland mowed annually. The grassland abandoned for 15 years showed modification in the structure of vegetation cover translated by the disappearance of numerous species.Our reccomandation is that semi-natural grasslands, which have numerous economical disadvantages because of their location, should be mowed at least every five years.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"27 1","pages":"323-331"},"PeriodicalIF":0.0,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86460773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of fertilizer regime on soil fauna. 施肥制度对土壤动物的影响。

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2016-11-30 DOI: 10.15835/BUASVMCN-AGR:12445

M. Șandor, T. Brad, A. Maxim, V. Șandor, B. Onica

引用次数: 4

Influence of Climate Factors and Plant Varieties on the Hay Technology (Fibrous Feed) 气候因子和植物品种对干草技术(纤维饲料)的影响

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2016-11-30 DOI: 10.15835/BUASVMCN-AGR:12404

V. Bărbieru, M. Olar, O. Ranta, M. Muntean, O. Marian, L. Ognean, Georgiana Cătunescu

引用次数: 0

The Effects of Phosphate Solubilizing Rhizobacteria on Soybean (Glycine max. L.) Plants Grown under Insoluble Phosphate Fertilization 磷酸增溶根杆菌对大豆甘氨酸最大值的影响。l .)不溶性磷酸盐施肥下生长的植物

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2016-11-30 DOI: 10.15835/BUASVMCN-AGR:12395

V. Rotaru

引用次数: 0

Mineral Fertilization with UAN on Natural Grassland Festuca rubra L. with Agrostis capillaries L. 天然草地红羊茅与毛缕草的氮素施肥研究。

Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Pub Date : 2016-11-30 DOI: 10.15835/BUASVMCN-AGR:12449

I. Rotar, Mirela Cirebea, R. Vidican, F. Păcurar, A. Malinas, O. Ranta

{"title":"Mineral Fertilization with UAN on Natural Grassland Festuca rubra L. with Agrostis capillaries L.","authors":"I. Rotar, Mirela Cirebea, R. Vidican, F. Păcurar, A. Malinas, O. Ranta","doi":"10.15835/BUASVMCN-AGR:12449","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12449","url":null,"abstract":"An important part of efficient livestock production is ensuring the sufficient grass for hay and pasture. However, low soil nutrient levels often limit forage production. With good fertilizer management and soil fertility, the productivity of many hay and pasture fields can be greatly improved. Through good fertilizer management, the productivity of many hay and pasture fields can be significantly improved by Ross H. McKenzie (2005). The aim of this paper was the effect of fertilization with liquid fertilizer (UAN) the harvest of dry and floristic composition changing on natural grassland. The experiment whose results we present was placed in 2014 in the place in Baisoara Mountain village, Cluj County. Experience has been placed on the Festuca rubra and Agrostis capillaries - of grassland type. The natural grassland of Festuca rubra with Agrostis capillaries responded very well to mineral fertilizers with liquid fertilizer UAN. The floristic composition of natural grassland fertilized with liquid fertilizers based on nitrogen, it can be seen an increase the Gramineae families and an evidence downward trend from Fabaceae families.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"23 1","pages":"300-305"},"PeriodicalIF":0.0,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80521954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2