Browsing by Author "Ungureanu, Elena"

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  • Analysis of chemical parameters for three types of reconstituted milk powder 
    Eperjessy, Diana-Beatrice; Trofin, Alina-Elena; Ungureanu, Elena; Trincă, Lucia-Carmen; Sandu, Tatiana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2019)
    The infant formula means a breast milk substitute specifically made to meet the nutritional requirements of infants during the first few months of life until appropriate complementary feed is introduced. ...
  • Analysis of the green areas with unlimited access and their impact on the population from Iaşi city 
    Sandu, Tatiana; Trofin, Alina-Elena; Pantazi, Viorica; Ungureanu, Elena (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2015)
    The current area of Iasi is approx. 3.770 ha of which the green system occupies approx. 826.80 ha (both green spaces within city limits and outside the city) and only 362.60 ha represent unlimited access green spaces ...
  • Calcium carbonate-carboxymethyl chitosan hybrid materials 
    Fortună, Maria-Emiliana; Ungureanu, Elena; Jităreanu, Carmenica-Doina (MDPI, 2021-06-16)
    In the present work, precipitated calcium carbonate (PCC) and carboxymethyl chitosan (CMC) were prepared to obtain new hybrid materials used in papermaking. In the first step, oc‐ curred the precipitation of CaCO3 in ...
  • Chemical and spectral characterizations for some lignin products 
    Ungureanu, Elena; Jităreanu, Carmenica-Doina; Trofin, Alina-Elena; Sandu, Tatiana; Popa, V.I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2015)
    Lignin derivative (the commercial product - Protobind 1000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerland was synthesized from annual plants. The present study’s aim was to modify commercial ...
  • Chemical transformations and spectral characterization to Protobind 3000 lignin 
    Ungureanu, Elena; Ariton, Adina-Mirela; Trofin, Alina-Elena; Jităreanu, Carmenica-Doina; Ungureanu, O.C.; Popa, V.I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2018)
    Lignin derivative (the commercial product -Protobind 3000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerlandwas synthesized from annual plants. The present study’s aim was tomodify ...
  • The decrease in nitrate content of polluted waters by using waste wood as adsorbent material 
    Trofin, Alina-Elena; Ungureanu, Elena; Trincă, Lucia-Carmen; Sandu, Tatiana; Iacob, Cătălina-Ioana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2015)
    Large amounts of waste wood obtained from logging and wood processing have found various uses in the furniture industry, agriculture, entering into various compost recipes with applications in restoring soil's fertility ...
  • Efficiency of some screening methods used in monitoring the quality of vegetable substrates and the presence of mycotoxins 
    Ariton, Adina-Mirela; Neculai Văleanu, Andra-Sabina; Poroșnicu, Ioana; Ungureanu, Elena; Trincă, Lucia-Carmen (“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021)
    The purpose of this study was to evaluate the effectiveness of screening methods applied in the analysis of plant products (cereal seeds, feed, hay, etc.) used in agriculture and animal husbandry. Their screening can be ...
  • Evaluation of water quality in the Prut River, Sculeni-Iasi Area by determining some physical-chemical indicators 
    Gîlcă, Valerica; Gîlcă, Ioan; Simeanu, Daniel; Simeanu, Cristina; Ungureanu, Elena; Radu Rusu, Răzvan-Mihail (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2020)
    In 2018, a series of researches were carried out regarding the main water quality indicators in the Prut river, Iasi county, Sculeni area. Following the taking and carrying out of physico-chemical analyzes on the collected ...
  • Gravitational analyses applied to protobind 1000 lignin 
    Ungureanu, Elena; Ungureanu, O.C.; Trofin, Alina-Elena; Ariton, Adina-Mirela; Jităreanu, Carmenica-Doina; Popa, V.I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2020)
    Lignin derivative (the commercial product -Protobind 1000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerlandwas synthesized from annual plants. The ligninstands out by a very large range ...
  • Gravitational analyses applied to protobind 1000 lignin 
    Ungureanu, Elena; Ungureanu, O.C.; Trofin, Alina-Elena; Ariton, Adina-Mirela; Jităreanu, Carmenica-Doina; Popa, V.I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2020)
    Lignin derivative (the commercial product - Protobind 1000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerland was synthesized from annual plants. The lignin stands out by a very large ...
  • Gravitational sedomentometrical analyses applied to the sarkanda grass lignin 
    Ungureanu, Elena; Ungureanu, O.C.; Trofin, Alina-Elena; Ariton, Adina-Mirela; Jităreanu, Carmenica-Doina; Popa, V.I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2019)
    The lignin stands out by a very large range of applications in extremely various domains. The adsorption-desorption capacity, ion exchange capacity and its catalytic properties are just a few specific ...
  • Lignin derivatives modified by hydroxymethylation and epoxydation reactions 
    Ungureanu, Elena; Jităreanu, Carmenica-Doina; Trofin, Alina-Elena; Ungureanu, O.C.; Popa, V.I. (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2017)
    Lignin derivative (the commercial product -Protobind 2000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerlandwas synthesized from annual plants. The present study’s aim was tomodify ...
  • The modification of some chemical parameters for different brands of milk during refrigeration 
    Trofin, Alina-Elena; Ungureanu, Elena; Trincă, Lucia-Carmen; Sandu, Tatiana; Parascan, Letiția (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2018)
    Milk is one of the main foods especially in the diet of small children but not only theirs. In addition to consumption as pasteurized or high-temperature treated (UHT) milk, it is a raw ...
  • Observations on nitrite content of some fruits and vegetables during different storage conditions 
    Eperjessy, Diana-Beatrice; Trofin, Alina-Elena; Ungureanu, Elena; Trincă, Lucia-Carmen; Sandu, Tatiana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2020)
    Due to the low caloric intake, correlated with the high content of vitamins, fiber and mineral salts, plant foods are essential for a healthy diet. On the other hand, plant products can also be an ...
  • Observations on nitrite content of some fruits and vegetables during different storage conditions 
    Eperjessy, Diana-Beatrice; Trofin, Alina-Elena; Ungureanu, Elena; Trincă, Lucia-Carmen; Sandu, Tatiana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2017)
    Due to the low caloric intake, correlated with the high content of vitamins, fiber and mineral salts, plant foods are essential for a healthy diet. On the other hand, plant products can also be an ...
  • Study on the chemical composition of some baby-food and juice products for children 
    Eperjessy, Diana-Beatrice; Trofin, Alina-Elena; Trincă, Lucia-Carmen; Ungureanu, Elena; Sandu, Tatiana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2019)
    Blended foodor baby-food products marketed for children contain a source of protein, often meat, or can be made entirely from cereals, fruit blends and vegetables. These products must be appropriatefrom the ...
  • Study on wood waste materials' capacity to retain heavy metal ions from aqueous solutions, under dynamic conditions 
    Trofin, Alina-Elena; Ungureanu, Elena; Trincă, Lucia-Carmen; Sandu, Tatiana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2016)
    Wood residues are commonly used in the furniture industry and in agriculture, as composts' ingredients or in different techniques as absorbents, having a large specific surface and a chemical composition appropriate ...
  • The variation of the ionic calcium adsorption coefficient on a resin with sulphonic groups 
    Trofin, Alina-Elena; Ungureanu, Elena; Trincă, Lucia-Carmen; Sandu, Tatiana (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași, 2017)
    Determination of the adsorption coefficient is essential for all retention processes of ionic species on surfaces, to determine the process efficiency and influence of the various factors on the adsorption. ...