DBA Center (Centre de Desenvolupaments Biotecnològics i Agroalimentaris)
Browse by
El centre DBA agrupa un conjunt d’investigadors provinents de diferents àrees científiques: química, biologia, farmàcia, enginyeria agronòmica i ciència i tecnologia dels aliments. És grup especialitzat en la investigació i transferència de tecnologia de la Universitat de Lleida, que estructura les seves capacitats tecnològiques en l’àmbit de les tecnologíes de la alimentació i químiques. [Més informació]
Collections in this community
Recent Submissions
-
Use of biobased crude glycerol, obtained biocatalytically, to obtain biofuel additives by catalytic acetalization of furfural using SAPO catalysts
(Elsevier, 2022)High-pure crude glycerol, obtained from the transesterification of coconut oil with ethanol using lipase enzyme- type as biocatalyst, has been used for the acetalization of furfural with several SAPO 5 and SAPO 34 catalysts. ... -
Introducing Lipophilicity to (Polyhydroxyalkyl) thiazolidine Carboxylic Acids Via Acylation
(American Chemical Society, 2022)he therapeutic efficacy of bioactive compounds isrelated to their bioavailability. In turn, the bioavailability dependson the equilibrium between the hydrophilicity and the lipophilicity.2(R,S)-(Polyhydroxyalkyl)thiazoli ... -
Sustainable Synthesis of Omega-3 Fatty Acid Ethyl Esters from Monkfish Liver Oil
(MDPI, 2021-01-13)The search for economic and sustainable sources of polyunsaturated fatty acids (PUFAs) within the framework of the circular economy is encouraged by their proven beneficial effects on health. The extraction of monkfish ... -
Effect of four novel bio-based DES (Deep Eutectic Solvents) on hardwood fractionation
(MDPI, 2020)Using the basic principle of construction between a hydrogen bond acceptor (HBA) and a hydrogen bond donor (HBD), four bio-based deep eutectic solvents (DESs) were prepared in a 1:2 molar ratio of HBA:HBD. 2,3-Dihydroxyp ... -
Preparation and uses of chlorinated glycerol derivatives
(MDPI, 2020-05-28)Crude glycerol (C3H8O3) is a major by-product of biodiesel production from vegetable oils and animal fats. The increased biodiesel production in the last two decades has forced glycerol production up and prices down. ... -
Combined analysis of primary metabolites and phenolic compounds to authenticate commercial monovarietal peach purees and pear juices
(MDPI, 2019-09-10)Here we authenticated single-varietal peach purees and pear juices on the basis of primary metabolite and phenolic compound analysis by Proton Nuclear Magnetic Resonance (1H-NMR) and Ultra Performance Liquid Chromatography ... -
Combining biocatalysts to achieve new phase change materials. Application to non-edible animal fat
(Elsevier, 2018)The thermal properties of various alkyl threo-9, 10-dihydroxystearates (DHSEs) prepared from non-edible fat were studied. Non-edible animal fat was hydrolyzed in a 93% yield with R. oryzae resting cells. Crude unsaturated ... -
Fatty acid eutectic mixtures and derivatives from non-edible animal fat as phase change materials
(Royal Society of Chemistry, 2017)A set of compounds from non-edible fat waste was prepared and their thermal behavior was studied. The fat was hydrolyzed and crystallized in a simple and robust process to yield palmitic acid-stearic acid (PA-SA) mixtures. ... -
Dispersive liquid–liquid microextraction and injection-port derivatization for the determination of free lipophilic compounds in fruit juices by gas chromatography-mass spectrometry
(Elsevier, 2017)A method consisting of dispersive liquid–liquid microextraction (DLLME) followed by injection-port derivatization and gas chromatography-mass spectrometry (GC–MS) for the analysis of free lipophilic compounds in fruit ... -
Volatile composition and enantioselective analysis of chiral terpenoids of nine fruit and vegetable fibres resulting from juice industry by-products
(Hindawi Publishing Corporation, 2017)Fruit and vegetable fibres resulting as by-products of the fruit juice industry have won popularity because they can be valorised as food ingredients. In this regard, bioactive compounds have already been studied but little ... -
Is it possible to substitute hexane with green solvents for extraction of carotenoids? A theoretical versus experimental solubility study
(Royal Society of Chemistry, 2016)The present study was designed to evaluate five green solvents, i.e. 2-methyltetrahydrofuran (2-MeTHF), dimethyl carbonate (DMC), cyclopentyl methyl ether (CPME), isopropyl alcohol (IPA) and ethyl acetate, for the substitution ... -
Biocatalytic preparation of dichloropropyl acrylates. Application to the synthesis of poly(dichloropropyl acrylates)
(Elsevier, 2013)The synthesis of dichloropropyl acrylates from dichloropropyl dodecanoates through a transesterification process using diverse commercial lipases and whole cells (fungal resting cells) is presented. The synthesis was carried ... -
A novel carotenoid, 4-keto-a-carotene, as an unexpected by-product during genetic engineering of carotenogenesis in rice callus
(Elsevier, 2014)Rice endosperm is devoid of carotenoids because the initial biosynthetic steps are absent. The early carotenogenesis reactions were constituted through co-transformation of endosperm-derived rice callus with phytoene ... -
H3PO4/metal halide induces a one-pot solvent-free esterification–halogenation of glycerol and diols
(Royal Society of Chemistry, 2013)As part of our continued effort to achieve the synthesis of halohydrin esters from polyols by a sustainable method, here we report on a multicomponent inorganic acid-mediated solvent-free synthesis. The synthesis was ... -
UHPLC–MS Analysis of Juvenile Hormone II in Mediterranean Corn Borer (Sesamia nonagrioides) Hemolymph Using Various Ionization Techniques
(American Chemical Society, 2012)The juvenile hormones (JHs) have been considered the most versatile hormones in the animal kingdom. JH-II is the most abundant JH in Sesamia nonagrioides, important maize pests in the Mediterranean basin. This study compared ... -
Use of crude glycerol from biodiesel producers and fatty materials to prepare allyl esters
(Springer Verlag, 2011)Vegetable oils and fats are important renewable raw materials for use by the biodiesel industry. One drawback of this industry is the large amounts of glycerol produced as a by-product. Consequently, crude glycerol is ... -
Determination of carotenoids by liquid chromatography/mass spectrometry: effect of several dopants
(Springer Verlag, 2011)Various carotenoids were analyzed by ultra-high-pressure liquid chromatography with tandem mass spectrometry detection (UHPLC-MS/MS). Three different techniques to ionize the carotenoids were compared: electrospray ionization ... -
Determination of the iodine value of biodiesel using 1H NMR with 1,4-dioxane as an internal standard
(Elsevier, 2010)Iodine values (IVs) of some biodiesel samples were analyzed using both 1H NMR and a standard iodometric method. 1H NMR was carried out with and without 1,4-dioxane as an internal standard (IS). The results obtained using ... -
A rapid and reliable direct method for quantifying meat acylglycerides with monomode microwave irradiation
(Elsevier, 2009)A rapid methodology for direct analysis of meat acylglycerides is proposed. A transesterification is carried out in a microwave reactor consisting of a monomode oven using chlorotrimethylsilane (CTMS) and methanol. ... -
A tandem Finkelstein-rearrangement–elimination reaction: a straightforward synthetic route to allyl esters
(Elsevier, 2009)Allyl esters can be obtained by a Finkelstein-rearrangement–elimination reaction of 2-chloro-1-(chloromethyl)ethyl esters induced by NaI. Sodium iodide can be used below equivalence using a reductive agent as sodium ...