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- Author:
- Eunice Valduga, et al. ; Anne Luize Lupatini Menegotto; Ilizandra Aparecida Fernandes; Juliana Steffens; Show all 4 Authors
- Source:
- Journal of applied phycology 2022 v.34 no.1 pp. 311-320
- ISSN:
- 0921-8971
- Subject:
- Arthrospira platensis; algology; electrophoresis; experimental design; industrial applications; phycobiliprotein; polyethylene glycol; potassium phosphates; sodium chloride; sodium citrate
- Abstract:
- ... Aqueous two-phase systems (ATPS) stand out as an alternative technique for recovering and concentrating proteins. However, the study of ATPS to recover Arthrospira platensis protein is still poorly reported. This research used a sequential strategy of experimental design to evaluate the protein recovery from A. platensis protein extract using ATPS composed of polyethylene glycol (PEG: 1500, 4000, ...
- DOI:
- 10.1007/s10811-021-02652-4
- https://doi.org/10.1007/s10811-021-02652-4
- Author:
- Eunice Valduga, et al. ; Anne Luize Lupatini Menegotto; Ilizandra Aparecida Fernandes; Danieli Bucior; Bianca Pinto Balestieri; Luciane Maria Colla; Cecilia Abirached; Elton Franceschi; Juliana Steffens; Show all 9 Authors
- Source:
- Journal of applied phycology 2021 v.33 no.5 pp. 2967-2982
- ISSN:
- 0921-8971
- Subject:
- Arthrospira platensis; algology; antioxidant activity; droplet size; ethanol; microalgae; potassium phosphates; protein content; sodium citrate
- Abstract:
- ... Arthrospira platensis has stood out, especially due to its high protein content and its potential for food application. However, the exploration of protein concentration techniques of this microalgae still presents a great challenge. Thus, the objective of this study was to evaluate the purification of A. platensis proteins by applying two different aqueous two-phase systems (ATS) composed of pota ...
- DOI:
- 10.1007/s10811-021-02505-0
- https://doi.org/10.1007/s10811-021-02505-0
- Author:
- Eunice Valduga, et al. ; Josiane Kilian; Ilizandra Aparecida Fernandes; Anne Luize Lupatini Menegotto; Clarice Steffens; Cecilia Abirached; Juliana Steffens; Show all 7 Authors
- Source:
- Food science and technology international 2020 v.26 no.8 pp. 657-665
- ISSN:
- 1532-1738
- Subject:
- emulsifying; emulsions; ice cream; mayonnaise; oils; pH; particle size distribution; protein value; solubility; temperature; ultrafiltration; whey; whey protein concentrate
- Abstract:
- ... The aim of this study was to concentrate whey protein by ultrafiltration process, evaluating the pressure at 1–3 bar and temperature of 10–20℃. In the conditions that show the more protein concentration were evaluated the interfacial and emulsifying properties at pH 5.7 and 7.0. The whey concentrate at 10℃ and 1.5 bar showed the higher protein value 36% (w/w), with soluble protein of 33.82% (solub ...
- DOI:
- 10.1177/1082013220921595
- https://doi.org/10.1177/1082013220921595
- Author:
- Eunice Valduga, et al. ; Andréia M. Faion; Jenefher Becker; Ilizandra A. Fernandes; Juliana Steffens; Show all 5 Authors
- Source:
- Journal of food process engineering 2019 v.42 no.4 pp. e13058
- ISSN:
- 0145-8876
- Subject:
- arginine; aspartic acid; cheesemaking; cheeses; ewe milk; flavor; glutamic acid; leucine; markets; methionine; milk; nutritive value; phenylalanine; proline; protein content; serine; threonine; ultrafiltration; valine; Brazil; Europe
- Abstract:
- ... This study aimed at concentrating sheep milk using ultrafiltration as well as Pecorino cheese elaboration and characterization. Sheep milk ultrafiltration at 22°C, for 30 min and 2 bar, provided an approximately fourfold increase in the protein and fat concentrations, consequently increased cheese yield by 17%. The cheese stored for 30 days was classified as high moisture (52%), semi‐fat (29%) wit ...
- DOI:
- 10.1111/jfpe.13058
- https://doi.org/10.1111/jfpe.13058
- Author:
- Eunice Valduga, et al. ; Caroline Reginatto; Gabriela Posso dos Santos; Kimberly Costa Ramos; Analia Borges Folle; Bruna Campos de Souza; Lenara Meneghel; Sabrina Carra; Tomas Augusto Polidoro; Mauricio Moura da Silveira; Eloane Malvessi; Show all 11 Authors
- Source:
- Biocatalysis and agricultural biotechnology 2022 v.42 pp. 102354
- ISSN:
- 1878-8181
- Subject:
- Aspergillus niger; agricultural biotechnology; biocatalysis; bioreactors; fermentation; inoculum; liquids; polygalacturonase; solid state culture; spores
- Abstract:
- ... In this work, the pectinase production by Aspergillus niger LB-02-SF was evaluated in relation to the inoculation conditions of solid-state cultivations carried out in Becher flasks and in rotating drum bioreactor. From the inoculation by spore suspension in the concentration of 7 × 10⁷ spore/100 g of wet medium (gwm), which is standard inoculum condition, were evaluated: different concentrations ...
- DOI:
- 10.1016/j.bcab.2022.102354
- https://doi.org/10.1016/j.bcab.2022.102354
- Author:
- Eunice Valduga, et al. ; Juliana Barbosa; Bruna Maria Saorin Puton; Bruno Fischer; Alexander Junges; Natalia Paroul; Clarice Steffens; Jamile Zeni; Juliana Steffens; Geciane Toniazzo Backes; Rogério Luis Cansian; Show all 11 Authors
- Source:
- Industrial biotechnology 2020 v.16 no.6 pp. 368-374
- ISSN:
- 1931-8421
- Subject:
- Staphylococcus aureus; biotechnology; carbon dioxide; color; inactivation; inoculum; kinetics; mass; pH; pressure; salmon
- Abstract:
- ... The present study evaluated the effects of pressure, depressurization rate, and ratio of inoculum mass to CO₂ mass in the inactivation of Staphylococcus aureus, as well as the determination of D-values and physicochemical changes (aw, color and pH) caused by such treatment in raw salmon. Pressure and depressurization rate had a positive significant influence on the inactivation of S. aureus, where ...
- DOI:
- 10.1089/ind.2020.0024
- https://doi.org/10.1089/ind.2020.0024
- Author:
- Eunice Valduga, et al. ; Morgana de Marco; Roberta Cristina Souza; Leonardo Meirelles da Silva; Gabriela de Bastos; Rogério Marcos Dallago; Geciane Toniazzo Backes; Rogério Luis Cansian; Jamile Zeni; Show all 9 Authors
- Source:
- Industrial biotechnology 2020 v.16 no.4 pp. 241-246
- ISSN:
- 1931-8421
- Subject:
- Penicillium brasilianum; adhesion; biotechnology; cell growth; economic productivity; enzyme activity; enzymes; foams; fungi; metabolism; microbial growth; polyurethanes; refrigeration; storage quality
- Abstract:
- ... The present work aimed to immobilize Penicillium brasilianum fungus in situ or by contact in polyurethane foam and assess the production of exo-polygalacturonase with the immobilized fungus while evaluating the reuse, storage stability and kinetic parameters of production. The immobilization/adhesion processes in situ and in contact polyurethane resulted in activities of 2.01 ± 0.02 U/mL for both ...
- DOI:
- 10.1089/ind.2020.0004
- https://doi.org/10.1089/ind.2020.0004
- Author:
- Eunice Valduga, et al. ; Ronei C. Dariva; Daniele Bucior; Rosicler Colet; Ilizandra A. Fernandes; Guilherme S. Hassemer; Shana P. S. Miotto; Rogério L. Cansian; Jamile Zeni; Geciane T. Backes; Show all 10 Authors
- Source:
- Stärke = 2021 v.73 no.3-4 pp. e2000116
- ISSN:
- 0038-9056
- Subject:
- amylose; breads; cassava; cassava starch; cheesemaking; cheeses; compression strength; dough; hardness; product quality; texture; viscosity
- Abstract:
- ... This study aims to evaluate the influence of combined use of native cassava starch (CS) and modified cassava starches (MCS) on the quality of cheese bread formulations processed and frozen in an industrial system. The techno‐functional properties are evaluated on the dough and pieces of bread after baking. The formulation with the highest amylose content (28 wt%) and relatively smaller granule siz ...
- DOI:
- 10.1002/star.202000116
- https://doi.org/10.1002/star.202000116
- Author:
- Eunice Valduga, et al. ; Andressa Lanza; Rosselei Caiél da Silva; Ingrid Duarte dos Santos; Ionara Regina Pizzutti; Karine Cence; Rogério Luis Cansian; Jamile Zeni; Show all 8 Authors
- Source:
- Food science and biotechnology 2019 v.28 no.3 pp. 931-937
- ISSN:
- 1226-7708
- Subject:
- HT-2 toxin; aflatoxin B1; aflatoxin B2; aflatoxin G1; aflatoxin G2; cities; tandem mass spectrometry; wheat flour; Brazil
- Abstract:
- ... The aim of this study was to evaluate the mycotoxicological quality of wheat flours used by bakeries from the North Region in Rio Grande do Sul state, Brazil, regarding the presence of mycotoxins. On collecting type-1 refined wheat flour, a conglomerate sampling from 13 cities and 3 bakeries per city (n = 39), selected from the defined region was performed. The mycotoxins analysis was using QuEChE ...
- DOI:
- 10.1007/s10068-018-0537-4
- PubMed:
- 31093452
- PubMed Central:
- PMC6484039
- https://doi.org/10.1007/s10068-018-0537-4
- Author:
- Eunice Valduga, et al. ; Anne Luize Lupatini Menegotto; Ilizandra Aparecida Fernandes; Luciane Maria Colla; Jocelei Duarte; Mára Zeni Andrade; Cecilia Abirached; Elton Franceschi; Juliana Steffens; Show all 9 Authors
- Source:
- Journal of applied phycology 2020 v.32 no.6 pp. 3885-3900
- ISSN:
- 0921-8971
- Subject:
- Arthrospira platensis; algology; antioxidant activity; biomass; molecular weight; pH; phycocyanin; porosity; protein concentrates; protein content; protein value; ultrafiltration
- Abstract:
- ... The high protein content of Arthrospira platensis makes this cyanobacterium a great component of food. Thus, the protein obtained should guarantee the nutrient characteristic, in this case, as bioactivity and techno-functional properties. Membrane separation processes (MSPs) have been highlighted by their capacity to separate proteins and keep their properties. Therefore, MSP was used to concentra ...
- DOI:
- 10.1007/s10811-020-02219-9
- https://doi.org/10.1007/s10811-020-02219-9
- Author:
- Eunice Valduga, et al. ; Valeria Borszcz; Taísa Renata Piotroski Boscato; Karine Cenci; Jamile Zeni; Rogério Luis Cansian; Geciane Toniazzo Backes; Show all 7 Authors
- Source:
- Czech Journal of Food Sciences v.36 no.6 pp. 476-479
- ISSN:
- 1805-9317
- Subject:
- Aspergillus niger; acetates; agitation; citrates; experimental design; pectinesterase; polysorbates; solid state culture; solvents; temperature
- Abstract:
- ... Different solvents and extraction solutions (distilled water, NaCl, Tween 80, citrate buffer, and acetate buffer) were evaluated for enzymes recovery. The independent variables evaluated were agitation (12–348 rpm), time (4.8–55.2 min), and temperature (13.2–46.8°C) and 10 extraction cycles, using an experimental design (Central composite rotatable design 23). Pectin methyl esterase max ...
- DOI:
- 10.17221/252/2017-cjfs
- https://doi.org/10.17221/252/2017-cjfs
- Author:
- Eunice Valduga, et al. ; Andréia Dalla Rosa; Alexander Junges; Ilizandra Aparecida Fernandes; Rogério Luis Cansian; Marcos L. Corazza; Elton Franceschi; Geciane Toniazzo Backes; Show all 8 Authors
- Source:
- Journal of food science and technology 2019 v.56 no.8 pp. 3864-3876
- ISSN:
- 0022-1155
- Subject:
- Olea europaea; acetone; adsorption; antioxidant activity; bioactive compounds; carbon dioxide; ethanol; ethyl acetate; flavonoids; kinetics; leaves; mathematical models; oleuropein; olives; solvents; supercritical fluid extraction; temperature
- Abstract:
- ... In this study, the extraction yield, the mathematical modeling of pressurized liquid extraction (PLE) kinetics with sub- and supercritical carbon dioxide (SC-CO₂) of olive leaves (Olea europaea) and the biological activity of the extracts were evaluated. The extraction with PLE was conducted isobarically (10.3 MPa), varying the temperature (20, 40 and 60 °C) and the solvent (ethyl acetate, acetone ...
- DOI:
- 10.1007/s13197-019-03856-w
- PubMed:
- 31413412
- PubMed Central:
- PMC6675833
- https://doi.org/10.1007/s13197-019-03856-w
- Author:
- Eunice Valduga, et al. ; Rosicler Colet; Marco Di Luccio; Show all 3 Authors
- Source:
- European food research & technology 2015 v.240 no.1 pp. 173-182
- ISSN:
- 1438-2377
- Subject:
- Sporidiobolus; aeration; agricultural wastes; air; carotenoids; corn steep liquor; culture media; food research; glycerol; malt extract; mixing; pH; parboiling; rice; specific growth rate
- Abstract:
- ... This work studied the fed-batch production of carotenoids by Sporidiobolus salmonicolor (CBS 2636) using agro-industrial waste as substrates (glycerol, corn steep liquor, parboiled rice waste). The feed rate was varied after 24 h of bioproduction, using glycerol (85 % pure and crude), peptone and malt extract in the feed. The maximum concentration of total carotenoids found was 4,400 μg/L in 96 h ...
- DOI:
- 10.1007/s00217-014-2318-5
- https://doi.org/10.1007/s00217-014-2318-5
- Author:
- Eunice Valduga, et al. ; Karine Cence; Patrícia dos Santos; Marcelo Valle Garcia; Marina Venturini Copetti; Rogério Luis Cansian; Jamile Zeni; Geciane Toniazzo Backes; Show all 8 Authors
- Source:
- Lebensmittel-Wissenschaft + Technologie 2019 pp. 108457
- ISSN:
- 0023-6438
- Subject:
- Aspergillus flavus; Aspergillus niger; Penicillium simplicissimum; antibiotics; beta-glucanase; biological control; chitinase; fermented sausages; fungal contamination; fungal growth; fungi; fungicides; growth retardation; mycotoxins; salami; spoilage fungi; spores
- Abstract:
- ... This study evaluates the in vitro effect of commercial β-glucanase and chitinase in controlling the growth of undesirable fungal contaminants on salami surface, which can cause both changes in sensory aspects of the sausage and production of mycotoxins and antibiotics. Hence, we isolated and identified four filamentous fungi, Penicillium simplicissimum (F1), Aspergillus niger complex (F2), Penicil ...
- DOI:
- 10.1016/j.lwt.2019.108457
- https://doi.org/10.1016/j.lwt.2019.108457
- Author:
- Eunice Valduga, et al. ; Jonaina Pili; Cindy Elena Bustamante Vargas; Carolina Elisa Demaman Oro; Geciane Toniazzo Backes; Jamile Zeni; Show all 6 Authors
- Source:
- Industrial biotechnology 2018 v.14 no.4 pp. 212-221
- ISSN:
- 1931-8421
- Subject:
- Aspergillus niger; Citrus; biotechnology; comparative study; corn steep liquor; fungi; half life; magnesium sulfate; orange peels; pH; parboiling; pectinesterase; pectins; pollution; potassium phosphates; rice; spores; submerged fermentation; temperature; value-added products
- Abstract:
- ... This work is a comparative study of the bioproduction of pectin methylesterase (PME) with medium composed of agro-industrial residues and synthetic medium using the filamentous fungus Aspergillus niger. After medium optimization, a kinetic evaluation was carried out, and the enzyme was characterized in terms of optimum pH and temperatures and stability at high and low temperatures. The maximum act ...
- DOI:
- 10.1089/ind.2018.0013
- https://doi.org/10.1089/ind.2018.0013
- Author:
- Eunice Valduga, et al. ; Jonaina Pili; Angélica Danielli; Nádia LD Nyari; Jamile Zeni; Rogério L Cansian; Geciane T Backes; Show all 7 Authors
- Source:
- Food science and technology international v.24 no.2 pp. 97-109
- ISSN:
- 1082-0132
- Subject:
- Aspergillus niger; agricultural wastes; corn steep liquor; enzyme activity; fungi; half life; iron; orange peels; pH; parboiling; pectin lyase; pectins; rice; spores; submerged fermentation; sulfates; temperature; yeast extract
- Abstract:
- ... This study aims at investigating pectin lyase bioproduction in submerged fermentation with synthetic medium and agro-industrial residues, using the filamentous fungus Aspergillus brasiliensis. The maximum pectin lyase activity in a synthetic medium (42 g/l pectin, 40 g/l yeast extract, and 0.02 g/l iron sulfate) was 31 U/ml, and 46 U/ml in the agro-industrial medium (160 g/l orange peel, 150 g/l c ...
- DOI:
- 10.1177/1082013217733574
- https://doi.org/10.1177/1082013217733574
- Author:
- Eunice Valduga, et al. ; Rosicler Colet; Letícia Urnau; Guilherme De Souza Hassemer; Bruna Bernar Dias; Jamile Zeni; Eliseu Rodrigues; Rosângela Assis Jacques; Marco Di Luccio; Show all 9 Authors
- Source:
- Industrial biotechnology 2019 v.15 no.5 pp. 311-321
- ISSN:
- 1931-8421
- Subject:
- Sporidiobolus; aeration; agitation; bioreactors; carotenoids; coproducts; corn steep liquor; glycerol; hydrolysates; parboiling; rice; yeasts
- Abstract:
- ... This work studied the optimization of carotenoids production by Sporidiobolus salmonicolor (CBS 2636) in a fed-batch bioreactor using coproducts (crude glycerol, corn steep liquor, rice parboiling water and yeast hydrolyzate). The maximum total carotenoids concentration, cell productivity and total were 4753 μg/L, 0.076 g/L·h and 48 μg/g, respectively, with a flow rate of 112 mL every 12 h, using ...
- DOI:
- 10.1089/ind.2019.0015
- https://doi.org/10.1089/ind.2019.0015
- Author:
- Eunice Valduga, et al. ; Letícia Urnau; Rosicler Colet; Paloma Truccolo Reato; Janaína Fernandes de Medeiros Burkert; Eliseu Rodrigues; Raul Gomes; Rosângela Assis Jacques; Clarice Steffens; Show all 9 Authors
- Source:
- Industrial biotechnology 2019 v.15 no.1 pp. 25-34
- ISSN:
- 1931-8421
- Subject:
- aeration; agitation; agricultural wastes; beta-carotene; bioreactors; corn steep liquor; experimental design; glycerol; high performance liquid chromatography; mass spectrometry; parboiling; rice; yeasts
- Abstract:
- ... The aim of this work was to evaluate the production of carotenoids from red yeast Phaffia rhodozyma in a bioreactor using agro-industrial wastes. This study used a sequential strategy of experimental design (Placket-Burman design and central composite rotatable design) to maximize carotenoids bioproduction using agro-industrial byproducts and to optimize agitation and aeration rates in bioreactor. ...
- DOI:
- 10.1089/ind.2018.0027
- https://doi.org/10.1089/ind.2018.0027
- Author:
- Eunice Valduga, et al. ; Ludmila Noskoski Salazar; Simone Sagioratto Dal Maso; Tailan Antonio Ogimbosvski; Naionara A. Daronch; Jamile Zeni; Geciane Toniazzo Backes; Rogério Luis Cansian; Show all 8 Authors
- Source:
- Industrial biotechnology 2019 v.15 no.2 pp. 79-88
- ISSN:
- 1931-8421
- Subject:
- Penicillium; agitation; biotechnology; citrates; corn cobs; corn stover; endo-1,4-beta-glucanase; energy; enzyme activity; pH; solid state fermentation; solvents; soybean hulls; spores; temperature; thermal stability; water content
- Abstract:
- ... The aim of this work was to maximize the production and the partial characterization of carboxymethylcellulase (CMCase) and filter paper enzyme activity (FPase) using a new isolate by solid state fermentation with agro-industrial substrates and potential application of hydrolytic cellulosic substrates. Four isolates were initially evaluated, and the isolate I-130, identified as Penicillium sp., wa ...
- DOI:
- 10.1089/ind.2018.0029
- https://doi.org/10.1089/ind.2018.0029
- Author:
- Eunice Valduga, et al. ; Valeria Borszcz; Taisa P. Boscato; Juliana Flach; Karine Cence; Jamile Zeni; Rogério Luis Cansian; Geciane Toniazzo Backes; Show all 8 Authors
- Source:
- Industrial biotechnology 2017 v.13 no.6 pp. 311-318
- ISSN:
- 1931-8421
- Subject:
- Aspergillus niger; Pseudomonas; amylases; biofilm; biotechnology; corn steep liquor; economic sustainability; endo-1,4-beta-glucanase; food industry; orange peels; polygalacturonase; solid state culture; wheat bran
- Abstract:
- ... The objective of this study was to evaluate the removal capacity of bacterial film formed by Pseudomonas sp., using commercial enzymes (pectinase, cellulase, and amylase) and the enzymatic extract obtained by solid-state cultivation (SSC) from Aspergillus niger ATCC 9642. The bacterial biofilm removal (Pseudomonas sp.) was evaluated using the commercial enzyme microplate technique and the crude en ...
- DOI:
- 10.1089/ind.2017.0021
- https://doi.org/10.1089/ind.2017.0021
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