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7篇 您的检索式:作者名="Daniel Pasquini"
    题名 作者 年代 出处 被引量
1Surface esterification of cellulose fibers: Characterization by DRIFT and eontact angle measurements显示文摘DANIEL PASQUINI MOHAMED NACEUR BELGACEM ALESSANDRO GANDINI 2006Journal of Colloid and Interface Science2006,,295:1
2Sugar cane bagasse pulping using supercritical CO2 associated with co-solvent 1-butanol/water显示文摘Daniel Pasquini Maria T B Luiz H Ferreira 2005Journal of Supercritical Fluids2005,,:1
3Surface esterification of cellulose fibers: Characterization by DRIFr and contact angle measurements 显示文摘DANIEL PASQUINI MOHAMED NACEUR BELGACEM ALESSANDRO GANDINI 2006Journal of Colloid and Interface Science2006,295,1:1
4Saccharification of Sugarcane Bagasse Using an Enzymatic Extract Produced by Aspergillus fumigatus显示文摘This study investigates the efficiency of a crude enzymatic extract produced by Aspergillus fumigatus SCBM6 by solid state fermentation(SSF)in the hydrolysis of alkali pretreated sugarcane bagasse(PTB).After SSF using in natura sugarcane bagasse(SCB),the enzymatic extract presented 21.33 U.g^-1 of β-glucosidase and 544.46 U.g^-1 of xylanase.The alkaline pretreatment with sodium hydroxide 2%NaOH(w/v)removed 43% of the lignin from PTB and the cellulosic fraction increased to 75%.The hydrolysis was optimized as a function of time,temperature,and concentration of PTB.After hydrolysis,the maximum yield(30.05%)of total released reducing sugars(TRS)was obtained under the following conditions:24 h,55℃,2% of PTB and 3 U.g^-1 of β-glucosidase(CBU).Furthermore,an approximate TRS value(26.4%)was also obtained after saccharification carried out during 6 h,55℃,4% of PTB and 1 CBU.These results indicate that hydrolysis can be performed in a short incubation period and with low enzymatic load for reasonable TRS release.Kenia F.R.Lamounier Patrisia O.Rodrigues Daniel Pasquini Milla A.Baffi 2018Journal of Renewable Materials2018,6,2:0
5Edible Coatings Based on Apple Pectin,Cellulose Nanocrystals,and Essential Oil of Lemongrass:Improving the Quality and Shelf Life of Strawberries(Fragaria Ananassa)显示文摘In this work,nine different types of edible coating based on pectin,cellulose nanocrystals,glycerol,and essential oil of lemongrass were prepared and used to coat strawberries with a film formed directly on the surface of the coated fruit.The effects of the different edible coatings on refrigerated fruits in terms of weight loss,titratable acidity,total soluble solids,pH,and anthocyanin content was evaluated after 2 days,4 days,6 days,and 8 days of storage.Application of the edible coatings reduced the weight loss of the coated strawberries and the anthocyanin content.The total soluble solids content of or uncoated fruit increase more markedly than that of coated fruit.In contrast,pH was maintained for both coated and uncoated strawberries.The edible coatings were effective in minimizing of the weight loss,without worsening the physical chemistry attributes.The treatments T5 and T9 presented the best results.Ingrid Souza Vieira da Silva Natália Soares Prado Patrícia Gontijo de Melo Danilo Campion Arantes Mara Zeni Andrade Harumi Otaguro Daniel Pasquini 2019Journal of Renewable Materials2019,7,1:0
6Study of the Superficial Modification of Sisal Fibres with Lignin, and Its Use As a Reinforcement Agent in Cementitious Composites显示文摘The objective of this work was to evaluate different superficial treatments of sisal fibres employing lignin,and their use as a reinforcement agent in cementitious composites.The treatments consisted of superficially impregnating sisal fibres(S)with organosolv lignin(LO),organosolv lignin and glutaraldehyde(LOG),Kraft lignin(LK)and Kraft lignin and glutaraldehyde(LKG).The fibre modifications were verified by FTIR-ATR and SEM analyzes,and the presence of lignin on the surface of the fibres was evidenced,confirming the effectiveness of the treatments.The mechanical,thermal(by TGA)and water absorption properties of the fibres before and after the modifications were also investigated.After treatment,the modified fibres presented an expressive reduction of the water absorption and did not show significant changes in the mechanical properties when compared with the natural unmodified sisal fibre(SNAT).It was verified an increase in the thermal stability of the treated fibres which can be attributed to the insertion of lignin on the fibres.To evaluate the performance of the fibres in the cementitious composites,cement plates(CP)were produced with different treated fibres(CP-SLOG,CP-SLO,CP-SLKG,CP-SLK)and fibres without treatment(CP-SNAT).The composites were evaluated concerning to the water absorption,porosity and mechanical properties.The fractured regions were also investigated by SEM.All composites prepared showed similar values of absorption and porosity indexes.From the mechanical properties,the composites prepared with modified fibres showed a significant increase in the modulus of rupture and modulus of elasticity compared with CP-SNAT,while toughness was similar to all samples.From the SEM images,it was observed that the modified fibres immersed in the cementitious plates showed no degradation,indicating that the impregnation of lignin acted as a protective agent of the fibres.Therefore,the treatments of the fibres with lignin led to a significant improvement in the properties of the composites generating a treatment with potential for industrial application.Plínio B.Mundim Rondinele A.R.Ferreira Leila A.C.Motta Mariana A.Henrique Daniel Pasquini 2020Journal of Renewable Materials2020,8,8:0
7Special Issue on 15th Brazilian Polymer Conference:Biopolymers,Eco-Friendly and Biodegradable Polymers and Other Topics Related to Polymeric Materials Derived from Renewable Materials显示文摘This issue of Journal of Renewable Materials is a special issue dedicated to the 15th Brazilian Polymer Conference(15th CBPol)which was held in Bento Gonçalves,Rio Grande do Sul State,Brazil,from 27 to 31 October,2019[1].CBPol is the main scientific forum in the field of polymer science and technology in Brazil.The conference has been held biannually since 1991 and in this event had almost 900 participants mainly from Brazil,but also from Argentina,Chile,Peru,USA,Canada,Belgium,France,Great Britain,Portugal and Spain,with 60%students and 40%professionals.A total of 1,100 papers from 2725 authors were presented,from which 25%(280 papers)was in the field of Biomaterials showing the importance of these materials which are in general based on renewable resources.These 280 works were developed mainly by researchers from Brazilian institutions(universities and research institutes),mainly from the south and southeast regions of the country.The subject of more than 70%of the works was dedicated on vegetal raw materials,medicinal applications,packaging and composite materials.Antonio Aprigio da Silva Curvelo Antonio José Felix Carvalho Daniel Pasquini 2021Journal of Renewable Materials2021,9,4:0
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