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Analysis of two drying methods on the yield and activity of sulfated polysaccharides extracted from Halymenia sp. (Rhodophyceae) - doi: 10.4025/actascibiolsci.v34i1.6961 Biological Sciences
Rodrigues, José Ariévilo Gurgel; Rede Nordeste de Biotecnologia - RENÓRBIO; Vanderlei, Edfranck de Sousa Oliveira; Universidade Federal do Ceará - UFC; Quinderé, Ana Luíza Gomes; Universidade Federal do Ceará - UFC; Queiroz, Ismael Nilo Lino de; Universidade Federal do Ceará - UFC; Bessa, Érika Façanha; Universidade Federal do Ceará - UFC; Benevides, Norma Maria Barros; Universidade Federal do Ceará - UFC.
Sulfated polysaccharides (SPs) have attracted growing interest for various biotechnological applications. We evaluated the efficiency of two methods of drying SPs (M I and II) extracted from Halymenia sp Rhodophyceae in order to compare the yield, purification and anticoagulant activity. The total SPs (TSPs) were first extracted with papain in 100 mM sodium acetate (pH 5.0) containing cysteine and EDTA (5 mM). The TSPs obtained were dried in an oven (M I) or lyophilized (M II) and then examined by ion exchange chromatography (DEAE-cellulose) using the NaCl gradient technique. The fractions were analyzed by 0.5% agarose gel electrophoresis and the in vitro anticoagulant activity was evaluated by the activated partial thromboplastin time test using normal...
Palavras-chave: 2.08.01.00-9 Halymeniales; Sulfated macromolecules; Drying methods; Blood coagulation 2.08.01.00-9.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6961
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Effect of drying methods on the powder and compaction properties of microcrystalline cellulose derived from Gossypium herbaceum BJPS
Nwachukwu,Nkemakolam; Ofoefule,Sabinus Ifeanyi.
The effect of drying method, a process variable, on the powder and compaction properties of microcrystalline cellulose (MCC) obtained from the partial acid hydrolysis of bleached alpha (α) cellulose content of matured linters of Gossypium herbaceum (GH) was investigated. A portion of the wet MCC obtained was fluid bed dried at 60 ± 1 ºC, inlet air of 30 m3 min-1 for 3 h (coded MCC-GossF). The second portion was lyophilized at - 45 ± 2 ºC for 6 h (coded MCC-GossL). The physicochemical, scanning electron micrographs, X ray diffraction patterns and micromeritic properties of the derived MCCs were determined using standard methods. The cohesiveness and compactibility of the powders were investigated using Kawakita model while the deformation and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gossypium herbaceum; Powder; Compaction; Drying methods; Microcrystalline cellulose.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100581
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Effect of pretreatments and drying methods on some qualities of dried mango (Mangifera indica) fruit CIGR Journal
Osunde, Zinash Delebo.
The effect of pretreatments and drying methods on some qualities of dried mango fruits was studied.  The fruit slices were pretreated with three pretreatments – ascorbic acid dip at 31% w v-1 concentration, honey dip at 20% v v-1 concentration and steam blanching at a temperature of120°C and dried using three drying methods (sun, solar and oven drying).  In sun and solar drying the mango was dried for eight hours, while for oven drying six hours at an average temperature of32°C,41°C and65°C respectively.  Sliced mango fruits were soaked in the prepared solutions for four minutes, while the blanching was done for two minutes.  There were control samples for each drying methods.  Drying curves were generated and the drying rate, proximate composition,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural engineering mango; Pretreatments; Drying methods; Qualities; Vitamin C and β-carotene.
Ano: 2017 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3877
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Milling quality and rheological properties of two selected local and newly introduced rice cultivars; impacted by drying parameters and milling system CIGR Journal
Tajaddodi Talab, Kobra; Habibikia, Fateme.
Various postharvest parameters have an impact on the milling quality and rheological properties of rice. The objective of this study was to appraise the whole rice kernel percentage and pasting properties of local and newly introduced rice cultivars as affected by drying air temperature, grain final moisture content and type of rice whitener. The results of whole kernel percentage (WKP) indicated the superiority of abrasive type whitener over the friction type whitener. Bending strength had significant negative correlation with chalkiness, length, width and length to width ratio of grain. There was no significant correlation between WKP and bending strength. For Gohar, results showed that the drying parameters and type of whitener has a significant effect...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 1. Department of Agriculturat Engineering; Rice Research Institute of Iran; Agricultural Research; Education and Extension Organization (AREO); Iran; 2. Department of Plant Breeding; Rice Research Institute of Iran; Agricultural Research; Education and Ex Milling quality; Drying methods; Rheological properties; Whole kernel percentage; Viscosity.
Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3789
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