1. Polymers for Food Applications Bharathi Vimala, J. Moses, C. Anandharamakrishnan CrossRef

The effect of supports such as silica, alumina, amorphous aluminosilicate and magnesia on the activity heteropoly acids (HPA) for reactions requiring strong very acid sites has been studied. It found that 12-tungstophosphoric (HPW) mounted alumina silica catalyses cumene cracking at 150 °C, with conversion ca. 90%, toluene disproportionation temperatures low 250 °C. catalytic performance increased increasing HPA content reached its maximum in loading range 38–50 wt.%. With > 38 wt.% HPW 60...

Abstract Results of preliminary investigations the preservation elemi (E) and peppermint (M) oils in a maltodextrin microcapsule during spray drying emulsion laboratory dryer are discussed. The ratio to water was 30:70, content each oil 10, 20, 30 wt·% relation maltodextrin. Product quality results process were estimated on basis microscopic features powder (the shape size microparticles) its density, moisture vapor sorptivity. efficiency encapsulation by specifying essential product....

This paper describes the effects of spray drying temperature and wall materials on functional properties kaffir lime oil microcapsules. The were studied at inlet air temperatures 160, 180, 200°C. Two coating (konjac glucomannan gum arabic) employed in this study. results indicate that had antibacterial activity against all tested pathogens was able to inhibit Vibrio cholerae comparable a standard antibiotic. combination konjac arabic (KGM+GA) can enhance yield retention total microcapsules...

Black chokeberry (Aronia melanocarpa) juice and wine with high polyphenol contents were spray-dried using three types of coating material: maltodextrin, a mixture maltodextrin Arabic gum hydroxypropyl-β-cyclodextrin. The microstructure physiochemical properties the powders systematically evaluated compared. degradation kinetics polyphenols antioxidant stability in microencapsulated preparations from studied over 12 months under different storage conditions (8C, 25C light darkness). Results...

This study examines the performance of a parabolic greenhouse-type solar dryer used for drying cayenne pepper (Capsicum annuum) in Nan (northern Thailand). The has base area 6.0 m × 8.2 and height 3.25 with loading capacity 100–200 kg fruit or vegetables. It roof structure covered polycarbonate sheets is placed on concrete floor. ventilated by three DC fans powered 50-Watt cell module. produce trays wire mesh located steel supports. Among advantages this type that product protected from...

As a result of spray drying multicomponent aqueous solution maltodextrin and natural peppermint oil, the powdery product microencapsulation was obtained. The powder characterized by water vapor sorption properties. Temperatures in range from 15 to 35°C had no effect on isotherms contrast mass share essential oil microcapsules, where an increase notably shifts equilibrium curve down. coefficients GAB model heat were calculated correlated as function product.

ABSTRACT High energy consumption and increasing consumers interest in new products are two problems worthy of note the drying food. Difficulties producing high-quality food degrading transformations material during mentioned. The kinetics quality degradation due to is described. role water activity maintaining product emphasized. Examples methods tendencies toward a reduction dried shown. Keywords: fooddegradation kineticsdryersdryingqualitywater

ABSTRACT Sludge wastes are a very attractive source of many valuable compounds such as nitrogen, phosphorus and organic matter. One the interesting methods sludge utilization is dewatering drying. In this paper some problems drying two types different form origin presented. sludges—a brewery by-product— contains spent grain suspension brewer's yeast diatomaceous earth. The second one by-product biotechnological process which mainly lime, protein, microelements microorganisms. Moisture...

Abstract The characteristics of concurrent spray dried chitosan microgranules are presented in this article. investigated parameters were four chemical compositions solutions subjected to drying produce with different structures and compositions. analysis product included shape, size, density, porosity, moisture content, solubility water. results show the possibilities applying spray-drying formation required physicochemical properties.

The aim of the study was to determine effect soil-maltodextrin (MDX) and MDX microencapsulated essential oils (EOs, 12%) peppermint (Mentha × piperita L.), caraway (Carum carvi L.) or calamus (Acorus at various doses (0.75, 1.5 3 g/pot), on initial growth maize (Zea mays barnyard grass [Echinochloa crus-galli (L.) P. Beauv.] lambsquarters (Chenopodium album L.). results a pot experiment showed strongest inhibitory studied plants alone. Both EOs decreased relative chlorophyll content leaves...

The quality of eggs is tightly associated with freshness. New possibilities for the determination egg freshness were studied. volatile compounds and their changes during storage followed. Three methods extraction volatiles compared: dynamic headspace (Purge Trap), static (Solid Phase Microextraction - SPME) according to Likens-Nickerson by simultaneous distillation-extraction (SDE) diethyl ether as organic solvent. extracts analysed GC/FID. in an extract obtained SDE method identified GC-MS....

Abstract: Within this study, main odorants of marjoram and thyme (linalool thymol) were determined in spices microencapsulated powders using solid‐phase microextraction (SPME). Analyses conducted on selected batches before after decontamination prepared for technological purposes (improvement aroma decontaminated spices). Conditions SPME analyses individual compounds matrices. Determination total surface contents the percentage dependencies between encapsulated made it possible to identify...

Tyrosine was oxidised with either potassium peroxodisulphate or glyoxal. Volatile reaction products were isolated and analysed by GC/FID GC/MS, derivatised diazomethane the same methods. Eight identified. The major expected Strecker aldehyde (4-hydroxyphenylacetaldehyde) its lower homologue 4-hydroxybenzaldehyde. They followed 1-(4-hydroxyphenyl)-3-propionaldehyde, phenylacetaldehyde, benzaldehyde, phenol, 4-hydroxybenzoic, benzoic acid. Analogously, oxidation of 3,4-dihydroxyphenylalanine...

The paper presents a research monitoring platform implemented for the Sulejow dam reservoir located in Central Poland; goal was to assess quality status of reservoir's waters during vegetation season 2015.Article results mobile field measurements together with laboratory analyses biogenic parameters, order provide broad picture changes water analysed period.Changes were evaluated based on following parameters: chlorophyll a, ammonium ions, pH, temperature, blue-green algae concentration,...

Abstract The paper presents methodology of accurate mobile measurements water quality parameters such as temperature, dissolved oxygen, chlorophyll “a” concentration, ammonium ion conductivity, pH and blue-green algae content in water. (probe EXO 2, YSI, USA) were made on various depths probe immersion (1.5, 2.5 3.5 m) at different towing speeds the (approx. 5.4 9.0 km/h). Static carried out same route provided reference values for motion to compare repeatability static methods. tests also...