Dipping Solution Research Articles

Antilisterial efficacy of Lactobacillus bacteriocins and organic acids on frankfurters. Impact on sensory characteristics.

Dipping solutions containing bacteriocins produced by Lactobacillus curvatus CRL705 and Lactobacillus sakei CRL1862 (Bact705/1862), nisin and organic acids (lactic acid, LA; acetic acid, AA) were tested alone or in combination against Listeria monocytogenes inoculated by immersion on vacuum-packaged frankfurters stored at 10°C during 36days. LA/AA solution (2.5% v/v each) reduced pathogen population by 1.50 log10 CFU/ml during storage. Semi-purified Bact705/1862 prevented L. monocytogenes growth, while nisin was not able to avoid its regrowth after 20days. The combined addition of Bact705/1862+LA/AA was the most effective approach for pathogen reduction below detection level from day 6 to final storage. Frankfurters treated with Bact705/1862+LA/AA compared to fresh-purchased samples did not show significant differences in flavor, juiciness, color intensity and overall preference at 22days-storage at 5°C. Meat processors should not only validate the antimicrobial efficacy of combined treatments but also their sensory impact on the product, which is directly related to consumer acceptability.

ACTIVITY OF PHENOL OF Morinda citrifolia AS NATURAL ANTIBACTERIA TO INHIBIT THE GROWTH OF MASTITIS-ASSOCIATED BACTERIA

Most of dairy farmers less of attention about sanitation after milking. It can trigger a disease, mastitis. Mastitis is one of harmful disease in dairy cow, because it can decrease quality and quantity of milk. The aim of this study was to determine active compounds in the noni fruit extract, to measure the levels of phenolic compounds in different stage of fruit maturity and to know the result of California Mastitis Test (CMT) test between teat’s cow were dipped with noni fruit extract and commercial teat dipping solution containing 1.25% iodine (commercial). The highest level of phenols was presented in ripe noni fruit. Based on statistical analysis using One Way Anova followed by Duncan's test Multiply Range Test (DMRT), there were significant differences (P<0.05) in CMT test between teat’s cow were dipped in noni fruit extract and iodine 1.25% solution. Noni fruit extract solution showed better result than commercial dipping solution containing iodine. The conclusion is noni fruit extract contains natural antibacteria, it can be used to teat dipping solution.

Food Grade Pimenta Leaf Essential Oil Reduces the Attachment of Salmonella enterica Heidelberg (2011 Ground Turkey Outbreak Isolate) on to Turkey Skin.

Salmonella attached to the poultry skin is a major source of carcass contamination during processing. Once attached to the poultry skin, it is difficult to detach and inactivate Salmonella by commonly used antimicrobial agents since the pathogen is entrapped deeply in the feather follicles and the crevices on the skin. Essential oils could be natural, safe, and effective alternatives to synthetic antimicrobial agents during commercial and organic processing setup. The present study evaluated the efficacy of pimenta (Pimenta officinalis Lindl.) leaf essential oil (PEO), and its nanoemulsion in reducing Salmonella Heidelberg attachment on to turkey (Meleagris gallopavo) skin during simulated scalding (65°C) and chilling (4°C) steps in poultry processing. A multidrug resistant S. Heidelberg isolate from the 2011 ground turkey outbreak in the United States was used in the study. Results showed that PEO and the nanoemulsion resulted in significant reduction of S. Heidelberg attachment on turkey skin. Turkey skin samples treated with 1.0% PEO for 5 min resulted in >2 log10 CFU/sq. inch reduction of S. Heidelberg at 65 and 4°C, respectively (n = 6; P < 0.05). Similarly, skin samples treated with 1.0% pimenta nanoemulsion (PNE) for 5 min resulted in 1.5- and 1.8- log10 CFU/sq. inch reduction of S. Heidelberg at 65 and 4°C, respectively (n = 6; P < 0.05). In addition, PEO and PNE were effective in reducing S. Heidelberg on skin during short-term storage at 4 and 10°C (temperature abuse) (n = 6; P < 0.05). No Salmonella was detected in the dipping solution containing 0.5 or 1.0% PEO or PNE, whereas a substantial population of the pathogen survived in the control dipping solution. The results were validated using scanning electron -, and confocal - microscopy techniques. PEO or PNE could be utilized as an effective antimicrobial agent to reduce S. Heidelberg attachment to turkey skin during poultry processing.

Effect of anti-browning solutions on quality of fresh-cut fennel during storage

Fresh-cut fennel (Foeniculum vulgare Mill. subsp. vulgare var. azoricum cv. Orion) is a very perishable crop due to the browning that affects the cut-surface, especially on the stem portion of the slices. The occurrence of browning is the main cause of quality loss and decrease of visual acceptance of this product. In the present work the effectiveness of different anti-browning solutions (0.5% ethanol, 1% L-ascorbic acid, 0.5% L-cysteine at pH 7, 1% citric acid and 0.5% 4-hexylresorcinol) on maintaining quality characteristics of fresh-cut fennel during 6days at 5°C in air conditions were investigated. Results showed that dipping in solutions of citric acid, ascorbic acid, cysteine and 4-hexylresorcinol, did not result in substantial improvement of the appearance of fresh-cut fennels cut-surfaces compared to water control. Among all applied anti-browning solutions, dipping in 1% citric acid and 0.5% 4-hexylresorcinol produced a more severe browning than control, in both stem and sheath cut-surfaces. Dipping for 2min in 0.5% ethanol was effective in preserving visual quality of fresh-cut fennel stored in air for six days at 5°C, significantly reducing the browning in both stem and sheath cut-surface. In addition ethanol is a ‘generally recognized as a safe’ (GRAS) product and did not negatively influence the aroma of fresh-cut fennel. Based on these considerations, dipping in 0.5% ethanol for 2min could be a useful pretreatment for extending the shelf-life of fresh-cut fennel.

Preparation and characterization of new ceramic membranes for ultrafiltration

Low cost asymmetric membranes have been prepared from natural materials. The flat ceramic supports were elaborated from natural kaolino-illitic clay using olive pomace as a pore forming agent. The effect of sintering temperature and pore forming agent on the mechanical strength, porosity, pore size distribution and permeability were evaluated. It was observed that with the increase of sintering temperature, the mechanical strength and the median pore diameter increase while the porosity decreases. The effect of the use of olive pomace was noticeable; it improved the porosity and permeability of the elaborated supports. The optimal support was made with 40% by volume of olive pomace and sintered at 1000°C. Top layer was performed by dipping in an acid activated clay suspension. The effect of the percentage of solid content in the dipping solution was evaluated. It was noted that with the increase of the concentration of the dipping solution, the gaz permeability was slightly affected while the water flux presented a considerable variation. The optimal obtained membrane had gaz permeability of about 13.2cm3s−1cm−2bar−1 at a pressure of 1.5bar and water flux of 2219Lh−1m−2 at a pressure of 1bar.

Effect of microwave blanching and brine solution pretreatment on the quality of carrots dried in solar‐biomass hybrid dryer

The effect of microwave blanching time (0–3 min), followed by dipping in brine solution (sample to solution ratio 0–4) prior to drying of carrot slices and shreds in solar-biomass hybrid dryer on the final moisture content of the samples, drying rate, rehydration ratio, color change, textural firmness change, and beta carotene content was studied using two-factor 3 level factorial design. Pretreatment parameters were optimized using response surface methodology. As the microwave blanching time increased, there was an increase in the drying rate, rehydration ratio, and beta carotene content, with minimum changes in textural firmness, color, and final moisture content. Increase in brine solution to sample ratio impacted the drying rate and beta-carotene content in the samples, positively. Microwave blanching time of 3 min and brine solution to sample ratio of 2 were found to be the optimum pretreatment parameters for drying of carrot slices and shreds. Practical applications Solar energy is abundantly available in tropical countries like India and this renewable energy can be utilized to preserve food materials, economically. Carrots being seasonal in nature require be drying and preserving for further use during off seasons, and potential of a solar-biomass hybrid dryer can be tapped to reduce the energy requirement for a high energy requiring processing operation like drying. The study recommends pretreatments to carrot slices and shreds like dry microwave blanching, followed by brine solution dipping of carrot slices and shreds for better quality in terms of faster moisture removal leading to lower drying period, beta-carotene retention, better rehydration characteristics as compared to control samples, where no such pretreatments were given. This recommendation can be very well be utilized to reduce the energy demand in food processing industry.

The Effects of Pretreatment with Dipping Solution on Variation of Bos-calid Residue in Grape Samples During Drying Process with Natural Sunlight

Field experiments were carried out to investigate the variation of boscalid level during the drying period in grape samples that were pretreated and untreated with a dipping solution named POTAS prior to natural sunlight drying. Grape samples were collected at harvest and on the 3 rd , 7 th and 10 th days after harvest (during the drying process of the pretreated and untreated grapes). Initially, 360 different pesticides were scanned qualitatively by GC-MS and LC-MS/MS after QuEChERS (Quick, easy, cheap, effective, rugged and safe) extraction method and only boscalid was observed in grape samples. Consequently, study was concentrated on boscalid extraction and analysis. Boscalid residues were extracted and cleaned up using QuEChERS method. The analysis method shows a good linearity over the concentration range of 0.010-0.125 mg kg -1 with a correlation coefficient value of 0.998. Recoveries of the extraction and the analysis methods ranged from 74.8 to 100.8% within 0.7-1.7 % RSD at three different concentration levels. Detection and quantification limits were 0.77 and 2.55 µg kg -1 , respectively. The uncertainty of the method was calculated as 0.100±0.040 mg kg -1 . The results showed that grapes pretreated with the dipping solution prior to drying process showed shorter drying times and higher boscalid degradation rate than those untreated.

Functional Circuitry on Commercial Fabric via Textile-Compatible Nanoscale Film Coating Process for Fibertronics.

Fabric-based electronic textiles (e-textiles) are the fundamental components of wearable electronic systems, which can provide convenient hand-free access to computer and electronics applications. However, e-textile technologies presently face significant technical challenges. These challenges include difficulties of fabrication due to the delicate nature of the materials, and limited operating time, a consequence of the conventional normally on computing architecture, with volatile power-hungry electronic components, and modest battery storage. Here, we report a novel poly(ethylene glycol dimethacrylate) (pEGDMA)-textile memristive nonvolatile logic-in-memory circuit, enabling normally off computing, that can overcome those challenges. To form the metal electrode and resistive switching layer, strands of cotton yarn were coated with aluminum (Al) using a solution dip coating method, and the pEGDMA was conformally applied using an initiated chemical vapor deposition process. The intersection of two Al/pEGDMA coated yarns becomes a unit memristor in the lattice structure. The pEGDMA-Textile Memristor (ETM), a form of crossbar array, was interwoven using a grid of Al/pEGDMA coated yarns and untreated yarns. The former were employed in the active memristor and the latter suppressed cell-to-cell disturbance. We experimentally demonstrated for the first time that the basic Boolean functions, including a half adder as well as NOT, NOR, OR, AND, and NAND logic gates, are successfully implemented with the ETM crossbar array on a fabric substrate. This research may represent a breakthrough development for practical wearable and smart fibertronics.

Influence of dipping cycles on physical, optical, and electrical properties of Cu2NiSnS4: Direct solution dip coating for photovoltaic applications

Direct solution coating technique has emerged as a promising economically viable process for earth abundant chalcogenide absorber materials for photovoltaic applications. Here, direct ethanol based dip coating of earth abundant Cu2NiSnS4 (CNTS) films on soda lime glass (SLG), molybdenum coated glass (Mo), and fluorine doped tin oxide coated glass (FTO) substrates is investigated. The structural and morphological properties of pre-annealed and sulfurized CNTS films coated on SLG, FTO, and Mo substrates are reported. The influence of dipping cycles on composition and optoelectronic properties of pre-annealed and sulfurized CNTS films deposited on SLG substrate is presented. Energy dispersive spectroscopy (EDS) and X-ray fluorescence (XRF) analysis reveal how changes in thickness and elemental composition affect morphology and optoelectronic properties. The obtained absorption coefficient, optical bandgap, resistivity and mobility of pre - annealed and sulfurized films are found to be 104 cm−1, 1.5 eV, 0.48 Ωcm, 3.4 cm2/Vs and 104 cm−1, 1.29 eV, 0.14 Ωcm, 11.0 cm2/Vs, respectively. These properties are well suited for photovoltaic applications and lead to the conclusion that the direct ethanol based dip coating can be an alternative economically viable process for the fabrication of earth abundant CNTS absorber layers for thin film solar cells.

Reduced TiO2 nanoflower structured photoanodes for superior photoelectrochemical water splitting

Ti3+ self-doped flower-like TiO2 nanostructure was fabricated via a one-step hydrothermal method following with dipping in NaBH4 aqueous solution. The reduced TiO2 nanoflowers (NFs) were used to work as the photoanodes for photoelectrochemical (PEC) water splitting. Compared with the pure TiO2 NFs, the photocurrent density of the reduced TiO2 NFs is distinctly higher, demonstrating a promising PEC activity. The improvement of the PEC performance is owing to the introduction of oxygen vacancies. On one hand, the induced oxygen vacancies narrow the bandgap and extend the visible response, and thus produce more photoexcited carriers. On the other hand, the electrochemical impedance spectra (EIS) analysis indicates the enhanced charge separation and transport at the interface between the photoanode and the electrolyte, which is caused by the upward shift of the Fermi level facilitating the charge separation at electrode/electrolyte interface. Large scale production may be possible based on this low-cost and facile synthesis with better PEC performance.

Relationship between Young's Modulus and Film Architecture in Cellulose Nanofibril-Based Multilayered Thin Films.

Young's moduli of cellulose nanofibril (CNF)-poly(allylamine hydrochloride) (PAH) multilayered thin films were measured using strain-induced elastic buckling instability for mechanical measurements (SIEBIMM) and the quantitative nanomechanical mapping technique (PF-QNM). To establish the relationship between structure and mechanical properties, three types of films with various architectures were built using the layer-by-layer method by changing the ionic strength of the dipping solution. Both methods demonstrate that the architecture of a film has a strong impact on its mechanical properties even though the film has similar cellulose content, emphasizing the role of the architecture. Films with lower porosity (Φair = 0.34) and a more intricate network display the highest Young's moduli (9.3 GPa), whereas others with higher and similar porosity (Φair = 0.46-0.48) present lower Young's moduli (4.0-5.0 GPa). PF-QNM measurements indicate a reverse ranking that is probably indicative of the surface composition of the films.

Combination of strategies to supply calcium and reduce bitter pit in ‘Golden Delicious’ apples

Calcium (Ca) sprays and Ca applications to soil throughout the growing season or Ca solution dips at post-harvest are widespread practices to supply Ca and decrease bitter pit in apples. However, published results conflict, and there is no information about the effectiveness of combining all these treatments. In the present study, the following treatments were assessed during four growing seasons: early-season (April) Ca soil applications applied 4 times, mid-season (May) CaCl2 sprays applied 7 or 13 times, late-season (June) CaCl2 sprays applied 7 times, and the combination of late-season sprays and soil applications. In addition, post-harvest dips were evaluated in the latter two growing seasons. Notably high bitter pit incidences were monitored for the first and fourth year of study (>20%), while the second and third year were almost without incidence. Post-harvest dips mitigated bitter pit incidence to a greater extent than pre-harvest treatments, and the sprays mitigated bitter pit to a greater extent than Ca soil applications. The combination of sprays and soil applications did not improve the results relative to Ca sprays alone. No detectable advantage for starting spray programmes earlier than June was observed. Our results showed a trend towards reduced bitter pit with an increasing number of CaCl2 sprays, but this was not clearly an effect of maximizing fruit Ca. Finally, applying 13 CaCl2 sprays in combination with a Ca solution dip at post-harvest appeared to be the most effective practice for minimizing the risk of bitter pit development.

Fault geometry of 2015, Mw7.2 Murghab, Tajikistan earthquake controls rupture propagation: Insights from InSAR and seismological data

Combining space-based geodetic and array seismology observations can provide detailed information about earthquake ruptures in remote regions. Here we use Landsat-8 imagery and ALOS-2 and Sentinel-1 radar interferometry data combined with data from the European seismology network to describe the source of the December 7, 2015, Mw7.2 Murghab (Tajikistan) earthquake. The earthquake reactivated a ∼79 km-long section of the Sarez–Karakul Fault, a NE oriented sinistral, trans-tensional fault in northern Pamir. Pixel offset data delineate the geometry of the surface break and line of sight ground shifts from two descending and three ascending interferograms constrain the fault dip and slip solution. Two right-stepping, NE-striking segments connected by a more easterly oriented segment, sub-vertical or steeply dipping to the west were involved. The solution shows two main patches of slip with up to 3.5 m of left lateral slip on the southern and central fault segments. The northern segment has a left-lateral and normal oblique slip of up to a meter. Back-projection of high-frequency seismic waves recorded by the European network, processed using the Multitaper-MUSIC approach, focuses sharply along the surface break. The time progression of the high-frequency radiators shows that, after a 10 second initiation phase at slow speed, the rupture progresses in 2 phases at super-shear velocity (∼4.3–5 km/s) separated by a 3 second interval of slower propagation corresponding to the passage through the restraining bend. The intensity of the high-frequency radiation reaches maxima during the initial and middle phases of slow propagation and is reduced by ∼50% during the super-shear phases of the propagation. These findings are consistent with studies of other strike-slip earthquakes in continental domain, showing the importance of fault geometric complexities in controlling the speed of fault propagation and related spatiotemporal pattern of the high-frequency radiation.

Preparation and application of a new catalyst to produce bio-oil from microalgae liquefaction

In this study, hydrothermal catalytic liquefaction method was adopted to produce bio-oil from microalgae. The influence of supported Ni-Catalysts doped neodymium (Nd) on the bio-oil yield from microalgae liquefaction was investigated, aiming to find the optimal preparation procedure of bio-oil. It proved that under the condition of a temperature of 270°C and a reaction period of 30 min, the bio-oil yield of hydrothermal catalytic liquefaction of spirulina powder could reach 55.1% by means of the catalyst prepared with 1 mol/L neodymium nitrate as the dipping solution after a calcination for 4 h at 800°C. In addition, the characterization on catalyst was discussed in this research. Keywords: catalyst, bio-oil, microalgae, catalytic liquefaction, spirulina powder DOI: 10.3965/j.ijabe.20171001.2599 Citation: Wang Y P, Nan G, Wang W J, Zhang J L, Han W. Preparation and application of a new catalyst to produce bio-oil from microalgae liquefaction. Int J Agric & Biol Eng, 2017; 10(1): 169–175.

等离子喷涂制备疏水涂层的防腐性能研究

本论文的目的是在Q235基底上制备具有好的疏水性及优秀防腐性的Al2O3和TiO2复合涂层。采用等离子喷涂技术在Q235基底上先喷NiFe中间过度层然后制备Al2O3和TiO2复合涂层并通过扫描电子显微镜、接触角测量仪、盐雾腐蚀箱和电化学工作站测量该复合涂层的表面形貌、接触角值、防腐蚀性和阻抗谱。利用等离子喷涂制备涂层并浸入到十四酸的溶液中进行处理，使涂层表面的静态接触角提高到129˚，利用盐雾腐蚀实验处理和自然海水浸泡后该涂层表面未发现明显的改变，因此，经十四酸处理的疏水涂层具有很好的防腐效果。 Purpose of this paper was to prepare Al2O3-TiO2 coating on Q235 substrate that has good hydro-phobic nature and outstanding corrosion resistance. The Al2O3-TiO2 coating with Ni-Fe intermediate layer were prepared on Q235 alloy surface using plasma spraying technology, and then the coating is characterized by using SEM (scanning electron microscope), contact angle measurement, salt fog corrosion chamber and electro chemical work station to measure the surface morphology, contact angle corrosion resistance and impedance spectroscopy of coating. Coating prepared by plasma spraying and dipping in the aqueous solutions of dodecanoic acid(ASD) for processing can make the static contact angle increase to 129˚, the change in surface morphology for ASD is not obvious after immersing in the nature sea water and storing in salt fog conditions. This indicated good corrosion resistance of the ASD coating.

溶液浸せき法によるスズ系金属表面へのトリアジントリチオールの吸着

スズ（Sn）系金属表面にトリアジントリチオール（1,3,5-Triazine-2,4,6-trithiol：TTCA）を，溶液浸せき法により吸着させる条件について研究した。TTCAが互変異性構造をもつことから溶媒のプロトン供与性に着目した。非プロトン性溶媒であるジメチルフォルムアミド（DMF）やN-メチルピロリドン（NMP）溶液中では吸着されにくいが，プロトン供与性溶媒であるメチルアルコール（MeA）やエチレングリコールモノブチルエーテル（EGMBE）溶液中では容易に表面吸着することを新たに見いだした。Sn表面は還元性プラズマ処理をしても空気中で容易に酸化膜を形成するが，プロトン供与性溶媒中では酸化物の酸素が脱離して金属とチオールとの結合によって表面に吸着し，さらにTTCAがジスルフィド結合によって表面に積層されていくことをXPS分析により明らかにした。塗料用溶剤などで使用されているMeAやEGMBEを使用して，浸せき法により金属表面をTTCAで簡便に機能化することが可能となった。

Ink-jet printed highly conductive pristine graphene patterns achieved with water-based ink and aqueous doping processing

We report an efficient inkjet printing of water-based pristine GNPs graphene ink and a facile aqueous halogen doping process that provides significant and thermally stable conductivity enhancement of printed patterns. Highly concentrated aqueous graphene ink populated by few-layer pristine graphene flakes is obtained by means of scalable shear exfoliation process with the aid of bromine intercalation. The as-printed GNP films which has been merely treated by drying at 100 °C exhibits DC conductivity (σDC) of ∼1400 S/m likely due to bromine doping effect. This value is significantly increased to ∼3 × 104 S/m when an additional treatment by means of dipping in aqueous iodine solution is applied prior to the drying. As contrast, σDC is increased to ∼2.4 × 104 S/m when a mere annealing at elevated temperature in air is employed. When the aqueous iodine doping process and annealing at elevated temperature is combined, an unprecedented value of σDC ∼105 S/m is achieved. The availability of water-based GNPs inks and low-temperature doping scheme for efficient and reliable conductivity enhancement has offered a pathway for the application of GNPs in different printed electronics devices.

Novel chitosan-sulfonated chitosan-polycaprolactone-calcium phosphate nanocomposite scaffold

New bioactive nanocomposite scaffolds from chitosan, sulfonated chitosan, and poly(ε-caprolactone) nanofibers were prepared. In this study, sulfonated chitosan was prepared using chlorosulfonic acid and combined with chitosan in order to improve the bioactivity of chitosan-based scaffolds. Meanwhile, different amounts of chopped-hydrophilic PCL nanofibers were incorporated into the fabricated scaffold in order to mimic extracellular matrix-like structure. In the end, apatite formed on/in the composite scaffolds through alternate dipping in calcium and phosphate rich solutions. The morphology, apatite forming ability, and mechanical properties of the scaffolds were evaluated. The results indicated that larger pore sizes, higher porosity and apatite deposition are obtained as a result of adding more PCL nanofibers. Contrary to the effects of increased pore size, addition of PCL nanofibers enhanced the mechanical properties. Cell culture experiments with osteoblast-like cells on the scaffolds demonstrated that incorporation of PCL nanofibers into the fabricated scaffolds improves cell viability and attachment.

Efficacy testing of teat dip solutions used as disinfectants for the dairy industry: Antimicrobial properties

The production of raw milk containing a limited number of bacterial contaminants, which retains its quality during storage, is the major task of the dairy industry. This can only be achieved with adequate regular cleaning and disinfection of the udder, milking equipment, the dairy parlour and animal housing areas. Studies were conducted to assess the efficacy of a range of dairy disinfectants on bacterial species isolated from cow udders as well as reference microbial strains (ATCC). Testing included the assessment of bacterial growth inhibition, biofilm inhibition or bacterial susceptibility to disinfection treatment. Findings show that Lir Analytical chemical disinfectants proved highly successful at inactivating a range of Gram‐positive (Bacillus, Enterococcus, Aeromonas) and Gram‐negative (Escherichia coli, Pseudomonas, Micrococcus) organisms, with up to 99.9% inactivation achieved. Additionally, test chemicals provided significant levels (P &lt; 0.05) of biofilm inhibition for a number of test species. Furthermore, it was found that bacterial isolates from cow udders proved more sensitive to the test chemicals than their reference counterparts.

Influence of vacuum and Ar/CdS atmospheres-rapid thermal annealing (RTA) on the properties of Cd2SnO4 thin films obtained by sol-gel technique

Transparent conducting oxides are electrical conductive materials with low absorption of light. In recent years, considerable attention has been paid to ternary oxides such as CdIn2O4, Zn2SnO4, ZnGa2O4, and Cd2SnO4. In present work, Cd2SnO4 thin films were deposited via dip-coating; dipping solution was synthesized by sol-gel technique from the mixture of CdO and SnO2 precursor solutions. The films were obtained with 7 layers (~260nm) on Corning glass substrates. Each coating was deposited at a withdrawal speed of 2cm/min, dried at 100°C for 1h, and then sintered at 550°C for 1h in air. The films were subjected to rapid thermal annealing (RTA) treatments at an annealing temperature of 600°C for 5s, under two different atmospheres: vacuum and Ar/CdS (varying Ar pressure inside the chamber from 50 to 200Torr). X-Ray diffraction patterns showed that all the annealed films were constituted mainly by Cd2SnO4 crystals with a very low presence of CdSnO3. All the films showed a high optical transmittance (above 80%) in the UV–Vis region. A slight decrease of transmittance occurs in the near infrared region for RTA films, but it is not as pronounced as the one observed when these films are treated using conventional annealing. The minimum resistivity value obtained was 2.87×10−3Ωcm (1.1×102Ω/□) corresponding to RTA films in vacuum. Electrical and optical properties of the films analyzed in present study make them attractive as electrodes for solar cells, with the advantage of requiring very short annealing times.