19 results on '"Dehghannya J"'
Search Results
2. Investigation of oil uptake during potato strips deep-fat frying pretreated with ultrasound and osmotic dehydration.
- Author
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Abedpour, L. and Dehghannya, J.
- Subjects
- *
FRYING , *DEHYDRATION reactions , *OSMOSIS , *FOOD quality research , *SENSORY evaluation - Abstract
By changing consumers' tendency to use low-fat healthy food products, reducing oil content in fried foods by maintaining sensory quality is inevitable. In this study, ultrasound pretreatment at two frequencies of 20 and 40 kHz for 15 minutes as well as osmotic dehydration pretreatment using 2 and 4% salt solution concentration for 3 hours applied on the potato pieces and then deep-fat frying was performed at 150, 170 and 190°C for 60, 120, 180 and 240 seconds. The effect of the pretreatments on oil uptake and sensory characteristics were analyzed. To optimize and improve process equipment and frying conditions, oil uptake in potato pieces pretreated with ultrasound and osmotic dehydration was also investigated. Oil uptake in the fried potato pieces was significantly decreased (P<0.05) using osmotic dehydration pretreatment. The use of ultrasound together with osmotic dehydration, led to further reduction in oil uptake compared to the other samples. Proposed experimental models in this study fitted well with experimental data. In addition, osmotic dehydration and its combination with ultrasound pretreatment improved sensory characteristics of the fried potato slices. [ABSTRACT FROM AUTHOR]
- Published
- 2016
3. Simultaneous Aerodynamic and Thermal Analysis during Cooling of Stacked Spheres inside Ventilated Packages
- Author
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Dehghannya, J., primary, Ngadi, M., additional, and Vigneault, C., additional
- Published
- 2008
- Full Text
- View/download PDF
4. Osmotic Dehydration of Apple Slices with Carboxy-Methyl Cellulose Coating
- Author
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Dehghannya, J., primary, Emam-Djomeh, Z., additional, Sotudeh-Gharebagh, R., additional, and Ngadi, M., additional
- Published
- 2006
- Full Text
- View/download PDF
5. Assessment of Osmotic Process in Combination with Coating on Effective Diffusivities during Drying of Apple Slices.
- Author
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Emam-Djomeh, Z., Dehghannya, J., and Sotudeh Gharabagh, R.
- Subjects
- *
OSMOSIS , *DIFFUSION , *DRYING , *CELLULOSE , *DEHYDRATION , *SALT , *GLUCOSE - Abstract
The effect of carboxymethyl cellulose (CMC) coating on the mass exchanges during the osmotic dehydration of apples and its effect on the quality of final product were studied. Coating semi-rings of apple with CMC solution (1%) was found to prevent solute uptake and to reduce salt diffusion coefficient from 4.35 × 10-10 m²/s to 2.86 × 10-10 m²/s. However, coating did not significantly affect the diffusivity of water. The effective diffusivity of salt and consequently solids gain were found to be depended on the concentration of CMC solution in the range of 0-1%. Increasing the concentration of CMC further from 1% had no effect on the mass exchanges during the osmotic process. Maximum performance ratio, defined as water loss/solids gain, and the lowest solids diffusion was observed for coated samples (with 1% CMC solution) treated with an osmotic solution containing glucose syrup (50%) and NaCl (2%). [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
6. Production of green banana powder using foam-mat drying method: Effects of ovalbumin concentration on drying kinetics and physicochemical properties of the product
- Author
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Kamali, R., Saeed Dadashi, Dehghannya, J., and Ghaffari, H.
7. Development and characterization of kefiran-gelatin bio-nanocomposites containing Zhumeria majdae essential oil nanoemulsion to use as active food packaging in sponge cakes.
- Author
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Hasheminya SM and Dehghannya J
- Abstract
Active packaging films based on kefiran-gelatin were developed and characterized using Zhumeria majdae essential oil nanoemulsion (ZMEO-NE) at concentrations of 0 (control), 1, 2 and 3 %. The main compounds of the essential oil (EO) of Zhumeria majdae (ZM) plant were linalool (61.44 %) and camphor (20.67 %). Adding the ZMEO-NE to the films decreased permeability to water vapor (from 7.82 × 10
-7 to 4.09 × 10-7 g·m/m2 ·Pa·h), ultimate tensile strength (from 38.44 to 33.48 MPa), percentage of light transmission, and increased thickness (from 0.085 to 0.121 mm), opacity (from 2.11 to 2.79), and elongation at break (from 19.97 to 34.73 %), and changed color parameters. The establishment of hydrogen bonds between the ZMEO-NE and polymer network was confirmed. The ZMEO-NE decreased the storage modulus and glass transition temperature. Distinct variations in the films' surface morphology and a reduction in the crystalline structure were observed due to the presence of the ZMEO-NE. Elevating the concentration of the ZMEO-NE increased antioxidant capabilities of the films. The films incorporating the ZMEO-NE exhibited notable antibacterial efficacy against Staphylococcus aureus (reductions ≥4 log CFU/cm2 ) and Escherichia coli (reductions ≥2 log CFU/cm2 ) bacteria. The films also demonstrated suitable antifungal properties during storage of sponge cakes for 16 days., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
- Full Text
- View/download PDF
8. Development of basil seed mucilage (a heteropolysaccharide) - Polyvinyl alcohol biopolymers incorporating zinc oxide nanoparticles.
- Author
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Hasheminya SM, Dehghannya J, and Ehsani A
- Subjects
- Polyvinyl Alcohol chemistry, Polysaccharides analysis, Biopolymers analysis, Anti-Bacterial Agents chemistry, Seeds chemistry, Ocimum basilicum chemistry, Zinc Oxide chemistry, Nanoparticles chemistry
- Abstract
The effect of zinc oxide nanoparticles (ZnONPs) on various properties of basil seed mucilage (a heteropolysaccharide)-polyvinyl alcohol (BSM-PVA) films was investigated. Increasing concentration of ZnONPs in BSM-PVA films reduced moisture content (from 24.73 to 17.09 %), water solubility (from 36.36 to 27.65 %), water vapor permeability (from 4.66 × 10
-7 to 2.55 × 10-7 g·m/m2 ·Pa·h), oxygen permeability (from 2.96 to 2.13 cm3 μm/m2 d kPa), and elongation at break (from 40.34 to 29.44 %), and increased ultimate tensile strength (from 16.81 to 21.48 MPa). Color and light transmission were affected by ZnONPs concentrations. The lack of formation of new peaks, along with the displacement of peaks, indicated the formation of hydrogen bonds between ZnONPs and the film matrix. Dynamic mechanical-thermal analysis showed that storage modulus and glass transition temperature increased with the concentration of ZnONPs. Scanning electron microscopy images illustrated that the addition of ZnONPs improved film integrity. X-ray diffraction pattern showed that the crystal shape of nanoparticles was preserved in the film matrix. Films containing ZnONPs showed good antibacterial activity against Staphylococcus aureus (reductions ≥ 3 log CFU/cm2 ) and Escherichia coli (reductions ≥ 4 log CFU/cm2 ). Films containing ZnONPs also showed a suitable antifungal activity during the storage of wheat bread., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)- Published
- 2023
- Full Text
- View/download PDF
9. Influence of processing temperature on production of red beetroot powder as a natural red colorant using foam-mat drying: Experimental and modeling study.
- Author
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Bahriye G, Dadashi S, Dehghannya J, and Ghaffari H
- Abstract
With high medicinal and nutritional value, red beetroot powder is utilized as a natural pigment and functional additive in various food industries. In this investigation, red beetroot powder was produced using foam-mat drying, and the effect of drying temperature on quality attributes was evaluated. Computer simulation was also performed to assess the impact of temperature on uniformity of moisture loss and temperature during drying. Temperature variations did not exert a significant impact on water solubility and total color difference of the powders. Images obtained from field emission scanning electron microscopy illustrated that with increasing temperature, wrinkling, cracking, and roughness of the powder particles reduced because of the formation of smooth and hard crusts on the particles' surface. Predicted moisture content values were in good agreement with measured data. The results of this study could be used to optimize foam-mat drying of red beetroot to produce functional powders with suitable physicochemical and microstructural characteristics., Competing Interests: The authors declare that there is no conflict of interest., (© 2023 The Authors. Food Science & Nutrition published by Wiley Periodicals LLC.)
- Published
- 2023
- Full Text
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10. Effect of combined convective hot air and far-infrared radiation on physic-chemical aspects of black raspberry powder produced by foam mat method.
- Author
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Ershadfarkar M, Dadashi S, Dehghannya J, and Khakbaz Heshmati M
- Abstract
In recent years the use of hybrid drying methods has been noticed because of the improvement of the dried products quality. The effect of infrared (IR) power (0, 400, 600, and 800 W) in combination with convective hot air (60 °C, 3 m/s) on the quality properties of black raspberry pulp during foam mat drying was investigated in this study. According to the findings, increasing the IR power, (IR-CHA) had no effect on the moisture content, moisture ratio, or drying rate of the product; however, the effective moisture diffusion coefficient (D
eff ) was significantly increased. The effect of IR power on the physicochemical properties of black raspberry powder revealed that combining infrared with convective hot air (IR-CHA) improved the powder's flowability and total polyphenol content while decreasing its moisture content (p < 0.05). Furthermore, FESEM images revealed that the increase in IR power resulted in particles with smooth surfaces., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2023 The Authors.)- Published
- 2023
- Full Text
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11. Investigation of microwave application time with constant pulse ratio on drying of zucchini.
- Author
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Dehghannya J, Farhoudi S, and Dadashi S
- Abstract
Since nonuniform drying in the continuous microwave harms the safety and quality of dried food materials, a significant quality improvement can be achieved by controlling the application time of the microwave. This study aimed to investigate the influence of microwave application time and power at a constant pulse ratio during the drying of zucchini on different product characteristics. The samples were first exposed to microwaves with powers of 360, 600, and 900 W alternately for 10, 30, and 50 s. After drying with intermittent microwaves, the process was continued using the hot-air drying. Increasing the microwave application time and power caused a significant reduction in the total process time. The minimum drying time was obtained at 900 W and 50 s (259.44 min). D
eff increased significantly by 24.4% and 34.1% with increasing application time and power, respectively. The highest shrinkage and bulk density were observed in the samples dried at 360 W and 10 s due to a longer total process time than the other treatments. Rehydration increased by 10.3% and 14.7% with increasing application time and power, respectively. A 33% decrease in energy consumption was noticed in the 900 W-50 s treatment compared to the 360 W-10 s treatment. Moreover, with increasing microwave application time and power, the lightness of the dried product decreased, and the total color difference increased. In summary, the 900 W power and 50 s application time produced a better-dried product than the other treatments considering different quantitative and qualitative properties. The results of this research can be used in the food industry to dry products using microwave and hot air to control and improve their quality., Competing Interests: The authors declare that there is no conflict of interest., (© 2023 The Authors. Food Science & Nutrition published by Wiley Periodicals LLC.)- Published
- 2023
- Full Text
- View/download PDF
12. Photo-catalytic and biotic degradation of polystyrene packaging film: Effect of zinc oxide photocatalyst nanoparticles and nanoclay.
- Author
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Fakhri LA, Ghanbarzadeh B, Dehghannya J, Hosseini M, and Dadashi S
- Subjects
- Polystyrenes, Spectroscopy, Fourier Transform Infrared, Nanocomposites, Nanoparticles, Zinc Oxide
- Abstract
Synergistic effect of zinc oxide nanoparticles (ZnO-NPs) as photocatalyst and organonanoclay (ONC) as biodegradable promoter on the degradation of polystyrene (PS) film was investigated. The films were exposed to ultraviolet irradiation under ambient air at room temperature for photo-catalytic degradation and then submitted to biodegradation test in soil using respirometric procedure. Fourier-transform infrared and ultraviolet-visible spectroscopy, thermogravimetric analysis, colorimeter technique, contact angle measurement, and the carbon dioxide evolution results showed higher photo- and biodegradation efficiency of PS-ONC-ZnO nanocomposite compared to the neat PS, PS-ONC and PS-ZnO nanocomposites. Thermal stability, optical band gap, and water contact angle of photo-degraded PS-ONC-ZnO nanocomposite decreased by 11.37, 18.33 and 63.99%, respectively, while that of PS film was only 6.20, 6.44 and 5.84%, respectively. The photo-degraded PS-ONC-ZnO and PS-ZnO film indicated a biodegradation percentage value of 3.3 and 2.1%, respectively, over 16 weeks of incubation in soil. The possible degradation mechanism of nanocomposites was briefly discussed., (Copyright © 2021. Published by Elsevier Ltd.)
- Published
- 2021
- Full Text
- View/download PDF
13. Development and characterization of novel edible films based on Cordia dichotoma gum incorporated with Salvia mirzayanii essential oil nanoemulsion.
- Author
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Hasheminya SM and Dehghannya J
- Subjects
- Anti-Bacterial Agents chemistry, Antioxidants chemistry, Food Packaging, Free Radical Scavengers, Hydrogen Bonding, Listeria monocytogenes drug effects, Microbial Sensitivity Tests, Microscopy, Electron, Permeability, Solubility, Spectroscopy, Fourier Transform Infrared, Steam, Temperature, Tensile Strength, Cordia metabolism, Edible Films, Emulsions chemistry, Nanoparticles chemistry, Oils, Volatile metabolism, Salvia metabolism
- Abstract
Salvia Mirzaiani essential oil (SMEO) was extracted using hydrodistillation and its GC-MS analysis identified 54 compounds. SMEO nanoemulsion (SMEO-NE) was produced using ultrasound. Then, gum-based films extracted from Cordia dichotoma containing SMEO-NE were prepared at concentrations of 0 (control), 1, 1.5 and 2% (v/v). Addition of SMEO-NE increased thickness, contact angle and elongation at break of the films. It decreased moisture content, water solubility, ultimate tensile strength, water vapor permeability, percentage of light transmission in the visible and ultraviolet range with a significant change in color factors. Formation of new hydrogen bonds between SMEO-NE and film matrix was confirmed by FTIR. Besides, dynamic mechanical-thermal analysis showed a decrease in storage modulus and glass transition temperature of the films. Electron microscope images showed that presence of SMEO-NE led to changes in microstructure of the films. Furthermore, increasing the concentration of SMEO-NE increased antioxidant and antibacterial activity of the films., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
14. The effect of Macro and Nano-emulsions of cinnamon essential oil on the properties of edible active films.
- Author
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Fattahi R, Ghanbarzadeh B, Dehghannya J, Hosseini M, and Falcone PM
- Abstract
The effect of Nano-emulsion (NE) and Macro-emulsion (ME) of cinnamon essential oil (CEO) on the properties of carboxymethyl cellulose (CMC)-based films was investigated. MEs (diameters of 242-362 nm) and NEs (diameters of 59-80 nm) of CEO were produced through Ultra-Turrax and Ultrasonication, respectively. The scanning electron microscopy ( SEM ) and atomic force microscopy (AFM) images showed different morphologies in the films containing ME and NE, also a denser and more uniform microstructure was observed in the NE films in comparison with the ME ones. The higher stability of NE in the CMC matrix, increased the thickness of the resulted films. The water vapor permeability (WVP) was increased from 2.59 × 10
-9 g/ms Pa in the control film to 4.43 × 10-9 g/m s Pa in the ME film, and decreased to 1.80 × 10-9 g/ms Pa in the NE film. Adding CEO led to more flexible films with enhanced strain at break (SAB) from 53.56% in the control film to 80% and 94.77% in the ME and NE films, respectively. The antifungal indices against A. niger and M. racemous were 14.16% and 20.82% in the ME films, and were improved to 18.81% and 25% in the NE ones., (© 2020 The Authors. Food Science & Nutrition published by Wiley Periodicals LLC.)- Published
- 2020
- Full Text
- View/download PDF
15. Development and characterization of biocomposite films made from kefiran, carboxymethyl cellulose and Satureja Khuzestanica essential oil.
- Author
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Hasheminya SM, Mokarram RR, Ghanbarzadeh B, Hamishekar H, Kafil HS, and Dehghannya J
- Subjects
- Anti-Bacterial Agents pharmacology, Antioxidants analysis, Escherichia coli drug effects, Hydrogen Bonding, Permeability, Spectroscopy, Fourier Transform Infrared, Staphylococcus aureus drug effects, Steam, Tensile Strength, Carboxymethylcellulose Sodium chemistry, Food Packaging instrumentation, Oils, Volatile pharmacology, Polysaccharides, Satureja chemistry
- Abstract
Kefiran-carboxymethyl cellulose biocomposite films incorporated with Satureja Khuzestanica essential oil were developed and characterized. Results indicated that increase in the concentration of the essential oil increased ultimate tensile strength and contact angle but decreased elongation at break, moisture content and water vapor permeability. It also significantly altered color parameters and the percentage of light transmission in the visible and ultraviolet range. Fourier transform infrared spectroscopy revealed the formation of hydrogen bonds between polymer matrix and essential oil. Scanning electron microscopy showed that the surface structure of the films was homogeneous without porosity. Increase in storage modulus and glass transmission temperature in films incorporated with the essential oil was observed through dynamic mechanical thermal analysis. Moreover, significant increase in antioxidant properties and phenolic compounds were noticed. Ultimately, results obtained from evaluation of antimicrobial characteristics of films indicated their inhibitory effects against Staphylococcus aureus and Escherichia coli bacteria., (Copyright © 2019 Elsevier Ltd. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
16. Styrene monomer migration from polystyrene based food packaging nanocomposite: Effect of clay and ZnO nanoparticles.
- Author
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Abolghasemi-Fakhri L, Ghanbarzadeh B, Dehghannya J, Abbasi F, and Adun P
- Subjects
- Chromatography, Gas methods, Diffusion, Ethanol chemistry, Reproducibility of Results, Clay, Food Packaging, Metal Nanoparticles chemistry, Nanocomposites chemistry, Polystyrenes chemistry, Styrene chemistry, Zinc Oxide chemistry
- Abstract
Inhibition from migration of plastic ingredients such as styrene monomer (SM) is very important in food packaging industry. Styrene monomer is one of the substances which can potentially migrate from polystyrene based packaging. In the present study, organoclay and zinc oxide nanoparticles (ZnO-NPs) were used for decreasing of the SM migration into food simulants (10 and 50% ethanol (v/v)). A used GC-FID method for measuring of the migrated SM showed good precision and accuracy. Maximum reduction of SM migration into 10% and 50% ethanol (24 h storage at 40 °C) were observed in the polystyrene/nanoclay and polystyrene/ZnO samples, respectively. The SM migration data in 50% ethanol at 5 °C followed from Fickian diffusion law and the lowest diffusion coefficient (2.89 × 10
-14 cm2 /s) was observed in the polystyrene/ZnO/nanoclay samples., (Copyright © 2019. Published by Elsevier Ltd.)- Published
- 2019
- Full Text
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17. Ultrasound-assisted intensification of a hybrid intermittent microwave - hot air drying process of potato: Quality aspects and energy consumption.
- Author
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Dehghannya J, Kadkhodaei S, Heshmati MK, and Ghanbarzadeh B
- Subjects
- Food Handling methods, Hot Temperature, Ultrasonics, Desiccation methods, Microwaves, Solanum tuberosum
- Abstract
The objective of this study was to intensify combined intermittent microwave - low temperature (40 °C) hot air drying with ultrasound. The process variables were ultrasound time (40 kHz for 0, 10, 20 and 30 min), microwave power (360, 600 and 900 W), and microwave pulse ratio (1, 2, 3 and 4). Results showed that the highest reduction in moisture content was observed in the samples pretreated with ultrasound for 10 min and then dried at 900 W microwave with the pulse ratio of 4. As ultrasound time, microwave power and pulse ratio increased, significant increases were noticed in D
eff by 4.89, 16.44 and 20.7%, respectively. Moreover, shrinkage was lower in the samples pretreated with lower ultrasound time and microwave pulse ratio. Besides, bulk density reduced when the microwave power was increased due to lower volume reduction. In addition, the highest increase in rehydration (32.23%) was observed in the samples dried using the high-power intermittent microwave. Finally, the highest significant reduction in specific energy consumption as a result of increased microwave power was 23.32%. In general, results of this study demonstrated that the ultrasound-intensified combined intermittent microwave - low temperature hot air drying may be a suitable alternative for industrial applications., (Copyright © 2019 Elsevier B.V. All rights reserved.)- Published
- 2019
- Full Text
- View/download PDF
18. Influence of a three stage hybrid ultrasound-osmotic-frying process on production of low-fat fried potato strips.
- Author
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Dehghannya J and Abedpour L
- Subjects
- Cooking instrumentation, Hot Temperature, Osmosis, Solanum tuberosum radiation effects, Water chemistry, Cooking methods, Fats analysis, Solanum tuberosum chemistry, Ultrasonics methods
- Abstract
Background: Fried potato is one of the most consumed products in the world. Due to consumers' growing tendency to use healthy and low-fat foods, reducing oil content in fried foods has become a necessity. Several studies have shown that higher initial water content results in increased oil uptake during frying. Therefore, pretreatments that reduce water content of the product could lower oil uptake in the final product. The aim of this study was to evaluate the influence of a three-stage hybrid ultrasound-osmotic-frying process on production of low-fat fried potato strips., Results: Results showed that, compared to control samples, osmotic pretreated samples using saline solutions at concentrations of 2% and 4% decreased oil uptake by 29.5% and 32.7%, respectively. Ultrasound (28 and 40 kHz) also showed a significant synergistic effect on reducing oil uptake in the samples pretreated with both ultrasound and osmotic dehydration so that different samples pretreated with both ultrasound and osmotic dehydration decreased oil uptake from approximately 40% to more than 50%, compared to untreated control samples., Conclusion: Owing to production of low-fat fried potato strips, utilising osmotic dehydration pretreatment was desirable before the frying process. Regarding low mass transfer rate during osmotic treatment, ultrasound was applied to enhance mass transfer rate. The use of ultrasound pretreatment in the frying process can yield promising results in reducing oil uptake. © 2017 Society of Chemical Industry., (© 2017 Society of Chemical Industry.)
- Published
- 2018
- Full Text
- View/download PDF
19. Development of a novel controlled-release nanocomposite based on poly(lactic acid) to increase the oxidative stability of soybean oil.
- Author
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Almasi H, Ghanbarzadeh B, Dehghannya J, Entezami AA, and Khosrowshahi Asl A
- Subjects
- Biphenyl Compounds chemistry, Food Preservation, Free Radical Scavengers, Oxidation-Reduction, Picrates chemistry, Polyesters, Antioxidants chemistry, Lactic Acid chemistry, Nanocomposites, Polymers chemistry, Soybean Oil chemistry
- Abstract
A poly(lactic acid) (PLA)-based nanocomposite active packaging was developed for the controlled release of tert-butylhydroquinone (TBHQ) antioxidant. The PLA-based active films were loaded with only TBHQ (3% wt) or a mixture of modified cellulose nanofibre (MCNF) (8% wt) and TBHQ (3% wt) to obtain active and nanocomposite active films, respectively. Release studies indicated that the release rate of TBHQ in 95% ethanol simulant was significantly decreased by the addition of MCNF. Moreover, the presence of MCNF diminished the increasing effect of temperature on the release rate as when storage temperature increased from 4°C to 40°C. The diffusion coefficient (D) for PLA-TBHQ and PLA-MCNF-TBHQ films increased from 6.75 and 4.34 × 10(-8) cm(2) s(-1) to 19.85 and 8.49 × 10(-8) cm(2) s(-1), respectively. Diffusion of TBHQ to soybean oil was enough to delay the induction of the oxidation of soybean oil stored for 6 months in contact with PLA-based films. Antioxidative activity of PLA-based active films considerably increased with increasing storage time as indicated by the increase in 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity and the oxidative stability index (p < 0.05). This study demonstrates that effective controlled release antioxidant packaging could be obtained by using MCNF nanofiller, which leads to prolonged activity and an extended shelf-life in fatty foods.
- Published
- 2014
- Full Text
- View/download PDF
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