Changes in electrical conductivity of Aloe vera juice during ohmic heating.

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dc.contributor.advisorParamjit Singh
dc.contributor.authorRamanjeet Kaur
dc.date.accessioned2017-12-12T04:48:37Z
dc.date.available2017-12-12T04:48:37Z
dc.date.issued2017
dc.description.abstractDevelopment of new thermal treatments to food materials is of great scientific use. Ohmic heating is one of these methods and is a novel technique for heating liquid food for the purpose of processing. This technique has certain advantages as compared to conventional techniques as it provides uniform heating to food materials and is energy efficient. In this study, ohmic heating treatment was applied to Aloe vera juice. The juice was ohmically heated from the room temperature to 75°C. Five different voltage gradients of 8, 10, 12, 14 and 16 V/cm were applied on five different concentrations (60, 70, 80, 90 and 100%) of the juice. It was observed that ohmic heating rate of the juice was highly influenced by its electrical conductivity. The electrical conductivity of the juice showed a linear increase as the temperature increased. Heating rate also followed a linear trend. The results were statistically analysed. Statistical analysis was done on all the parameters and it was concluded that ohmic heating had no effect on viscosity and TSS of sample, but there was a significant effect of this treatment on pH values of juice. System performance coefficient was calculated for the ohmic heater whose values came out to be 0.95, 0.92, 0.89, 0.87, 0.77 for 8, 10, 12, 14 and 16 V/cm respectively. Thus in this study the ohmic heater worked best at 8 V/cm.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810037387
dc.keywordsOhmic heating, Aloe vera, Electrical conductivity, TSS, Viscosity, pH, System performance coefficienten_US
dc.language.isoenen_US
dc.pages61en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemChanges in electrical conductivity of Aloe vera juice during ohmic heatingen_US
dc.subAgricultural Physics and Meteorologyen_US
dc.subjectnullen_US
dc.themeChanges in electrical conductivity of Aloe vera juice during ohmic heatingen_US
dc.these.typeM.Scen_US
dc.titleChanges in electrical conductivity of Aloe vera juice during ohmic heating.en_US
dc.typeThesisen_US
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