Determination of drying parameters, ascorbic acid contents and color characteristics of nettle leaves during microwave-, air- and combined microwave-air-drying

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dc.contributor.buuauthorAlibaş, İlknur
dc.contributor.departmentBursa Uludağ Üniversitesi/Ziraat Fakültesi/Tarım Makineleri Bölümü.tr_TR
dc.contributor.orcid0000-0002-1898-8390tr_TR
dc.contributor.researcheridAAH-4263-2021tr_TR
dc.contributor.scopusid15050151200tr_TR
dc.date.accessioned2021-11-23T06:45:12Z
dc.date.available2021-11-23T06:45:12Z
dc.date.issued2010-04
dc.description.abstractNettle leaves (Urtica dioica L.), with a moisture of 4.41 (dry basis [d.b .]), were dried using three drying methods: microwave, air and combined microwave-air. Drying continued until leaf moisture decreased to 0.1 (d.b .). Three different microwave output powers, 160, 350 and 500 W, were used in the microwave-drying. Drying treatments in air-drying were 50, 75 and 100C, and 1 m/s fan speed. The combination drying, in which microwave- and air-drying were applied together, was nine different combination levels. Drying periods lasted for 6-14, 40-120 and 2-12 min for microwave-, air- and combined microwave-air-drying, respectively, depending on the drying level. Energy consumption was 0.07-0.10, 0.25-0.34 and 0.08-0.16 kWh, respectively. In this study, measured values were compared with the predicted values obtained from Page's semiempirical equation. Optimum drying period, color and energy consumption were obtained when microwave- and air-drying were applied simultaneously and the optimum combination level was 500-W microwave applications at 50C. PRACTICAL APPLICATIONS Microwave-, air- and combined microwave-air-drying have been industrially applied in the drying of foodstuffs, and pharmaceutical and biologic products. The use of a combined microwave-air dryer is common in the food industry. Applied examples include the serial or a parallel combination of bothmethods. The application of the microwave as a heat source produces a fast drying rate and higher drying quality. Tunnel-type microwave-air dryers have been recently used in the industry, and they can be used for the drying of foods, wood and paper products, traditional medicine solid preparations, crude drugs and sliced herbal medicines. They have the virtues of rapid drying, well distributed, energy saving, high efficiency, easy to operate and control, safety and nonpollution, etc.en_US
dc.identifier.citationAlibaş, İ. (2010). "Determination of drying parameters, ascorbic acid contents and color characteristics of nettle leaves during microwave-, air- and combined microwave-air-drying". Journal of Food Process Engineering, 33(2), 213-233.en_US
dc.identifier.endpage233tr_TR
dc.identifier.issn0145-8876
dc.identifier.issn1745-4530
dc.identifier.issue2tr_TR
dc.identifier.scopus2-s2.0-77949763715tr_TR
dc.identifier.startpage213tr_TR
dc.identifier.urihttps://doi.org/10.1111/j.1745-4530.2008.00268.x
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/full/10.1111/j.1745-4530.2008.00268.x
dc.identifier.urihttp://hdl.handle.net/11452/22767
dc.identifier.volume33tr_TR
dc.identifier.wos000275757400002tr_TR
dc.indexed.scopusScopusen_US
dc.indexed.wosSCIEen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.journalJournal of Food Process Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergitr_TR
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHot-airen_US
dc.subjectOsmotic dehydrationen_US
dc.subjectKineticsen_US
dc.subjectQualityen_US
dc.subjectAppleen_US
dc.subjectEngineeringen_US
dc.subjectFood science & technologyen_US
dc.subjectUrticaen_US
dc.subjectUrtica dioicaen_US
dc.subjectDewateringen_US
dc.subjectDryingen_US
dc.subjectKetonesen_US
dc.subjectMicrowavesen_US
dc.subjectMoistureen_US
dc.subjectOrganic acidsen_US
dc.subjectSolar dryersen_US
dc.subjectAscorbic acidsen_US
dc.subjectColor characteristicsen_US
dc.subjectCombination dryingen_US
dc.subjectDrying methodsen_US
dc.subjectDrying parametersen_US
dc.subjectDrying treatmenten_US
dc.subjectEnergy consumptionen_US
dc.subjectFan speeden_US
dc.subjectLeaf moistureen_US
dc.subjectMicrowave applicationsen_US
dc.subjectOptimum combinationen_US
dc.subjectOutput poweren_US
dc.subjectSemiempirical equationen_US
dc.subjectCuringen_US
dc.subject.scopusThin-Layer Drying; High Temperature Air; Solar Dryersen_US
dc.subject.wosEngineering, chemicalen_US
dc.subject.wosFood science & technologyen_US
dc.titleDetermination of drying parameters, ascorbic acid contents and color characteristics of nettle leaves during microwave-, air- and combined microwave-air-dryingen_US
dc.typeArticle
dc.wos.quartileQ3en_US

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