农产品加工(下半月)
農產品加工(下半月)
농산품가공(하반월)
AEM RODUCTS ROCESSING
2015年
1期
12-15,22
,共5页
气体射流冲击%干燥%香蕉%数学模型
氣體射流遲擊%榦燥%香蕉%數學模型
기체사류충격%간조%향초%수학모형
air-impingement jet%drying%banana%mathematical modeling
利用气体射流冲击干燥技术,探讨不同射流温度、介质风速和切片厚度对干燥特性的影响,建立干燥动力学模型,并应用DPS软件对试验数据进行拟合,同时测定干燥后香蕉片多酚含量及清除DPPH·能力。结果表明,射流温度、介质风速和切片厚度对香蕉片干燥曲线以及干燥速度均有影响;香蕉片气体射流冲击干燥满足Page与Modified Page模型;气体射流冲击干燥会导致香蕉片多酚含量下降,且DPPH·的清除率下降约50%。
利用氣體射流遲擊榦燥技術,探討不同射流溫度、介質風速和切片厚度對榦燥特性的影響,建立榦燥動力學模型,併應用DPS軟件對試驗數據進行擬閤,同時測定榦燥後香蕉片多酚含量及清除DPPH·能力。結果錶明,射流溫度、介質風速和切片厚度對香蕉片榦燥麯線以及榦燥速度均有影響;香蕉片氣體射流遲擊榦燥滿足Page與Modified Page模型;氣體射流遲擊榦燥會導緻香蕉片多酚含量下降,且DPPH·的清除率下降約50%。
이용기체사류충격간조기술,탐토불동사류온도、개질풍속화절편후도대간조특성적영향,건립간조동역학모형,병응용DPS연건대시험수거진행의합,동시측정간조후향초편다분함량급청제DPPH·능력。결과표명,사류온도、개질풍속화절편후도대향초편간조곡선이급간조속도균유영향;향초편기체사류충격간조만족Page여Modified Page모형;기체사류충격간조회도치향초편다분함량하강,차DPPH·적청제솔하강약50%。
In this test, jet impingement drying technology are applied to explore the influence of jet temperature, air rate and slice thickness on the drying characteristics of bananas. A drying kinetics model is established and the experimental data are fitted by the software DPS. Besides polyphenol content and DPPH· scavenging capacity of dried banana slice are determined. The results show that jet temperature, air rate and slice thickness had influence on the drying curve and the drying rate of bananas. The drying kinetics model of banana slices fit the page and modified page model. The polyphenol content of banana slices decreases and he scavenging activities on DPPH· tended to decrease by 50%.