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微波流態(tài)化干燥姜片工藝與品質(zhì)分析
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國家高技術(shù)研究發(fā)展計劃(863計劃)資助項目(2011AA100802)和科研院所技術(shù)開發(fā)研究專項資金資助項目(2012EG119149)


Process and Quality of Ginger Slices Microwave-Fluidization Drying
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    摘要:

    研究了不同微波功率下,微波流態(tài)化干燥姜片的工藝和品質(zhì)。在工藝參數(shù)比較適中的0.7W/g的微波功率下,姜片流態(tài)化干燥時間為1.83h,與75℃熱風(fēng)干燥相比干燥時間縮短了6.67h,且維生素C保有率優(yōu)于熱風(fēng)干燥。然而,微波流態(tài)化干燥,姜片的微觀結(jié)構(gòu)和復(fù)水能力都發(fā)生了明顯的變化,當(dāng)干基含水率降到200%以下,姜片的感官品質(zhì)變化很快。發(fā)揮微波流態(tài)化干燥的相對優(yōu)勢,需要控制干燥后期的降水速度,這也是改進(jìn)工藝的研究重點。

    Abstract:

    In different microwave powers, the process and quality of ginger slices microwave-fluidization drying was researched. In the microwave power of 0.7W/g, which was moderate for the process parameters, the drying time cost 1.83 hours, 6.67 hours less than that in the 75℃ hot-air drying, and protected the content of vitamin C better. However, the microstructure and rehydration capability changed too much in microwave-fluidization drying, and when the dry basis moisture content was less than 200%, the gingers' sensory quality turned bad quickly. In order to develop the microwave-fluidization drying's relative advantage, controlling the dehydration speed in final stage would be importatnt, which also was the key work to improve the process.

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呂為喬,王也,韓清華,李樹君,尹青,馬季威.微波流態(tài)化干燥姜片工藝與品質(zhì)分析[J].農(nóng)業(yè)機械學(xué)報,2014,45(8):231-235. Lü Weiqiao, Wang Ye, Han Qinghua, Li Shujun, Yin Qing, Ma Jiwei. Process and Quality of Ginger Slices Microwave-Fluidization Drying[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(8):231-235.

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  • 收稿日期:2013-09-11
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  • 在線發(fā)布日期: 2014-08-10
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