共查询到20条相似文献,搜索用时 140 毫秒
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为解决电热鼓风烘箱烘焙白肋烟效果不佳、与生产线烘焙效果差异大以及工艺研究中的原料浪费和能耗等问题,设计了一种实验室用的白肋烟烘焙设备。该设备采用三段式烘焙设计和PID自动控温技术,能够有效模拟在线生产中白肋烟的烘焙过程,满足白肋烟烘焙工艺研究、产品开发及配方维护需求,填补了国内白肋烟实验室三段式烘焙设备的空白。验证设备的实际应用效果,并对稳定性进行了评价。结果表明:①使用该设备处理后白肋烟中主要的美拉德反应产物和感官质量能够达到与在线烘焙机一致的效果。②该设备稳定性良好,同一叶组,经不同批次烘焙后,其主要的美拉德反应产物含量和感官质量均未见明显差异。 相似文献
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C Klug G W von Rymon Lipinski D B?ttger 《Zeitschrift für Lebensmittel-Untersuchung und -Forschung》1992,194(5):476-478
The stability of acesulfame K during baking was investigated at different baking temperatures and baking times. The contents of acesulfame K in baked and unbaked doughs were determined by HPLC. The recovery rate of acesulfame K was independent of the baking conditions chosen and correlated with the recovery rate of acesulfame K in the unbaked doughs. As the stability of acesulfame K cannot only be affected by baking temperature and baking time but also by pH value and moisture content of the baked goods, additional stability investigations were performed with acidic fillings and apple pie. Even under these extreme baking conditions no decomposition of acesulfame K could be detected. 相似文献
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TEXTURAL AND VISCOELASTIC CHANGES OF CANNED BISCUIT DOUGH DURING MICROWAVE AND CONVENTIONAL BAKING 总被引:1,自引:0,他引:1
Textural changes of canned biscuit wheat dough during microwave and conventional baking were described and contrasted using empirical methods. Drastic increases of specific volume and modulus of elasticity were observed in the beginning and the ending periods of both baking processes. Weight loss showed a significantly (p < 0.001) linear relationship with baking time for both baking methods, but the weight loss rate constant for microwave baking was 0.36%/s significantly (p<0.01) higher than conventional baking. Multi-dimensional Scaling showed that microwave baking for 50 s best resembles the textural characteristics of wheat dough under conventional baking for 10 min. Stress relaxation modeling indicated that microwave baking produced higher viscosity and modulus of elasticity values which translates into baked biscuits with undesirable tougher texture. 相似文献
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A special type of baking oven was developed where crustless bread was made by gently baking the dough at controlled temperature by spraying water at prefixed intervals on the surface of the dough. In this study, a two-dimensional (2D) CFD model for crustless bread during baking has been developed to facilitate a better understanding of the baking process. Simultaneous heat and mass transfer from the bread during baking was successfully simulated. It was found that core temperature of the bread reached at 95 °C at the end of baking where as moisture of the bread satisfies the normal bread quality. The model can be successively applied to study the unsteady heat and mass transfer from the crustless bread during baking. 相似文献
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为解决夹心海苔在生产过程中二次高温烘烤导致的生产能耗高、产品品质参差不齐等问题,本论文研究了7.5、15 W/g功率微波联合120、150、180、210℃红外烘烤对比单一红外烘烤对夹心海苔质构、色泽、营养成分、风味以及微生物的影响。结果表明:对比单一红外烘烤,微波联合红外烘烤的夹心海苔质构特性变化显著(P<0.05),其中脆度、胶着性和咀嚼性都呈下降趋势;色泽更趋近于黄绿色,总色差无显著差异,基本营养成分无显著差异。风味物质方面,单一红外烘烤后乙硫醇、辛醛、壬醛相对含量逐渐降低,夹心海苔的特殊风味降低;而微波联合红外烘烤得到的产品含有较多甲硫醚,相对含量高达76.8%,为夹心海苔带来明显的鲜味。微生物方面,微波联合红外烘烤杀灭微生物的效率显著高于单一红外烘烤(P<0.05)。此外,对比单一红外烘烤,联合7.5 W/g微波烘烤能耗降低3.15%~18.78%,在节能上更有优势。综上,本研究利用微波联合红外烘烤生产夹心海苔,使产品色泽优,生产能耗低,微生物杀灭效果好,并能提高产品风味,为夹心海苔烘烤技术的升级提供理论参考。 相似文献
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为探讨不同火功武夷岩茶生化成分浸泡规律,以同一武夷水仙毛茶精制而成的轻火茶、中火茶、足火茶为研究对象,考察浸泡温度、浸泡时间、浸泡次数、浸泡茶水比对各火功岩茶生化成分浸出的影响,并进行方差分析。结果表明:烘焙对武夷岩茶生化成分产生较大影响,无论是同火功武夷岩茶在不同浸泡条件下内含物浸出,还是不同火功武夷岩茶在相同浸泡条件下内含物浸出,均存在较大差异。随着浸泡温度从60℃升高到100℃不同火功武夷岩茶内含物浸出率均提高,但不同火功茶间差异缩小;浸泡1~3 min各火功茶样内含物浸出率可达60%~90%;三次冲泡后各火功武夷岩茶除游离氨基酸外,其余生化成分已基本浸出;不同茶水比条件下各火功武夷岩茶除茶多酚外,其余各成分变化幅度不足20%。 相似文献