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微波干燥法生产马铃薯脆片的研究 总被引:5,自引:0,他引:5
对微波功率、处理时间、淀粉含量、热风干燥等因素对马铃薯片生产的影响进行了研究,并对影响因素进行了比较。研究结果表明微波功率越强,失水速率越快,干燥所需时间越短;微波功率和微波处理时间的变化对马铃薯片脆度具有显著的影响,淀粉含量对马铃薯片脆度的影响不显著。先用72℃热风将马铃薯片干燥至16%水分,再用功率为640w的微波处理330s可以获得品质优良的马铃薯脆片。 相似文献
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对微波功率、处理时间、淀粉含量、热风干燥等因素对马铃著片生产的影响进行了研究,并对影响因素进行了比较。研究结果表明:微波功率越强,失水速率越快,干燥所需时间越短;微波功率和微波处理时间的变化对马铃薯片脆度具有显著的影响,淀粉含量对马铃薯片脆度的影响不显著。先用72℃热风将马铃薯片干燥至16%水分,再用功率为640w的微波处理330s可以获得品质优良的马铃薯脆片。 相似文献
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响应面法优化慈姑脆片微波加工工艺 总被引:1,自引:0,他引:1
以慈姑为原料,采用微波加工方式制成即食慈姑脆片,考察了装载量、切片厚度、微波功率对慈姑脆片脆度、硬度及b*值的影响,并采用响应面试验优化微波加工工艺。结果表明,即食慈姑脆片微波加工最佳工艺条件为:慈姑片装载量52 g,切片厚度2.4 mm,微波功率210 W,最终慈姑脆片脆度为1873.47 g,所得慈姑脆片色泽鲜亮均匀、酥脆爽口、具有慈姑独特风味。通过比较微波干燥、恒温干燥、热风联合微波干燥和热泵干燥的慈姑脆片主要特性,结果表明微波干燥的慈姑脆片主要特性比较优良。 相似文献
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为探讨风味山药脆片的最佳干燥工艺,以山药为原料,以感官评分和脆度为评价指标,采用单因素实验和正交试验研究切片厚度、微波功率、微波时间和装载量对风味山药脆片品质的影响。结果表明,青柠味、番茄味、香辣味三种不同风味的山药脆片最佳的真空微波干燥工艺为:真空度-90 kPa,切片厚度1 mm,微波功率1.5 kW,微波时间12 min,装载量1750 g/m~2。在该工艺下,研制的风味山药脆片味道独特、口感好、品质佳。青柠味山药脆片的脆度为520.33 g/s,感官评分为90.67分;番茄味山药片的脆度为523.67 g/s,感官评分为89.33分;香辣味山药脆片的脆度为525.00 g/s,感官评分为90.00分。 相似文献
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添加辅料对压差闪蒸联合干燥马铃薯复合脆片品质的影响 总被引:2,自引:1,他引:1
以马铃薯和胡萝卜为主要原料,分别添加蔗糖、麦芽糖醇、大豆蛋白等不同辅料,采用压差闪蒸联合干燥工艺加工再造型马铃薯复合脆片,探究不同辅料对再造型马铃薯复合脆片品质的影响。结果表明:各类辅料对复合脆片的色泽、质构、感官评价、微观结构等品质均有显著影响,具体表现为大豆蛋白显著提高脆片的L*值、ΔE值,蔗糖、蔗糖和大豆蛋白复合辅料均显著提高脆片的脆硬度并形成了较好的孔隙结构;感官评价结果表明,分别加入蔗糖和麦芽糖醇的马铃薯复合脆片消费者偏爱度较高。采用主成分分析法提取了3个主成分,并对所得到的马铃薯复合脆片品质指标进行综合分析,结果显示加入10%~13%(m/m)麦芽糖醇的马铃薯复合脆片不仅感官品质较佳,脆硬度较好,且相比添加其他辅料维生素C含量损失较少。综合考虑,麦芽糖醇可作为辅料添加用于改善再造型马铃薯复合脆片品质。 相似文献
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为使蒲公英的食用不受季节和地域的限制,本研究以蒲公英为主要原料,辅以淀粉和豆粉等成分后重构定型,并采用微波真空膨化技术将其制成一种蒲公英脆片新产品。在建立模糊数学感官评价体系的基础上,采用模糊数学感官评价体系评分和产品脆度为指标,经过单因素和响应曲面优化设计蒲公英脆片配方。结果表明,确定蒲公英脆片最佳配方(以50.00 g蒲公英浆糊为标准)为:马铃薯淀粉8.6 g,食盐添加量0.5 g,豆粉添加量7 g,白砂糖添加量7.5 g;蒲公英脆片最佳制备工艺:脆片厚度为2 mm,膨化功率1513 W,膨化时间38 min,此时所得的脆片模糊数学感官评分为96分,脆度值为1.67 mm。在此条件下制得的蒲公英脆片有较好的感官特性,组织状态、色泽、滋味、气味、膨化效果均较佳,可为蔬果脆片加工业提供参考。 相似文献
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通过单因素试验,对利用微波生产低油马铃薯片工艺中影响产品脆度、色泽和含油量的一些因素进行了探讨。结果表明:利用微波生产马铃薯片可以降低薯片含油量到20%以下;干燥前食盐水溶液浸泡处理(1.5%~2.0%食盐水溶液浸泡5min)和涂油前用豆奶粉裹衣处理,均能降低产品的含油量,提高马铃薯片的脆度;同时,适量的豆奶粉裹衣处理,能赋予产品良好的色泽,豆奶粉的用量6%比较适宜;冷冻处理能加深产品的色泽,但是对产品的脆度和含油量的影响不大。 相似文献
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A. Salvador 《LWT》2009,42(3):763-767
The fracture and acoustic properties of six commercial potato chips that differ in sensory hardness and sensory crispness were analysed and related in this work. Principal component analysis showed a correlation among the sensory attributes and the instrumental parameters (both mechanical and acoustic). Two components mainly explained the behaviour of the different potato chips. The first component was positively related to the number of force and sound events, to sound pressure level maximum, to the area under the force curve, and to sensory crispness, and negatively related to fat content; and the second component was positively related to the gradient (slope of the first part of the curve), the potato chip thickness, and to sensory hardness and sensory crispness. The behaviour of the different potato chips was explained by either one of the two components or by both components. Results indicate that certain degree of sensory hardness is necessary for higher crispness perception. 相似文献
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通过与棕榈油对比180℃下炸制薯片以及评估薯片感官喜好度、质构、口感及粘牙性等差异来评价稻米油调和油的煎炸应用性能。结果表明:采用稻米油调和油煎炸的薯片中多不饱和脂肪酸含量显著高于棕榈油(P<0.05),且其薯片的整体感官喜好度、质构口感、酥脆度、粘牙喜好度,均显著优于棕榈油薯片(P<0.05)。在加速氧化条件下,采用稻米油调和油炸制的薯片的酸价、过氧化值均与棕榈油炸制的薯片无显著性差异(P>0.05),且远低于GB 16565-2003的规定。在加速存储过程中,谷维素却得到了很好的保留。总之,稻米油调和油具有良好的煎炸性能。 相似文献
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ABSTRACT: Equilibration of fat-free apple chips to predetermined moisture level was achieved by keeping samples over saturated salt solutions. The sorption isotherm obtained indicated absence of a monolayer and was typical for type III according to the Brunauer classification. At water activity below 0.12 apple chips demonstrated excellent crispness and were highly acceptable as a snack food item. They were extremely hygroscopic and lost crispness easily. The critical water activity was found to be ac = 0.18 which corresponds to a water content of 3.5 g H2 O/100 g solids. These values were much lower than those found for other crispy snack foods. 相似文献
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Danuta Jaworska Monika Hoffmann 《Journal of the science of food and agriculture》2008,88(10):1804-1812
BACKGROUND: Understanding the textural properties of a food can be important for producers and marketers of crispy products. Relationships between texture, overall sensory quality (OSQ) and consumer acceptance of different products have been a field of interest for many authors. Despite this, results of research concerning the importance of texture remain inconclusive. The aim of this study was to evaluate the relationship between texture and other sensory attributes on an example of potato chips and their OSQ and consumer acceptance. To determine which attributes played a dominant role in the OSQ of chips, statistical correlations were calculated. RESULTS: Among the 11 attributes analysed, three had a positive relationship with the OSQ. These were: fried potato odour (r = 0.487), fried potato flavour (r = 0.597) and crispness (r = 0.570). The negative relation was observed for off‐flavour notes (r = ? 0.740; ? 0.693). Among the texture attributes, also negative, but without a dominant influence on OSQ, were hardness and undesirable type of fragmentation. CONCLUSION: Texture properties were found to be significantly correlated with OSQ as well as with consumer acceptance, but other attributes, especially those with negative sensory effects, determined OSQ of the products examined and are of crucial importance for consumer acceptance. Copyright © 2008 Society of Chemical Industry 相似文献
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Mitsuru Taniwaki Naoki Sakurai Hiroyuki Kato 《Food research international (Ottawa, Ont.)》2010,43(3):814-818
The texture of potato chips was evaluated using a novel method. Four kinds of potato chips with different thicknesses and crispness were fractured by a probe and the corresponding acoustic vibrations were detected by a piezoelectric sensor. The vibration signals were filtered into 19 frequency bands. The texture index (TI) was calculated for each band, using data from three selected parts of the time-domain signals: the anterior part from the probe contact point to a major fracture, the major fracture part, and the full texture signals. The TI was the lowest for the anterior part at all bands. The TI of the major fracture part was the highest in all frequency bands except for 100–140 Hz. The new analysis method revealed that the TI above 1600 Hz reflected the crispness of potato chips. 相似文献
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<正> 随着人们生活水平的提高和旅游业的迅猛发展,可口美味、食用方便的油炸天然马铃薯片深受消费者的欢迎,需求量逐年提高。如何使油炸天然马铃薯片在众多品牌中占一席之地? 除产品风味之外,其酥脆性至关重要。 基本上,不同品种的马铃薯其酥脆度也不一样。在这个研究中,我们选择了新克2号马铃薯进行试验,采用多次浸浮(逐层膨化)法。其生产工艺步骤为:用切片机将马铃薯切成1.5毫米厚的薄片,经16℃的水漂洗后,放进油炸机中油炸2分钟,进口温度为170℃,出口温度为165℃。炸油选用海皇牌棕桐油,生产线的能力 相似文献