共查询到19条相似文献,搜索用时 62 毫秒
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四种干燥方法生产番茄粉的品质特性研究 总被引:4,自引:1,他引:4
通过对喷雾干燥、热风干燥、真空干燥及真空冷冻干燥4种方法制成番茄粉的番茄红素含量、粉体特性等指标的分析及对比研究,对4种加工工艺生产的番茄粉的品质特性进行了评价,真空冷冻干燥法制成番茄粉的品质最好,喷雾干燥法从工艺适应性与经济效益多方面权衡该法应是首选。 相似文献
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预处理对热风干燥番茄粉理化性质的影响研究 总被引:1,自引:0,他引:1
考察预处理方法对不同温度下热风干燥番茄粉理化性质的影响。预处理方法包括醇滤、水滤和糊精助滤,并以无任何添加物直接过滤的样品作对照。样品经预处理后,置于一定温度下强制对流干燥至规定含水量,粉碎后得番茄粉,分别测定所得番茄粉的番茄红素含量、堆密度、分散时间、复水比、吸湿性和颜色。实验结果表明,番茄粉的理化性质与预处理方法有密切关系,醇滤预处理所得番茄粉的品质最好,其次是水滤,而糊精助滤与直滤相差不大。在65℃下干燥时,醇滤样品的番茄红素含量是直滤样品的1.43倍,提高了176.34μg/g;堆密度从0.44g/mL降低到0.33g/mL,分散时间由52s减小至23s,复水比由原来的7.6倍增加到10.3倍,吸湿性由1.9%增加至3.1%;粉末L*值由48.13增加至53.55。证明醇滤预处理可明显提高番茄粉中番茄红素的含量,减小其堆密度和分散时间,增大复水比和吸湿性,且番茄粉的颜色更加亮丽。 相似文献
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番茄粉在加工和贮藏过程中番茄红素的稳定性研究 总被引:11,自引:2,他引:9
对番茄粉在加工和贮藏过程中番茄红素的稳定性进行了研究。番茄粉在加工和贮藏过程中,番茄红素将会发生氧化降解和异构化。采用高效液相色谱和二极管阵列分析测定了番茄红素的损失率以及番茄红素顺势异构体的变化。当番茄在85℃破碎1min时, 0.56%的番茄红素发生了降解。番茄浆料浓缩时,分别有6.24%和3.05%的番茄红素发生了氧化降解和异构化。在喷雾干燥过程中,约有1.1%的番茄红素发生了降解,2.1%的番茄红素变成了顺式异构体。当番茄粉在和37℃室温下贮藏6周后,番茄红素的保留率分别为70%和86%。 相似文献
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研究亚麻籽粉添加量(0%、3%、5%)、番茄粉添加量(0.0%、1.5%、3.0%)和贮藏时间(4 ℃贮藏1、14、21、28 d)对鸡肉香肠理化特性和感官特性的交互作用。结果表明:亚麻籽粉和番茄粉的添加显著降低了鸡肉香肠亮度值(L*)、pH值、亚硝酸盐残留量和水分含量(P<0.05),显著提高了黄度值(b*)、蛋白质、碳水化合物、灰分和总膳食纤维含量(P<0.05);亚硝酸盐残留量在贮藏期间下降;亚麻籽粉的加入使鸡肉香肠中亚麻酸含量增加;添加3%以上的亚麻籽粉对鸡肉香肠的感官评定参数具有负面作用;亚麻籽粉×番茄粉交互作用对鸡肉香肠的水分含量、灰分含量、L*、红度值(a*)、b*、硫代巴比妥酸反应物(thiobarbituric acid reactive substance,TBARs)值、亚硝酸盐残留量、pH值、脂肪酸组成及感官评分均具有显著影响(P<0.05),亚麻籽粉×番茄粉×贮藏时间交互作用对鸡肉香肠的L*、a*、b*、TBARs值、亚硝酸盐残留量和pH值均具有显著影响(P<0.05)。 相似文献
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Céline Chanforan Michèle Loonis Nathalie Mora Catherine Caris-Veyrat Claire Dufour 《Food chemistry》2012
The effect of industrial processing was investigated on the stability of tomato carotenoids, phenolic compounds and ascorbic acid. A deep insight in the processed products allowed the quantification of caffeic acid hexosides, which are far more important contributors than the well-known chlorogenic acid, dicaffeoylquinic acids and quercetin oligosaccharides (new feruloyl, sinapoyl and syringoyl derivatives of quercetin apiosylrhamnosylglucoside). (E)-β-Carotene and (E)-lycopene were also quantified along with different mono- and di-(Z)-isomers of lycopene which were tentatively assigned. Processing of fresh tomato into paste had an overall positive effect on the contents in phenolic compounds, no effect on lycopene and a slight and high detrimental effect on β-carotene and ascorbic acid, respectively. The balance between the increase in tomato matrix extractability and microconstituent catabolism was further observed in two contrasted transformations of paste into sauce. Overall, the nutritional quality of tomato-processed products, except for ascorbic acid, is mainly preserved through manufacture. 相似文献
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Effect of different pre-treatments and dehydration methods on quality characteristics and storage stability of tomato powder 总被引:1,自引:0,他引:1
Dehydration process was carried out for tomato slices of var. Avinash after giving different pre-treatments such as calcium chloride (CaCl2), potassium metabisulphite (KMS), calcium chloride and potassium metabisulphite (CaCl2+KMS), and sodium chloride (NaCl). Untreated samples served as control. Solar drier and continuous conveyor (tunnel) drier were used for dehydration. Quality characteristics of tomato slices viz. moisture content, sugar, titratable acidity, lycopene content, dehydration ratio, rehydration ratio and non-enzymatic browning (NEB) as affected by dehydration process were studied. Storage study was also carried out for a period of 6 months for tomato powder packed into different types of packaging materials viz. metalized polyester (MP) film and low density polyethylene. Changes in lycopene content and NEB were estimated during storage at room temperature. Pre-treatment of 5 mm thickness of tomato slices with CaCl2 in combination with KMS and drying using a tunnel drier with subsequent storage of product in MP bags was selected as the best process. 相似文献
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《食品与发酵工业》2016,(2):164-171
为了研究不同加工方式对山楂挥发性成分的影响,利用固相微萃取-气相色谱/质谱联用的方法进行分析。优化条件后分别对山楂浆、冷冻干燥山楂粉、喷雾干燥山楂粉中的挥发性成分进行测定与分析,鉴定出挥发性成分:山楂浆中66种,其中醇类物质25.5%、醛类8.4%、酮类4.6%、酯类39.6%、烃类11.5%、呋喃类0.3%、其他物质10.1%;冷冻干燥山楂粉中54种挥发性物质,其中醇类物质27.7%、醛类13.9%、酮类10.7%、酯类34.2%、烃类5.5%、呋喃类0.3%、其他物质7.7%;喷雾干燥山楂粉中41种挥发性物质,其中醇类物质42.5%、醛类25.4%、酮类9.0%、酯类14.4%、烃类4.4%、呋喃类0.5%、其他3.8%。结果表明:山楂浆经冷冻干燥处理后,酯类、烃类物质略有减少,醇类、醛酮类物质有所增加;而经喷雾干燥处理后,酯类物质显著减少,醇类及醛酮类物质增加,香甜风味增强,为山楂果粉的研制提供参考。 相似文献
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绿豆酸奶粉的加工工艺 总被引:4,自引:0,他引:4
对酸奶菌种进行耐热驯化,制备绿豆酸奶后,配以奶粉、麦芽糊精及保护剂等进行喷雾干燥制备绿豆酸奶粉,较好地保存了部分活菌数,延长了产品的保质期。 相似文献
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