共查询到19条相似文献,搜索用时 62 毫秒
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以番石榴为原料,探索低糖番石榴果脯的加工工艺,并重点研究护色、糖制过程对低糖番石榴果脯品质的影响,选出较佳的工艺条件.结果表明,采用0.1%抗坏血酸进行护色,放入95℃热水中烫漂3 min;在含量为25%蔗糖,20%葡萄糖,03%柠檬酸,0.6%明胶的溶液中,反复两次在40℃、0.085 MPa真空环境下渗糖20 min,再常压浸糖4h.干燥后可制得具有番石榴独特芬芳香味的低糖果脯. 相似文献
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Sílvia Cristina Sobottka Rolim de Moura Paulo Eduardo da Rocha Tavares Sílvia Pimentel Marconi Germer Alba Lucia Andrade Coelho Nisida Adriana Barreto Alves Alexandre Saikali Kanaan 《Food and Bioprocess Technology》2012,5(6):2488-2496
The objective of this study was to monitor the stability of anthocyanin and phenolic compounds contained in two formulations of blackberry jam (traditional and low-sugar) during storage. For that purpose, jams were prepared with varying amounts of hydrocolloids and investigated as to pH, total soluble solids, water activity, total acidity, total anthocyanins and total polyphenols. In order to accompany and assess the levels of phenolic compounds and colour (L*, a* and b*) changes, the samples were stored for 180 days at two different temperatures (10 and 25 °C). The Arrhenius model was used to determine the relationship between the reaction rate (k) at the different storage temperatures, yielding activation energy values of 19 and 12 kcal/mol and Q 10 values of 3.0 and 2.0 for traditional and low-sugar jams, respectively. The results show that by the end of the storage time investigated, the anthocyanin compounds had been partially degraded, with the greatest loss being observed in traditional jam stored at 25 °C. Colour stability was also lower in traditional jam as compared to the low-sugar product. 相似文献
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低糖桃脯的生产工艺研究 总被引:3,自引:0,他引:3
对低糖桃脯的生产工艺研究结果表明,糖煮液中添加0.2%海藻酸钠 0.1%CaCl2或添加0.2%LM果胶 0.1CaCl2,可使产品保持形态饱满。采用热处理(100℃、20min,或110℃、3~5min)或微波杀菌(功率1Kw、1~3min)均能使产品保存12个月,无发酵、生霉等败坏现象,并且后者VC保存率高达64.5%。在糖煮时添加降水分活性剂,即1.0%NaCl、1.5%甘油、0.5%乙醇,可使产品水分活性明显降低,保存12个月后无一败坏,而未添加降水分活性剂的产品,12个月后败坏率高达67%。 相似文献
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无硫低糖莲藕脯制作工艺优化 总被引:2,自引:0,他引:2
采用单因素和L9(34)正交试验研究不同因素对无硫莲藕脯护色及微波渗糖效果的影响,通过测定处理后莲藕片的褐变度和含糖量的变化确定最佳护色和微波渗糖工艺条件。结果表明:L-半胱氨酸质量分数0.40%、EDTA-Na2质量分数0.15%、食盐质量分数0.20%组合成的复合护色剂对莲藕片护色效果最佳;糖液质量分数30%,40%(320W)微波火力渗糖20min,其效果最佳。 相似文献
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