改良剂对洋葱调味汁特征风味的稳定作用研究Study on Stabilizing Effect of Modifiers on the Characteristic Flavor of Onion Sauce
黄俊僮,白松,徐文,杜沁岭,彭钰嫣,贾冬英
摘要(Abstract):
有机硫化物是洋葱特征风味的来源,但其稳定性差,对热和光敏感,成为制约洋葱深加工利用的难题。基于此,采用GC-MS法分析37℃下贮藏7 d和15 d的洋葱调味汁中特征风味物质的变化,研究了马铃薯淀粉(PS)、α-环糊精(α-CD)和果胶对贮藏期间调味汁中挥发性硫化物的影响。结果显示,贮藏期间洋葱调味汁的风味变化主要与其挥发性硫化物有关,其葱香味的主要贡献物质为二丙基二硫醚,蒜臭味的主要成分为二甲基三硫醚;适宜用量的PS(0.3%)、α-CD(0.1%)和果胶(0.3%)均有助于洋葱调味汁更好地保留其葱香味物质,减少蒜臭味物质的释放。3种改良剂中,以添加0.3%马铃薯淀粉的洋葱调味汁风味保持最好,37℃下贮藏15 d时其二丙基二硫醚含量为对照组的140%,而二甲基三硫醚含量仅为对照组的58%。不同种类的改良剂对洋葱调味汁特征风味稳定作用不同。
关键词(KeyWords): 洋葱调味汁;挥发性硫化物;改良剂;风味稳定
基金项目(Foundation): 成都市技术创新研发项目(2021-YF05-01128-SN)
作者(Author): 黄俊僮,白松,徐文,杜沁岭,彭钰嫣,贾冬英
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