Objectives:We used stir-fried oat flour as experimental material and raw oat flour as a control to explore the influence of stir-frying on the storagequalityofoatflour.Materials and Methods:The HS-SPME-GC-MS method co...Objectives:We used stir-fried oat flour as experimental material and raw oat flour as a control to explore the influence of stir-frying on the storagequalityofoatflour.Materials and Methods:The HS-SPME-GC-MS method combined with electronic nose technology was used to understand the lipid stability and analyze the changes in the flavor of the substances during the entire storage period.Results:It was observed that during the storage period,stir-fried oat flour contained less water than raw oat flavor.The former was characterized by a lower fatty acid value,lower acid value,and lower linoleic acid content,but higher oleic acid content and palmitic acid content compared to the latter.With the passage of storage time,the palmitic acid content significantly increased,and the linoleic acid content significantly decreased in raw and stir-fried oats flour(P<o.05).The sulfur and methyl contents in the stir-fried oat flour were higher than those in the raw flour,while nitrogen oxide content in the former was lower than that in the latter.Stir-fried oat flour possessed a total of 78 identified flavor substances.The process of stir-frying boosts the oxidation decomposition of unsaturated fatty acids aldehydes and heterocyclic compounds produced by the Maillard reaction,so the flavor substances of stir-fried oat flour are richer.Conclusions:Stir-fried oat flour,containing diverse types of flavor substances,experienced more obvious flavor changes throughout the storage period than raw oat flour.展开更多
为了改善燕麦粉加工的适应性,选用植物乳杆菌(Lactobacillus plantarum HH-LP56)分别对燕麦生粉和不同糊化度(13%、17%、24%、30%、34%)燕麦熟粉进行发酵改性,探究乳酸菌发酵对燕麦粉的游离氨基酸、淀粉酶活性、还原糖含量和热特性,以...为了改善燕麦粉加工的适应性,选用植物乳杆菌(Lactobacillus plantarum HH-LP56)分别对燕麦生粉和不同糊化度(13%、17%、24%、30%、34%)燕麦熟粉进行发酵改性,探究乳酸菌发酵对燕麦粉的游离氨基酸、淀粉酶活性、还原糖含量和热特性,以及燕麦-小麦复配面团的流变发酵特性和馒头质构特性的影响。结果表明:乳酸菌发酵促进了燕麦生粉中游离氨基酸的释放,增加了燕麦生粉和熟粉中淀粉酶活性和还原糖含量。将发酵改性燕麦生/熟粉与小麦粉进行复配,改善了面团的发酵特性,制得的馒头比体积上升,硬度下降,馒头的品质特性得到有效改善。展开更多
基金the Major Science and Technology Project of Inner Mongolia Autonomous Region(2021ZD0002),China.
文摘Objectives:We used stir-fried oat flour as experimental material and raw oat flour as a control to explore the influence of stir-frying on the storagequalityofoatflour.Materials and Methods:The HS-SPME-GC-MS method combined with electronic nose technology was used to understand the lipid stability and analyze the changes in the flavor of the substances during the entire storage period.Results:It was observed that during the storage period,stir-fried oat flour contained less water than raw oat flavor.The former was characterized by a lower fatty acid value,lower acid value,and lower linoleic acid content,but higher oleic acid content and palmitic acid content compared to the latter.With the passage of storage time,the palmitic acid content significantly increased,and the linoleic acid content significantly decreased in raw and stir-fried oats flour(P<o.05).The sulfur and methyl contents in the stir-fried oat flour were higher than those in the raw flour,while nitrogen oxide content in the former was lower than that in the latter.Stir-fried oat flour possessed a total of 78 identified flavor substances.The process of stir-frying boosts the oxidation decomposition of unsaturated fatty acids aldehydes and heterocyclic compounds produced by the Maillard reaction,so the flavor substances of stir-fried oat flour are richer.Conclusions:Stir-fried oat flour,containing diverse types of flavor substances,experienced more obvious flavor changes throughout the storage period than raw oat flour.
文摘为了改善燕麦粉加工的适应性,选用植物乳杆菌(Lactobacillus plantarum HH-LP56)分别对燕麦生粉和不同糊化度(13%、17%、24%、30%、34%)燕麦熟粉进行发酵改性,探究乳酸菌发酵对燕麦粉的游离氨基酸、淀粉酶活性、还原糖含量和热特性,以及燕麦-小麦复配面团的流变发酵特性和馒头质构特性的影响。结果表明:乳酸菌发酵促进了燕麦生粉中游离氨基酸的释放,增加了燕麦生粉和熟粉中淀粉酶活性和还原糖含量。将发酵改性燕麦生/熟粉与小麦粉进行复配,改善了面团的发酵特性,制得的馒头比体积上升,硬度下降,馒头的品质特性得到有效改善。
