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投稿时间:2023-08-07
投稿时间:2023-08-07
中文摘要: 为实现葛根的全质化利用,将葛根制成全粉并用于重组米的制备,评价葛根全粉对重组米蒸煮特性、质构特性和微观结构的影响。研究发现,随着葛根全粉添加量的增加重组米的L*值降低,而ΔE 值增加。重组米在葛根全粉添加量为0%时糊化度最低,为69.27%,但随着添加量的增加糊化度无显著性差异(p>0.05);而碘蓝值随着葛根全粉添加量的增加而呈减小的趋势,20%时最低,为15.55。不同葛根全粉添加量下重组米蒸煮吸水率无显著性差异,蒸煮吸水率范围为217.84%~235.17%,高于市售原米,但是低于市售重组米;蒸煮损失率和膨胀率都随着添加量的增加呈先减小后增加趋势。葛根全粉的添加显著增加重组米的黄酮和多酚含量,添加量20%时分别为3.80 mg/g 和2.42 mg/g,相对于原米其含量增加2.62 倍和3.56 倍。与市售重组米和原米相比,添加葛根全粉后的重组米截面呈蜂窝状,有密集的微孔,重组米的硬度、黏性、弹性和咀嚼性增加。
Abstract:To retain all the nutritional components in Pueraria lobata,P.lobata powder was used to prepare recombinant rice.In addition,the effects of adding P.lobata powder on the cooking characteristics,texture characteristics,and microstructure of recombinant rice were systematically evaluated.It was found that the L*value of recombinant rice decreased with the increase in P. lobata powder added,while the ΔE value increased. The lowest gelatinization degree of recombinant rice was 69.27% when the addition of P. lobata powder was 0%,and there were no significant differences with the increase of the addition amount(p>0.05). The iodine blue value showed a decreasing trend with the increase of the addition amount of P. lobata powder,with the lowest value at 20%,which was 15.55.There were no significant differences in the water absorption rate under different amounts of P. lobata powder. The water absorption rate ranged from 217.84% to 235.17%,which was higher than the commercially available raw rice but lower than the commercially available recombinant rice.The cooking loss rate and expansion rate both showed a trend of first decreasing and then increasing with the increase of powder addition.The addition of P.lobata powder significantly increased the flavonoid and polyphenol content of recombinant rice. With a 20% addition,the flavonoid content was 3.80 mg/g and the polyphenol content was 2.42 mg/g,which was approximately 2.62 and 3.56 times higher than that of the raw rice. Compared with commercially available reconstituted rice and raw rice,the cross-section of the recombinant rice is honeycomb-shaped,with dense micropores. Additionally,the hardness,viscosity,elasticity,and chewiness of recombinant rice increased after the addition of P.lobata powder.
keywords: Pueraria lobata powder recombinant rice cooking characteristics texture characteristics microstructure
文章编号:202420007 中图分类号: 文献标志码:
基金项目:湖北省重点研发计划(助企纾困)项目(2022BAD112)
作者 | 单位 |
施建斌1,隋勇1,熊添1,蔡沙1,李书艺2,邵济民3,梅新1* | 1.农业农村部农产品冷链物流技术重点实验室/湖北省农业科学院农产品加工与核农技术研究所/湖北省农业科技创新中心农产品加工研究分中心,湖北 武汉 430064;2.武汉轻工大学硒科学与工程现代产业学院,湖北 武汉 430023;3.湖北葛娃食品有限公司,湖北 钟祥 431900 |
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