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投稿时间:2023-04-18
投稿时间:2023-04-18
中文摘要: 该研究以新梨7 号梨汁为主要原料,添加不同体积比的南果梨汁制作混合梨汁。对混合梨汁的基本理化指标、总酚、总黄酮含量及抗氧化性进行测定,采用顶空-气相色谱-离子迁移谱(headspace-gas chromatography-ion migration spectroscopy,HS-GC-IMS)分析挥发性成分,并结合模糊数学感官评定方法,确定适宜的原料配比。结果表明,新梨7 号梨汁与南果梨汁体积比为7∶3 时,感官评价最优,综合评价总分为6.28,总酚含量、总黄酮含量较高,DPPH 自由基清除率、ABTS+自由基清除率较强,且挥发性物质的种类及含量较多。因此,确定新梨7 号梨汁与南果梨汁以体积比7∶3 进行混合梨汁加工。
Abstract:This study mainly focused on the production of mixed pear juice by adding different proportions(volume ratios)of Nanguo pear juice to Xinli 7 pear juice. The basic physical and chemical indicators,total phenolic content,total flavonoid content,and antioxidant activity of mixed pear juice were determined. The volatile components were analyzed using headspace-gas chromatography-ion mobility spectroscopy(HS-GCIMS),and the appropriate raw material ratio was determined using a fuzzy mathematical sensory evaluation method. The results showed that when the ratio of Xinli 7 pear juice to Nanguo pear juice was 7∶3(volume ratio),the sensory evaluation was the best,with a comprehensive evaluation score of 6.28. The contents of total phenols and total flavonoids were relatively high,and the DPPH free radical scavenging rate and ABTS+ free radical scavenging rate were high,and there were many types and contents of volatile substances. Therefore,the study recommended the production of mixed pear juice with a 7∶3(volume ratio)ratio of Xinli 7 pear juice and Nanguo pear juice.
keywords: mixed pear juice physical and chemical indicators volatile components sensory evaluation raw material ratio
文章编号:202408005 中图分类号: 文献标志码:
基金项目:2020 年河北省重点研发计划项目(20327110D)
作者 | 单位 |
李明初1,陈志周2,刘文慧3,季佳琪1,李冬霞1,谭雅宁1,王颉1,牟建楼1* | 1.河北农业大学食品科技学院,河北保定 071000;2.河北农业大学机电工程学院,河北保定 071000;3.北京汇源食品饮料有限公司,北京 100000 |
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