酶萃取及组氨酸Heyns化合物加香对再造梗丝品质的影响
Study on the quality of reconstruction tobacco stem preparation based on enzyme extraction process combined with fragrance enhancement of histidine heyns compound
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摘要: 为改善再造梗丝产品香气平淡、杂气较多的问题,对其原有制备工艺进行优化调整,具体为以组合酶萃取代替温水萃取,辅以组氨酸 Heyns 化合物(His-H)进行回填加香,并采用核磁共振波谱(NMR)技术、气相色谱-质谱联用法等对工艺调整前后再造梗丝中试产品常规化学成分、细胞壁主要组分和感官品质的变化进行探讨。 结果表明:萃取时使用的最优溶液应为质量分数 0. 8% Ec 和质量分数 0. 4% Ep 的组合酶溶液,萃取后产品质软色浅;回填阶段添加质量分数 0. 25%的 His-H 后,再造梗丝香气质提升,杂气减少,刺激性下降,感官品质整体优于对照梗丝;工艺调整后再造梗丝中试产品的常规化学成分保持协调,中性香气物质总含量提升约 27. 0%,细胞壁主要组分(纤维素、果胶和木质素)含量降低率超过 15. 0%,所制卷烟烟气透发性优于对照品,木质气下降,香气量明显增加,吸食品质明显提升。
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关键词:
- 再造梗丝 /
- 酶萃取 /
- 组氨酸Heyns化合物 /
- 回填加香
Abstract: In order to improve the disadvantages of high cell wall content and inadequate aroma in the reconstruction tobacco stem (RTS) products, the original preparation process was optimized and adjusted. Specifically, a combinationof enzyme extraction was used instead of warm water extraction, supplemented with histidine Heyns compound(His-H) for backfilling and flavoring. The contents of cell wall materials and neutral flavor substances of RTS products were analyzed by NMR technology and GC / MS, respectively. The effects of new preparation process of RTS on the quality of last products were studied by sensory evaluation in RTS cigarettes. The results showed that the optimal enzyme extraction concentration was complex enzyme solution (0. 8% Ec+0. 4% Ep ) and the product was getting “soft” and “faded” after extraction. The sensory quality of RTS product with the addition of 0. 25% histidine Heyns compound was better than that of the control RTS. After process adjustment, the conventional chemical composition of two new reconstructed products remains coordinated. The contents of neutral flavor substances were increased by 27. 0% and the contents of cell wall materials of them were all decreased above 15. 0%. The sensory evaluation results also showed that the aroma volume of the new product increased significantly after process adjustment, which was better than the control product in terms of the permeability of the smoke, and therefore could significantly reduce the wood gas and improve the smoking quality. -
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