共查询到13条相似文献,搜索用时 78 毫秒
1.
<正>固定化生长细胞(lmmobilized GrowingCell)是70年代开始研究的新兴技术.起初人们的注意力主要集中于各种固定化方法的探讨,近年来已转向应用方面的研究. 相似文献
2.
3.
4.
5.
PVA膜固定化酵母发酵酒精的研究 总被引:1,自引:0,他引:1
以聚乙烯醇(PVA)和阴离子交换树脂混合制成的生物膜作为固定化酵母载体进行酒精发酵的研究,结果表明:发酵的最适条件为pH5.0,温度30℃,多次批量发酵时,酒精最高生成量可达5.74g/100ml,残糖为0.36g/100ml。进行流速为20ml/h的连续发酵20d,发酵稳定后酒精含量保持在5.50g/100ml左右。 相似文献
6.
7.
8.
Tom Brnyik Antnio Vicente Jos Machado Cruz Jos Teixeira 《Journal of the Institute of Brewing》2002,108(4):410-415
This work demonstrated the technological feasibility of the three‐phase airlift bioreactor (ALR) with brewing yeast immobilized on spent grains (a brewing by‐product) for continuous beer production. The optimum fermentation performance of the one stage immobilized cell bioreactor was achieved at residence times between 18–25 h (dilution rate 0.04–0.055 h?1) and was characterized by an apparent degree of attenuation in the range of 70–80%. The productivity of the system in terms of ethanol concentration in green beer (ca. 4.2%) was satisfactory. Although the diacetyl concentration in the young beer was high (0.32 mg L?1 at D = 0.04 h?1) it is speculated that the level could be reduced by cell growth control, aeration and temperature optimisation. The immobilized yeast fermentation in the ALR was shown to be robust in recovery after process upsets. 相似文献
9.
固定化酵母用于食醋发酵的技术研究 总被引:1,自引:0,他引:1
文中主要针对固定化酵母在食醋发酵中应用的有关工艺条件、使用效果、停产期贮存以及杂菌污染等问题进行了试验总结,为固定化酵母在食醋行业中的应用提供了一定的工艺技术借鉴作用。 相似文献
10.
Three carrier materials (porous glass beads, DEAE‐cellulose, diatomaceous earth) for immobilized primary fermentation of beer were tested on a 1.6 litre scale. The influence of the carrier materials on flavour compounds in the green beer was analysed. The nature of the carrier affected the concentrations of some flavour compounds in a yeast strain specific manner. The findings suggest that the most appropriate material for immobilized primary fermentation of beer depends on the yeast strain used and the beer characteristics desired. 相似文献
11.
12.