食品科学 ›› 2011, Vol. 32 ›› Issue (11): 137-140.doi: 10.7506/spkx1002-6630-201111030

• 生物工程 • 上一篇    下一篇

一株嗜热菌产耐热木聚糖酶对馒头品质和保质期的影响

王石峰,林孔亮,秦晓培,陈学敏,刘培培,郭小虎,张 波*   

  1. 北京联合大学应用文理学院
  • 出版日期:2011-06-15 发布日期:2011-05-13
  • 基金资助:
    国家“973”计划项目(2007CB707805)

Effect of Thermo-tolerant Xylanase from Thermophilic Geobacillus sp. PZH1 on the Quality and Shelf-life of Steamed Bread

WANG Shi-feng, LIN Kong-liang,QIN Xiao-pei,CHEN Xue-min,LIU Pei-pei,GUO Xiao-hu, ZHANG Bo*   

  1. College of Arts and Science, Beijing Union University, Beijing 100191, China
  • Online:2011-06-15 Published:2011-05-13

摘要: 研究嗜热细菌Geobacillus sp. PZH1产耐热木聚糖酶对馒头品质及保质期的影响作用。从嗜热细菌Geobacillus sp. PZH1制备木聚糖酶,添加到面粉中制作馒头,观察其对馒头品质和保质期的影响。结果表明:在馒头中添加适量的耐热木聚糖酶,能明显降低馒头的持水性,提高面筋网络的弹性,改变面团的加工及稳定性能,增大馒头体积,并能有效抑制馒头中细菌的生长,延长馒头的保质期。

关键词: 嗜热细菌, 耐热木聚糖酶, 面包品质, 保质期

Abstract: In this paper, the effect of thermo-tolerant xylanase from thermophilic bacterium Geobacillus sp. PZH1 on the quality and shelf-life of steamed bread was investigated. The results showed the thermo-tolerant xylanase significantly elevated the volume of steamed bread and improved its textural properties. Meanwhile, the xylanase restrained the bacterial growth and prolonged the shelf-life of steamed bread.

Key words: thermophilic bacterium, thermo-tolerant xylanase, bread quality, shelf-life

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