食品科学 ›› 2009, Vol. 30 ›› Issue (21 ): 320-323.doi: 10.7506/spkx1002-6300-200921074

• 生物工程 • 上一篇    下一篇

旧金山乳杆菌与自然发酵燕麦酸面团发酵剂中β- 葡聚糖含量及其分子量的分布

张 坤1,黄卫宁1,*,堵国成2,王宏兹3,周坚强4,BOISVERT Johanne4   

  1. 1.江南大学 食品科学与技术国家重点实验室 2.江南大学生物工程学院 3.福建福马食品集团有限公司 4.加拿大农业与农业食品部国际科学合作局
  • 收稿日期:2009-08-05 出版日期:2009-11-01 发布日期:2010-12-29
  • 通讯作者: 黄卫宁 E-mail:wnhuang@jiangnan.edu.cn
  • 基金资助:

    加拿大农业部国际交流与合作项目(CCSIC-Food-00107);国家现代农业产业技术体系建设专项经费资助项目(nycytz-14)

Content and Molecular Weight Distribution of β-Glucan in Spontaneously-fermented and L. sanfranscensis-fermented Oat Sourdough

ZHANG Kun1,HUANG Wei-ning1,*,DU Guo-cheng2,WANG Hong-zi3,ZHOU Joe4,BOISVERT Johanne4   

  1. 1. State Key Laboratory of Food Science and Technology, Jiangnan University,Wuxi 214122, China;2. School of Biotechnology,
    Jiangnan University, Wuxi 214122, China;3. Fujian Fuma Food Group Co. Ltd., Jinjiang 330011, China;4. Agriculture and
    Agri-Food Canada, International Scientific Cooperation Bureau, Ottawa KIA 0C5, Canada
  • Received:2009-08-05 Online:2009-11-01 Published:2010-12-29
  • Contact: HUANG Wei-ning1 E-mail:wnhuang@jiangnan.edu.cn

摘要:

主要研究3 种不同的燕麦酸面团发酵剂(旧金山乳杆菌发酵、30℃和35℃自然发酵)发酵过程中β-葡聚糖含量和分子量分布的变化。结果表明:35℃自然发酵的酸面团发酵剂中β-葡聚糖含量最高,30℃自然发酵居中,旧金山乳杆菌发酵最低;旧金山乳杆菌发酵的酸面团发酵剂的β-葡聚糖分子量分布与峰值分子量在发酵过程中基本不变,且分子量分布在55~2.5 × 104kD 的β-葡聚糖占41%,高于其他发酵剂;30℃自然发酵酸面团发酵剂中,分子量大于20kD 的β-葡聚糖的含量接近40%;35℃自然发酵的酸面团发酵剂中β-葡聚糖的分子量分布范围较广,且小分子量的β-葡聚糖含量较高。

关键词: 燕麦, 酸面团发酵剂, 旧金山乳杆菌, β-葡聚糖, 分子量分布

Abstract:

Spontaneously-fermented (at 30 or 35℃) and L. sanfranscensis-fermented oat sourdough was compared for differences in changes in content and molecular weight distribution of β-glucan during fermentation. Results indicated that the highest content of β-glucan was determined in 35 ℃ spontaneously fermented oat sourdough, and the lowest content of β-glucan in L. sanfranscensis-fermented oat sourdough. The molecular weight distribution and molecular weight peak (Mp) in L. sanfranscensis-fermented oat sourdough did not exhibit significant change. Molecular weight of β-glucan ranging 55-2.5 × 104 kD exhibited the highest population in L. sanfranscensis-fermented oat sourdough, which reached 41%. The population of molecular weight of β-glucan of higher than 20 kD in 30 ℃ spontaneously fermented oat sourdough was close to 40%. In addition, the lower molecular weight distribution of β-glucan in 35 ℃ spontaneously fermented oat sourdough was the widest.

Key words: oat sourdough, L. sanfranscensis, &beta, -glucan, molecular weight distribution

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