Study on the change of metal elements over the medium-temperature Daqu starter-making process
-
摘要: 利用微波消解结合电感耦合等离子体质谱（ICP-MS）检测的方法测定了中温大曲制作过程中Na、K、As、Pb、Cd、Sn、Ti、Mg、Fe、Cu、Mn、Zn、Ca、Al、Ni、Cr和Ba 17种金属元素的含量,并借助SPSS统计学软件采用t检验分析了曲皮和曲心中对应元素的差异性。结果显示,绝大部分金属元素浓度在大曲发酵过程中含量变化较小,与发酵时间无显著相关性。曲心中的Cu和Fe元素随发酵时间出现显著下降,曲皮中则出现相应上升。曲心中的Zn随着发酵时间出现了上升,曲皮出现相反变化。三种金属元素含量在曲心和曲皮中随发酵时间的不同变化规律可能主要源于发酵过程中厌氧型和好氧型微生物的选择性迁移。
-
关键词:
- 中温大曲 /
- 金属元素 /
- 发酵时间 /
- 微波消解 /
- 电感耦合等离子体质谱仪
Abstract: Using microwave digestion combined with inductively coupled plasma mass spectrometry ( ICP-MS) , the change of17 metal elements including Na, K, As, Pb, Cd, Sn, Ti, Mg, Fe, Cu, Mn, Zn, Ca, Al, Ni, Cr and Ba were measured in the medium-temperature Daqu starter over the manufacturing process. With the employment of SPSS software, statistical analysis of the difference of related metal elements in the Daqu surface and Daqu core was applied using t-test.The results suggested that the overall content of metal elements during the fermentation varied slightly, and showed no clear correlation with starter fermentation time.The amount of Cu and Fe in the center of starter significantly decreased upon increasing fermentation time, which was reversed comparing with those in the out-layer starter. In the meantime, Zn concentration increased in the starter center but declined in the out-layer. The time-dependent concentration change of Cu, Fe and Zn might be linked to the preferential distribution of aerobic and anaerobic microbes in the starter.-
Keywords:
- medium temperature Daqu /
- metal elements /
- fermentation time /
- microwave digestion /
- ICP-MS
-
[1] 杨俊, 李丽, 张文学, 等.传统酿酒制曲应用中药材的规律及其现代意义探讨[J].酿酒科技, 2015 (1) :16-18. [2] 任道群, 唐玉明, 姚万春, 等.浓香型大曲曲外层和曲心的差异性研究[J].酿酒科技, 1997 (6) :13-14. [3] 王忠彦, 寇运同, 门芸, 等.高温大曲微生物区系的初步研究[J].酿酒科技, 1995, (3) :66-67. [4] 胡承, 邬捷锋, 沈才洪, 等.浓香型 (泸型) 大曲的研究及其应用[J].酿酒科技, 2004 (1) :33-36. [5] 姚万春, 唐玉明, 任道群, 等.泸州老窖国窖曲曲坯层次间微生物差异研究[J].酿酒, 2005, 32 (5) :35-37. [6] 沈才洪, 应鸿, 许德富, 等.大曲质量标准的研究 (第二报) :大曲“酯化力”的探讨[J].酿酒科技, 2005 (3) :17-20. [7] 李学思, 杨明先, 李亚凤.酒曲在培养及贮存过程中主要理化指标变化规律的探索和研究[J].酿酒, 2015, 42 (1) :83-85. [8] 王进, 李坚斌, 刘慧霞, 等.回用糖蜜酒精废液中砷、铅对酒精发酵的影响[J].广西轻工业, 2003 (4) :14-22. [9] 王进, 刘慧霞, 李坚斌, 等.糖蜜酒精废液回用中重金属对酒精发酵的影响[J].酿酒, 2004, 31 (3) :22-24. [10] 黄建华, 张煜行, 张希君, 等.金属离子对老白干酒曲酯化酶的影响[J].中国酿造, 2007, 26 (4) :24-26. [11] Brown P H, Welth R M, Cary E E.Nickel:A Micronutrient Essential for Higher Plants[J].Plant Physical, 1987, 85:801-804.
[12] 王夔.生命科学中的微量元素[M].北京:中国计量出版社, 1996. [13] 刘铮.中国土壤微量元素[M].南京:江苏科技出版社, 1996. [14] Pais I.The biological importance of titanium[J].Journal of Plant Nutrition, 1983, 6 (1) :3-131
[15] 马依群, 潘小敏.铝元素与人体健康关系的研究新进展[J].广东微量元素科学, 1999, 6 (9) :15-17. [16] 炊伟强, 敖宗华, 张春林, 等.泸州老窖大曲感官特征与微生物、理化指标和生化性能的关联研究[J].食品与生物技术学报, 2011, 30 (5) :761-766. [17] 范瑞梅, 张保国, 张洪勋, 等.克劳氏芽孢杆菌 (Bacillus clausii S-4) 吸附Zn2+的研究[J].环境工程学报, 2007 (8) :44-47.
计量
- 文章访问数:
- HTML全文浏览量:
- PDF下载量:
下载:
