摘要
该文为了研究酿酒玉米稳定同位素,利用稳定同位素质谱仪测定了来自酿酒专用粮基地不同地块不同生长阶段酿酒玉米各部位的C、N稳定同位素比值,结果表明,各生长阶段,^15N/^14N均最易在酿酒玉米茎部富集,在根部贫化,而13C最易在酿酒玉米生长旺盛的部位富集;多施有机肥,有利于酿酒玉米富集^15N/^14N,使底茎、底叶、果实δ^15N偏高;多施非有机肥,会使底茎、底叶、果实δ^15N偏低;由于植物δ^13C受多种因素共同影响,海拔因素在该研究中未对酿酒玉米δ^13C产生显著影响。该文研究结果为监控酿酒玉米生长过程提供了初步理论数据。
In order to research the liquor-making maize’s stable isotopes, maize samples at different growth stages from different plots of special liquor-making grains base were collected and their stable isotope ratios of C and N in different parts were determined using isotope-ratio mass spectrometry. The results showed that ^15N/^14N was easily enriched in the stem and diluted in the root of liquor-making maize at all growth stages, while13C was easily enriched in the part where it vigorously grew. Addition of organic fertilizer supported the enrichment of ^15N/^14N in liquor-making maize, which increased the δ^15N values of bottom stem, bottom leaf and fruit. Conversely, addition of chemical fertilizer lowered the bottom stem, bottom leaf and fruit δ^15N values. Because plant δ^13C abundance was affected by multiple factors, changing of altitude did not make a significant effect on liquor-making maize δ^13C abundance. The results provided preliminary theoretical data for monitoring the growth process of liquor-making maize.
作者
张倩
谢正敏
安明哲
魏金萍
叶华夏
黄箭
ZHANG Qian;XIE Zhengmin;AN Mingzhe;WEI Jinping;YE Huaxia;HUANG Jian(Wuliangye Co.Ltd.,Yibin 644000,China;Key Lab of Solid-state Fermentation of Nongxiang Baijiu,Yibin 644000,China)
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2019年第24期27-32,共6页
Food and Fermentation Industries
基金
中国轻工业浓香型白酒固态发酵重点实验室开放基金项目—白酒稳定同位素研究(2017JJ006)
