啤酒花中矿物元素在生长期的动态变化研究  

Dynamic change of mineral elements in hops(Humulus Lupulus L.) in different developmental periods

作　　者：刘泽畅 王瑶[1,2] 刘玉梅[1] Liu Zechang;Wang Yao;Liu Yumei(College of Chemistry and Chemical Engineering,Xinjiang University,Urumqi 830046,China;Central Laboratory,Xinjiang Ecology and Geography Institute,Chinese Academy of Sciences,Urumqi 830041,China)

机构地区：[1]新疆大学化学化工学院,乌鲁木齐830046 [2]中国科学院新疆生态与地理研究所中心实验室,乌鲁木齐830041

出　　处：《农业工程学报》2019年第18期292-298,共7页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金项目(31660490,31360403)

摘　　要：利用电感耦合等离子体-质谱(ICP-MS)和电感耦合等离子体-发射光谱(ICP-OES)对不同种植地的青岛大花、札一和马可波罗3个新疆主产啤酒花品种中的22种矿物元素在生长期的含量进行跟踪测定。结果表明,啤酒花对矿物元素的吸收和积累存在“地域差异”和“时间差异”,其中Sr、Na、Rb、Li、Ba、Ga、Co和V的含量受种植地的影响较大;但在整个生长周期内,啤酒花对重金属无明显吸收和富集作用。基于22种元素的主成分分析结果进一步证实,前3个主成分的累计贡献率达到84.36%,且由PC1和PC2构成的得分散点图可以很好地区分不同产地的啤酒花样本;而由PC1和PC3组成的得分散点图主要可以区分啤酒花的“成熟度”。其中,Mg、K、Li、Na可以用来判别啤酒花的产区;Al、Pb、V对于评价啤酒花的成熟度具有较大价值。It is necessary to investigate the characteristics of absorption and accumulation of mineral elements during the growth of hops, and which is also important for scientific farming and fertilizing to get these valuable data or rules. In this study, a total of twenty-two mineral elements (Al, Pb, As, Cd, Ba, Ni, Mn, Cu, Sr, Co, Cr, Zn, Li, V, Fe, Ga, Rb, Cs, K, Ca, Na and Mg) derived from different hops samples were determined by using the methods of inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atomic emission spectrometry (ICP-OES). The varieties of hops for investigating were Tsingtao Flower, SA-1 and Marco Polo, which are three main hops varieties cultivated in Xinjiang, China;and hops samples were collected from different planting areas in different developmental periods. Results of the methodological evaluation showed that the established method was accurate and reliable, which could meet the requirements for simultaneous determination of multi-element derived from hops. The result of this study indicated that the content of the 22 analyzed elements in hops showed significant variation in the whole developmental periods of hops. And results also indicated that hops may have the characteristics of “areal differentiation” and “period differentiation” in the absorption and accumulation of these mineral elements. Specifically, the content of Sr, Na, Rb, Li, Ba, Ga, Co and V was greatly influenced by planting areas. Furthermore, during the whole developmental periods, all analyzed hops samples did not accumulate or absorb heavy metals such as Cd and Pb. Principal component analysis (PCA) was used to further investigate the relationships between the 22 mineral elements and hops maturity, as well as planting areas. The results of PCA indicated that the first three principal components could explain 84.36% of the total variance, which could be used as the feature vectors. And the elements of Ba, Ni, Mn, Cu, Co, Zn, Li, Fe, Ga, Rb, Cs and Ca showed great contribution on t

关 键 词：农产品 矿物质 主成分分析 啤酒花 生长期 动态变化 

分 类 号：TS207.3[轻工技术与工程—食品科学]