不同年份多花黄精多糖和重金属含量与土壤关联性评价
Evaluation of the correlation between the content of polysaccharides and heavy metals in Polygouatum cyrtouema Hua.and soil in different years
吴江 1朱荣平 1樊成 2刘诗菡 3邱首哲 4徐怡 1胡晶鼎 1陈途1
作者信息
- 1. 咸宁市公共检验检测中心,湖北 咸宁 437000
- 2. 江西省卫生健康委员会,南昌 330006
- 3. 湖北科技学院药学院,湖北 咸宁 437000
- 4. 咸宁市农业科学院,湖北 咸宁 437000
- 折叠
摘要
为了测定湖北省咸宁市崇阳县2个发展规模较大的黄精种植基地中不同年份多花黄精生品、炮制品的多糖和重金属含量及对应种植环境中土壤重金属含量,采集10份不同年份多花黄精生品和10份土壤样品,根据2020年版《中华人民共和国药典》规定,对多花黄精生药进行炮制处理,并采用硫酸-蒽酮法对炮制品中的多糖含量进行测定,采用电感耦合等离子体质谱法测定多花黄精及对应土壤中重金属元素含量.结果表明,随着多花黄精生长年限的增加,多花黄精多糖的含量呈先升高后降低趋势,在比较不同年份的多糖含量时发现,3年生或4年生的多花黄精多糖含量较高;经炮制后,多花黄精重金属含量均有不同程度的降低;这2个种植基地土壤中重金属含量有差异,部分种植基地土壤中镉元素存在轻微污染现象,其他重金属元素在安全范围内.综合考虑多花黄精的生长周期、重金属含量和多糖含量等因素,多花黄精最佳采收年限为第3年或第4年,多花黄精品质较好.
Abstract
In order to determine the polysaccharides and heavy metals content of Polygouatum cyrtouema Hua.raw and processed prod-ucts from two large-scale Huangjing planting bases in Chongyang County,Xianning City,Hubei Province in different years,as well as the corresponding soil heavy metals content in the planting environment,10 Polygouatum cyrtouema Hua.raw products and 10 soil samples from different years were collected,according to the 2020 edition of the Pharmacopoeia of the People's Republic of China,the raw medicine Polygouatum cyrtouema Hua.was processed and the polysaccharides content in the processed product was determined us-ing the sulfuric acid anthrone method.The content of heavy metal elements in Polygouatum cyrtouema Hua.and corresponding soil was determined using inductively coupled plasma mass spectrometry.The results showed that as the growth years of Polygouatum cyrtoue-ma Hua.increased,the polysaccharides content of Polygouatum cyrtouema Hua.showed a trend of first increasing and then decreas-ing.When comparing the polysaccharides content of different years,it was found that the polysaccharides content of Polygouatum cyr-touema Hua.aged 3 or 4 years was higher;after processing,the heavy metals content of Polygouatum cyrtouema Hua.decreased to varying degrees;there was a difference in the heavy metals content in the soil of these two planting bases.Some planting bases had slight pollution of cadmium elements in the soil,while other heavy metal elements were within the safe range.Taking into account fac-tors such as the growth cycle,heavy metals content,and polysaccharides content of Polygouatum cyrtouema Hua.,the optimal harvest-ing period for Polygouatum cyrtouema Hua.was the third or fourth year,and the quality of Polygouatum cyrtouema Hua.was relatively good.
关键词
多花黄精/多糖/重金属/土壤/关联性Key words
Polygouatum cyrtouema Hua./polysaccharides/heavy metals/soil/correlation引用本文复制引用
基金项目
湖北省科技重大专项(社发领域重点研发计划)(2022BCE066)
出版年
2024
NETL
NSTL
万方数据