摘要
为了更准确鉴别枫香脂(枫脂)原料的掺杂情况,在不同产地的纯净枫脂中加入淀粉和松脂模拟掺杂枫脂,分析掺杂前后枫脂的理化性质和枫脂精油主要成分含量的变化,以建立一种枫香脂掺杂辨伪多指标分析的检验方法。结果表明:掺入淀粉前,枫脂无碘显色反应,掺入淀粉后,碘显色反应明显;按照不同比例掺入松脂后,酸值、皂化值、紫外吸收峰数和峰值以及高效液相图谱均呈现易于鉴别、变化灵敏的特征值;且枫脂精油α-蒎烯、β-蒎烯和β-石竹烯的含量变化明显。以此方法的一个或几个指标的结合,可更灵敏准确地进行枫香脂原料的掺杂辨伪。
To identify more accurately about the adulteration of Chinese sweetgum oleoresin,starch and pine resin were added to the pure Chinese sweetgum oleoresin from different regions. Physical and chemical properties of Chinese sweetgum oleoresin and main components and contents of essential oil were analyzed before and after adulteration. Multi-index analytical test method of the identification of adulteration in Chinese sweetgum oleoresin was put forward depending on the above studies. The results indicated that the pure Chinese sweetgum oleoresin did not cause iodine chromogenic reaction,but after mixed with starch,iodine chromogenic reaction was obvious. The acid value,the saponification value,the ultraviolet absorption peak and the high performance liquid chromatography had presented different changes. They were easy to be identified after mixed with pine resin in different proportions,and the contents of α-pinene,β-pinene and β-caryophyllene of essential oil of Chinese sweetgum oleoresin changed obviously. The combination of one or a few indicators of the analytical test methods could be sensitive to verify the identification of adulteration in Chinese sweetgum oleoresin.
出处
《生物质化学工程》
CAS
北大核心
2016年第2期24-28,共5页
Biomass Chemical Engineering
基金
国家林业科技推广项目(2014-39)
国家公益性行业科研专项资助项目(200704033)
江苏省高校优势学科建设工程项目资助(无编号)
关键词
枫香脂原料
掺杂辨伪
多指标
分析检验方法
Chinese sweetgum oleoresin
identification of adulteration
multi-index
analytical test methods
