原子吸收光谱法检测大蒜制品中微量元素锗

李 茜，张春芝，王文军，周 宇

(济宁医学院公共卫生学院，山东济宁 272067)

摘要[目的] 研究不同大蒜制品中锗元素含量的差别。[方法] 采用马弗炉灰化样品，火焰原子吸收光谱法测定以金乡紫皮蒜为原料加工而成的黑蒜、蒜蓉辣酱、脱水蒜片、蒜粉、糖醋蒜5种制品中锗的含量。[结果]试验表明，黑蒜中锗含量为1.384 mg/g，蒜蓉辣酱中锗含量为0.784 mg/g，脱水蒜片中锗含量为0.913 mg/g，蒜粉中锗含量为0.956 mg/g，糖醋蒜中锗含量为0.827 mg/g。5种蒜制品中均含有锗元素，其含量由多到少依次为黑蒜、蒜粉、脱水蒜片、糖醋蒜、蒜蓉辣酱。[结论]研究可为大蒜及大蒜制品的开发利用提供参考依据。

关键词火焰原子吸收光谱法；大蒜；锗

中图分类号S509.9

基金项目济宁市科技计划项目(2013jnwk69，2013jnwk65，2013jnwk66，2013jnwk74)。

作者简介李茜(1987- )，女，山东菏泽人，助教，硕士，从事食品质量与安全研究。

收稿日期2015-06-15

AtomicAbsorptionSpectrumMethodtoDetectTraceElementsGermaniuminGarlicProducts

LIQian,ZHANGChun-zhi,WANGWen-junetal(SchoolofPublicHealth,JiningMedicalUniversity,Jining,Shandong272067)

Abstract[Objective] To study the differences of germanium content in different garlic products. [Method] Samples were ashed by muffle furnace, and germanium content in black garlic, garlic sauce, dehydrated garlic, garlic powder, sweet and sour garlic five garlic products made by Jinxiang garlic were determined by flame atomic absorption spectrometry. [Result] The results show that the content of germanium in black garlic, garlic sauce, dehydrated garlic, garlic powder, sweet and sour garlic are 1.384, 0.784, 0.913, 0.956, 0.827 mg/g, respectively. Five kinds of garlic products contain germanium, the content in order from more to less is black garlic, garlic powder, dehydrated garlic, sweet and sour garlic, garlic sauce. [Conclusion] The study can provide reference basis for development and utilization of garlic and products.

KeywordsAtomicabsorptionspectrometry;Garlic;Germanium

大蒜是百合科葱属多年生草本植物蒜的地下鳞茎[1]，具有抗菌消炎、抗衰老、抗疲劳、预防癌症、保护心血管、改善糖代谢等作用[2-3]。目前市面上大蒜制品种类繁多，有蒜片、蒜粉、糖醋蒜、蒜蓉辣酱和黑蒜等。

蒜片，第一代蒜制品，制作简单，然而由于工艺还不成熟，导致有效成分大量流失，使保健效果大打折扣。后经工艺流程改良为选料、预处理、漂洗、切片、再漂洗、甩水、烘干、过筛分级、包装，制成脱水蒜片，生产效率和产品质量都有提高[4]。蒜粉，主要成分是一、二、三、四硫醚，具有广谱抗菌和抑菌、杀菌作用。糖醋蒜，含有丰富的蛋白质、脂肪、糖、维生素及人体所需的各种氨基酸、微量元素和多种挥发性硫化合物等对人体有益的物质[5]。……