【摘 要】
：
Saffron, the dried stigmas of Crocus sativus L., is a very expensive spice that is mainly used as a herbal medicine or food coloring and flavoring agent in different parts of the world.The amount of v
【机 构】
：
Department of Pharmacy, Peking University People's Hospital, Beijing 100044, China
【出 处】
：
第2届大连国际色谱学术报告会、第37届国际高效液相色谱及相关技术会议、第18届全国色谱学术报告会
论文部分内容阅读
Saffron, the dried stigmas of Crocus sativus L., is a very expensive spice that is mainly used as a herbal medicine or food coloring and flavoring agent in different parts of the world.The amount of volatile component of the essential oil in dried stigma tissues is the most important indicator for the quality of saffron.Various techniques have been used to extract and subsequently identify the volatile compounds present in saffron.Among these methods, USE has the advantages of high extraction efficiency, low equipment cost and ease operation, little or no sample preparation, and low extraction temperatures.In the present study, the volatile components of saffron were extracted by USE using five different solvents (diethyl ether, ethanol, ethyl acetate, dichloromethane and acetone), followed by their detection using GC-MS technique.Furthermore, the differences in flavor composition among saffron samples deriving from Tibet and Henan of China were also investigated.
其他文献
A rapid, accurate and sensitive method was developed and validated for simultaneous determination of steroid hormones and endocrine-disrupting compounds in infant urine.The target compounds were extra
Semicarbazide-sensitive amine oxidase (SSAO) catalyzes the deamination of methylamine and aminoacetone, producing toxic aldehydes, hydrogen peroxide and ammonia.SSAO activity appears to be associated
Free amino acids contents are very important information for studying the genotype, grow condition and environment of plants, and have been detected with many different methods.Here a profiling method
The detection and characterization of circulating tumor cells (CTC) in serum holds great promise for early diagnoses and optimized systemic therapy.However, low specificity, low sensitivity, and the t
Traditional Chinese Medicine (TCM) usually provides certain personalized treatment in diabetes mellitus (DM) according to different symptoms.However, these symptoms are obtained by clinic experiential
The novel magnetic molecularly imprinted polymers (MIPs) were prepared by using 17-β-Estradiol as template molecule, methacrylic acid as functional monomer, trimethylol propyl triacrylate as crosslink
Azobisisobutyronitrile is a compound often used as a radical initiator in polyacrylonitrile.The amount of AIBN must be strictly controlled; otherwise the product quality will be affected.And AIBN is h
A novel micro-solid-phase-extraction technique based on membrane protected molecularly imprinted polymer (MIP) for the extraction of hyperoside and isoquercitrin in rat plasma was developed.In this te
Purified terephthalic acid (PTA), as an important raw material, is primarily used for the production of polyester PET (Polyethylene terephthalate), polybutyl terephthalate(PBT) and etc.The contents of
Comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC × GC-TOFMS) is a technique highly suited for the separation and identification of complex mixtures su