Solid‐phase microextraction Arrow for the volatile organic compounds in soy sauce

Abstract

A novel solid‐phase microextraction Arrow was used to separate volatile organic compounds from soy sauce, and the results were verified by using gas chromatography with mass spectrometry. Solid‐phase microextraction Arrow was optimized in terms of three extraction conditions: type of fiber used (polydimethylsiloxane, polyacrylate, carbon wide range/polydimethylsiloxane, and divinylbenzene/polydimethylsiloxane), extraction temperature (40, 50, and 60°C), and extraction time (10, 30, and 60 min). The optimal solid‐phase microextraction Arrow conditions were as follows: type of fiber = polyacrylate, extraction time = 60 min, and extraction temperature = 50°C. Under the optimized conditions, the solid‐phase microextraction Arrow was compared with conventional solid‐phase microextraction to determine extraction yields. The solid‐phase microextraction Arrow yielded 6–42‐fold higher levels than in solid‐phase microextraction for all 21 volatile organic compounds detected in soy sauce due to the larger sorption phase volume. The findings of this study can provide practical guidelines for solid‐phase microextraction Arrow applications in food matrixes by providing analytical methods for volatile organic compounds.

Chromatographic identification of “green capping agents” extracted from Nasturtium officinale (Brassicaceae) leaves for the synthesis of MoO3 nanoparticles

“…The need of the present moment is to deepen the nanoparticle biogenic synthesis methodologies by defining the mechanism involved in the synthesis process and to individuate the phyto-stabilizer and phyto-reducer agents of the synthesized material. as well as to identify volatile organic compounds [44][45][46]. Different methods have been reported in the literature for determination of phytochemicals via HPLC, MS, UV, etc.…”

“…Thus, we were motivated to investigate the implication of N. officinale phytochemicals for the synthesis of metal oxide (Molybdenumoxide) nanoparticles via co-precipitation mechanism, followed by intricate analysis on identification and extraction of its phytochemicals. Over the recent years GC-MS profiling and HPLC studies have been frequently applied for the detection organic compounds of numerous plants and natural products [44][45][46][47][48][49]. [38][39][40][41][42][43].…”

“…Moreover the GC-MS provides scientific world a more economic and efficient option to scrutinize key fermentation products such as volatile fatty acids, acetic acid, esters, etc. as well as to identify volatile organic compounds [44][45][46]. Over the recent years GC-MS profiling and HPLC studies have been frequently applied for the detection organic compounds of numerous plants and natural products [44][45][46][47][48][49].…”

Facile preparation of stainless steel microextraction fiber via in situ growth of metal–organic framework UiO‐66 and its application to sensitive analysis of polycyclic musks

“…In Figure 3A, the analytes transferred from the solution to the headspace can be improved by increasing the temperature, and the peak areas of five polycyclic musks steadily increased from 30 to 55°C [2,11]. But the extracted amounts would decrease with the rising temperature if the temperature exceeds 55°C, due to the decrease of distribution coefficient between the fiber and the headspace [2,11]. SPME is an equilibrium distribution of the analytes between the extraction materials and sample solvent, requiring sufficient extraction time to achieve adsorption equilibrium [8,22].…”

“…SPME offers a powerful technique for the pretreatment of samples [1,2]. Currently, metal–organic framework (MOF) coated stainless steel (SS) fibers, possessing of the merits including large surface area of MOF [3], low cost, and excellent stability of the SS wire [4,5], have been studied as the most popular SPME materials.…”