نتایج جستجو برای: headspace solid

تعداد نتایج: 191043  

Journal: :Dendrobiology 2021

Styrax is a gorgeous species combined with high medicinal and ornamental values, however, information about its floral scents limited. This study aimed to reveal the scent compounds dynamic changes in flowering process of japonicus, S. grandiflora calvescens. Static headspace solid-phase microextraction coupled gas chromatography-mass spectrometry was adopted present study. The results showed t...

Mansoor Anbia, Morteza Khazaei

In this paper, the possibility of using a new ordered nanoporous carbon as a new fiber in headspace solid phase microextraction (HS-SPME) to determine of mononitrotoluenes (MNTs) in waste water is demonstrated. The structural order and textural properties of the ordered nanoporous carbon were studied by X Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) images and nitrogen adsorpti...

Journal: :Food Packaging and Shelf Life 2022

This article studies the migration of MOAH from hot melt adhesives used in multilayer laminates into food simulants. First, initial concentration a group compounds selected as markers several was determined by headspace solid phase microextraction coupled to gas chromatography mass spectrometry (HS-SPME-GC-MS), using previously optimised method. Then, fraction and studied. The analysed with fla...

Journal: :Food Chemistry 2021

Abstract 2-Acetyl-1-pyrroline (2-AP) has been widely reported as a key contributor to the popcorn-like aroma of fragrant rice (Oryza sativa). To gain greater understanding its contribution in both and non-fragrant rice, sensory profiling was conducted with trained panel examine properties six boiled samples, three varieties. The intensity popcorn note an orthonasal odour, retronasal flavour aft...

Journal: :Environmental science & technology 2004
Amlan Ghosh Muhammed Mukiibi Wendell Ela

Recent revision of the arsenic in drinking water standard will cause many utilities to implement removal technologies. Most of the affected utilities are expected to use adsorption onto solid media for arsenic removal. The arsenic-bearing solid residuals (ABSR) from adsorption processes are to be disposed of in nonhazardous landfills. The Toxicity Characteristic Leaching Procedure (TCLP) tests ...

Journal: :Pesquisa Agropecuária Tropical 2023

ABSTRACT Rice blast caused by the Magnaporthe oryzae pathogen is a major disease in this crop, and may cause devastating losses. This study aimed to investigate profile of Waitea circinata mycorrhiza volatile compounds antagonism M. oryzae, under different growth periods temperatures, using completely randomized design. Volatile organic were extracted headspace solid phase microextraction analy...

Farahmand, E, Mohtasebi, S, Razavi, H,

Background and Objectives: Sourdough processing is a well-known method to improve food flavor. One of the most important lactic acid bacteria isolated from sourdoughs is Lactobacillus sanfranciscensis. Because of the bacterial ability for acidification and liberation of the volatile compound precursors, it can strongly affect dough rheology and aromatic properties. In this study, the best condi...

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