During storage of shredded cabbage, characteristic sulfurous volatile compounds are formed affecting cabbage aroma both negatively and positively. Selected ion flow tube-mass spectrometry (SIFT-MS) was used to measure the concentration of cabbage volatiles during storage. The volatile levels of cabbage samples were measured at pH 3.3 to 7.4 at 4 °C for 14 d, and pH 3.3 at 25 °C for 5 d in order...

Volatile sulfur compounds (VSCs) are a major class of chemicals associated with odor from animal feeding operations (AFOs). Identifying and quantifying VSCs in air is challenging due to their volatility, reactivity, and low concentrations. In the present study, a canister-based method collected whole air in fused silica-lined (FSL) mini-canister (1.4 L) following passage through a calcium chlor...

The effects of double packaging on lipid oxidation, color, and volatile production were determined to establish a modified packaging method to improve quality changes in irradiated raw turkey meat. Sliced raw turkey breast and thigh meats were aerobically, vacuum- or double (vacuum and aerobic)-packaged, electron beam irradiated at 2.5 kGy, and then stored under refrigerated temperature. For th...

BACKGROUND The gaseous headspace above naïve Escherichia Coli (E. coli) cultures and whole human blood inoculated with E. coli were collected and analyzed for the presence of trace gases that may have the potential to be used as novel, non-invasive markers of infectious disease. METHODS The naïve E. coli culture, LB broth, and human whole blood or E. coli inoculated whole blood were incubated...

Highlights The largest contributors to odor activity values (OAV) were heptanoic acid (23.5%), hexanoic (17.6%), indole (14.7%), and dimethyl disulfide (DMDS) (9.50%). Measurements of volatile organic compounds (VOC) greater from plots where manure was surface-applied than with incorporated manure. Emissions DMDS trisulfide (DMTS) (0.318 0.074 µg m -2 min -1 , respectively) for beef cattle fed ...

introduction: the lymphatic system provides one of the main paths for the spread (metastasis) of cancer from one part of body to another. hodgkin’s diseases, lymphocytic leukemia, various metastatic disease and many lymph node disorders can be assessed by lymphoscintigraphy. radionuclide lymphoscintigraphy has been used for many years to define lymphatic drainage of melanoma. the most common ra...

Chemical cues, such as volatile organic compounds (VOCs), are often essential for insects to locate food. Relative the volume of studies on role VOCs in insect-plant relationships, emitted by dung and carrion mediating behavior insect decomposers is understudied. Such relationships may provide a mechanistic understanding temporal axis community assembly processes decomposing communities. We foc...