Rapid identification of Staphylococcus aureus, Vibrio parahaemolyticus and Shigella sonnei in foods by solid phase microextraction coupled with gas chromatography–mass spectrometry

Wang, Yu; Liu, Sijing; Pu, Qikang; Li, Yongxin; Wang, Xixi; Yang, Jun; Yang, Danni; Yang, Yi; Yang, Jinling; Sun, Chengjun

doi:10.1016/j.foodchem.2018.04.088

Cited by 34 publications

(14 citation statements)

References 23 publications

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“…Szczerbanik, Scott, Paton, and Best (2005) found that the potassium permanganate significantly reduced the ethylene content and rate of fruit decay of Japanese pears, as well as improved fruit storage quality. This result is in agreement with those of Chiesa, Soncin, Biondi, Cattaneo, and Cantoni (2006) and Wang et al (2018) who reported that the use of CAR/PDMS and DVB/Car/PDMS provide different profiles of VOCs in ham and beef, respectively.…”

Section: Introductionsupporting

confidence: 93%

Effect of different preservation treatments on olecranon honey peach

Wang

Zhang

Liu

et al. 2019

J Food Process Preserv

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The olecranon honey peach is a new variety of peach with high consumer value in China. However, it softens and rots rapidly after harvest, which is difficult to store and transport, and requires specific handling and storage. Thus, we evaluated three pretreatment strategies to preserve quality—5% of calcium chloride, ethylene adsorbent, and hot water treatments—followed by storage at room (28–35°C) or low temperature (1–3°C), measured physical and chemical indices, and the sensory appeal of the fruit during storage. Free and nonmobile water contents were also determined using low‐field NMR. Treatment with ethylene adsorbent and storage at low temperatures effectively preserved peach flavor, aroma, and appearance, and extended shelf life for up to 30 days after harvest. Fruit hardness was 4.5 kg/cm2, soluble solid content was 10% and 92% of the peaches retained their sensory appeal. Overall, this optimum preservation strategy has minimal effects on consumer value. Practical applications Several studies have reported that peaches soften and rot rapidly after harvest, making storage and transportation difficult. The olecranon honey peach is a new variety of peach with distinct storage and preservation requirements. As it is a new variety, handling and storage strategies need to be optimized for efficient preservation. Our results demonstrated that treatment with an ethylene absorbent followed by low‐temperature storage preserves peach flavor, aroma, and appearance. Furthermore, shelf life was extended for up to 30 days after harvest. Thus, we had identified the ideal pretreatment and storage strategy for the preservation of olecranon honey peaches without affecting sensory appeal and commercial value.

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Section: Introductionsupporting

confidence: 93%

Effect of different preservation treatments on olecranon honey peach

Wang

Zhang

Liu

et al. 2019

J Food Process Preserv

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“…The compound 3‐methyl‐1‐butanol has already been observed in some bacteria's headspace like in Staphylococcus aureus , Vibrio parahaemolyticus , and Shigella sonei. 30 The phenylethyl alcohol ( 12 ) was also found in some bacteria's headspace by Wang et al 30 …”

Section: Resultsmentioning

confidence: 95%

“…The compound 3-methyl-1-butanol has already been observed in some bacteria's headspace like in Staphylococcus aureus, Vibrio parahaemolyticus, and Shigella sonei. 30 The phenylethyl alcohol (12) was also found in some bacteria's headspace by Wang et al 30 The metabolite 10 (eluted at 15.54 min) in F. solani and C. gloeosporioides samples was identified as 2-nonanone. This compound could be detected from the second day of analysis for F. solani and only in the fourth day for C. gloeosporioides.…”

Section: Compounds Identificationmentioning

confidence: 94%

Detection and discrimination of Carica papaya fungi through the analysis of volatile metabolites by gas chromatography and analysis of variance‐principal component analysis

Terra

Queiroz

Terao³

et al. 2020

Journal of Chemometrics

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Conventional detection and identification of the fungi causing postharvest diseases in fruits are time-consuming, laborious, and can only be performed after the manifestation of symptoms. In this work, an alternative method based on headspace analysis, and which allows the early detection of fungi species frequently found papaya fruit, is presented. Volatile compounds of four in vitro fungi cultures (Alternaria alternata, Colletotrichum gloeosporioides, Fusarium solani, and Lasiodiplodia theobromae) were extracted using solid-phase microextraction (SPME) and analyzed by gas chromatography coupled with mass spectrometry. The resulting chromatographic fingerprints were explored by conventional principal component analysis (PCA) and analysis of variance (ANOVA)-PCA. Decomposition of the original matrix, according to the factors proposed in the experimental design, by ANOVA before applying the PCA improved the distinction of the control and fungi samples. The main chromatographic peaks referring to the metabolites produced by each species were successfully identified using the proposed analysis. A primary alcohol with five carbons and phenylethyl alcohol were observed in all fungi species and so could be used as an indicative of postharvest disease. Although unique metabolites were detected for all fungi species, only those from C. gloeosporioides and another from F. solani could be surely identified, such as thymolmethyl and 3,6-dimethylhept-6-en-4-yn-3-ol, respectively. The in vitro results obtained are promising, and it is expected that the biomarkers detected in this work will be useful in future development of methods for the early detection and classification of papaya fungi species.

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“…Solid‐phase microextraction (SPME) is a simple, rapid, and solvent‐free sample preparation technique which was introduced by Arthur and Pawliszyn . At present, SPME has been widely used for sampling various volatile and semi‐volatile analytes from environmental , food , herbal medicines , and biological samples . These applications can be achieved using commercial SPME fibers, such as polydimethylsiloxane, polydimethylsiloxane/divinylbenzene, and polyacrylate.…”

Section: Introductionmentioning

confidence: 99%

Layer‐by‐layer self‐assembly of a novel covalent organic frameworks microextraction coating for analyzing polycyclic aromatic hydrocarbons from aqueous solutions via gas chromatography

Tian

Hou

et al. 2020

J of Separation Science

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In this study, a new covalent organic framework, consisting of tetra(4‐aminophenyl)porphyrin and tris(4‐formyl phenyl)amine, was layer‐by‐layer immobilized on stainless‐steel wire as a coating for microextraction. The fabrication process was easy and controllable under mild conditions. The as‐grown fiber was applied to extract polycyclic aromatic hydrocarbons in aqueous solution via head‐space solid‐phase microextraction. Furthermore, it was analyzed by gas chromatography with a flame ionization detector. A wide linear range (0.1–50 µg/L), low limits of detection (0.006–0.024 µg/L, signal‐to‐noise ratio = 3), good repeatability (intra‐fiber, n = 6, 3.1–8.50%), and reproducibility (fiber to fiber; n = 3, 5.79–9.98%), expressed as relative standard deviations, demonstrate the applicability of the newly developed coating. This new material was successfully utilized in real sample extraction with a satisfactory result. Potential parameters affecting the extraction efficiency, including extraction temperature and extraction time, salt concentration, agitation speed, sample volume, desorption temperature, and time, were also optimized and discussed.

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Rapid identification of Staphylococcus aureus, Vibrio parahaemolyticus and Shigella sonnei in foods by solid phase microextraction coupled with gas chromatography–mass spectrometry

Cited by 34 publications

References 23 publications

Effect of different preservation treatments on olecranon honey peach

Effect of different preservation treatments on olecranon honey peach

Detection and discrimination of Carica papaya fungi through the analysis of volatile metabolites by gas chromatography and analysis of variance‐principal component analysis

Layer‐by‐layer self‐assembly of a novel covalent organic frameworks microextraction coating for analyzing polycyclic aromatic hydrocarbons from aqueous solutions via gas chromatography

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