This comparison chart displays experimental specimens of table grapes used as a food model to evaluate the bioprotective efficacy of Lactic Acid Bacteria (LAB) against common fungal pathogens. The image is organized into a 2x3 grid. Row A shows grapes contaminated with Aspergillus niger, while Row B shows grapes contaminated with Botrytis cinerea. Column 'a' represents control samples without LAB treatment, demonstrating significant pathological progression including dark fungal outgrowths (A. niger) and extensive shriveling with brownish discoloration (B. cinerea) after 14 days at 4°C. Columns 'b' and 'c' demonstrate the inhibitory effects of Fructobacillus fructosus AREP6 and Lactobacillus plantarum MEP3, respectively. In these treated columns, the grapes maintain their green color, structural integrity, and smooth surface texture, illustrating the potential of these LAB strains as natural preservatives or biocontrol agents in food safety and preservation. The visual focus is on the prevention of mold-induced decay and the maintenance of specimen quality through probiotic intervention.

This diagnostic image displays six panels (a-f) of Extracted Ion Chromatograms (EIC) from an LC-MS/MS analysis, used for identifying marine biotoxins in contaminated seafood, relevant to Ciguatera Poisoning (CP). Each chromatogram plots intensity in counts per second (cps) against retention time (minutes), ranging from 2 to 10 minutes. The panels compare two extraction methods: an enzyme protocol (left column: a, c, e) and a standard mechanical protocol (right column: b, d, f). The EICs track sodium adducts [M + Na]+ for specific Ciguatoxin (CTX) groups: CTX4A (a, b), CTX3C (c, d), and C-CTX/I-CTX (e, f). Multi-colored peaks represent distinct congeners, such as 2,3,51-trihydroxyCTX3C and 51-hydroxyCTX3C, characterized by specific retention times and relative intensities. Variations in peak profiles between the left and right columns illustrate differences in extraction efficiency and matrix effects. This data is critical for food safety toxicology, enabling the identification and quantification of lipophilic polyether neurotoxins that cause human illness.

This diagnostic image displays four liquid chromatography-mass spectrometry (LC-MS) chromatograms for common tropane alkaloids: Atropine, Scopolamine, Anisodamine, and Homatropine. The content illustrates pharmacological analysis within toxicology and food safety domains. Each panel plots signal intensity (y-axis) against retention time (x-axis, in minutes) for a blank green tea sample spiked at the limit of quantification (LOQ). Key visual features include: 1) Atropine: A distinct peak at 3.47 minutes with subsequent complex matrix interference signals between 4-7 minutes. 2) Scopolamine: A primary peak at 3.16 minutes. 3) Anisodamine: Shows the highest relative signal intensity with a major peak at 2.98 minutes. 4) Homatropine: Displays a lower intensity main peak at 3.08 minutes relative to the other alkaloids. The chromatograms demonstrate the identification and quantification of these toxins, which are of clinical significance due to their potential for human poisoning from contaminated herbal infusions. The differing retention times and intensities illustrate the method's sensitivity and specificity for various tropane alkaloid species.