Inlab routine pro

Viscosity: The viscosity (expressed in mPa·s) was measured on a Brookfield DV-II+ Programmable Viscometer (Brookfield AMETEK, Milddleboro, MA, USA), with a LV-2(62) spindle, at 60 rotations per minute, and 25 °C.
pH: The pH values were measured with an InLab Routine Pro combined pH glass electrode with an integrated temperature probe (Mettler Toledo, Greifensee, Switzerland).
Solids content: The solids content (%) was determined by oven-drying 2 g of resin for 3 h at 120 °C. The weights of the resins before and after drying were measured. For each determination, three replicates were prepared.
FTIR: To obtain the Fourier transform infrared (FTIR) spectra, the TSSL, WF, and resins were cured at 100 °C until a constant weight was reached. Then, the formed resin films were powdered in an agate mortar. The FTIR spectra of the powdered resins was obtained using a VERTEX 70 FTIR spectrometer (BRUKER, Ettlingen, Germany) in the absorbance mode with a high sensitivity DLaTGS detector at room temperature. The spectra were recorded from 4000 cm⁻¹ to 500 cm⁻¹ with a resolution of 4 cm⁻¹.
Microscopy: The TSSL, WF dispersed in distilled water (20.2%), and TSSL+WF mixtures were analyzed directly at a magnification of 1000× with an optical microscope equipped with a MU500 Digital Camera (AmScope, Irvine, CA, USA).

The pH, ORP and electrical conductivity (EC) of hydrosols were measured using a pH/mV/ISE Meter (Seven Multi™ model S40, Mettler Toledo, Warsaw, Poland) equipped with a pH electrode (Inlab Routine Pro, Mettler Toledo), ORP electrode (Inlab Redox Pro, Mettler Toledo), and conductivity electrode (InlabLab 731, Mettler Toledo), respectively. The available chlorine concentration (ACC, including HOCl, OCl⁻, Cl₂, etc.) was determined by the iodometric method [54 ].

Prior to pH measurement, coated/non-coated sausages were homogenized with distilled water (2:8 ratio). Subsequently, Seven Multi™ (model S40, Mettler Toledo, Warsaw, Poland) pH meter equipped with a pH electrode (Inlab Routine Pro, Mettler Toledo) was used twice for pH determination in each sample.

One CLD tablet was placed with or without MG (one tablet) in a 50-mL plastic centrifuge tube containing 20 mL of warm distilled water (55°C). The centrifuge tube was allowed to stand at room temperature (ca. 25°C) for 10 min or 5 h. The mixture was then vortexed for 1 min to prepare a suspension. The subsequent treatments were immediately performed according to method I or II (see below). In separate experiments, the simple suspension prepared after 10 min soakage was centrifuged and the aqueous supernatant was directly subjected to HPLC analyses and pH measurements using InLab® Routine Pro (Mettler Toledo, Ohio, USA). The suspension preparation was performed three times for each CLD tablet in any of the experiments.

The oxidation–reduction potential (ORP), pH and electrical conductivity (EC) of hydrosols prepared on the basis of D and MC water were measured using a pH/mV/ISE Meter (Seven Multi™ model S40, Mettler Toledo, Warsaw, Poland) equipped with a pH electrode (Inlab Routine Pro, Mettler Toledo), ORP electrode (Inlab Redox Pro, Mettler Toledo) and conductivity electrode (InlabLab 731, Mettler Toledo), respectively.