The EC of the rice protein was measured according to the method described by Sha et al. [21 (link)]. The protein solution (1% w/w) was stirred at a constant temperature (20 °C) in a 1 L laboratory reactor with a stirrer. Soybean oil was added dropwise to the protein solution and emulsified with a high-speed homogenizer (HG-15A, Daihan, Wonju, Korea) at 20,000 RPM continuously. The conductivity of the emulsion was continuously measured with a pH/conductivity multimeter (SevenDirect SD23, Mettler Toledo, Nanikon, Switzerland) and used as a parameter to determine its inversion point. The amount of oil added to the inversion point of the emulsion was used to calculate the emulsifying capacity (mL oil/g sample).
Sevendirect sd23
Manufactured by Mettler Toledo
Sourced in Switzerland
The SevenDirect SD23 is a pH meter designed for laboratory use. It features a digital display and provides pH measurement capabilities.
Automatically generated - may contain errors
Lab products found in correlation
2 protocols using sevendirect sd23
1
Emulsifying Capacity of Rice Protein
2
Comprehensive Analytical Techniques for Water Quality
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Sample pH was measured
with a pH meter (FiveEasy F20 or SevenDirect SD20, Mettler Toledo,
Columbus, OH) and sample conductivity was measured with a pH/conductivity
meter (SevenDirect SD23, Mettler Toledo, Columbus, OH). TAN concentrations
were determined by the indophenol method using flow-injection analysis
(AA500 AutoAnalyzer, SEAL Analytical, Mequon, WI). A Dionex ICS-6000
was used to determine cation concentrations (IonPac SCS1 column, unsuppressed,
4 mM tartaric acid/2 mM oxalic acid eluent, 1.0 mL/min, 30 °C,
Thermo Scientific, Waltham, MA) and anion concentrations (IonPac AS22-4
μm column, suppressed, 4.5 mM Na2CO3/1.4
mM NaHCO3 eluent, 1.0 mL/min, 30 °C, Thermo Scientific,
Waltham, MA). Chemical oxygen demand (COD) was determined colorimetrically
by Hach Method 8000 using high-range (0–1,500 mg/L) reagent
kits (CHEMetrics, Midland, VA) with a DRB200 digital reactor block
and a DR1900 portable spectrophotometer (Hach Company, Loveland, Colorado).
Total organic and inorganic carbon (TOC and TIC) were measured using
a Shimadzu TOC-L autoanalyzer (Shimadzu Scientific Instruments, Inc.,
Columbia, MD).
with a pH meter (FiveEasy F20 or SevenDirect SD20, Mettler Toledo,
Columbus, OH) and sample conductivity was measured with a pH/conductivity
meter (SevenDirect SD23, Mettler Toledo, Columbus, OH). TAN concentrations
were determined by the indophenol method using flow-injection analysis
(AA500 AutoAnalyzer, SEAL Analytical, Mequon, WI). A Dionex ICS-6000
was used to determine cation concentrations (IonPac SCS1 column, unsuppressed,
4 mM tartaric acid/2 mM oxalic acid eluent, 1.0 mL/min, 30 °C,
Thermo Scientific, Waltham, MA) and anion concentrations (IonPac AS22-4
μm column, suppressed, 4.5 mM Na2CO3/1.4
mM NaHCO3 eluent, 1.0 mL/min, 30 °C, Thermo Scientific,
Waltham, MA). Chemical oxygen demand (COD) was determined colorimetrically
by Hach Method 8000 using high-range (0–1,500 mg/L) reagent
kits (CHEMetrics, Midland, VA) with a DRB200 digital reactor block
and a DR1900 portable spectrophotometer (Hach Company, Loveland, Colorado).
Total organic and inorganic carbon (TOC and TIC) were measured using
a Shimadzu TOC-L autoanalyzer (Shimadzu Scientific Instruments, Inc.,
Columbia, MD).
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