Physicochemical Analysis of Hydrolyzed Collagen

The concentrated hydrolysed collagen was analysed by physical–chemical methods according to the standards in force and methods such as ash content (EN ISO 4047:2008), dry matter (EN ISO 4684:2006), total nitrogen and protein (ISO 5397:1996), pH (STAS 8619/3:1990), amino nitrogen (according to ICPI method), and electrical conductivity (EN ISO 27883:1997). The viscosity of concentrated hydrolysed collagen hydrolysate was determined with a Brookfield AMETEK DV2T TC-550 Viscometer (Brookfield, Toronto, ON, Canada) at a temperature of 25 °C. The particle size and zeta potential of collagen were evaluated by using a Dynamic Light Scattering (DLS) instrument from Malvern (Zetasizer Nano-ZS, Malvern Hills, UK).

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Berechet M.D., Gaidau C., Nešić A., Constantinescu R.R., Simion D., Niculescu O., Stelescu M.D., Sandulache I, & Râpă M. (2023). Antioxidant and Antimicrobial Properties of Hydrolysed Collagen Nanofibers Loaded with Ginger Essential Oil. Materials, 16(4), 1438.

Publication 2023

Collagen Electrical conductivity Nitrogen Physical Protein Stas Viscosity

Corresponding Organization : Universitatea Națională de Știință și Tehnologie Politehnica București

Other organizations : University of Novi Sad

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Variable analysis

independent variables

Concentrated hydrolysed collagen

dependent variables

Ash content
Dry matter
Total nitrogen and protein
Amino nitrogen
Electrical conductivity
Viscosity
Particle size
Zeta potential

control variables

Temperature (25 °C)

controls

No positive or negative controls were explicitly mentioned in the input.

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