Physical characterization of chocolates prepared with various soybean and milk powders physical character soybean milk chocolate

Date

2023-02-01

Author

Tasoyan, Izlem Cansu
YOLAÇANER, ELİF
Öztop, Halil Mecit

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The physical characterization of chocolate products is vital in manufacturing, and the chocolate's processing time and composition directly influence physical properties, such as rheology and melting. The objective of this study was to investigate the effects of processing time and the ingredient types on the physical properties of milk chocolates containing soy milk powder and soy protein isolate. Characteristics of skimmed milk chocolate (SMC) and whole milk chocolate (WMC) were compared to soy milk chocolate and soy protein chocolate (SPC). Rheological data of chocolate products were fitted to Casson, Herschel-Bulkley, and Bingham models. The highest viscosity was observed for SPC samples, whereas yield stress was the highest for SMC samples after 2 hr of processing. The increase in milk and soy fats in the formulation softened the texture and decreased the whiteness index significantly (p < .05). PSD results show that SPC had the highest D90 (40.1 mu m) and the lowest specific surface area (893 m(2)/kg) after 6 hr of processing. SPC samples had the narrowest particle size distribution observed by the span values. X-ray diffraction analysis showed that all the samples had the desired Form V, crystal form. The differential scanning calorimetry thermogram was used to determine phase transitions and melting behaviors. At the end of processing, melting enthalpies (delta H-melt) were significantly lower (p < .05) in milk chocolates.

Subject Keywords

chocolate, functional food, physical properties, rheology, soy milk, PARTICLE-SIZE DISTRIBUTION, X-RAY-DIFFRACTION, COCOA BUTTER, RHEOLOGICAL PROPERTIES, FAT BLOOM, MELTING PROPERTIES, THERMAL-ANALYSIS, DARK CHOCOLATE, COLOR, POLYMORPHISM

URI

https://hdl.handle.net/11511/102642

Journal

JOURNAL OF TEXTURE STUDIES

DOI

https://doi.org/10.1111/jtxs.12744

Collections

Department of Food Engineering, Article

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Citation Formats

I. C. Tasoyan, E. YOLAÇANER, and H. M. Öztop, “Physical characterization of chocolates prepared with various soybean and milk powders physical character soybean milk chocolate,” JOURNAL OF TEXTURE STUDIES, pp. 0–0, 2023, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/102642.