ArticleMolecules (Basel, Switzerland)2026
Processing Suitability and Flavor Profiles of Wagyu Beef Tallow from Different Anatomical Regions.
Article in Molecules (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study investigated the technological properties and volatile flavor profiles of tallow from three anatomical regions of Wagyu cattle, omental fats (OF), perirenal fats (PF), and subcutaneous fats (SF), smelted at temperatures ranging from 100 to 160 °C. The objective was to provide a theoretical basis for the targeted utilization of Wagyu fats. Results showed that smelting temperature significantly affected oil yield, with the highest yield obtained at 160 °C for all regions. PF exhibited the greatest oil yield, followed by OF and SF. Physicochemical analyses indicated that OF had the highest degree of unsaturation, whereas PF demonstrated superior hardness and oxidative stability. Microstructural and spectroscopic analyses, Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) were employed to characterize the samples, revealed that the compact protein structure of SF residues limited oil release, while the porous structures of OF and PF residues facilitated higher yields. With respect to flavor profiling, headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry (HS-SPME-GC-MS) was employed to analyze volatile compounds, identified aldehydes as the dominant flavor contributors in OF and PF, imparting fatty and citrus notes, whereas SF was characterized by a distinct creamy aroma primarily due to γ-butyrolactone. These regional differences were further validated by principal component analysis (PCA). Overall, PF obtained the highest comprehensive quality score. The integrated evaluation underscores the potential for precision-based utilization of Wagyu tallow: PF and OF are recommended for applications demanding high yield and intense flavor, whereas SF, characterized by its distinctive creamy aroma, is more suitable for specialized or niche products.
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