The demonstration of the invariant lipid-free composition and the mechanism varying energy and the main components of some mammal meats consisting of muscle and adipose tissue

Abstract

The assumption of an invariant fat-free or lipid-free composition is prerequisite for most methods of the estimation of body composition in mammals including human but has not been theoretically demonstrated. To demonstrate theoretically and practically the invariant lipid-free composition and to understand the mechanism varying the main components of muscle and adipose tissue which have intimate relationships to lipid accumulation or obesity in mammals. Design: Whether the combinations of correlations among energy and main components in the hypothetical lipid-ratio variation model (L-varied model), which reflects the invariant lipid-free composition, are consistent with those in the practical mammal meats? Do lipid-ratio variation (L-varied) equations based on L-varied model agree closely with the corresponding regression equations of energy and main components on lipid content in their meats? We designed to solve these questions and compare those results. Results: These combinations of their correlations between the theoretical model and practical meats stated above were consistent with each other. And the L-varied equations were consistent with the regression equations stated above. Conclusion: It is clarified that variation in energy reserves and main components, at least moisture, protein, and ash in them follow L-varied model. Consequently, for the first time we clearly demonstrated here that the assumption of an invariant lipid-free composition is valid in skeletal muscles and peripheral adipose tissues of some mammals.