24 Meat refrigeration Fig. 2.3 Part of myofibril. Diagrammatic representation to show filament-array in longitudinal section with adjacent structures(source: Voyle, 1974) 8包 商88 ③原寓 Fig. 2.4 Cross-section of single fibre, showing myofibrils and other structures (source: Voyle, 1974) the fuel for contraction, but from which the larger enzyme molecules are The fluid within the fibrils is distributed between the microfilaments of the hexagonal lattice. After rigor in a muscle at rest length the filament lattice volume decreases and releases fluid into the spaces between the myofibrils, i.e. into the sarcoplasm. The permeability of the sarcolemma also hanges after rigor, and fluid, generally referred to as'drip', escapes into the extracellular space. The extent to which this happens depends upon the ultimate level of pH attained by the post-rigor musclethe fuel for contraction, but from which the larger enzyme molecules are excluded. The fluid within the fibrils is distributed between the microfilaments of the hexagonal lattice. After rigor in a muscle at rest length the filament lattice volume decreases and releases fluid into the spaces between the myofibrils, i.e. into the sarcoplasm.The permeability of the sarcolemma also changes after rigor, and fluid, generally referred to as ‘drip’, escapes into the extracellular space. The extent to which this happens depends upon the ultimate level of pH attained by the post-rigor muscle. 24 Meat refrigeration Fig. 2.3 Part of myofibril. Diagrammatic representation to show filament-array in longitudinal section with adjacent structures (source: Voyle, 1974). Fig. 2.4 Cross-section of single fibre, showing myofibrils and other structures (source: Voyle, 1974)