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Original Article

Ultrastructure of longissimus dorsi myofibrillar proteins and heat-induced gels as observed with atomic force microscopy: effects of pH values and sodium ions

, , , , &
Pages 34-41 | Received 23 Aug 2018, Accepted 27 Dec 2018, Published online: 20 Jan 2019

Figures & data

Figure 1. Typical AFM height images of myofibrillar proteins in different concentrations of NaCl at various pH values. a, b, c stand for myofibril proteins were treated by 0.1 M, 0.3 M, and 0.6 M NaCl, respectively, and 1 to 3 mean pH = 5.5, 6.5, 7.5

Figure 1. Typical AFM height images of myofibrillar proteins in different concentrations of NaCl at various pH values. a, b, c stand for myofibril proteins were treated by 0.1 M, 0.3 M, and 0.6 M NaCl, respectively, and 1 to 3 mean pH = 5.5, 6.5, 7.5

Figure 2. Roughness of myofibrillar proteins in different concentrations of NaCl at various pH values

The same salt concentration with different letters (a–c) are different (P < 0.05). The same pH with different letters (x–z) are different (P < 0.05).
Figure 2. Roughness of myofibrillar proteins in different concentrations of NaCl at various pH values

Figure 3. Typical AFM height images of gels in different concentrations of NaCl at various pH values

a, b, c stand for myofibril proteins treated by 0.1 M, 0.3 M and 0.6 M NaCl, respectively, and 1 to 3 mean pH = 5.5, 6.5, 7.5.
Figure 3. Typical AFM height images of gels in different concentrations of NaCl at various pH values

Figure 4. Roughness of gels in different concentrations of NaCl at various pH values

The same salt concentration with different letters (a–c) are different (P < 0.05). The same pH with different letters (x–z) are different (P < 0.05).
Figure 4. Roughness of gels in different concentrations of NaCl at various pH values