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Outline
In the pursuit of developing high-quality low-salt fish gelatin emulsion gel products, this study undertook a comprehensive investigation into the effects of varying concentration gradients of potassium chloride (KCl) and calcium chloride (CaCl2) on the gel properties and structural characteristics of glycosylated fish gelatin emulsion gels. Specifically, the concentration gradients examined were 100, 200, 400, and 800 mmol/L. A multifaceted experimental approach was employed, encompassing analyses of particle size, Zeta potential, texture profile analysis (TPA), water holding capacity, rheological properties, and scanning electron microscopy (SEM). The results demonstrated that as the salt ion concentration increased, several key parameters exhibited significant changes. The absolute value of Zeta potential, along with gelstrength, hardness, adhesiveness, chewiness, and water holding capacity of the glycosylated fish gelatin emulsion gels, were all markedly reduced. In contrast, the particle size displayed an increasing trend. Furthermore, the impact of CaCl2 on the gel properties was substantially more pronounced than that of KCl. Under conditions of high salt ion concentration (800 mmol/L), the viscoelasticity and deformation resistance of the emulsion gels were significantly compromised. The gel network structure became loosened, and the formation process was considerably hindered. The findings revealed that excess salt ions disrupted hydrogen bonding and hydrophobic interactions, thereby inhibiting protein cross-linking and ultimately leading to a reduction in the properties of the emulsion gels.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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