Effects of Gelatin-Saccharides Interactions on the Physicochemical Properties and in Vitro Digestion of Cold-set Gels
This study aimed to clarify the effects of physico-chemical interactions between gelatin and different saccharides (including allulose, fructose, fructo-oligosaccharides (FOS), and sucrose) on the properties (hardness, color, in-vitro digestibility, etc.) of gelatin-saccharide mixed gels. Gelatin wa...
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The editorial department of Science and Technology of Food Industry
2025-03-01
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| Series: | Shipin gongye ke-ji |
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| Online Access: | http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024030338 |
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| author | Xinyu ZHAI Xiaorui XING Ruican WANG Pixian ZHANG Shuo WANG |
| author_facet | Xinyu ZHAI Xiaorui XING Ruican WANG Pixian ZHANG Shuo WANG |
| author_sort | Xinyu ZHAI |
| collection | DOAJ |
| description | This study aimed to clarify the effects of physico-chemical interactions between gelatin and different saccharides (including allulose, fructose, fructo-oligosaccharides (FOS), and sucrose) on the properties (hardness, color, in-vitro digestibility, etc.) of gelatin-saccharide mixed gels. Gelatin was mixed with the various concentrations of saccharides at a high temperature and then cooled to prepare cold-set gels, with the texture and color of gels characterized using a texture analyzer and a colorimeter. Based on evident browning of the gels, the Maillard reaction-induced changes in reducing sugar and free amine contents as well as the UV-visible light absorption of Maillard reaction products in each gel were characterized. In addition, the gels’ protein molecular weight distribution, in-vitro protein digestibility, and the antioxidant properties of digesta were compared through SDS-PAGE, in-vitro digestion, and antioxidant assays. The results indicated that in terms of texture, gels with allulose and fructose were softer, with hardness ranging from 10.5 to 12.6 N, while those with sucrose and FOS were harder, with the highest hardness being 29.9 N and 22.2 N respectively. Except for sucrose (a non-reducing sugar), the Maillard reaction occurred to limited degrees in mixtures with 30%~50% saccharides, with a reducing sugar loss rate of less than 10%, and free amine content ranging from 3.6 to 3.8 mg/g. At 72% saccharide concentration, the maximum reducing sugar loss rate could reach 17.6%, with free amine content less than 3.2 mg/g, intensifying the Maillard reaction. Allulose exhibited higher Maillard reactivity compared to fructose, whereas FOS, containing about 50% reducing sugars, showed weaker reaction. Under mild thermal processing condition, the Maillard reaction caused slight crosslinking of gelatin subunits but did not significantly affect the in-vitro digestibility of protein, with an in vitro digestibility rate between 23% and 25%, but significantly increased the ABTS+ and DPPH free radical scavenging rates of the gel digesta (P<0.05). |
| format | Article |
| id | doaj-art-6f41a234f2574635bd0f8a027f36c50c |
| institution | DOAJ |
| issn | 1002-0306 |
| language | zho |
| publishDate | 2025-03-01 |
| publisher | The editorial department of Science and Technology of Food Industry |
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| series | Shipin gongye ke-ji |
| spelling | doaj-art-6f41a234f2574635bd0f8a027f36c50c2025-08-20T03:00:55ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062025-03-014659910710.13386/j.issn1002-0306.20240303382024030338-5Effects of Gelatin-Saccharides Interactions on the Physicochemical Properties and in Vitro Digestion of Cold-set GelsXinyu ZHAI0Xiaorui XING1Ruican WANG2Pixian ZHANG3Shuo WANG4Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaKey Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaTianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, ChinaKey Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaKey Laboratory of Food Nutrition and Safety, Ministry of Education of China, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaThis study aimed to clarify the effects of physico-chemical interactions between gelatin and different saccharides (including allulose, fructose, fructo-oligosaccharides (FOS), and sucrose) on the properties (hardness, color, in-vitro digestibility, etc.) of gelatin-saccharide mixed gels. Gelatin was mixed with the various concentrations of saccharides at a high temperature and then cooled to prepare cold-set gels, with the texture and color of gels characterized using a texture analyzer and a colorimeter. Based on evident browning of the gels, the Maillard reaction-induced changes in reducing sugar and free amine contents as well as the UV-visible light absorption of Maillard reaction products in each gel were characterized. In addition, the gels’ protein molecular weight distribution, in-vitro protein digestibility, and the antioxidant properties of digesta were compared through SDS-PAGE, in-vitro digestion, and antioxidant assays. The results indicated that in terms of texture, gels with allulose and fructose were softer, with hardness ranging from 10.5 to 12.6 N, while those with sucrose and FOS were harder, with the highest hardness being 29.9 N and 22.2 N respectively. Except for sucrose (a non-reducing sugar), the Maillard reaction occurred to limited degrees in mixtures with 30%~50% saccharides, with a reducing sugar loss rate of less than 10%, and free amine content ranging from 3.6 to 3.8 mg/g. At 72% saccharide concentration, the maximum reducing sugar loss rate could reach 17.6%, with free amine content less than 3.2 mg/g, intensifying the Maillard reaction. Allulose exhibited higher Maillard reactivity compared to fructose, whereas FOS, containing about 50% reducing sugars, showed weaker reaction. Under mild thermal processing condition, the Maillard reaction caused slight crosslinking of gelatin subunits but did not significantly affect the in-vitro digestibility of protein, with an in vitro digestibility rate between 23% and 25%, but significantly increased the ABTS+ and DPPH free radical scavenging rates of the gel digesta (P<0.05).http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024030338gelatinallulosefructo-oligosaccharidesmaillard reactionin-vitro digestionantioxidant |
| spellingShingle | Xinyu ZHAI Xiaorui XING Ruican WANG Pixian ZHANG Shuo WANG Effects of Gelatin-Saccharides Interactions on the Physicochemical Properties and in Vitro Digestion of Cold-set Gels Shipin gongye ke-ji gelatin allulose fructo-oligosaccharides maillard reaction in-vitro digestion antioxidant |
| title | Effects of Gelatin-Saccharides Interactions on the Physicochemical Properties and in Vitro Digestion of Cold-set Gels |
| title_full | Effects of Gelatin-Saccharides Interactions on the Physicochemical Properties and in Vitro Digestion of Cold-set Gels |
| title_fullStr | Effects of Gelatin-Saccharides Interactions on the Physicochemical Properties and in Vitro Digestion of Cold-set Gels |
| title_full_unstemmed | Effects of Gelatin-Saccharides Interactions on the Physicochemical Properties and in Vitro Digestion of Cold-set Gels |
| title_short | Effects of Gelatin-Saccharides Interactions on the Physicochemical Properties and in Vitro Digestion of Cold-set Gels |
| title_sort | effects of gelatin saccharides interactions on the physicochemical properties and in vitro digestion of cold set gels |
| topic | gelatin allulose fructo-oligosaccharides maillard reaction in-vitro digestion antioxidant |
| url | http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024030338 |
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