College of Aquaculture and Fisheries, Can Tho Univ., Nink Kieu District, Can Tho, Vietnam.
Dept. of Food Science and Technology, Tokyo Univ. of Marine Science and Technology, 4-5-7, Minato-ku, Tokyo, 108-8477, Japan.
J Food Sci. 2018 Jul;83(7):1888-1895. doi: 10.1111/1750-3841.14193. Epub 2018 Jun 15.
Influence of various phenolic compounds on physical properties and antioxidant activity of gelatin film from horse mackerel Trachurus japonicus scales was investigated. Tensile strength (TS) of the film was enhanced whereas elongation at break was declined by adding 1% to 5% phenolic compounds. Rutin was the most effective to improve the TS compared to the other tested phenolic compounds including ferulic acid, caffeic acid, gallic acid, and catechin. Gelatin films with the phenolic compounds showed the excellent UV barrier properties. FTIR spectra exhibited that wavenumber of amide-A band of films decreased with formation of hydrogen bonding between amino groups of gelatin and hydroxyl groups of the phenolic compounds. Gelatin film incorporated with rutin which has the largest number of hydroxyl groups among the tested compounds demonstrated the lowest wavenumber for the amide-A peak. It is indicated that hydroxyl groups contained in the phenolic compounds contribute to formation of hydrogen bonds involved in improvement of the mechanical properties of the films. The incorporation of the phenolic compounds with gelatin films also led to the increasing of total phenolic contents and DPPH radical scavenging activities. Thus, it is concluded that phenolic compounds can promote the quality of gelatin film.
Properties of gelatin film derived from horse mackerel scales can be improved by adding of phenolic compounds. Phenolic compounds containing a large number of hydroxyl groups should be selected to enhance physical properties of the gelatin film. A biodegradable film prepared from horse mackerel gelatin incorporated with phenolic compounds, which has good physical properties and antioxidant properties, can solve environmental problems caused by synthetic plastic materials.
研究了不同酚类化合物对马鲛鱼鳞片明胶膜物理性能和抗氧化活性的影响。添加 1%至 5%的酚类化合物可提高膜的拉伸强度（TS），而断裂伸长率则下降。与其他测试的酚类化合物（包括阿魏酸、咖啡酸、没食子酸和儿茶素）相比，芦丁最有效地提高了 TS。含酚类化合物的明胶膜具有优异的 UV 阻隔性能。傅里叶变换红外光谱（FTIR）表明，随着明胶氨基与酚类化合物羟基之间形成氢键，膜的酰胺-A 带的波数降低。在测试的化合物中，芦丁具有最多的羟基，因此其含有的明胶膜的酰胺-A 峰的波数最低。这表明酚类化合物中含有的羟基有助于形成参与改善膜力学性能的氢键。将酚类化合物与明胶膜结合也导致总酚含量和 DPPH 自由基清除活性的增加。因此，可以得出结论，酚类化合物可以促进明胶膜的质量。
通过添加酚类化合物可以改善马鲛鱼鱼鳞明胶膜的性能。应选择含有大量羟基的酚类化合物来增强明胶膜的物理性能。由含有酚类化合物的马鲛鱼明胶制成的可生物降解膜具有良好的物理性能和抗氧化性能，可以解决由合成塑料材料引起的环境问题。
