背景:家禽加工产生大量工业废物,其中含有丰富的胶原蛋白。这种废物可用于提取有价值的成分,如明胶,可用作哺乳动物明胶(猪和牛)的替代品。
结果:分析了明胶的产量,近似分析,pH值,颜色,粘度,绽放强度,和纹理轮廓分析。与天然鸡爪明胶(NCFG)(7.06%)相比,肉鸡鸡爪明胶(BCFG)的产率稍高(7.93%)。BCFG和NCFG的蛋白质含量分别为85.92%和82.53%。两种明胶的水分含量均在由欧洲明胶制造商(GME)给出的标准范围(<15)内。两种明胶在6.67%明胶浓度下显示出较高的起霜强度(NCFG为326g,BCFG为203g),归类为高开花。傅里叶变换红外(FTIR)分析显示酰胺I,酰胺A,NCFG为1636cm-1、3302cm-1、2945cm-1,BCFG为1738cm-1、3292cm-1、2920cm-1。在6.67%的明胶浓度下,硬度和粘结性值也高于先前研究的商业明胶。NCFG的pH值为5.43,BCFG为5.31。NCFG和BCFG粘度(4.43和3.85cP)均在商业明胶的最佳范围(2-7cP)内。
结论:因此,本研究得出的结论是,NCFG和BCFG在食品工业中具有巨大的潜力来替代商业哺乳动物明胶(猪和牛)。然而,需要进一步研究以优化提取过程。©2024化学工业学会。
BACKGROUND: Poultry processing generates a large amount of industrial waste, which is rich in collagen content. This waste can be utilized for the extraction of valuable components such as gelatin, which can be used as an alternative to mammalian gelatin (porcine and bovine).
RESULTS: Gelatins were analyzed for their yield, proximate analysis, pH, color, viscosity, bloom strength, and texture profile analysis. The yield of broiler chicken feet gelatin (BCFG) was slightly higher (7.93%) as compared to native chicken feet gelatin (NCFG) (7.06%). The protein content was 85.92% and 82.53% for BCFG and NCFG. Both gelatin had moisture content in the standard range (< 15) as given by Gelatin Manufacturers of Europe (GME). Both gelatins showed higher bloom strength (326 g for NCFG and 203 g for BCFG) at 6.67% gelatin concentration, classified as high bloom. Fourier-transform infrared (FTIR) analysis showed amide I, amide A, amide B at 1636 cm-1, 3302 cm-1, 2945 cm-1 for NCFG and 1738 cm-1, 3292 cm-1, 2920 cm-1 for BCFG. At 6.67% gelatin concentration, hardness and cohesiveness values were also higher than commercial gelatin previously studied. The pH values for NCFG were 5.43 and BCFG was 5.31. Both NCFG and BCFG viscosities (4.43 and 3.85 cP) were in the optimum range of commercial gelatins (2-7 cP).
CONCLUSIONS: Hence, the present study concluded that both NCFG and BCFG have a huge potential to replace commercial mammalian gelatins (porcine and bovine) in the food industries. However further studies should be done to optimize the extraction process. © 2024 Society of Chemical Industry.