Gómez Antonio, López Lucía, Miranda José M, Trigo Marcos, Barros-Velázquez Jorge, Aubourg Santiago P
Department of Food Technology, Marine Research Institute (CSIC), 36208 Vigo, Spain.
Department of Analytical Chemistry, Nutrition and Food Science, School of Veterinary Sciences, University of Santiago de Compostela, 27002 Lugo, Spain.
Foods. 2025 Apr 23;14(9):1465. doi: 10.3390/foods14091465.
Red macroalgal flour resulting from commercial phycocolloid extraction has been shown to include valuable preservative compounds.
This study focused on the preservative effect of a gelatin-based packaging system including sp. flour during refrigerated storage of fillets. Different microbial and chemical indices related to quality loss were determined in fish muscle during a 6-day storage period at 4 °C.
Compared with gelatin-packaged control samples, those packaged in the system including the algal flour presented significantly lower microbial development (aerobic bacteria, psychrotrophic bacteria, and proteolytic bacteria) and significantly lower chemical indices related to microbial development (pH and trimethylamine). With respect to lipid oxidation, there was significantly greater retention of peroxides and significantly lower formation of secondary oxidation products in the samples packaged with the algal flour. Additionally, the algal flour group presented significantly less lipid hydrolysis.
A preservative effect was derived from the addition of flour to a gelatin-based packaging system during refrigerated storage of . This study supports the practical and valuable use of sp. flour and addresses the current global interest in natural sources of preservative compounds and the use of marine byproducts.
商业性提取藻胶后产生的红色大型海藻粉已被证明含有有价值的防腐剂化合物。
本研究聚焦于一种基于明胶的包装系统在冷藏储存鱼片期间的防腐效果，该包装系统包含 种海藻粉。在4°C下储存6天的过程中，测定了鱼肉中与质量损失相关的不同微生物和化学指标。
与明胶包装的对照样品相比，用包含海藻粉的系统包装的样品显示出显著更低的微生物生长（需氧菌、嗜冷菌和蛋白水解菌）以及与微生物生长相关的显著更低的化学指标（pH值和三甲胺）。关于脂质氧化，用海藻粉包装的样品中过氧化物的保留量显著更高，二次氧化产物的形成显著更低。此外，海藻粉组的脂质水解显著更少。
在冷藏储存 期间，向基于明胶的包装系统中添加海藻粉可产生防腐效果。本研究支持了 种海藻粉的实际和有价值用途，并回应了当前全球对防腐剂化合物天然来源及海洋副产品利用的关注。
