首页|海藻酸钠及复合磷酸盐对组织化豌豆蛋白品质的影响

海藻酸钠及复合磷酸盐对组织化豌豆蛋白品质的影响

Effect of Sodium Alginate/Compound Phosphate on the Quality of Extruded Pea Protein

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为改善豌豆蛋白模拟肉制品的品质,以豌豆蛋白(PPI)为原料,添加海藻酸钠(SA)、复合磷酸盐(CP),使用带有冷却模具的双螺杆挤压机,在不同温度下制备高湿组织化豌豆蛋白(EPPI),探究组织化产品的复水性、持油性、氮溶解指数、质构特性、色差、感官、微观结构等指标,评价其品质.结果表明,加入0.1%SA的组织化产品的复水性提高了 44.15%,加入0.3%SA的挤出物样品的NSI(5.10)、组织化度(1.793)及感官评分(7.85)达到最大值.SA和CP的加入,使豌豆蛋白产品色泽加深.CP使得组织化蛋白产品复水率下降21.86%,且对弹性影响不显著.蛋白质在挤压机筒内发生变性,分子链展开的同时,疏水基团暴露,增强了蛋白质与油之间的相互作用,导致持油性增加19.39%.加入0.3%的CP后蛋白产品的组织化度达到最大值1.806,扫描电镜观察发现产品具有较明显的纤维结构.结论:添加适当含量的海藻酸钠(0.3%)及复合磷酸盐(0.3%),可改善组织化豌豆蛋白的品质特性.
In this paper,pea protein(PPI)with sodium alginate(SA)and phosphate complex(CP)was used as raw material to improve the quality of pea protein simulated meat products.The quality of the organised pea protein was e-valuated by examining the rehydration,oil retention,nitrogen solubility index,textural properties,colour difference,sensory and microstructure of the organised product.The results showed that the addition of 0.1%SA increased the rehy-dration of the organised product by 44.15%,and the extrudates with 0.3%SA achieved the maximum NSI(5.10),de-gree of organisation(1.793)and sensory score(7.85).The denaturation of the protein in the extruder barrel and the ex-posure of the hydrophobic groups while the molecular chains unfolded enhanced the interaction between the protein and the oil causing a 19.39%increase in the oil-holding properties.The addition of 0.3%CP resulted in a maximum of 1.806 organisational degree of the protein product,which was observed by scanning electron microscopy to have a more pronounced fibrous structure.Thus,appropriate levels of sodium alginate(0.3%)and phosphate complex(0.3%)improved the quality characteristics of the organised pea protein product.

pea proteinsodium alginatecomplex phosphatehigh-moisture extrusionorganization

于晓薇、彭慧慧、岳明慧、张姗姗、王思花、张静、王鑫、马成业

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山东理工大学 农业工程与食品科学学院 山东淄博 255000

杭州膳策食品科技有限公司 杭州 310018

山东健源生物工程股份有限公司 山东烟台 265400

豌豆蛋白 海藻酸钠 复合磷酸盐 高水分挤压 组织化

招远工业创新基金项目

2018281

2024

中国食品学报
中国食品科学技术学会

中国食品学报

CSTPCD北大核心EI
影响因子:1.079
ISSN:1009-7848
年,卷(期):2024.24(6)
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