Effect of Plantago major L. seed mucilage on physicochemical, rheological, textural and sensory properties of non-fat yogurt

Applied Food Research Pub Date : 2025-01-01 DOI:10.1016/j.afres.2024.100687

Mojtaba Yousefi , Elham Khanniri , Nasim Khorshidian

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Abstract

Seed mucilages are water-soluble polysaccharides that can be used as gelling agents, stabilizers, emulsifiers, and coatings in the food industry. The aim of the present study was to evaluate the effect of Plantago major L. seed mucilage (PSM) at different levels (1, 3, and 5 % w/v) on quality and sensory properties of non-fat yogurt during refrigerated storage for 21 days. The results revealed a significant decrease in pH (increase in acidity) by adding PSM. Fortified yogurts with different concentrations of PSM exhibited lower whey loss compared to plain yogurts, while storage time had an adverse effect. The apparent viscosity and dynamic moduli (Gʹ, Gʺ) of samples enhanced with increasing levels of PSM and they were higher in yogurts containing PSM. The addition of PSM decreased the adhesiveness and increased the hardness, cohesiveness, gumminess, and springiness of yogurts. Evaluation of sensory properties demonstrated that the treatments containing 5 % PSM received the highest scores regarding taste, mouthfeel, appearance, and overall acceptability, which showed significant differences compared to other yogurt samples (p<0.05). It can be concluded that PSM at a concentration of 5 % is a good choice to improve the characteristics of non-fat yogurt which can be of practical use in industrial production.

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车前草种子粘液对脱脂酸奶理化、流变、质构及感官特性的影响

种子粘液是水溶性多糖，可在食品工业中用作胶凝剂、稳定剂、乳化剂和涂层。本试验旨在研究车前草种子粘液（PSM）在不同浓度（1、3、5% w/v）下对脱脂酸奶冷藏21 d后品质和感官特性的影响。结果表明，添加PSM显著降低了pH值（酸度增加）。与普通酸奶相比，添加不同浓度PSM的强化酸奶乳清损失较低，而储存时间对乳清损失有不利影响。样品的表观粘度和动态模量（G′，G′）随PSM添加量的增加而增加，且含PSM的酸奶的表观粘度和动态模量（G′，G′）更高。PSM的加入降低了酸奶的黏附性，增加了酸奶的硬度、黏结性、胶性和弹性。感官特性评估表明，含有5% PSM的处理在味道、口感、外观和总体可接受性方面得分最高，与其他酸奶样品相比有显著差异（p<0.05）。结果表明，添加浓度为5%的PSM是改善脱脂酸奶特性的较好选择，可在工业生产中实际应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Food Research

CiteScore

4.50

自引率

0.00%

发文量