Assessment of the Physicochemical, Antioxidant, Microbial, and Sensory Attributes of Yogurt-Style Products Enriched with Probiotic-Fermented Aronia melanocarpa Berry Juice
Author:
Plessas Stavros1ORCID, Mantzourani Ioanna1, Terpou Antonia2ORCID, Bekatorou Argyro3ORCID
Affiliation:
1. Laboratory of Food Processing, Faculty of Agriculture Development, Democritus University of Thrace, 193 Pantazidou Str., 68200 Orestiada, Greece 2. Department of Agricultural Development, Agri-Food, and Natural Resources Management, School of Agricultural Development, Nutrition & Sustainability, National and Kapodistrian University of Athens, Evripos Campus, 34400 Evia, Greece 3. Department of Chemistry, University of Patras, 26504 Patras, Greece
Abstract
The aim(目的) of this study was to create(创建) various formulations of yogurt enriched with freeze(冻结)-dried adjuncts, namely(即) (i) probiotic Lactobacillus plantarum ATCC 14917 culture(文化), and (ii) L. plantarum ATCC 14917 fermented black chokeberry juice, along with a commercial(商业) starter culture(文化). The goal was to enhance(提高) functionality and optimize the nutritional(营养) value(价值) of the products. These new yogurt-style(风格) formulations were subsequently(随后) compared with commercially produced yogurt. All products demonstrated(演示) favorable(有利) physicochemical properties, and the probiotic strain(应变) consistently(一贯) maintained viable(可行) levels exceeding 7 log(日志) cfu/g throughout(遍及) the entire(整个) storage(存储) period(时期). The fermented milk produced with the adjunct-free L. plantarum cells, as well as the yogurt produced with the proposed(提出) lactobacilli-fermented chokeberry juice, exhibited the highest lactic acid(酸) production(生产) (1.44 g/100 g yogurt by the end of storage(存储)). Levels of syneresis were observed at lower(较低) values(价值) in yogurt produced with freeze(冻结)-dried fermented chokeberry juice. Yogurts prepared(准备) with the lactobacilli-fermented freeze(冻结)-dried chokeberry juice displayed elevated total(总) phenolic content(内容) and antioxidant capacity(容量) (25.74 µg GAE/g and 69.05 µmol TE/100 g, respectively(分别)). Furthermore, sensory tests revealed a distinctive(鲜明) fruity flavor(风味) in samples incorporating fermented juice. The results demonstrate(演示) that probiotic L. plantarum-fermented chokeberry juice enhances(提高) both the antioxidant capacity(容量) and the viability of beneficial(有益) bacteria(细菌) in yogurt while it can be readily(欣然) applied and commercialized, especially in the form of a freeze(冻结)-dried formulation.
Subject
Plant Science,Health Professions (miscellaneous),Health (social science),Microbiology,Food Science
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