利用果汁加工废物作为益生菌酸奶中的益生菌成分:对微生物短链脂肪酸生产的影响
Melike Demirkol1, Zekai Tarakçi2
1Department of Food Engineering, Faculty of Engineering and Architecture Tokat Gaziosmanpaşa University Tokat Türkiye.
Food science & nutrition
|July 15, 2025
概括
来自果汁废物的果汁可以成为酸奶中的益生菌来源,促进有益的肠道细菌和短链脂肪酸 (SCFA). 消费者更喜欢含有1%果,杏仁或桃子果汁的酸奶,这表明功能性食品的发展潜力.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 营养科学 营养科学
背景情况:
- 果汁加工会产生大量的废物,主要是果汁,这种废物往往被充分利用.
- 益生菌是不可消化的食品成分,通过选择性地刺激结肠中的一种或有限数量的细菌的生长和/或活动,对宿主产生有益影响.
- 酸奶是一种流行的益生菌食品,可以用功能成分来增强,以改善其健康益处.
研究的目的:
- 为了评估果汁 (大白,桃子,果,葡萄) 作为益生菌酸奶中的益生菌来源.
- 通过分析短链脂肪酸 (SCFA) 生产来确定体外益生菌效应.
- 评估果汁渣对酸奶的质量特征和消费者接受度的影响.
主要方法:
- 果汁被添加到酸奶中以不同的比例.
- 进行了体外发酵,并使用气相色谱分析了SCFA成分.
- 进行了单糖类分析.
- 对益生菌培养物的微生物学分析 (Streptococcus thermophilus, Lactobacillus delbrueckii ssp. 菌种) 进行了分析. 布尔加里克斯 (Bulgaricus, Lactobacillus acidophilus) 的研究进行了.
- 对酸奶质量进行了感官评估.
主要成果:
- 在含有果汁的酸奶样本中观察到酸盐,丁酸盐和酸盐 (SCFA) 的显著增加 (p < 0.05).
- 葡萄糖和银河糖是被发现的主要单糖.
- 乳杆菌酸性菌 (Lactobacillus acidophilus) 显示,桃子和杏仁果汁的益生菌利用率有所提高.
- 含有1%果,杏仁和桃子果汁的酸奶获得了更高的消费者偏好分数.
- 在储存期间,益生菌计数保持稳定.
结论:
- 果汁有效地起到益生菌作用,促进SCFA的产生,有益于肠道微生物群.
- 桃子和杏仁果汁是对Lactobacillus acidophilus的特别有效的益生菌来源.
- 在酸奶中将1%的果汁加入酸奶是可行的,并提高了消费者接受度.
- 果废料是开发功能性食品和益生菌成分的有价值,未得到充分利用的资源.
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