与乳酸细菌和果泥一起发酵调节了Qiamagu果汁的挥发性特征和生物活性
Luqi Qin1, Jiahuan Zheng1, Bei Fan1
1Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Food research international (Ottawa, Ont.)
|November 4, 2025
概括
这项研究通过使用乳酸细菌 (LAB) 发酵和果泥,将Qiamagu (QMG) 转化为功能食品. 这一过程减少了的味道,增强了有益的化合物,改善了QMG.
科学领域:
- 食品科学与技术 食品科学与技术
- 农业科学 农业科学
- 生物技术是生物技术.
背景情况:
- 来自新疆的Brassica rapa L. (Qiamagu,QMG) 由于的味道和易腐烂性,其营销能力有限.
- 异硫酸酸盐和酸被确定为促进QMG不良性的关键化合物.
研究的目的:
- 描述导致QMG中异味的挥发性化合物.
- 为了评估乳酸细菌 (LAB) 发酵与果泥结合对QMG果汁风味和生物活性的影响.
- 评估加工的QMG的保质期和功能性质.
主要方法:
- 使用头空间固相微提取与气色谱质谱学 (HS-SPME-GC-MS) 结合分析的挥发性化合物.
- QMG果汁是用乳酸植物菌和乳酸植物菌发酵的,添加了新疆果泥.
- 进行了感官评估,生物活性测定 (尿酸抑制,超氧化物脱酶活性,多糖含量) 和储存测试.
主要成果:
- 发酵和果泥显著降低了硫化合物 (14,411.40至1089.30μg/L),并且增加了化物,和酒精,改善了香味.
- 感官评分从新鲜果汁的39.71提高到发酵样品的74.
- 增强的生物活性:尿酸抑制增加39.00%,SOD活性增加6.39%,多糖含量增加.
- 动力模型预测,在4°C的温度下,其保质期约为330天.
结论:
- 在LAB发酵过程中,添加了果泥,有效地减轻了QMG中的尖的味道.
- 这种综合方法显著提高了QMG的风味特征和生物活性特性.
- 该研究为开发QMG作为功能性食品成分奠定了科学基础,为其他Brassica L.食品提供了可通用的方法.
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