浙江农业学报 ›› 2025, Vol. 37 ›› Issue (3): 654-666.DOI: 10.3969/j.issn.1004-1524.20240229

• 食品科学 • 上一篇    下一篇

蓝莓与铁皮石斛叶复合乳酸菌发酵饮料工艺优化与品质分析

乔慧茹1,2(), 房祥军2, 吴伟杰2, 刘瑞玲2, 陈杭君2, 邓尚贵1, 沙浩2, 郜海燕2,*()   

  1. 1.浙江海洋大学 食品与药学学院,浙江 舟山 316022
    2.浙江省农业科学院 食品科学研究所,农业农村部果品采后处理重点实验室,全省生鲜食品智慧物流与加工重点实验室,中国轻工业果蔬保鲜与加工重点实验室,浙江 杭州 310021
  • 收稿日期:2024-03-11 出版日期:2025-03-25 发布日期:2025-04-02
  • 作者简介:乔慧茹(1999—),女,河南许昌人,硕士研究生,研究方向为食品物流保鲜与品质调控。E-mail:1394174682@qq.com
  • 通讯作者: * 郜海燕,E-mail:spsghy@163.com
  • 基金资助:
    国家重点研发计划(2021YFD2100502-1-2);浙江省重点研发计划(2021C02015);浙江省“尖兵”“领雁”研发攻关计划(2023C04002);浙江省“三农九方”科技协作计划(2024SNJF034)

Process optimization and quality analysis of composite lactic acid bacteria fermented beverage with blueberries and Dendrobium officinale leaves

QIAO Huiru1,2(), FANG Xiangjun2, WU Weijie2, LIU Ruiling2, CHEN Hangjun2, DENG Shanggui1, SHA Hao2, GAO Haiyan2,*()   

  1. 1. College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, Zhejiang, China
    2. Key Laboratory of Post-Harvest Fruit Processing, Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Key Laboratory of Fruit and Vegetable Preservation and Processing, China National Light Industry, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021, China
  • Received:2024-03-11 Online:2025-03-25 Published:2025-04-02

摘要:

为提高铁皮石斛叶的资源利用率,本研究旨在探究乳酸菌发酵对蓝莓-铁皮石斛叶复合饮料品质和风味成分的影响,以开发一种具有独特口感、营养价值和健康益处的复合发酵饮料。以蓝莓和铁皮石斛叶为主要原料,以植物乳杆菌(Lactobacillus plantarum)为发酵菌种,制备蓝莓-铁皮石斛叶复合发酵饮料。通过单因素和正交试验优化蓝莓汁与铁皮石斛叶汁的体积比、蔗糖添加质量分数、植物乳杆菌接种体积分数和发酵时间,确定最佳发酵工艺参数。结果表明,最佳发酵参数为:蓝莓汁与铁皮石斛叶汁体积比为1∶1,蔗糖添加质量分数为6%,植物乳杆菌接种体积分数为2%,发酵时间为48 h。在此条件下,发酵饮料酸甜可口,可溶性固形物含量为9.47%,总糖含量为56.28 mg·mL-1,总酚含量为1.80 mg·mL-1,花色苷含量为13.21 mg·L-1,感官评分为84.50分。与发酵前相比,发酵后饮料的DPPH、ABTS+和羟自由基清除率分别提高13.50%、11.00%和17.88%。此外,共检出73种挥发性风味物质,以酯类、醇类、醛类和酚类化合物为主,其中壬酸乙酯、乙酸乙酯、丁酸乙酯、芳樟醇、1-壬醇、2-乙基-1-己醇、1-庚醇和1-戊醇含量较高。发酵促进酸类物质转化为酯类物质,显著提升了饮料的酯类物质含量,赋予其鲜甜柔润的口感。乳酸菌发酵显著改善了蓝莓-铁皮石斛叶复合饮料的品质和风味,提升了其抗氧化活性和营养价值。本研究为农副产品的深加工和高值化利用提供了新途径,具有重要的应用前景。

关键词: 发酵饮料, 工艺优化, 风味物质, 蓝莓, 铁皮石斛叶

Abstract:

To improve the resource utilization of Dendrobium officinale leaves, this study aimed to investigate the effects of lactic acid bacteria fermentation on the quality and flavor components of a blueberry-D. officinale leaf composite beverage, with the goal of developing a fermented beverage with unique taste, nutritional value, and health benefits. Using blueberries and D. officinale leaves as the main raw materials and Lactobacillus plantarum as the fermentation strain, a composite fermented beverage was prepared. Single-factor and orthogonal experiments were conducted to optimize the volume ratio of blueberry juice to D. officinale leaf juice, addition mass fraction of sugar, inoculation volume fraction of Lactobacillus plantarum, and fermentation time, thereby determining the optimal fermentation parameters. The results showed that the optimal fermentation parameters were a blueberry juice to D. officinale leaf juice ratio of 1:1, addition mass fraction of sugar of 6%, inoculation volume fraction of L. plantarum of 2%, and fermentation time of 48 h. Under these conditions, the fermented beverage exhibited a pleasant sweet-sour taste, with a soluble solid content of 9.47%, total sugar content of 56.28 mg·mL-1, total phenolic content of 1.80 mg·mL-1, anthocyanin content of 13.21 mg·L-1, and a sensory score of 84.50. Compared to the pre-fermentation state, the DPPH, ABTS+, and hydroxyl radical scavenging rates increased by 13.50%, 11.00%, and 17.88%, respectively. Additionally, 73 volatile flavor compounds were detected, primarily esters, alcohols, aldehydes, and phenols, with higher concentrations of ethyl nonanoate, ethyl acetate, ethyl butyrate, linalool, 1-nonanol, 2-ethyl-1-hexanol, 1-heptanol, and 1-pentanol. Fermentation promoted the conversion of acids to esters, significantly increasing the ester content and imparting a fresh, sweet, and smooth taste to the beverage. Lactic acid bacteria fermentation significantly improved the quality and flavor of the blueberry-D. officinale leaf composite beverage, enhancing its antioxidant activity and nutritional value. This study provides a new approach for the deep processing and high-value utilization of agricultural by-products, demonstrating significant application potential.

Key words: fermented beverage, process optimization, flavor substance, blueberry, Dendrobium officinale leaf

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