基于热风干燥的宜宾芽菜的加工工艺研究Study on Processing Technology of Yibin Sprouts Based on Hot Air Drying
徐明义,罗素琴,陈俊宏,张靖,王洋,杨强,叶阳
摘要(Abstract):
为解决传统宜宾芽菜原料在晾晒时受气候影响大和成品风味不突出等问题,试验用热风干燥替代自然晾晒,以亚硝酸盐含量、还原糖含量、pH和色度为指标,设置单因素试验,对不同长度的芽菜原料发酵时加入的糖类、接种菌种、糖浓度和盐浓度进行比较,再取最佳单因素条件进行风味物质研究。结果表明,经热风干燥后,芽菜最优加工条件为长度20 cm,添加红糖、1%植物乳杆菌、12%红糖和10%食盐,测得最终亚硝酸盐含量、还原糖含量、pH和色度分别为(6.92±0.05) mg/kg、(3.42±0.04) g/100 g、4.39±0.001和39.68±0.23。整个发酵过程和结果的理化指标均符合酱腌菜的标准;其风味物质检测出37种,比传统芽菜多17种,其中相对含量较高的是(-)-4-萜品醇、里那醇、α-松油醇、茴香脑。结果可为机械烘干芽菜原料的加工工艺提供理论依据。
关键词(KeyWords): 机械烘干;宜宾芽菜;接种发酵;还原糖含量;风味物质
基金项目(Foundation): 宜宾市科技局2021年省级科技计划转移支付项目(2021ZYNY003);; 川菜工业化四川省高等学校工程研究中心项目(GCZX22-28)
作者(Author): 徐明义,罗素琴,陈俊宏,张靖,王洋,杨强,叶阳
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