浙江农业学报 ›› 2021, Vol. 33 ›› Issue (12): 2381-2389.DOI: 10.3969/j.issn.1004-1524.2021.12.18

• 食品科学 • 上一篇    下一篇

山核桃仁碱法脱涩工艺研究

范思敏1,2(), 穆宏磊2, 郜海燕2,*(), 陈杭君2, 房祥军2, 吴伟杰2   

  1. 1.上海大学 生命科学学院,上海 200444
    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,浙江省果蔬保鲜与加工技术研究重点实验室,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:2021-03-26 出版日期:2021-12-25 发布日期:2022-01-10
  • 通讯作者: 郜海燕
  • 作者简介:* 郜海燕,E-mail: spsghy@163.com
    范思敏(1995—),女,新疆奎屯人,硕士研究生,研究方向为果蔬保鲜与加工。E-mail: 1498762773@qq.com
  • 基金资助:
    国家自然科学基金(32172282);浙江省重点研发计划(2018C02006);浙江省农业科学院地方科技合作项目(CA202008)

Study on alkaline deastringency of hickory kernel

FAN Simin1,2(), MU Honglei2, GAO Haiyan2,*(), CHEN Hangjun2, FANG Xiangjun2, WU Weijie2   

  1. 1. School of Life Sciences, Shanghai University, Shanghai 200444, China
    2. Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2021-03-26 Online:2021-12-25 Published:2022-01-10
  • Contact: GAO Haiyan

摘要:

为探索一种利用NaHCO3对山核桃仁脱涩的碱法脱涩工艺,基于综合了脱涩率与感官评分的响应值,通过单因素试验和响应面试验优化其工艺参数,并对比碱法脱涩与传统的沸水脱涩对山核桃仁游离酚、结合酚含量,以及过氧化值、碘值、酸价等指标的影响。结果显示:优化后的碱法脱涩工艺参数为脱涩温度65 ℃,脱涩时间100 min,NaHCO3质量分数5%,固液比(g·mL-1)1∶15。在此条件下,山核桃仁的脱涩率为92.04%,感官评分为9.2分,响应值为75.47。与沸水脱涩相比,碱法脱涩既能去除苦涩味,又能更大限度地保留山核桃仁中的结合酚,减少油脂、脂肪酸和不饱和脂肪酸的氧化,从而更好地保持山核桃仁的品质。

关键词: 山核桃仁, 碱法脱涩, 品质

Abstract:

In order to explore a suitable alkaline deastringency method for hickory kernel, based on the response value (consisting of both deastringency rate and sensory score), single-factor tests and response surface test were adopted to optimize its technical parameters. Besides, the effects of both the proposed alkaline deastringency method and the traditional boiling-water deastringency method on the contents of free phenol and bound phenol, peroxide value, acid value and iodine value were explored. It was shown that the optimized technical parameters were as follows: deastrinency temperature of 65 ℃, deastrinency time of 100 min, NaHCO3 mass fraction of 5%, solid-liquid ratio (g·mL-1) of 1∶15. Under this condition, the deastringency rate was 92.04%, sensory score was 9.2, and the response value was 75.47. Compared with the traditional boiling-water deastringency method, the proposed alkaline deastringency method could remove astringency from hickory kernel, retain more bound phenol, reduce the oxidization of fat, fatty acid and unsaturated fatty acid, and maintain the quality of hickory kernel.

Key words: hickory kernel, alkaline deastringency, quality

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