Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (12): 2415-2422.DOI: 10.3969/j.issn.1004-1524.2021.12.22

• Food Science • Previous Articles     Next Articles

Antihypertensive active components in edible parts of different varieties of celeries and their in vitro angiotensin converting enzyme inhibitory activities

MA Zijia1(), ZHANG Kaijie2, LU Shengmin1,3,*(), XU Zhihao4, ZHENG Meiyu3, LIU Zhe3, WANG Lu3, YANG Ying3   

  1. 1. College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321000, China
    2. Jiangsu Kaiyi Intelligent Technology Co., Ltd., Wuxi 214100, China
    3. Institute of Food Science/Key Laboratory of Fruit and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
    4. Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2021-05-13 Online:2021-12-25 Published:2022-01-10
  • Contact: LU Shengmin

Abstract:

Nineteen varieties of celeries, including Green stalk celery, White celery, Purple celery, etc. were taken as research materials. Water extracts of the edible parts (stems and leaves) of the celeries investigated were prepared under the same conditions(1∶30 g·mL-1in solid-liquid ratio, 2 h in extraction time and 60 ℃ in extraction temperature) to screen out the varieties and their edible parts with higher in vitro angiotensin converting enzyme (ACE) inhibitory activity, total phenols and total flavonoids contents. The results indicated that in vitro ACE inhibitory activities of celery leaves extracted with water were significantly higher than those with ethanol solution (P<0.05). The in vitro ACE inhibitory activities in leaf aqueous extracts of different celery varieties concentrated in 80%-100%; total flavonoids contents were focused on 200-250 mg·L -1, with highest in White-stalk celery leaf and lowest in White celery leaf; total polyphenols contents were focused on 130-150 mg·L-1, with highest in Purple celery leaf and lowest in Hollow stalk green celery. Correlation analysis indicated that in vitro ACE inhibitory activity was positively related with both of total flavonoids content and total polyphenols content, with their correlation coefficients being 0.3-0.6. Green stalk celery leaf had the lowest half inhibitory concentration (IC50) values of ACE (1.258 mg·mL -1), followed by Four season celery (1.368 mg·mL-1) and White celery leaf (1.829 mg·mL-1).

Key words: celery, varieties, angiotensin converting enzyme inhibitory activity, total flavonoids, total phenolics

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