Effects of freeze-drying on antioxidant and anticholinesterase activities in various cultivars of kiwifruit (Actinidia spp.)

Oxidative stress contributes to neurodegenerative disorders such as Alzheimer’s disease. Phenolic antioxidants can efficiently reduce oxidative stress. In this study, we evaluated the effects of the freeze-drying process on phenolics, antioxidants, and cholinesterase inhibition in five cultivars of...

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Bibliographic Details
Published in:Food science and biotechnology 2017, 26(1), , pp.221-228
Main Authors: Hwang, Jeong-Seung, Cho, Chi Heung, Baik, Moo-Yeol, Park, Seung-Kook, Heo, Ho Jin, Cho, Youn-Sup, Kim, Dae-Ok
Format: Article
Language:English
Subjects:
Acetylcholine
Acetylcholinesterase
Antioxidants
Chemistry
Chemistry and Materials Science
Cholinesterase
Cholinesterase inhibitors
Cultivars
Flavonoids
Food Science
Freeze drying
Kiwifruit
Neurodegenerative diseases
Nutrition
Oxidative stress
Phenolic compounds
Phenols
Sensory evaluation
식품과학
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Summary:Oxidative stress contributes to neurodegenerative disorders such as Alzheimer’s disease. Phenolic antioxidants can efficiently reduce oxidative stress. In this study, we evaluated the effects of the freeze-drying process on phenolics, antioxidants, and cholinesterase inhibition in five cultivars of kiwifruits grown in Korea, Actinidia chinensis cv. Hort16A, cv. Happygold, and cv. Haegeum; A. deliciosa cv. Hayward; and A. eriantha cv. Bidan, by comparing them with their fresh counterparts. Among the five cultivars of both fresh and freeze-dried kiwifruits tested in this study, cv. Bidan had the highest levels of total phenolics, total flavonoids, and antioxidants, and cv. Hayward had the lowest. Freezedried kiwifruits inhibited acetylcholinesterase and butyrylcholinesterase that catalyze the breakdown of acetylcholine (neurotransmitter). On sensory evaluation, cv. Happygold had the highest overall preference scores among the freeze-dried kiwifruits. The results suggest that freeze-dried kiwifruit could serve as a good source of antioxidants and cholinesterase inhibitors.
ISSN:1226-7708
2092-6456
DOI:10.1007/s10068-017-0030-5