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Wasabia koreana Nakai: A Preliminary Study on Nutrients and Chemical Compounds That May Impact Sensory Properties

Authors
Kim, Da-SomKim, Hoe SungLee, JookyeongPan, Jeong HoonKim, Young JunKim, Jae KyeomWoo, SeongminShin, Eui-Cheol
Issue Date
10월-2018
Publisher
MDPI
Keywords
Wasabia koreana Nakai; sinigrin; allyl isothiocyanate (AITC); volatile compounds; taste
Citation
MOLECULES, v.23, no.10
Indexed
SCIE
SCOPUS
Journal Title
MOLECULES
Volume
23
Number
10
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/72602
DOI
10.3390/molecules23102512
ISSN
1420-3049
Abstract
In this study, the nutritional, functional, and chemical measurements of sensory attributes of different parts of wasabi, namely, leaf, petiole, and rhizome, were investigated. Proximate composition analysis showed the presence of high amounts of carbohydrates in the rhizome and amino acid composition analysis confirmed high proportions of glutamic acid and aspartic acid in all three parts. While proximate composition showed low lipid content in wasabi, omega-3 fatty acids accounted for a high proportion (> 44%) of the total lipids. Wasabi leaves had high vitamin C and total phenolic contents, and thus demonstrated antioxidant capacity. Allyl isothiocyanate, which gives wasabi its characteristic pungent taste, was identified by gas chromatography/mass spectrometry and an electronic nose. On an electronic tongue, wasabi leaves showed compounds associated with sourness and saltiness while the petiole had high content of compounds associated with sweetness and bitterness. This study provides basic data for the utilization of wasabi parts as food materials based on their nutritional, functional, and chemical measure of sensory attributes.
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