論文

基本情報

氏名 沖 智之
氏名(カナ) オキ トモユキ
氏名(英語) OKI TOMOYUKI
所属 中村学園大学 栄養科学部 栄養科学科
職名 教授

題名

Contribution of β-carotene to radical scavenging capacity varies among orange-fleshed sweet potato cultivars

単著・共著の別

 

著者

Tomoyuki Oki, Saki Nagai, Masaru Yoshinaga, Yoichi Nishiba, Ikuo Suda

概要

Orange-fleshed sweet potato (OR-SP) cultivars rich in β-carotene are considered to exhibit higher antioxidant capacity than yellow-fleshed sweet potato (YE-SP) cultivars, consumed commonly in Japan. However, little information exists on the contribution of β-carotene to the antioxidant property. In this study, 2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) cation radical (ABTS                        •+) scavenging capacity in eight OR-SP cultivars and three YE-SP cultivars were measured and compared. The radical scavenging capacity of OR-SP ranged from 493 to 969μmol Trolox equivalent (TE)/kg fresh weight (FW), and that of YE-SP ranged from 254 to 728μmol TE/kg FW. The β-carotene content in OR-SP ranged from 139 to 330 μmol/kg FW and it exhibited 1.66 times higher radical scavenging capacity than a Trolox standard. The contribution of β-carotene to the total radical scavenging capacity was estimated to be in a range of 36.3 to 79.6% in OR-SP. Moreover, by staining the TLC plate with an ABTS                        •+ solution after separating the constituents, it was suggested that a species of radical scavengers were common to all cultivars.

発表雑誌等の名称

Food Science and Technology Research

出版者

 

12

 

開始ページ

156

終了ページ

160

発行又は発表の年月

20060501

査読の有無

無し

招待の有無

無し

記述言語

 

掲載区分

 

掲載種別

 

ISSN

13446606

ID:DOI

10.3136/fstr.12.156

ID:NAID(CiNiiのID)

 

ID:PMID

 

URL

JGlobalID

 

arXiv ID

 

ORCIDのPut Code

 

DBLP ID

 

OpenDepoのWekoID