Characterization of Corrinoid Compounds in the Edible Cyanobacterium iNostoc flagelliforme/ithe Hair Vegetable

Fei Teng; Tomohiro Bito; Shigeo Takenaka; Hiroyuki Takenaka; Yuji Yamaguchi; Yukinori Yabuta; Fumio Watanabe

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Characterization of Corrinoid Compounds in the Edible Cyanobacterium iNostoc flagelliforme/ithe Hair Vegetable

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Vitamin B12 contents in the edible cyanobacterium Nostoc flagelliforme, also known as hair vegetable, were assayed using a microbiological method. We detected high vitamin B12 contents in samples of naturally grown cells (109.2 ± 18.5 μg/100g dry weight) and cultured cells (120.2 ± 53.6 μg/100g dry weight). However, commercially available hair vegetable samples, which comprised fake substitutes and Nostoc, had variable contents (4.8 - 101.6 μg/100g dry weight) because concomitant fake items contain very low vitamin B12 contents. To evaluate whether natural and cultured N. flagelliforme samples contained vitamin B12 or pseudovitamin B12, corrinoid compounds were purified and identified as pseudovitamin B12 (approximately 72%) and vitamin B12 (approximately 28%) using silica gel 60 TLC bioautography and LC/MS. The results suggested that N. flagelliforme contains substantial amounts of pseudovitamin B12, which is inactive in humans.

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《食品与营养科学（英文）》 |2014年第4期|334-340|共7页
作者
Fei Teng; Tomohiro Bito; Shigeo Takenaka; Hiroyuki Takenaka; Yuji Yamaguchi; Yukinori Yabuta; Fumio Watanabe;
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作者单位

Department of Veterinary Science;

Graduate School of Life and Environmental Sciences;

Osaka Prefecture University;

Osaka;

Japan;

Division of Applied Bioresources Chemistry;

The United Graduate School of Agricultural Sciences;

Tottori University;

Tottori;

Japan;

MAC Gifu Research Institute;

MicroAlgae Corporation;

Gifu;

Japan.;

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原文格式 PDF
正文语种 chi
中图分类肿瘤学;
关键词
Edible; Cyanobacteria; Hair; Vegetable; Nostoc; flagelliforme; Pseudovitamin; B12; Vitamin; B12;

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1. Utilization of inorganic carbon in the edible cyanobacterium Ge-Xian-Mi （Nostoc） and its role in alleviating photo-inhibition [J] . Qiu ,BS ,Liu . 中国生物学文摘 . 2006,第002期
2. Occurrence of Biologically Inactive Corrinoid Compounds in Canned Edible Apple Snails (Escargots) [J] . Fei Teng ,Yuri Tanioka ,Tomohiro Bito . 食品与营养科学（英文） . 2015,第12期

Characterization of Corrinoid Compounds in the Edible Cyanobacterium iNostoc flagelliforme/ithe Hair Vegetable

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