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Comparison of Anthocyanin and Phenolic Contents between Tuber and Callus of Ipomoea batatas (L.)

Seow Ying Chen, Wai Sum Yap and Wilson Thau Lym Yong

Pertanika Journal of Tropical Agricultural Science, Volume 35, Issue 1, February 2012

Keywords: Ipomoea batatas (L.), tuber culture, callus, determination of anthocyanin, phenolic contents

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This study was aimed to investigate and compare the anthocyanin and phenolic contents between the tuberand callus of Ipomoea batatas (L.). Callus induction was performed in vitro using the Murashige and Skoogmedia supplemented with 0.5 mg/L 2,4-D and 0.1 mg/L kinetin. Meanwhile, the anthocyanin content wasmeasured by pH differential method using cyanidin-3-glucoside as a standard. The total phenolic content wasmeasured using the Folin-Ciocalteu method with gallic acid as a standard. Based on the results obtained, theanthocyanin content of the tuber I. batatas was 1.04 ± 0.12 mg cyanidin-3-glucoside/g fresh weight, while theanthocyanin content of the callus was 0.50 ± 0.07 mg cyanidin-3-glucoside/g fresh weight. The total phenoliccontent of the tuber I. batatas was 0.46 ± 0.01 mg gallic acid/g fresh weight and the phenolic content of thecallus was 0.20 ± 0.01 mg gallic acid/g fresh weight. Both the anthocyanin and phenolic contents of the tuberwere found to be higher than those of the callus of I. batatas.

ISSN 1511-3701

e-ISSN 2231-8542

Article ID

JTAS-0215-2010

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