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Antioxidant phytochemicals and gingerol content in diploid and tetraploid clones of ginger (Zingiber officinale Roscoe)

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Title Antioxidant phytochemicals and gingerol content in diploid and tetraploid clones of ginger (Zingiber officinale Roscoe)
 
Creator S.K. Sanwal, N. Rai, Jagdish Singh, Juri Buragohain
 
Subject Zingiber officinale, Antioxidant phytochemicals, Gingerol, Ploidy
 
Description Fresh rhizomes of 18 diploid and tetraploid genotypes of Indian ginger, including commercial cultivars
and experimental genotypes, were assayed for gingerol content and antioxidant activity. The tetraploid
ginger type was derived from the respective diploid ginger by shoot tip culture. [6]-Gingerol was
identified as the major pungent phenolic compound in all samples (mean 1354.78 470 mg/g), while [8]-
(mean 180.94 45 mg/g) and [10]-gingerol (mean 234 79 mg/g) occurred in lower concentrations. The
total gingerol content of the tetraploid type was much higher than that of the respective diploid type and
especially the [10]-gingerol. Both diploid and tetraploid types of the cv. Meghalaya Local contained the
highest level of gingerol. At both ploidy levels, the genotypes showed significant differences in phenols and
antioxidant activities. Correlation of total phenolics with different antioxidant assay at both diploid and
tetraploid level was linear and strong to moderate. For genotypes at both ploidy levels, antioxidant activity
(BCO) was determined especially by [6]-gingerol while [8]- and [10]-gingerol did not affect BCO. These
results demonstrated that in the tetraploid types of ginger, the gingerol content and antioxidant activity were
higher than in the diploid ones.
 
Date 2017-06-29T10:52:41Z
2017-06-29T10:52:41Z
2010
 
Type Research Paper
 
Identifier Sanwal, S. K., Rai, N., Singh, J., & Buragohain, J. (2010). Antioxidant phytochemicals and gingerol content in diploid and tetraploid clones of ginger (Zingiber officinale Roscoe). Scientia Horticulturae, 124: 280-285.
http://krishi.icar.gov.in/jspui/handle/123456789/4512
 
Language English
 
Publisher Elsevier